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Un ex desarrollador de BioWare se muestra optimista sobre el próximo Mass Effect y señala que puede ser la primera vez que un desarrollador puede centrarse únicamente en un solo proyecto.

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  • El ex desarrollador de BioWare, Mark Darrah, ha ofrecido su opinión sobre el próximo juego Mass Effect.
  • Un equipo puede estar en la posición única de tener un solo proyecto en el que centrarse.
  • Dorra confirma que el proyecto aún necesita que se forme un equipo más grande a su alrededor

Un ex productor ejecutivo de BioWare afirmó que el estudio ahora podría centrarse “singularmente” en lo que sigue efecto masa juego.

Como se informó JuegosRadarMark Darrah, quien trabajó en BioWare durante 24 años antes de irse en 2021, tenía algunas ideas que compartir sobre el próximo lanzamiento. efecto masa El proyecto anteriormente era solo para miembros. vídeo de youtube ¿Quién hizo las rondas? Restablecer la era.

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El nuevo estudio del creador de Mass Effect cerrará después de tres años

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Origen Humanoide estará cerrado. el Un estudio de juegos independiente de tres añosdirigido por el ex director general de BioWare y creador de Mass Effect, Casey Hudson, es la última víctima de una racha brutal para los desarrolladores de juegos y otros profesionales de la industria.

En LinkedIn correo Al anunciar el cierre, Humanoid Origin dijo que sus esfuerzos por proteger a su equipo de los problemas de la industria no fueron suficientes. “Una inesperada falta de financiación nos ha dejado sin poder continuar con las operaciones”, escribió el estudio.

Hudson fundó el estudio (entonces llamado Humanoid Studios) en 2021 cuando la contratación en la industria estaba ganando impulso después de que se levantaron los bloqueos por coronavirus. Describió la startup como una forma de “liberar la libertad creativa de los desarrolladores” al “llevar innovación y arte a los jugadores a través de una nueva propiedad intelectual”. Su sitio web celebrar Contenido creado en torno a mundos interactivos, personajes y narraciones, al mismo tiempo que adopta la innovación que “parece mágica”.

Arte conceptual de ciencia ficción: un bar en el espacio con un techo abovedado que muestra un barco pasando por encima. La gente se está mezclando.Arte conceptual de ciencia ficción: un bar en el espacio con un techo abovedado que muestra un barco pasando por encima. La gente se está mezclando.

El origen del hombre

Al año siguiente, el estudio dijo que estaba trabajando en un juego AAA multiplataforma ambientado en un “universo de ciencia ficción completamente nuevo”. IGN masculino el lunes que Humanoid Origin estaba contratando en mayo de este año.

“Nos entristece no poder completar el nuevo universo de ciencia ficción”, escribió hoy el estudio. “Nuestra principal preocupación en este momento es nuestro equipo y estamos comprometidos a apoyarlos en su transición hacia nuevas carreras”.

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Is the Internet bad for you? Huge study reveals surprise effect on well-being

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A woman and a man sit in bed in a dark bedroom, distracted by a laptop computer and a smartphone respectively.

People who had access to the Internet scored higher on measures of life satisfaction in a global survey.Credit: Ute Grabowsky/Photothek via Getty

A global, 16-year study1 of 2.4 million people has found that Internet use might boost measures of well-being, such as life satisfaction and sense of purpose — challenging the commonly held idea that Internet use has negative effects on people’s welfare.

“It’s an important piece of the puzzle on digital-media use and mental health,” says psychologist Markus Appel at the University of Würzburg in Germany. “If social media and Internet and mobile-phone use is really such a devastating force in our society, we should see it on this bird’s-eye view [study] — but we don’t.” Such concerns are typically related to behaviours linked to social-media use, such as cyberbullying, social-media addiction and body-image issues. But the best studies have so far shown small negative effects, if any2,3, of Internet use on well-being, says Appel.

The authors of the latest study, published on 13 May in Technology, Mind and Behaviour, sought to capture a more global picture of the Internet’s effects than did previous research. “While the Internet is global, the study of it is not,” said Andrew Przybylski, a researcher at the University of Oxford, UK, who studies how technology affects well-being, in a press briefing on 9 May. “More than 90% of data sets come from a handful of English-speaking countries” that are mostly in the global north, he said. Previous studies have also focused on young people, he added.

To address this research gap, Pryzbylski and his colleagues analysed data on how Internet access was related to eight measures of well-being from the Gallup World Poll, conducted by analytics company Gallup, based in Washington DC. The data were collected annually from 2006 to 2021 from 1,000 people, aged 15 and above, in 168 countries, through phone or in-person interviews. The researchers controlled for factors that might affect Internet use and welfare, including income level, employment status, education level and health problems.

Like a walk in nature

The team found that, on average, people who had access to the Internet scored 8% higher on measures of life satisfaction, positive experiences and contentment with their social life, compared with people who lacked web access. Online activities can help people to learn new things and make friends, and this could contribute to the beneficial effects, suggests Appel.

The positive effect is similar to the well-being benefit associated with taking a walk in nature, says Przybylski.

However, women aged 15–24 who reported having used the Internet in the past week were, on average, less happy with the place they live, compared with people who didn’t use the web. This could be because people who do not feel welcome in their community spend more time online, said Przybylski. Further studies are needed to determine whether links between Internet use and well-being are causal or merely associations, he added.

The study comes at a time of discussion around the regulation of Internet and social-media use, especially among young people. “The study cannot contribute to the recent debate on whether or not social-media use is harmful, or whether or not smartphones should be banned at schools,” because the study was not designed to answer these questions, says Tobias Dienlin, who studies how social media affects well-being at the University of Vienna. “Different channels and uses of the Internet have vastly different effects on well-being outcomes,” he says.

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Measurement of the superfluid fraction of a supersolid by Josephson effect

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Supersolids are a fundamental phase of matter originated by the spontaneous breaking of the gauge symmetry as in superfluids and superconductors and of the translational symmetry as in crystals13,14,15,16. This gives rise to a macroscopic wavefunction with spatially periodic modulation and to mixed superfluid and crystalline properties. Supersolids were originally predicted in the context of solid helium13,14,15,16. Today, quantum phases with spontaneous modulation of the wavefunction are under study in a variety of bosonic and fermionic systems. These include: the second layer of 4He on graphite1,2; ultracold quantum gases in optical cavities5, with spin–orbit coupling6 or with strong dipolar interactions7,8,9,21; the pair-density-wave phase of 3He under confinement3,4; and pair-density-wave phases in various types of superconductor10,11,12. Related phases have been observed in frustrated magnetic systems22 or proposed to exist in the crust of neutron stars23 and for excitons in semiconductor heterostructures24. The periodic structure of the wavefunction of all these systems is a prerequisite for supersolidity, which has so far, however, emerged clearly only in some cold-atom systems with the evidence of the double spontaneous symmetry breaking and of the mixed superfluid-crystalline character5,25,26. The experiments carried out so far on the other types of system have proved the coexistence of superfluidity/superconductivity and crystal-like structure1,2,3,4,10,11,12, but no quantitative connection of the observations to the concept of supersolidity has been made. One of the difficulties in comparing different types of system with spatial modulation of the wavefunction is the seeming lack of a universal property quantifying the deviations from the dynamical behaviour of ordinary superfluids or superconductors.

Here we note that a property with such characteristics already exists, the so-called superfluid fraction of supersolids, well known in the field of superfluids but not in that of superconductors. The superfluid fraction, introduced by A. J. Leggett in 1970 (ref. 16), quantifies the effect of the spatial modulation on the superfluid stiffness, which is in itself a defining property of superfluids and superconductors. The superfluid stiffness indeed measures the finite energy cost of twisting the phase of the macroscopic wavefunction and accounts for all fundamental phenomena of superfluidity, such as phase coherence, quantized vortices and supercurrents27. As sketched in Fig. 1, whereas in a homogeneous superfluid/superconductor the phase varies linearly in space, in a modulated system, most of the phase variation can be accommodated in the minima of the density, reducing the energy cost. Because the superfluid velocity is the gradient of the phase, this implies that peaks and valleys should move differently, giving rise to complex dynamics with mixed classical (crystalline) and quantum (superfluid) character. For example, fundamental superfluid phenomena such as vortices and supercurrents are predicted to be profoundly affected by the presence of the spatial modulation, losing the canonical quantization of their angular momentum16,17,18,28. The superfluid fraction, which ranges from unity for standard superfluids to zero for standard crystals, enters directly in all these phenomena and is therefore the proper quantity to assess the deviations from standard superfluids and superconductors. Note that the superfluid fraction of supersolids is not related to thermal effects, in contrast to the superfluid fraction owing to the thermal depletion of superfluids and superconductors29.

Fig. 1: Superfluid fraction in superfluids and supersolids.
figure 1

Sketches of the superfluid fraction from the application of a phase twist in a bosonic system at zero temperature. a, In a homogeneous superfluid, a phase twist with amplitude Δφ results in a constant gradient of the phase, that is, a constant velocity, whereas in a supersolid (b,c), the kinetic energy can be minimized by accumulating most of the phase variation in the low-density regions. The grey and green areas represent the number density and the kinetic energy density, respectively, whereas the phase profile is plotted in red. The superfluid fraction is the ratio of the area under the green curve to that of the homogeneous case. b, Leggett’s approach, which—for an annular system—would correspond to a stationary rotation, leads to a monotonous increase of the phase. c, Our method, based on an alternating oscillation of the phase, leads to Josephson oscillations. Both kinetic energy and superfluid fraction are the same for b and c.

The standard methods to measure the superfluid stiffness are based on the measurement of global properties such as the moment of inertia for rotating superfluids1,2 or the penetration depth of the magnetic field for superconductors30. In dipolar supersolids, previous attempts using rotational techniques revealed a large superfluid fraction31 but were not precise enough to assess its sub-unity value32,33. In the other systems, there is evidence that the superfluid stiffness is low1,2,30, but no quantitative measurement of a sub-unity superfluid fraction is available.

In this work, we demonstrate that it is possible to measure the superfluid fraction of a supersolid not only from global dynamics but also from a fundamental phenomenon taking place in individual cells of the supersolid lattice: the Josephson effect19. As sketched in Fig. 1, the unit cell of a 1D supersolid lattice is composed by two density maxima connecting through a density minimum, so it has the typical structure of a Josephson junction, two bulk superfluids connected by a weak link. It is therefore tempting to associate supersolidity to the very existence of local Josephson dynamics. So far, the analogy between a supersolid and an array of Josephson junctions has only been used to model the relaxation towards the ground state of a dipolar supersolid20. There is instead no theoretical or experimental evidence for local Josephson oscillations or an understanding of the potential relation between the Josephson effect and the superfluid fraction. The problem is complicated by the fact that, in supersolids, the weak links are self-induced by internal interactions rather than by an external potential, so they can change during the dynamics. Therefore, it is not clear if phenomena such as Josephson oscillations can exist at all in a supersolid.

Here we demonstrate experimentally and theoretically that a supersolid can, in fact, sustain coherent phase-density oscillations, behaving as an array of Josephson junctions. We also show that the Josephson coupling energy that we can deduct from the Josephson oscillations provides a direct measurement of the superfluid fraction. We use this new approach to measure with high precision the superfluid fraction of the dipolar supersolid appearing in a quantum gas of magnetic atoms. We find a range of sub-unity values of the superfluid fraction, depending on the depth of the density modulation in accordance with Leggett’s predictions.

Leggett’s approach to the superfluid fraction considers an annular supersolid in the rotating frame and maps it to a linear system with an overall phase twist, as sketched in Fig. 1b. The superfluid fraction is defined on a unit cell as16,34

$${f}_{{\rm{s}}}=\frac{{E}_{{\rm{kin}}}}{{E}_{{\rm{kin}}}^{{\rm{\hom }}}}.$$

(1)

The numerator is the kinetic energy acquired by the supersolid with number density n(x) when applying a phase twist Δφ over a lattice cell of length d, \({E}_{{\rm{kin}}}={\hbar }^{2}/(2m){\int }_{{\rm{cell}}}dx\,n(x)\,{| \nabla \varphi (x)| }^{2}\), and thus accounts for density and phase modulations. The denominator \({E}_{{\rm{kin}}}^{{\rm{\hom }}}=Nm{v}_{{\rm{s}}}^{2}/2\) is the kinetic energy of a homogeneous superfluid of N atoms and velocity vs = ħΔφ/(md) associated with a constant phase gradient Δφ across the cell. Using a variational approach16,35, Leggett found an upper and a lower bound for equation (1), \({{f}_{{\rm{s}}}}^{{\rm{l}}}\le {f}_{{\rm{s}}}\le {{f}_{{\rm{s}}}}^{{\rm{u}}}\); see Methods. In particular, the upper bound

$${{f}_{{\rm{s}}}}^{{\rm{u}}}={\left(\frac{1}{d}{\int }_{0}^{d}\frac{dx}{\bar{n}(x)}\right)}^{-1},$$

(2)

in which \(\bar{n}(x)\) is the normalized 1D density, restricts fs to be lower than unity if the density is spatially modulated. Note that the calculation of the superfluid fraction, which is a global property, by considering a single lattice cell is possible owing to the periodicity of the wavefunction of the supersolid16.

We propose an alternative expression for the superfluid fraction, considering Josephson phase twists with alternating sign between neighbouring lattice sites of a supersolid, as sketched in Fig. 1c. This corresponds to a different type of motion of the supersolid, with no global flow but with alternate Josephson phase-density oscillations between sites. Also, in this case, we can consider a single cell, because the kinetic energy is proportional to |φ(x)|2, so it does not depend on the sign of the phase twist. In the limit of small excitations (Δφ → 0), the kinetic energy of a Josephson junction is given by Ekin = NKΔφ2, in which K is the coupling energy across the barrier36. From equation (1), we thus find:

$${f}_{{\rm{s}}}=\frac{K}{{\hbar }^{2}\,/\,(2m{d}^{2})},$$

(3)

showing a direct relation between the superfluid fraction and the coupling energy of the junction. We note that an expression similar to the upper bound in equation (2) was derived by Leggett for the coupling energy of a single Josephson junction37, however without discussing the connection to the superfluid fraction.

We now demonstrate the existence of coherent Josephson-like oscillations in a dipolar supersolid7,8,9. This system is particularly appealing to study fundamental aspects of supersolidity38: the supersolid lattice is macroscopic, with many atoms per site and large superfluid effects; the available control of the quantum phase transition allows to directly compare supersolids and superfluids; and interactions are weak, allowing a fairly accurate theoretical modelling39. Our experimental system7 is composed of about N = 3 × 104 bosonic dysprosium atoms, held in a harmonic trap elongated along the x direction, with trap frequencies (ωx, ωy, ωz) = 2π(18, 97, 102) Hz. By tuning the relative strength εdd of dipolar and contact interactions, we can cross the quantum phase transition from a standard Bose–Einstein condensate (BEC) to the supersolid regime (Methods). The supersolid lattice structure is 1D, leading to a continuous phase transition40. Our typical supersolid is made of two main central clusters and four smaller lateral ones, with a lattice period d 4 μm, as shown in Fig. 2. We can vary the density modulation depth by varying the interaction strength in the range εdd = 1.38–1.45; further increasing εdd leads to the formation of an incoherent crystal of separate clusters, the so-called droplet crystal, a regime that we cannot study experimentally because of its short lifetime7.

Fig. 2: Josephson oscillations in a supersolid.
figure 2

a, Sketch of the experimental system. The black line is the supersolid density profile at equilibrium. The dashed green line is the optical lattice potential used for the phase imprinting. b, Examples of experimental single shots and corresponding integrated 1D profiles. Top row, interference fringes after a free expansion. Red curves are fit functions used to extract the phase difference Δφ. Bottom row, in situ images. Shaded areas indicate the populations of the left and right halves of the supersolid used to extract the population imbalance Z. c, Oscillations of Z as a function of time at εdd = 1.428. Dots are experimental points. Error bars are the s.e.m. of 20–30 measurements. The solid line is the numerical simulation for the same parameters. The dashed line is a sinusoidal fit to the experimental data. d, Same for Δφ. Experimental values and error bars are calculated using the circular mean and s.e.m. (see Methods).

Source Data

Because our system is inhomogeneous, we focus our attention on the central cell, the one delimited by clusters 3 and 4 in Fig. 2. As we will show, the superfluid fraction we derive from that cell corresponds to the superfluid fraction of a hypothetical homogeneous supersolid with all cells identical to the central cell, as in Fig. 1, which is the system of general interest.

We find that the application for a short time of an optical lattice with twice the spacing of the supersolid (sketched in Fig. 2a) imprints the proper alternating phase difference between adjacent clusters to excite Josephson oscillations. With a depth of 100 nK and an application time of τ = 100 μs, we obtain a phase difference on the order of π/2. After a variable evolution time in the absence of the lattice, we measure both the evolving phase difference Δφ between neighbouring clusters and the population difference Z between the left and right halves of the supersolid. Δφ is measured from the interference fringes developing after a free expansion (snapshots in Fig. 2b, top row), whereas Z is measured by in situ phase-contrast imaging (Fig. 2b, bottom row) (Methods). As shown in Fig. 2c,d, we observe single-frequency oscillations of Z and Δφ, with the characteristic π/2 phase shift of the standard Josephson dynamics19,36,41,42,43,44. The observation time is limited to about 100 ms by the finite lifetime of the supersolid, owing to unavoidable particle losses7. The experimental observations agree very well with numerical simulations based on the time-dependent extended Gross–Pitaevskii equation (GPE), also shown in Fig. 2c,d (Methods). We have checked that the Josephson oscillations are not observable if we apply the same procedure to standard BECs instead of supersolids (see Methods).

The observation of a single frequency in both experiment and simulations indicates that not only is it possible to excite Josephson-like oscillations in a supersolid but also they are a normal mode of the system. To model our observations, we develop a six-mode model, generalizing the two-mode Josephson oscillations36 to the case of six clusters (see Methods). We associate to the jth cluster a population Nj and a phase φj (j = 1,…,6). In general, the dynamics includes contributions from each cluster and shows several frequencies. However, we find that, under appropriate conditions among the interaction and coupling energies, there exists a normal mode of the system in which the dynamical variables of the two central clusters of the supersolid decouple from the lateral ones. This results in Josephson-like oscillations described by the two coupled equations

$$\Delta \dot{N}=-4K{N}_{34}\sin (\Delta \varphi )$$

(4a)

$$\dot{\Delta \varphi }=U\Delta N$$

(4b)

in which ΔN = N3 − N4, N34 = N3(0) + N4(0), Δφ = φ3 − φ4 and U is the interaction energy per particle. These equations hold for interaction energies N34U much larger than K (for our system, N34U/(2K) > 25; see Methods). Because in our case ΔNN, we keep only linear terms in ΔN/N.

Equations (4a) and (4b) are equivalent to those of a simple pendulum with angle Δφ and angular momentum ΔN and, in the small-angle limit, feature sinusoidal oscillations with a single frequency, \({\omega }_{{\rm{J}}}=\sqrt{4{KUN}_{34}}\). We emphasize that the current–phase relation equation (4a) as well as ωJ2 differ by a factor of 2 with respect to the Josephson equations of two weakly coupled BECs, owing to the contribution of the lateral clusters, but are equal to those of a hypothetical homogeneous supersolid. Notice also that equations (4a) and (4b) depend only on the coupling energy K and the interaction energy U of the two central clusters, in contrast to the expectation that the inhomogeneity of the trapped system may introduce other energies in the equations of motion. We checked by Gross–Pitaevskii simulations that our experimental configuration satisfies the conditions to have a Josephson-like normal mode (namely, equation (7) in Methods).

In the experiment, we are not able to resolve the population of the individual clusters but we study the population difference between the left and right halves of the system, Z = (N1 + N2 + N3 − N4 − N5 − N6)/N. There is a proportionality relation between the two observables, ΔN = 2NZ, which allows us to rewrite equations (4a) and (4b) in terms of the experimental observables (Methods).

An important difference between a cell of the supersolid and a standard Josephson junction is the fact that, in the supersolid, the position of the weak link is not fixed by an external barrier but it is self-induced, so it can move. This leads to the appearance of a low-energy Goldstone mode associated with the spontaneous translational symmetry breaking. In a harmonic potential, it consists of a slow oscillation of the position of the weak link, together with the density maxima, and an associated oscillation of both Z and Δφ (ref. 26). Owing to its low frequency (on the order of a few Hz), the Goldstone mode is spontaneously excited by thermal fluctuations, resulting in shot-to-shot fluctuations of the experimental observables. The same low frequency, however, allows to separate Josephson and Goldstone dynamics in both experiment and theory (Methods).

We measure the Josephson frequency ωJ from a sinusoidal fit of the phase and population dynamics in Fig. 2c,d. We repeat the measurement by varying the interaction parameter εdd, corresponding to different depths of the supersolid density modulation. Figure 3 shows the fitted frequencies as a function of εdd and a comparison with the numerical simulations. We observe a decrease of the frequency for increasing εdd. This is justified by the fact that the superfluid current across the junction decreases because a larger and larger portion of the wavefunction remains localized inside the clusters (see insets in Fig. 3). This reduces the coupling energy K while only weakly affecting the interaction energy.

Fig. 3: Josephson oscillation frequency versus the interaction parameter.
figure 3

Red dots are the experimental frequencies for Δφ. Filled and open blue dots are the frequencies for Z measured by in situ imaging with and without optical separation, respectively (Methods). Vertical error bars are the uncertainties in the nonlinear fit of the sinusoidal oscillations shown in Fig. 2c,d. Horizontal error bars represent the experimental resolution in εdd (Methods). The red point at εdd = 1.444 is shifted slightly horizontally for clarity. Black points are the results of numerical simulations. The dashed line is a guide for the eye. The insets show the modulated ground-state density profiles obtained from numerical simulations for different values of εdd. The vertical dotted line marks the critical point of the superfluid–supersolid quantum phase transition.

Source Data

From the Josephson frequency, we can derive the coupling energy as K = ωJ2/(4UN34), with the denominator obtained from the simulations. We verified that this relation holds not only in the small-amplitude regime of the simulations but also for the larger amplitudes of the experiment.

From the measured K, we derive in turn the superfluid fraction using equation (3). The results are shown in Fig. 4 and feature a progressive reduction of the superfluid fraction below unity for increasing depths of the supersolid modulation. The experimental data are in good agreement with the numerical simulations (green dots), in which—according to equation (4a)—the coupling energy is obtained from the linear dependence of dZ/dt on sin(Δφ) (current–phase relation); see Fig. 4b. A similar analysis (Fig. 4c) was performed on the experimental data for which we have combined phase and population oscillations (pink dots in Fig. 4a). The results for these data points demonstrate the reduced superfluid fraction of the supersolid with no numerical input on the interaction energy U.

Fig. 4: Superfluid fraction from Josephson oscillations.
figure 4

a, Superfluid fraction as a function of εdd. Black dots are experimental results derived from the Josephson frequencies. Vertical error bars result from the error propagation of equation (3), with K = ωJ2/(4UN34); see Methods. Green dots are results from numerical simulations. Error bars are the uncertainties of the linear fits used to determine K and UN34. Pink points are derived from the experimental phase–current relation, as in c. Error bars are estimated using the propagation of equation (3), with K and its relative uncertainty extracted from linear fits of experimental data. The open pink point at εdd = 1.444 is the dataset without the optical-separation technique (Methods). The grey band extends between the upper and lower bounds of equation (1). b,c, Phase–current relation at εdd = 1.444. The points show the results of numerical simulations (b) and experimental measurements (c). From the linear regressions (green and pink lines), we extract the coupling energy K according to equation (4a). Shaded regions are the confidence bands for one s.d.

Source Data

In Fig. 4a, we also compare our results with Leggett’s prediction of equation (2), relating the superfluid fraction to the density modulation of the supersolid. From the numerical density profiles, we calculate both the upper bound \({{f}_{{\rm{s}}}}^{{\rm{u}}}\) and the corresponding lower bound35 \({{f}_{{\rm{s}}}}^{{\rm{l}}}\), which delimit the grey area in Fig. 4a (see Methods). The two bounds would coincide if the density distribution were separable in the transverse coordinates y and z. Because our supersolid lattice is 1D, the two bounds are close to each other. The superfluid fraction calculated from the simulated dynamics lies between the two bounds in the whole supersolid region we investigated, demonstrating the applicability of Leggett’s result to our system.

In conclusion, the overall agreement between experiment, simulations and theory on our dipolar supersolid proves the long-sought sub-unity superfluid fraction of supersolids and its relation to the spatial modulation of the superfluid density. The demonstration of self-sustained Josephson oscillations in a supersolid provides a new proof of the extraordinary nature of supersolids compared with ordinary superfluids and crystals. These oscillations indeed cannot exist neither in crystals, in which particles are bound to lattice sites, nor in ordinary superfluids, which do not have a lattice structure.

Our findings open new research directions. The observed reduction of the superfluid fraction with increasing modulation depths may explain the low superfluid stiffness measured in other systems, such as 4He on graphite1,2 or superconductors hosting pair-density-wave phases10,11,12. An important question related to the pair-density waves in fermionic systems is how Leggett’s bounds on the superfluid fraction may be extended to systems in which the superfluid density and particle density do not coincide. Note that equation (2) is also applicable to standard superfluids with an externally imposed spatial modulation, as demonstrated for BECs in optical lattices by means of measurements of the effective mass41 or of the sound velocity45,46. In the supersolid, however, the dynamics linked to the reduced superfluid fraction is not constrained by an external potential and so totally new phenomena might be observed. The large value of fs we measured for the dipolar supersolid, which remains larger than 10% also for deep density modulations, indicates that partially quantized supercurrents16,18 and vortices17 should appear at a macroscopic level.

Owing to the generality of the Josephson effect, our Josephson-oscillation technique might be applied to characterize the local superfluid dynamics of the other supersolid-like phases under study in superfluid and superconducting systems. Equation (3) is applicable in general, considering that the detection of Josephson oscillations implies measurement of both the coupling energy and the spatial period of the superfluid density modulation. For example, a promising type of system may be the pair-density-wave phase in superconductors, in which the modulation has already been resolved. The Josephson-oscillation technique works naturally in linear geometries and so it does not require any adaptation for the finite size of the clusters in the supersolid-like phases available in experiments1,2,3,4,5,6,7,8,9,10,11,12, differently from the rotation technique16 (see Methods).

Furthermore, the self-induced Josephson junctions we have identified in supersolids might have extraordinary properties resulting from the mobility of the weak links. Indeed, although the Goldstone mode of the weak links is not relevant for the Josephson dynamics owing to its very low energy, for the same reason, it may affect the fluctuation properties of the junction47, potentially leading to new thermometry methods48 and especially to previously unknown entanglement properties49.

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NIH pay raise for postdocs and PhD students could have US ripple effect

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Striking University of California academic workers walk the picket line with placards on the Campus of the University of California, Los Angeles.

Academic workers walk a picket line at the University of California, Los Angeles.Credit: Gary Coronado/Los Angeles Times via Getty

Amid a reckoning over poor job prospects and stagnating wages for early career scientists, the US National Institutes of Health (NIH) said it will raise the salaries of thousands of postdoctoral researchers and graduate students who receive a prestigious NIH research fellowship. The move could boost pay for other scientists as well, because academic institutions often follow guidelines set by the NIH.

Beginning immediately, postdocs who hold one of the agency’s Ruth L. Kirschstein National Research Service Awards (NRSA) will now earn at least $61,008 per year — an 8% increase and the largest year-over-year increase the NIH has implemented since 2017. Postdocs’ salaries, which are adjusted for years of experience, are capped at $74,088 per year. Graduate students’ yearly salaries will rise by $1,000, amounting to a minimum annual salary of $28,224.

“This is a major step in the right direction and something that the majority will agree is widely needed to retain talent in the biomedical and academic research sectors,” says Francisca Maria Acosta, a biomedical engineer and postdoc at UT Health San Antonio in Texas who is herself funded through an NRSA.

Postdoc shortage

In 2022, the agency assembled an advisory group on how best to retain and cultivate postdoctoral talent following reports that principal investigators (PIs) were struggling to fill vacant postdoc positions. In December, the panel released recommendations that suggested a minimum salary of $70,000 for postdocs.

The NIH agreed that a salary increase is indeed needed for the more than 17,000 research trainees covered by the NRSAs. The agency will also provide an extra $500 in subsidies for childcare and $200 for training-related expenses. In this week’s announcement, the agency acknowledged that this increase falls short of the council’s recommendation, and cited its tight budget in recent years.

It added that “pending the availability of funds through future appropriations,” the agency would increase salaries to meet the recommended $70,000 target in the next three to five years, while also suggesting that NIH-funded institutions could supplement salaries in other ways. That presents a challenge, according to Sharona Gordon, a biophysicist at the University of Washington in Seattle, when the NIH’s modular R01 grants — one of the primary research awards given to PIs to fund their labs — have remained at $250,000 since they were introduced in 1998. Such grants cannot be used to supplement salaries, meaning lab heads have to pull money from other sources to increase trainees’ pay.

Even scientists who approve of the NIH’s move say it could have unintended consequences. “For institutions such as ours, which mandate that the postdoc minimum salary be set to the NIH minimum, there are some concerns that this increase in personnel costs could be a barrier for labs based on funding levels,” Acosta says.

For some, the five-year timeline for the increase feels insufficient. Haroon Popal, a cognitive science postdoc at the University of Maryland in College Park whose work is funded by the NIH, says that while he understands the pressures on the agency, the new salary will not be enough to support him as he assumes multiple caregiving responsibilities. Even with the boost, postdoc positions in academia fall far short of what researchers could make in government, industry, or nonprofit positions. “This is an issue of diversity and equity for me,” he says. “The new postdoc salary is not allowing people like me to be in academia, which is counter to the NIH’s, institutions’, and our scientific community’s goals of increased diversity.”

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NYXI Warrior game controller with Hall Effect Sensors

NYXI Warrior game controller with Hall Effect Sensors

NYXI has launched the NYXI Warrior, a new game controller that combines Gamecube-inspired design with modern technological advancements. The controller is designed to meet the demands of gamers seeking an improved experience with their Switch consoles. Key features and innovations of the NYXI Warrior include:

  • Hall Effect Sensors: The joysticks and triggers incorporate Hall effect sensors to eliminate drift and provide accurate control, enhancing gameplay in various game genres.
  • Customization: The NYXI Warrior offers adjustable trigger lengths and interchangeable back paddles, allowing gamers to tailor the controller to their preferences for both competitive and casual play.
  • Multi-Platform Compatibility: The controller is compatible with multiple platforms, including Switch, Gamecube, Wii, and Windows systems.
  • Connectivity Options: Gamers can connect the controller via Bluetooth, 2.4G wireless, or USB-C wired connections.
  • Additional Features: The controller also includes HD rumble, a 6-axis gyroscope, and an 8-way D-pad for precise directional control.

At the heart of the NYXI Warrior, you’ll find Optical Microswitches. These are not your average switches; they react faster and last longer than the usual ones. This means every press of the D-pad or face button is quick and reliable, which can make all the difference in fast-paced games.

NYXI Warrior game controller

When it comes to control, precision is key. The NYXI Warrior’s Hall Effect Sensors are top-notch for this. They make sure your joystick and trigger movements are accurate, so you won’t have to worry about the annoying drift issue that can ruin your game. If you like to tweak your gear, the NYXI Warrior has got you covered. You can adjust the trigger length and swap out the back paddles to fit exactly how you play. This kind of customization can give you an edge, whether you’re in it to win it or just playing for fun.

Features :

— Compatibility: Switch (3.0.0 or above), Gamecube, Wii, Windows (Windows 10 or above)
— Connectivity: Bluetooth, 2.4G Wireless Connection, USB-C Wired Connection
— Hall Effect Joystick
— Adjustable Hall Sensing Triggers
— Interchangeable Back Paddle
— Freely choose programmable back buttons and turbo function.
— Optical Microswitches A/B/X/Y & D-Pad
— Mechanical L/R Buttons
— HD RUMBLE
— 6-Axis Gyroscope
— 8-Way D-pad for Precise and Versatile Directional Control

One of the best things about this controller is that it works with many different systems. It’s compatible with the Switch, Gamecube, Wii, and Windows. This means you can have the same great gaming experience no matter what platform you’re on.

The NYXI Warrior also gives you the freedom to play how you want. It comes with Bluetooth, 2.4G wireless, and USB-C wired connection options. So, you can go cord-free or plug in for a steady connection—it’s all up to you.But that’s not all. The controller also has HD rumble for a more immersive feel and a 6-axis gyroscope for responsive motion controls. The 8-way D-pad ensures you can navigate through any game with precision.

The NYXI Warrior Game Controller is all about bringing together a cool retro look with the functionality you expect from modern tech. It’s made for gamers who care about performance and style. You can pre-order now and elevate your gaming experience with this impressive controller.

Filed Under: Gaming News, Top News





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The Exodus Effect Reviews: Is It Worth It?

In recent years, numerous individuals have become interested in holy anointing fragrances. Often, anointing oil is associated with God’s presence and divine power. Due to its versatility and historical use among Christians, the Exodus Effect is among the most potent anointing oils available.

The Exodus Effect is an e-book that contains the recipe for the most potent sacred anointing oil. This book provides information on creating an exceptional and highly effective blessing oil.

The Exodus Effect has the potential to provide a variety of health benefits and resolve numerous health concerns, including pain relief and inflammation, among others. What is the significance of the Exodus Effect? This article will discuss several remarkable aspects of this fantastic book.

About The Exodus Effect?

The Exodus Effect is a religious anointing oil that contains natural and scientifically proven ingredients to reduce pain, boost immunity, and strengthen faith. The Exodus Effect is an organized manual that Christians and non-Christians can use to generate their own healing oil from natural ingredients.

It contains no stimulants and is non-addictive. The active ingredients are associated with health and longevity. According to the producers of the Exodus Effect, biblical figures such as Methuselah, Adam, and Ibrahim used the anointing oil daily. However, translating the Bible into various languages resulted in the loss of the “key” component of the anointing oil.

Benefit of cannabis plant

Exodus 30:22 lists the advantages of the original anointing oil that God created. The cannabis plant mentioned in the Bible produces anointing oil that can:

  • Reduce persistent muscle, joint, and body discomfort.
  • Stimulate the immune system.
  • Enhance blood transport
  • Enhance digestion
  • Strengthen belief in God.
  • Confront sleep problems

How Does the Exodus Effect Work?

The Exodus Effect is composed of genuine CBD oil extracted from high-quality hemp. Together with other natural extracts, the Exodus Effect is swiftly absorbed into the body and provides significant health benefits to users. The guide explains how to produce CBD without THC locally. It also strengthens and enhances the endocannabinoid system. It improves digestion, circulation, and respiration, among other processes. Additionally, it targets pain and eradicates it swiftly at its source.

Key Ingredient of The Exodus Effect

According to the creators of the Exodus Effect, anyone can create the anointing oil at home. All the constituents are readily available, based on science, and safe. In addition, all Exodus Effect ingredients are natural, so it is unlikely that users will experience negative side effects. Here’s an overview of these ingredients and how they can be a great addition to your anointing oil:

Cannabis: Cannabis comprises CBD elements that provide the body with cannabinoids, thus boosting its functions. 

Myrrh: Myrrh is a popular ingredient in anointing fragrances and one of the most frequently employed biblical herbs. The makers of The Exodus Effect assert that the herb can treat various prevalent ailments, including indigestion, leprosy, arthritis, and gout.

Cassia: Cassia is a plant extract that can enhance muscular health and circulation. According to experts, it can benefit the blood vessels and reduce the likelihood of developing hypertension.

Cinnamon: The sweet-smelling substance is a detoxifying agent that can reduce blood toxicity levels. Moreover, it can combat free radicals, thereby promoting cell regeneration.

Benefits of The Exodus Effect

  • The anointing oil has the potential to treat chronic inflammations and discomfort.
  • Its ingredients can enhance the immune response 
  • It may reduce the risk of developing various health issues 
  • The anointing oil may aid in weight reduction.
  • It can raise the energy levels of natural 
  • It can enhance physical and mental performance.
  • It may fortify one’s Christian faith 
  • It can supposedly open the gates of divine blessings 
  • A satisfaction guarantee protects each purchase 
  • The essential ingredients are ostensibly natural, scientific, and historically grounded.

Pros and Cons of The Exodus Effect

Pros:

  • Simple to follow.
  • Made with only natural ingredients.
  • Effective in treating serious illnesses and sustaining health.
  • Suitable for all ages.
  • Can be used to enhance the health and well-being of pets.

Cons:

  • Exodus Effect is exclusively available on the official website.

Frequently Asked Questions

Who should use The Exodus Efect?

The Exodus Effect is for adults who want to improve their physical, mental, and spiritual health with natural and bible-based components.

Where Can You Find the Exodus Effect Book?

The Exodus Effect guide can only be obtained on the official website.

Who is The Creator of The Exodus Effect CBD Oil Guide?

Dr. Benet and Pastor Andrew, who worked with Divine Origins LLC, have compiled this guide to anointing oil based on the Bible.

Last Words

The Exodus Effect is a Bible-based guideline that contains components that help promote physical, spiritual, and emotional health. The Exodus Effect’s anointing oil can help to clear up unhealthy inflammations, relieve pain, boost immunity, and improve general well-being.

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Acxion Pills Reviews: Is it Safe-Dosage and Side Effect

Acxion pills are a prescription medication most commonly used in the United States and Mexico. According to the manufacturer, Acxion fentermina facilitates weight loss. This article comprehensively analyzes Acxion pills, including what they are, how they function, potential side effects, and whether or not they are safe for everyone.

Related: Best Nitric Oxide Supplements

What is Acxion?

The Acxion pill is the most commonly used prescription in the United States and Mexico. According to the manufacturer, Acxion fentermina facilitates weight loss. It employs a salt called Phentermine (acxion fentermina), a ubiquitous formula sold under various brand names in multiple countries. This prescription medication is marketed as a “magic pill” that will work miracles on anyone and burn off all fat in days.

Acxion Pills and Side Effects Risk

Using these pills to lose weight carries a risk, as numerous users have reported experiencing adverse effects. After a few days, most people cease taking the pills and use an alternative. On the other hand, a few individuals have reported Acxion’s effectiveness.

Acxion Ingredients

Phentermine is the primary active ingredient in these tablets. Phentermine’s precise scientific name is “phentermine hydrochloride.” Acxion pills contain a single active constituent that performs all the necessary functions. Acxion tablets are also available in various formulations. These include the 6.4mg tablets, the 15mg tablets, and the 30mg of Acxion fentermina.

Related: Relief Factor Reviews: Does It Work and Is It Safe?

How Does Phentermine work inside Acxion diet pills?

Phentermine acts like amphetamines in some way. Phentermine is a chemical that makes the brain work faster and produces more brain chemicals. This way, the nervous system works better, helps lower hunger and appetite, and makes people feel full. Acxion makes the hypothalamus gland work harder and produce more brain chemicals. This way, their senses tell the brain that they are not hungry anymore and don’t want to eat more food. That’s why diet pills like Acxion depend on making a person’s appetite less, and they are only for fat or overweight people who have tried other ways to lose weight that didn’t work for them, like food or exercise.

Related: Golden Revive Plus Reviews

Side Effects of Acxion

  • Phentermine, the active constituent in Acxion, can be addictive if taken for an extended period of time.
  • It can cause high blood pressure.
  • It can cause an overall negative disposition and low vitality.
  • It can make you lazy.
  • You may begin to notice marks on your body, such as on your foot, limb, or other joints.
  • It may also cause stomach issues such as diarrhea, nausea, or abdominal discomfort.
  • It can also cause respiratory issues like shortness of breath.
  • Feeling stressed for no reason.

Pros and Cons of Acxion

Pros:

  • The Acxion weight loss drugs are available in tablet, capsule, and extended-release tablet forms.
  • The prescribed doses of this form of phentermine are 15mg (taken once or twice a day) and 30mg (taken once a day).

Cons:

  • People from outside Mexico cannot get Acxion because it is only sold in Mexico.
  • Acxion, like other phentermine weight reduction pill products, can have a variety of negative side effects.
  • Some online pharmacies may sell Acxion diet tablets without a prescription, in violation of the law.

Who Shouldn’t Take Acxion?

  • People with a history of cardiovascular disease, hypertension, hyperthyroidism, or glaucoma
  • Pregnant or lactating women
  • People with a history of allergic reactions to phentermine or other diet drugs, amphetamines, stimulants, or cold medications.
  • Those with a history of drug abuse
  • Pregnant or breastfeeding women.
  • People over 60 may have more side effects from this medication.
  • Anyone with a history of mental illness, such as depression, anxiety, or bipolar disorder, shouldn’t use Acxion because it can make these disorders worse.

Related: MCT Wellness Reviews

Top 2 Acxion Pill Alternatives

  1. PhenQ
  2. Phen24

Acxion Pills Reviews: Final Words

In conclusion, anyone looking for a natural, side-effect-free method of weight loss shouldn’t use Acxion weight loss tablets. Yes, it may occasionally be effective, but the numerous risks its constituents pose to the user’s health cannot be ignored. Its negative adverse effects effectively nullify all of its weight loss advantages.