Miracle-dz/UniFAR-FTUs huggingface dataset:
Groups of galaxies in the Center for Astrophysics redshift survey

By applying the Huchra and Geller (1982) objective group identification algorithm to the Center for Astrophysics' redshift survey, a catalog of 128 groups with three or more members is extracted, and 92 of these are used as a statistical sample. A comparison of the distribution of group centers with the distribution of all galaxies in the survey indicates qualitatively that groups trace the large-scale structure of the region. The physical properties of groups may be related to the details of large-scale structure, and it is concluded that differences among group catalogs may be due to the properties of large-scale structures and their location relative to the survey limits. 28 refs.
Hysteresis and coupling losses of superconducting cables at additional change of the applied magnetic field

The hysteresis losses and the coupling losses are calculated for superconducting strands and cables during some additional change of the applied magnetic field. The calculations are always carried out by two methods, leading, as expected, to identical results. Different situations (initial field below and above the penetration field; field increase and field decrease) were considered on calculating the hysteresis losses. A very useful simple formula was obtained for the coupling losses, including only the square of the field amplitude and the ratio of the time constant of the structure and of the applied field. The largest contributions to the AC losses are obtained for the field increase above the penetration field (for the hysteresis losses) and for the short time constant of the field change, compared to the time constant of the strands, subcables, or cables (for the coupling losses).
Quantum Fluctuations in the Stokes Parameters of Light Propagating in a Kerr Medium

Abstract The quantum theory of light propagation in a nonlinear Kerr medium is applied to calculate the Stokes parameters and their variances in the process of light propagation. Exact quantum formulae are derived for the expectation values of the Stokes operators and thus for the azimuth θ and ellipticity η of the beam. The role of quantum fluctuations in light polarization characteristics is discussed. The periodic behaviour of quantum evolution of the light polarization is revealed explicitly. It is shown that the degree of polarization is diminished at early stages of each period of the evolution but then reverts to its initial state of complete polarization at the end of the period. The variances of the Stokes parameters are also periodic and intensity-dependent; however, they never fall below their coherent state values.
Alpha and neutron induced reactions on ruthenium isotopes

The uncertain origin of the proton rich Mo and Ru isotopes has motivated cross-section measurements of alpha- and neutron-induced reactions. The experiments were performed via the activation technique by irradiating thin layers of natural ruthenium with alpha-particle beams close to the Gamov window of the p process between 7.0 and 10.5 MeV. The cross sections of the reactions Ru-96(alpha,gamma), Ru-96(alpha,n), Ru-96(alpha,p), and Ru-98(alpha,n) could be determined with uncertainties of typically 10 about two to three times smaller than recent statistical model predictions. Additional activations in a quasistellar neutron spectrum corresponding to kT=25 keV allowed us to obtain the complementary stellar (n,gamma) cross sections for Ru-96, Ru-102, and Ru-104. In these cases the agreement with model calculations is considerably better.
Breakdown of similarity between momentum and energy transfer in a stagnation-region with free-stream turbulence

A direct numerical simulation of turbulent stagnation-region heat transfer with free-stream turbulence is performed. The temperature field in the 'damping' regime is mildly disturbed and that in the 'attached amplifying' regime is organised. In the 'detached amplifying' regime, the temperature field becomes turbulent. The temperature field is stretched in the x direction near the wall. The surface contours reveal that the temperature field is influenced significantly by streamwise vorticity. The enhancement of wall heat transfer by free-stream turbulence is similar to that in the previous results of the organised inflow disturbances. This indicates that the effect of large-scale eddies on the enhancement of wall heat transfer is important in the turbulent stagnation-region heat transfer. The breakdown of similarity between momentum and energy transfers in the stagnation-region with free-stream turbulence is analysed. The wall blocking and the pressure fluctuations are found to be responsible for the dissimilarity.
Strategi Komunikasi Kesehatan Pencegahan Lonjakan Kasus COVID-19 dalam Youtube Kemenkes RI

Pemberitaan media ramai mempublikasikan info terbaru pandemi COVID-19, Kemenkes RI selaku departemen yang bergerak di bidang kesehatan, memberikan informasi terbaru melalui channel youtube-nya dalam salah satu video bertajuk “Keterangan Pers: Update Penanganan COVID-19 di Indonesia” pada 2 Agustus 2021. Penelitian ini bertujuan menemukan strategi penanganan lonjakan kasus gelombang kedua COVID-19 yang disampaikan Kemenkes RI melalui konferensi pers dalam akun youtube-nya. Penelitian ini menggunakan metode analisis etnografi virtual, dengan teknik pengumpulan data melalui studi literatur dan observasi online. Hasil penelitian menunjukkan adanya beragam komunikasi literasi kesehatan yang tergambar dari percakapan netizen yang mengikuti video “Keterangan Pers: Update Penanganan COVID-19 di Indonesia”. Antusiasme netizen yang menyimak video tersebut mencapai 4754 viewers, terdiri dari tenaga kesehatan, wartawan dari berbagai media, perwakilan kota atau kabupaten, serta masyarakat luas. Intisari video tersebut menggambarkan perkembangan strategi komunikasi kesehatan yang dilakukan Kemenkes RI dalam menghadapi lonjakan kasus berupa deteksi, terapeutik, dan vaksinasi. Budaya percakapan yang terbentuk adalah adanya komentar dan kritik yang cukup kontroversial terkait dengan upaya penanganan COVID-19 di Indonesia yang dilakukan Kemenkes RI masih belum menunjukkan hasil yang memuaskan. Kontribusi penelitian ini memberi rekomendasi kebijakan kepada Kemenkes RI mengenai strategi penanganan komunikasi kesehatan melalui media Youtube.
Elasto-Plastic Fatigue Life Improvement of Bolted Joints and Introducing FBI Method

Abstract The failures of bolted joints, which are the basic and popular fasteners in industry, are mostly due to fatigue. This paper presents an effective method to improve the elasto-plastic fatigue life of a bolt. A complete bolted joint is considered and modeled with the finite element approach to calculate stress and strain. The code based on crack initiation theory is developed to calculate the fatigue life of the bolted joint. Local plasticity and mean stress correction are both applied in this analysis. Among the many factors that influence failure and fatigue behavior in bolt-nut fasteners, geometry has the most important effect on fatigue life. The geometry of a bolt is classified to four decisive parameters: Thread Flank Type, Thread Root Radius, Thread Run-out, and Head Fillet Radius. However, sensitivity studies are performed to investigate the effect of each of the four geometrical parameters on fatigue life. Finally, a new bolt design configuration is proposed and the results are compared with the conventional bolt. This new design is named FBI which stands for “Fatigue-Bolt-Improvement” method. This modification in design and fabrication of bolts will greatly reduce the stress concentration at the critical area, and will increase the fatigue strength of the bolt as compared to the classic standard bolt.
Pharmacist’s Knowledge of High-risk/Alert Medications in Saudi Arabia

Objectives: To explore pharmacist’s knowledge of High-risk/Alert medications in Saudi Arabia. Methods: It analyzes a cross-sectional survey discussing pharmacist knowledge of High-risk/Alert medications in Saudi Arabia. The survey consisted of respondents’ demographic information about pharmacists, the High-risk/Alert medications assessment of basic knowledge, and The Resources used about the High risk or high-alert medications. The 5-point Likert response scale system was used with closed-ended
Does Property Return Affect Seller Behavior? An Empirical Study of China’s Real Estate Market

This paper examines the relationship between property return and seller behavior and aims to test the disposition effect in China’s real estate market. Using transaction data in Beijing, we find that loss properties have a lower sell propensity relative to gain properties, confirming the existence of the disposition effect. We also find that the disposition effect is more pronounced in samples with shorter holding periods. Sellers with financial constraints and popular projects are more likely to show the disposition effect. Furthermore, we find that sellers exhibit loss aversion; specifically, sellers with loss properties are likely to set a higher listing price, which provides indirect evidence for the disposition effect.
Numerical Simulation of Chaotic Mixing in Lid Driven Cavity: Effect of Passive Plug

Abstract Chaotic mixing is generated in a lid driven cavity through a temporal forcing of the lid, which exploits repeated stretching and folding. The fluid flow features are simulated by solving mass and momentum conservation equations along with particle tracking, over a range of frequencies and amplitudes. By locating a passive circular plug inside the cavity, chaotic mixing is found to be dramatically altered. The mixing efficiency is assessed for the Reynolds number range of 50 to 5000. A new measure for the quantification of mixing efficiency called σ measure is introduced. Numerical particle tracking is performed by placing passive massless and inertialess particles along the vertical centerline of the cavity. The two parameters which influence mixing efficiency, viz. frequency and amplitude of the lid are varied. The advantage of the proposed σ measure is brought out vis-á-vis the existing techniques, such as stretching rate (SR) and mixing in weak sense (βws).
A simple model of the hurricane boundary layer revisited

A simple slab model for the boundary layer of a hurricane is re‐examined and a small error in the original calculation is corrected. With this correction, the development of supergradient winds is a ubiquitous feature of the solutions. The boundary layer shows two types of behaviour in the inner core of the vortex depending on the depth of the layer and the maximum tangential wind speed above the layer. For small depths and/or large tangential wind speeds, large supergradient winds develop and lead to a rapid deceleration of the inflow such that the inflow becomes zero at some radius inside the radius of maximum tangential wind speed above the boundary layer. For large depths and/or small tangential wind speeds, the solutions do not become singular until within a few kilometres of the rotation axis. The transition between the two regimes is very abrupt. Interpretations are given for the foregoing behaviour. Other aspects of the boundary‐layer dynamics and thermodynamics are investigated including: the dependence on mixing by shallow convection; the effects of a radially varying boundary‐layer depth; the effects of downward momentum transport; the dependence of thermodynamical quantities on the boundary‐layer depth; and the radial variation of equivalent potential temperature. Predicted values of the last quantity are in acceptable agreement with observations made in category‐five hurricane Isabel (2003). The version with radially varying depth gives more realistic vertical velocities in the inner‐core region of the vortex. The limitations and strengths of the slab model are discussed. Copyright © 2008 Royal Meteorological Society
Biometabolites of Citrus unshiu Peel Enhance Intestinal Permeability and Alter Gut Commensal Bacteria

Flavanones in Citrus unshiu peel (CUP) have been used as therapeutic agents to reduce intestinal inflammation; however, the anti-inflammatory effects of their biometabolites remain ambiguous. Here, we identified aglycone-type flavanones, such as hesperetin and naringenin, which were more abundant in the bioconversion of the CUP than in the ethanol extracts of the CUP. We found that the bioconversion of the CUP induced the canonical nuclear factor-κB pathway via degradation of IκB in Caco-2 cells. To check the immune suppressive capacity of the aglycones of the CUP in vivo, we orally administered the bioconversion of the CUP (500 mg/kg) to mice for two weeks prior to the 3% dextran sulfate sodium treatment. The CUP-pretreated group showed improved body weight loss, colon length shortage, and intestinal inflammation than the control mice. We also found a significant decrease in the population of lamina propria Th17 cells in the CUP-pretreated group following dextran sodium sulfate (DSS) treatment and an increase in mRNA levels of occludin in CUP-treated Caco-2 cells. Pyrosequencing analysis revealed a decreased abundance of Alistipes putredinis and an increased abundance of Muribaculum intestinale in the feces of the CUP-pretreated mice compared to those of the control mice. Overall, these findings suggest that the pre-administration of CUP biometabolites may inhibit the development of murine colitis by modulating intestinal permeability and the gut microbiome.
In Vitro Studies Demonstrate Antitumor Activity of Vanadium Ions from a CaO-P2O5-CaF2:V2O5 Glass System in Human Cancer Cell Lines A375, A2780, and Caco-2

In this research, we investigated the structural and biological properties of phosphate glasses (PGs) after the addition of V2O5. A xV2O5∙(100 − x)[CaF2∙3P2O5∙CaO] glass system with 0 ≤ x ≤ 16 mol% was synthesized via a conventional melt-quenching technique. Several analysis techniques (dissolution tests, pH, SEM-EDS, FT-IR, and EPR) were used to obtain new experimental data regarding the structural behavior of the system. In vitro tests were conducted to assess the antitumor character of V2O5-doped glass (x = 16 mol%) compared to the matrix (x = 0 mol%) and control (CTRL-) using several tumoral cell lines (A375, A2780, and Caco-2). The characterization of PGs showed an overall dissolution rate of over 90% for all vitreous samples (M and V1–V7) and the high reactivity of this system. EPR revealed a well-resolved hyperfine structure (hfs) typical of vanadyl ions in a C4v symmetry. FT-IR spectra showed the presence of all structural units expected for P2O5, as well as very clear depolymerization of the vitreous network induced by V2O5. The MTT assay indicated that the viability of tumor cells treated with V7-glass extract was reduced to 50% when the highest concentration was used (10 µg/mL) compared to the matrix treatment (which showed no cytotoxic effect at any concentration). Moreover, the matrix treatment (without V2O5) provided an optimal environment for tumor cell attachment and proliferation. In conclusion, the two types of treatment investigated herein were proven to be very different from a statistical point of view (p < 0.01), and the in vitro studies clearly underline the cytotoxic potential of vanadium ions from phosphate glass (V7) as an antitumor agent.
Electric Fields and Charges near 0°C in Stratiform Clouds

Abstract Earlier studies of mesoscale convective system stratiform regions have shown that large electric fields and charge densities are found near the 0°C level. Here 12 soundings of the electric field were analyzed through the 0°C level in various types of electrified stratiform clouds. For each electric field sounding, the thermodynamic sounding and supporting radar data were also studied. For comparison, five soundings not from stratiform clouds were included. Charge densities were found at or near 0°C in the stratiform clouds of at least 1 nC m−3 in eight of the soundings, and four of those had charge densities of at least 2 nC m−3. Of the stratiform soundings, 11 had an electric field magnitude of greater than 50 kV m−1 near 0°C, and 7 of those had an electric field magnitude of at least 75 kV m−1. The evidence suggests that melting may be the primary cause of the charge density found at and below 0°C in electrified stratiform clouds. In all 12 of the stratiform soundings, positive charge density w.
Foliar applications to vines of methyl jasmonate and nanoparticles doped with methyl jasmonate: impact on grape and wine polysaccharide composition

Polysaccharides in wine play important roles in the stabilization and in the sensory properties of wines. Elicitor application constitutes an interesting field of research since it is indirectly involved in the accumulation in grape cell walls of molecules like callose, lignin, phenolic compounds and glycoproteins. Currently, biomimetic calcium phosphate (ACP) nanoparticles are successfully used in viticulture for the controlled delivery of bioactive molecules, such as elicitors. The aim of this study was to compare the effect of the application of two different elicitors on both grape and wine of Tempranillo polysaccharide composition. Methyl jasmonate (MeJ) and nanoparticles doped with MeJ were applied to the canopy at veraison and one week later in two vintages. In the grape extracts, the foliar treatments did not increase the content of monosaccharides or that of the main pectin families; therefore, the elicitors did not reinforce the cell walls of the Tempranillo grape. The extractability and solubility of the pectic families of the grape cell walls into the wine depended on the type of family and the climate of the vintages.
Anomalous Marginal Insertion of Umbilical Cord in Placentas of COVID-19-Affected Pregnant Mothers: A Cross-Sectional Study

Aim Study the effect of coronavirus disease-19 (COVID-19), caused by the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), on the placenta and in turn study its effects on pregnancy and newborn outcomes. Methods In this cross-sectional study, which was conducted in the term pregnant women who underwent delivery, their placentas were collected after delivery along with the mothers’ blood and cord blood. Results Among the 212 pregnant women recruited, the prevalence of marginal cord insertion (MCI) in the placentas after delivery, was found to be 23% (n=48). Among these 48 cases (n=48) with MCI, 58.33% (n=28) were COVID-19 positive. The placentas with MCI had significantly lower minimum placental circumference (probability value/p value=0.04) and significantly longer umbilical cord (p-value=0.05). COVID-19 antibodies transfer from the mother to the umbilical cord (C/M antibodies ratio) was observed to be lower, albeit insignificantly. Both the weight of newborns (p value=0.03) and their COVID-19 antibodies levels (p-value=0.05) were observed to be significantly lower in the MCI group. Univariate analysis shows that a body mass index (BMI) ≥ 23 of the mothers was significantly associated with abnormal MCI. Conclusion The prevalence of MCI was observed to be high in COVID-19-affected mothers in our study. MCI was associated with lower placental size, newborn weight, lesser transfer of COVID-19 antibodies from the mother to the fetus across the umbilical cord, and lower antibody levels in the cord blood when compared to maternal blood.
Proteomic Analysis of Dupuytren’s Contracture-Derived Sweat Glands Revealed the Synthesis of Connective Tissue Growth Factor and Initiation of Epithelial-Mesenchymal Transition as Major Pathogenetic Events

Dupuytren’s contracture (DC) is a chronic and progressive fibroproliferative disorder restricted to the palmar fascia of the hands. Previously, we discovered the presence of high levels of connective tissue growth factor in sweat glands in the vicinity of DC nodules and hypothesized that sweat glands have an important role in the formation of DC lesions. Here, we shed light on the role of sweat glands in the DC pathogenesis by proteomic analysis and immunofluorescence microscopy. We demonstrated that a fraction of sweat gland epithelium underwent epithelial-mesenchymal transition illustrated by negative regulation of E-cadherin. We hypothesized that the increase in connective tissue growth factor expression in DC sweat glands has both autocrine and paracrine effects in sustaining the DC formation and inducing pathological changes in DC-associated sweat glands.
The Dollar’s Imperial Circle

In this paper we highlight a new channel through which dollar fluctuations can become a self-fulfilling pro-cyclical force. We call this mechanism “Imperial Circle” as it makes the dollar the dominant macroeconomic variable in the context of the current international monetary system. At the core of it, there is a fundamental asymmetry between the shrinking exposure of the “real” U.S. economy to global developments versus the growing global role of the U
Strength and Bioelectrical Activity of the Pelvic Floor Muscles and Sexual Function in Women with and without Stress Urinary Incontinence: An Observational Cross-Sectional Study

Stress urinary incontinence (SUI) results from an increase in intravesical pressure, which exceeds the pressure at which the urethra remains closed. Symptoms cause social and sexual intercourse discomfort directly or indirectly, which affect health-related quality of life and are associated with pelvic floor muscle (PFM) dysfunction. We aimed to verify the variation in strength and PFM bioelectrical activity and sexual function in women with SUI. Additionally, we analyzed the impact of this dysfunction on quality of life. This was an observational cross-sectional study. Women aged 25–55 years with frequent sexual intercourse were included. Women with SUI were included in a study group (G2, n = 17), and those without any type of incontinence were included in a control group (G1, n = 16). Primary outcomes were level of strength and PFM bioelectrical activity and sexual function as determinants of worse SUI in the control group. Secondary outcomes were associated between the primary outcomes and severity of urinary loss, impact on daily life, and quality of life in women with SUI. In the domains evaluated in the Female Sexual Function Index (FSFI), only sexual desire was lower in women with SUI (G2) than in the controls (p = 0.033). During analysis of G1 variables, a positive and moderate correlation was observed between power/myoeletric activation and maximum voluntary contraction (MVC) (p < 0.01), peak (p < 0.01), and mean amplitudes (p = 0.017). There was a high positive correlation between sexual arousal and other variables, including vaginal lubrication, sexual orgasm, and total FSFI value (p < 0.001 for all analyses). During evaluation of G2 variables, the MVC was positively correlated with the peak and mean amplitudes (p < 0.0001). Additionally, there was a high and positive correlation between the mean amplitudes (%MVC) and personal relationships (KHQ) (p = 0.001); the same was observed between the total (ICIQ) and activities of daily living (ICIQ) (p < 0.0001). Therefore, women with SUI presented with lower sexual desire and bioelectric activity but were not related to PFM strength. Additionally, the domains of sexual function and certain variables of quality of life are aggravated by SUI.