cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Peaks within peaks and the possible two-peak structure of the Pc(4457): the effective field theory perspective
Creators: name: Peng, Fang-Zheng
name: Lu, Jun-Xu
name: Sánchez, Mario Sánchez
name: Yan, Mao-Jun
name: Valderrama, Manuel Pavon
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The LHCb pentaquarks -- the $P_c(4312)$, $P_c(4440)$ and $P_c(4457)$ -- have been theorized to be $Σ_c \bar{D}$ and $Σ_c \bar{D}^*$ S-wave molecules. Here we explore the possibility that two of these pentaquarks -- the $P_c(4440)$ and $P_c(4457)$ -- contain in addition a $Λ_c(2595) \bar{D}$ component in P-wave. We will analyze the effects of this extra channel within two effective field theories: the first one will be a standard contact-range effective field theory and the second one will include the non-diagonal pion dynamics connecting the $Σ_c \bar{D}^*$ and $Λ_c(2595) \bar{D}$ channels, which happens to be unusually long-ranged. The impact of the coupled-channel dynamics between the $Σ_c \bar{D}^*$ and $Λ_c(2595) \bar{D}$ components is modest at best for the $P_c(4440)$ and $P_c(4457)$, which will remain to be predominantly $Σ_c \bar{D}^*$ molecules. However, if the quantum numbers of the $P_c(4457)$ are $J^P = \frac{1}{2}^-$, the coupled-channel dynamics is likely to induce the binding of a $Λ_c(2595) \bar{D}$ S-wave molecule (coupled to $Σ_c \bar{D}^*$ in P-wave) with $J^P = \frac{1}{2}^+$ and a mass similar to the $P_c(4457)$. If this is the case, the $P_c(4457)$ could actually be a double peak containing two different pentaquark states.
description: 17 pages, 3 figures
title: Geschlechterverhältnisse und Klima im Wandel. Erste Schritte in Richtung einer transformativen Klimapolitik
Creators: name: Röhr, Ulrike
name: Alber, Gotelind
Publisher: name: Humboldt-Universität zu Berlin
Year: 2018
Subjects: subject: Carbon Footprint
subject: Gender
subject: Klimaanpassung
subject: Klimaschutz
subject: Transformation
subject: Transformatorische Ansätze
subject: UNFCCC
subject: ddc:320

description: Die Genderperspektive auf Klimawandel und Klimaschutz hat seit einigen Jahren deutlich an Aufmerksamkeit gewonnen. Der Beitrag geht der Frage nach, welche Erkenntnisse zu den Wirkungen des Klimawandels und der Klimapolitik auf die Geschlechterverhältnisse aus Industrieländern vorliegen. Die Ergebnisse eines umfassenden Literaturreviews zeigen, dass die Anzahl der Publikationen zu Gender und Klima in den letzten Jahren deutlich zugenommen hat, dies aber nicht auf alle Handlungsfelder der Klimapolitik zutrifft. Das Hauptaugenmerk liegt auf den Handlungsfeldern des Klimaschutzes, während die Anpassung an den Klimawandel aus der Geschlechterperspektive für Industrieländer eher unterbelichtet ist. Auch scheint es, dass sich der Fokus der wissenschaftlichen Diskurse in den letzten zehn Jahren deutlich verengt und auf die Mikroebene verlagert hat, Strukturen und Dynamiken dagegen seltener untersucht werden. Die Treiber von Ungleichheit und damit die Hintergründe der geschlechterspezifischen Ursachen und Auswirkungen des Klimawandels wie auch der tendenziell androzentrischen Sichtweise auf den Klimawandel und auf die Entwicklung von Lösungsansätzen stehen eher selten im Mittelpunkt.
Non-local divergence-free currents for the account of symmetries in two-dimensional wave scattering
Creators: name: Metaxas, Marios
name: Schmelcher, Peter
name: Diakonos, Fotis
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We explore wave-mechanical scattering in two spatial dimensions assuming that the corresponding potential is invariant under linear symmetry transforms such as rotations, reflections and coordinate exchange. Usually the asymptotic scattering conditions do not respect the symmetries of the potential and there is no systematic way to predetermine their imprint on the scattered wave field. Here we show that symmetry induced, non-local, divergence-free currents can be a useful tool for the description of the consequences of symmetries on higher dimensional wave scattering, focusing on the two-dimensional case. The condition of a vanishing divergence of these non-local currents, being in one-to-one correspondence with the presence of a symmetry in the scattering potential, provides a systematic pathway to to take account if the symmetries in the scattering solution. It leads to a description of the scattering process which is valid in the entire space including the near field regime. Furthermore, we argue that the usual asymptotic representation of the scattering wave function does not account for insufficient account for a proper description of the underlying potential symmetries. Within our approach we derive symmetry induced conditions for the coefficients in the wave field expansion with respect to the angular momentum basis in two dimensions, which determine the transition probabilities between different angular momentum states.
description: 20 pages, 3 figures
Scaling of non-Markovian Monte Carlo wave-function methods
Creators: name: Piilo, J.
name: Maniscalco, S.
name: Messina, A.
name: Petruccione, F.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We demonstrate a scaling method for non-Markovian Monte Carlo wave-function simulations used to study open quantum systems weakly coupled to their environments. We derive a scaling equation, from which the result for the expectation values of arbitrary operators of interest can be calculated, all the quantities in the equation being easily obtainable from the scaled Monte Carlo simulations. In the optimal case, the scaling method can be used, within the weak coupling approximation, to reduce the size of the generated Monte Carlo ensemble by several orders of magnitude. Thus, the developed method allows faster simulations and makes it possible to solve the dynamics of the certain class of non-Markovian systems whose simulation would be otherwise too tedious because of the requirement for large computational resources.
description: 10 pages, 3 figures. V2: Minor changes according to the referees' suggestions
title: Digitalisierung (mit)gestalten – was wir vom Cyberfeminismus lernen können. Strategien und Ansätze einer aktivierenden Perspektive auf Informations- und Kommunikationstechnologien im 21. Jahrhundert
Creators: name: Stoltenhoff, Ann-Kathrin
name: Raudonat, Kerstin
Publisher: name: Humboldt-Universität zu Berlin
Year: 2018
Subjects: subject: Cyberfeminismus
subject: Digitalisierung
subject: Internet
subject: IT
subject: Medien
subject: Partizipation
subject: Selbstempowerment
subject: ddc:303

description: Dieser Beitrag erörtert, ob die machtkritischen feministischen Ansätze und Strategien des Cyberfeminismus für aktuelle, von Digitalisierung und Heterogenität geprägte Debatten im Bildungsbereich fruchtbar gemacht werden können. Cyberfeminismus wird zunächst als historische Bewegung verortet, die in ihrer Mannigfaltigkeit in die Kontexte poststrukturalistischer und künstlerischer Auseinandersetzungen mit Körper und Geschlecht gestellt wird. Theorien und Perspektiven des Cyberfeminismus werden anhand zentraler Texte vorgestellt und durch Beispiele unterfüttert. Ausgehend von aktuellen Projekten, die die technisch-medialen Fähigkeiten von Frauen im Sinne der Selbstermächtigung stärken wollen, wird eine Brücke geschlagen zu institutionellen Angeboten der MINT-Frauenförderung, die die Berufschancen von Frauen verbessern sollen. Schließlich wird der dekonstruktivistische Charakter des Cyberfeminismus betont und dazu angeregt, Digitalisierung als heterogenes gesellschaftliches Feld zu fassen, das offen für neue Praktiken und Diskursformationen ist.
A potential analogue of Schinzel's hypothesis for polynomials with coefficients in Fq[t]
Creators: name: Bender, Andreas O.
name: Wittenberg, Olivier
Publisher: name: arXiv
Year: 2004
Subjects: subject: Number Theory (math.NT)
subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics
subject: 11T55, 14H30

description: The Schinzel hypothesis essentially claims that finitely many irreducible polynomials in one variable over Z simultaneously assume infinitely many prime values unless there is an obvious reason why this is impossible. We prove that under a restriction on the characteristic of the finite field Fq and a smoothness assumption, finitely many irreducible polynomials in one variable over the ring Fq[t] assume simultaneous prime values after a sufficiently large extension of the field of constants.
description: 9 pages; minor improvements
Why Nursing Is More Than Just a Profession.pdf
Creators: name: ogey, tej
Publisher: name: figshare
Year: 2025
Subjects: classificationCode: 390303
subject: Higher education

description: Cybersecurity in nursing has become increasingly important as healthcare data moves to digital platforms. Protecting patient information from cyber threats, data breaches, and unauthorized access is critical to maintaining nurs fpx 6200 assessment 3 confidentiality and trust. Nurses are trained in data security best practices, such as using strong passwords, encrypting sensitive information, and following institutional policies on digital privacy. Awareness of cybersecurity measures ensures that technology remains a secure and reliable asset in nursing practice.
A pesquisa científica e a sociedade: conexões
Creators: name: Casimiro, Adelaide
name: Moreira, Luciana
Publisher: name: figshare
Year: 2020
Subjects: subject: 80706 Librarianship
subject: FOS: Media and communications
subject: Library and Information Studies
subject: 80799 Library and Information Studies not elsewhere classified

description: Palestra intitulada "A pesquisa científica e a sociedade: conexões", proferida pela professora Drª Luciana Moreira e mediada pela professora Msª Adelaide Helena Casimiro. Esta palestra faz parte do evento II Troca de Saberes na Ciência da Informação e foi proferida em 23/06/2020 no canal BiblioUFRN. Link https://www.youtube.com/watch?v=OjwhHINT71o
Activated decay of a metastable state: Transient times for small and large dissipation
Creators: name: Chushnyakova, Maria
name: Gontchar, Igor
name: Khmyrova, Natalya
Publisher: name: arXiv
Year: 2020
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: The time evolution of the thermally activated decay rates is considered. This evolution is of particular importance for the recent nanoscale experiments discussed in the literature, where the potential barrier is relatively low (or the temperature is relatively high). The single-molecule pulling is one example of such experiments. The decay process is modeled in the present work through computer solving the stochastic (Langevin) equations. Altogether about a hundred of high precision rates have been obtained and analyzed. The rates are registered at the absorption point located far beyond the barrier to exclude the influence of the backscattering on the value of the quasistationary decay rate. The transient time, i.e. the time lapse during which the rate attains half of its quasistationary value, has been extracted. The dependence of the transient times upon a damping parameter is compared with that of the inverse quasistationary decay rate. Two analytical formulas approximating the time-dependences of the numerical rates are proposed and analyzed.
description: Submitted to Indian Journal of Physics
Glassy dynamics and nonextensive effects in the HMF model: the importance of initial conditions
Creators: name: Pluchino, Alessandro
name: Rapisarda, Andrea
Publisher: name: arXiv
Year: 2005
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We review the anomalies of the HMF model and discuss the robusteness of the glassy features vs the initial conditions. Connections to Tsallis statistics are also addressed.
description: 11 pages, 5 figures. Talk presented at the International conference Complexity and Nonextensivity: New Trends in Statistical Mechanics. - Yukawa Institute for Theoretical Physics - (14-18 March 2005) Kyoto, Japan. New calculations on the glassy behaviour of the HMF model are discussed. Typos correctd. Please note that in the published version, the exponent of the power-law fit observed in fig.2 is erroneously reported as -1/6 instead of the correct value -1.6
Molecular mechanisms of cellular activation
Creators: name: Grill, Brock
Publisher: name: University of British Columbia
Year: 2009

description: There is no biochemical evidence for the activation of Rac and Cdc42 in hemopoietic cells, nor is the mechanism of activation of these small GTPases well characterized in hemopoietic cells. We demonstrate here that lnterleukin-3 (IL-3) induced activation of endogenous Rac-1, Rac-2 and Cdc42. Rac-1 was also activated by colony-stimulating factor-1 (CSF-1), Steel locus factor (SLF), granulocyte-macrophage colony-stimulating factor (GM-CSF), lnterleukin-5 (IL- 5), or by cross-linking the B-lymphocyte receptor for antigen (BCR). The molecules found to be upstream activators of Rac-1 in hemopoietic cells were Pl-3K, p21 Ras, and M-Ras. The activation of Rac-1, Rac-2, and Cdc42 by IL-3 and other hemopoietic growth factors is likely to be an important component of their actions in promoting growth, survival and function. While studying the Rac GEF, smgGDS, we serendipitously observed a protein which was up-regulated in activated lymphocytes. We purified, from actively dividing T-lymphocytes this novel, highly conserved cytoplasmic phospho-protein, which we term Caprin-1. We found that expression of endogenous Caprin-1 correlates with the proliferative status of cells, being up-regulated in actively dividing cells and down-regulated in quiescent cells. We identified Caprin-1 and a homologous protein, Caprin-2, as members of a novel protein family characterized by two novel protein domains, termed homology regions—1 and —2 (HR-1, HR-2). We also observed that over-expression of a fusion protein of GFP and Caprin-1 induced a specific, dose-dependent suppression of the proliferation of NIH 3T3 cells, further supporting a role for Caprin-1 in cellular proliferation.
The Effects of Leadership Style into Fisheries Business Sector in Bangladesh
Creators: name: Azim, Shamimul
name: Labiba Tarannum
name: Ataul Karim Patwary
Publisher: name: figshare
Year: 2020
Subjects: subject: 150399 Business and Management not elsewhere classified
subject: FOS: Economics and business

description: leadership style and firm performance
A model of magnetic friction with the infinite-range interaction
Creators: name: Komatsu, Hisato
Publisher: name: arXiv
Year: 2020
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We investigate a model of magnetic friction with the infinite-range interaction by mean field analysis and a numerical simulation, and compare its behavior with that of the short-range model that we considered previously [H.~Komatsu, Phys.\ Rev.\ E.\ \textbf{100}, 052130 (2019)]. This infinite-range model always obeys the Stokes law when the temperature is higher than the critical value, $T_c$, whereas it shows a crossover or transition from the Dieterich--Ruina law to the Stokes law when the temperature is lower than $T_c$. Considering that the short-range model in our previous study shows a crossover or transition irrespective of whether the temperature is above or below the equilibrium transition temperature, the behavior in the high-temperature state is the major difference between these two models.
description: 10 pages, 7 figures; accepted for publication in Phys. Rev. E
An Introduction to Finite Fibonomial Calculus
Creators: name: Krot, Ewa
Publisher: name: arXiv
Year: 2005
Subjects: subject: Combinatorics (math.CO)
subject: Discrete Mathematics (cs.DM)
subject: FOS: Mathematics
subject: FOS: Computer and information sciences
subject: 11Bxx, 11B39

description: This is an indicatory presentation of main definitions and theorems of fibonomial calculus which is a special case of psi-extented rota's finite operator calculus.
description: 16 pages
Pulverization of the flux line lattice, the phase coexistence and the spinodal temperature of the order-disorder transition in a weakly pinned crystal of Yb$_3$Rh$_4$Sn$_{13}$
Creators: name: Sarkar, S
name: Tomy, C V
name: Thakur, A D
name: Balakrishnan, G
name: Paul, D McK
name: Ramakrishnan, S
name: Grover, A K
Publisher: name: arXiv
Year: 2005
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We have studied metastability effects pertaining to the peak effect (PE) in critical current density ($J_c$) via isofield scans in ac susceptibility measurements in a weakly pinned single crystal of Yb$_3$Rh$_4$Sn$_{13}$ ($T_c(0) \approx 7.6 $~K). The order-disorder transition in this specimen proceeds in a multi-step manner. The phase coexistence regime between the onset temperature of the PE and the spinodal temperature (where metastability effects cease) seems to comprise two parts, where ordered and disordered regions dominate the bulk behavior, respectively. The PE line in the vortex phase diagram is argued to terminate at the low field end at a critical point in the elastic (Bragg) glass phase.
description: To appear in Current trends in Vortex State Studies (Pramana-J. Phys.)
Tese_Emílio_Prado_da_Fonseca_Versão Final-2018.pdf
Creators: name: Fonseca, Emilio
Publisher: name: figshare
Year: 2020
Subjects: subject: Health Care
subject: 111706 Epidemiology
subject: FOS: Health sciences

description: The data of Oral Health Condition Survey from São Paulo Population (SBSP-2015) were used to identify factors associated with access to oral health in a representative sample for adolescents, adults and the elderly. In adolescents, the outcome was the time since a last dental visit measured categorically: 1- Less than 1 year, 2- One to two years, 3 - Three years or more, 4- I have never visited the dentist. Then, the outcome was dichotomized into two groups: response 1 plus 2 against response 3 plus 4. Multi-level Poisson Regression (MPR) was used to estimate the prevalence of the last dental visit three years or more compared to those who visited the dentist in the last two years. The independent variables were divided into three levels: contextual at the distal; sociodemographic, mesial; individual, proximal level. In the elderly, hierarchical Multiple Logistic Regression (MLR) analysis was used to predict visits to public dental care services. The prevalence of public service use was 1,981 (37.8%) and 3,253 (62.2%) used the private service / health plan / other type of service.
Eight-vertex model and non-stationary Lame equation
Creators: name: Bazhanov, Vladimir V.
name: Mangazeev, Vladimir V.
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: FOS: Physical sciences

description: We study the ground state eigenvalues of Baxter's Q-operator for the eight-vertex model in a special case when it describes the off-critical deformation of the $Δ=-1/2$ six-vertex model. We show that these eigenvalues satisfy a non-stationary Schrodinger equation with the time-dependent potential given by the Weierstrass elliptic P-function where the modular parameter $τ$ plays the role of (imaginary) time. In the scaling limit the equation transforms into a ``non-stationary Mathieu equation'' for the vacuum eigenvalues of the Q-operators in the finite-volume massive sine-Gordon model at the super-symmetric point, which is closely related to the theory of dilute polymers on a cylinder and the Painleve III equation.
description: 11 pages, LaTeX, minor misprints corrected, references added
Optimizing the spatial spread of a quantum walk
Creators: name: Martín-Vázquez, Gonzalo
name: Rodríguez-Laguna, Javier
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We devise a protocol to build 1D time-dependent quantum walks in 1D maximizing the spatial spread throughout the procedure. We allow only one of the physical parameters of the coin-tossing operator to vary, i.e. the angle $θ$, such that for $θ=0$ we have the $\hatσ_z$, while for $θ=π/4$ we obtain the Hadamard gate. The optimal $θ$ sequences present non-trivial patterns, with mostly $θ\approx 0$ alternated with $θ\approx π/4$ values after increasingly long periods. We provide an analysis of the entanglement properties, quasi-energy spectrum and survival probability, providing a full physical picture.
Poor Sensitivity, Specificity and Diagnostic agreement of Tear Film Osmolarity in Dry Eye Disease with other Diagnostic tests in a cohort of Indian patients.Poor Sensitivity, Specificity and Diagnostic agreement of Tear Film Osmolarity in Dry Eye Disease with other Diagnostic tests in a cohort of Indian patients.
Creators: name: Charuta Puranik
name: Krishnaprasad Balakkagari
Publisher: name: figshare
Year: 2020
Subjects: subject: 111301 Ophthalmology
subject: FOS: Clinical medicine
subject: 111399 Ophthalmology and Optometry not elsewhere classified

description: Purpose: To assess agreement of Tear Film osmolarity (TFO) with other diagnostic tests for dry eyes in Indians Study Design: It is a retrospective chart review of consecutive case records of cases in a period of 4 months with at least one chief complaint that is a part of the OSDI scoring system of dry eye disease or came specifically for dry eye evaluation. Methods: All cases had been subjected to of Schirmer’s test, fluorescein tear film break-up time (FBUT) and non-invasive break-up time (NIBUT) on the Oculus Keratograph, OSDI scoring, and Fluorescein staining, and tear film osmolarity by the electrical impedance-based lab-on-a-chip technology (Tear Lab Osmolarity System). 42 case records in the study period formed a convenience series. 22 case records with data entry of all 6 tests were included in final analysis. Results: Of the 22 patients, 86.3% were of South Asian Ethnicity, 3 belonged to the Somali Cushites residing in India, and 12 were female. Mean age was 42.9years (SD 12.8, range 23 to 73years),68.18% described themselves as Video display unit users. Cohens Kappa showed negative values for all observations including abnormal any 1 criterion indicative of disagreement worse than expected by chance. The Sensitivity and Specificity of TFO to detect DED was 28.00% (+/-18.76 CI) and 50% (+/-20.89) respectively. Youden’s index was negative (-.22) Conclusions: Our results suggest that currently accepted thresholds of TFO do not aid in DED diagnosis in Indians. But verdict on TFO role cannot be made, as environmental factors affect diagnostic thresholds. This is the only paper from the India describing tear film osmolarity in dry eye patients.
Quantum computation and analysis of Wigner and Husimi functions: toward a quantum image treatment
Creators: name: Terraneo, M.
name: Georgeot, B.
name: Shepelyansky, D. L.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Quantum Physics (quant-ph)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Chaotic Dynamics (nlin.CD)
subject: FOS: Physical sciences

description: We study the efficiency of quantum algorithms which aim at obtaining phase space distribution functions of quantum systems. Wigner and Husimi functions are considered. Different quantum algorithms are envisioned to build these functions, and compared with the classical computation. Different procedures to extract more efficiently information from the final wave function of these algorithms are studied, including coarse-grained measurements, amplitude amplification and measure of wavelet-transformed wave function. The algorithms are analyzed and numerically tested on a complex quantum system showing different behavior depending on parameters, namely the kicked rotator. The results for the Wigner function show in particular that the use of the quantum wavelet transform gives a polynomial gain over classical computation. For the Husimi distribution, the gain is much larger than for the Wigner function, and is bigger with the help of amplitude amplification and wavelet transforms. We also apply the same set of techniques to the analysis of real images. The results show that the use of the quantum wavelet transform allows to lower dramatically the number of measurements needed, but at the cost of a large loss of information.
description: Revtex, 13 pages, 16 figures
MESENCHYMAL MARKERS AND NEEDED SCAFFOLDS FOR SUCCESSFUL REGENERATION WITH DENTAL STEM CELLS
Creators: name: Godovanets, O.
name: Sauka, E.
name: Godovanets, O.
Publisher: name: The Scientific Heritage
Year: 2021
Subjects: regenerative medicine
regenerative dentistry
stem cells
dental mesenchymal stem cells
tissue engineering.

description: Objective: To analyze the literature in the direction of scientific-theoretical and clinical aspects of the possibilities of using mesenchymal stem cells obtained from different sources of the maxillofacial area. Research methods: In the course of the research the bibliosemantic method and structural-logical analysis were used. A literature search was done using electronic databases PubMed, MEDLINE, Scopus, Web of Science and EMBASE by keywords «regenerative medicine», «regenerative dentistry», «stem cells», «dental mesenchymal stem cells», «stem cell therapy», «tissue engineering». Conclusions: Based on the analysis of the literature, there is a great interest of scientists in dental stem cells and their use in regenerative practice, not only for dental purposes, but also for the treatment of somatic diseases of various origins. This is due to the non-invasive and simpler method of material collection, compared to human bone marrow or embryonic tissues. Stem cells differ in origin, differential activity and source, and have a significant potential for differentiation in the direction of different cell lines depending on the influence of growth factors and nutrient medium. After obtaining new pure cultures, it is possible to establish their origin by identifying the expression of distinctive markers of stem cells. However, despite the high expectations from the further development of regenerative therapy, scientists need to study deeper the possibilities of using these cells in the clinical trial, to investigate the immunological behavior of stem cells of odontogenic origin in varied environments.
Unexpected Circular Radio Objects at High Galactic Latitude
Creators: name: Norris, Ray P.
name: Intema, Huib T.
name: Kapinska, Anna D.
name: Koribalski, Baerbel S.
name: Lenc, Emil
name: Rudnick, L.
name: Alsaberi, Rami
name: Anderson, Craig
name: Anderson, G. E.
name: Crawford, E.
name: Crocker, Roland
name: English, Jayanne
name: Filipovic, Miroslav D.
name: Hopkins, Andrew M.
name: Hurley-Walker, Natasha
name: Inoue, Susumu
name: Luken, Kieran
name: Macgregor, Peter
name: Manojlovic, Pero
name: Marvil, Josh
name: O'Brien, Andrew N.
name: Raja, Wasim
name: Shobhana, Devika
name: Venturi, Tiziana
name: Collier, Jordan D.
name: Hale, Catherine
name: Hotan, Aidan
name: Moss, Vanessa
name: Whiting, Matthew
Publisher: name: arXiv
Year: 2020
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We have found a class of circular radio objects in the Evolutionary Map of the Universe Pilot Survey, using the Australian Square Kilometre Array Pathfinder telescope. The objects appear in radio images as circular edge-brightened discs, about one arcmin diameter, that are unlike other objects previously reported in the literature. We explore several possible mechanisms that might cause these objects, but none seems to be a compelling explanation.
description: Accepted for publication by PASA
PERSPECTIVES ON THE USE OF FIELD HOGS IN NATURAL AND CLINICAL MEDICINE (REVIEW OF THE LITERATURE)
Creators: name: Bachuk-Ponych, N.
name: Kharabara, O.
Publisher: name: The Scientific Heritage
Year: 2021
Subjects: horsetail
internal diseases
comorbidity
polymorbidity
treatment.

description: In this article is analyzed the literature on the spectrum of therapeutic properties of horsetail and drugs from it in the treatment of diseases of internal organs.It was found that they are attributed bagatogranin metabolitic properties, especially important: diuretic, anti-inflammatory, hemostatic, hepatoprotective, detoxifying. The obtained data indicate the necessity for in-depth study of the mechanism of pharmacological properties of drugs from this plant and their wider use in clinical practice in accordance with the current state of health of the population of Ukraine.
Machine Learning Guided Discovery of Gigantic Magnetocaloric Effect in HoB$_{2}$ Near Hydrogen Liquefaction Temperature
Creators: name: de Castro, Pedro Baptista
name: Terashima, Kensei
name: Yamamoto, Takafumi D
name: Hou, Zhufeng
name: Iwasaki, Suguru
name: Matsumoto, Ryo
name: Adachi, Shintaro
name: Saito, Yoshito
name: Song, Peng
name: Takeya, Hiroyuki
name: Takano, Yoshihiko
Publisher: name: arXiv
Year: 2020
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Machine Learning (cs.LG)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: Magnetic refrigeration exploits the magnetocaloric effect which is the entropy change upon application and removal of magnetic fields in materials, providing an alternate path for refrigeration other than the conventional gas cycles. While intensive research has uncovered a vast number of magnetic materials which exhibits large magnetocaloric effect, these properties for a large number of compounds still remain unknown. To explore new functional materials in this unknown space, machine learning is used as a guide for selecting materials which could exhibit large magnetocaloric effect. By this approach, HoB$_{2}$ is singled out, synthesized and its magnetocaloric properties are evaluated, leading to the experimental discovery of gigantic magnetic entropy change 40.1 J kg$^{-1}$ K$^{-1}$ (0.35 J cm$^{-3}$ K$^{-1}$) for a field change of 5 T in the vicinity of a ferromagnetic second-order phase transition with a Curie temperature of 15 K. This is the highest value reported so far, to our knowledge, near the hydrogen liquefaction temperature thus it is a highly suitable material for hydrogen liquefaction and low temperature magnetic cooling applications.
description: 12 pages including 3 figures and 1 table + 11 pages of supplementary information. Published version available at: https://rdcu.be/b36ep
Small-Scale Structure of O VI Interstellar Gas in the Direction of the Globular Cluster NGC 6752
Creators: name: Lehner, N.
name: Howk, J. C.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: In order to study the small-scale structure of the hot interstellar gas, we obtained Far Ultraviolet Spectroscopic Explorer interstellar O VI interstellar absorption spectra of 4 four post-extreme horizontal branch stars in the globular cluster NGC 6752 [(l,b) = (336.50,-25.63), d = 3.9 kpc, z= -1.7 kpc]. The good quality spectra of these stars allow us to measure both lines of the O VI doublet at 1031.926 Åand 1037.617 Å. The close proximity of these stars permits us to probe the hot interstellar gas over angular scale of only $2\farcm2 - 8\farcm9$, corresponding to spatial scales $\la 2.5-10.1$ pc. On these scales we detect no variations in the O VI column density and velocity distribution. The average column density is log = 14.34 \pm 0.02 (log = 13.98). The measured velocity dispersions of the O VI absorption are also indistinguishable. Including the earlier results of Howk et al., this study suggests that interstellar O VI is smooth on scales $Δθ\la 12\arcmin$, corresponding to a spatial scale of less than 10 pc, and quite patchy at larger scales. Although such small scales are only probed in a few directions, this suggests a characteristic size scale for the regions producing collisionally-ionized O VI in the Galaxy.
description: Accepted for publication in the PASP (to appear in the October 2004 issue)
Manuscript.docx
Creators: name: Charuta Puranik
name: Krishnaprasad Balakkagari
Publisher: name: figshare
Year: 2020
Subjects: subject: 111301 Ophthalmology
subject: FOS: Clinical medicine
subject: 111399 Ophthalmology and Optometry not elsewhere classified

description: Purpose: To assess agreement of Tear Film osmolarity (TFO) with other diagnostic tests for dry eyes in Indians Study Design: It is a retrospective chart review of consecutive case records of cases in a period of 4 months with at least one chief complaint that is a part of the OSDI scoring system of dry eye disease or came specifically for dry eye evaluation. Methods: All cases had been subjected to of Schirmer’s test, fluorescein tear film break-up time (FBUT) and non-invasive break-up time (NIBUT) on the Oculus Keratograph, OSDI scoring, and Fluorescein staining, and tear film osmolarity by the electrical impedance-based lab-on-a-chip technology (Tear Lab Osmolarity System). 42 case records in the study period formed a convenience series. 22 case records with data entry of all 6 tests were included in final analysis. Results: Of the 22 patients, 86.3% were of South Asian Ethnicity, 3 belonged to the Somali Cushites residing in India, and 12 were female. Mean age was 42.9years (SD 12.8, range 23 to 73years),68.18% described themselves as Video display unit users. Cohens Kappa showed negative values for all observations including abnormal any 1 criterion indicative of disagreement worse than expected by chance. The Sensitivity and Specificity of TFO to detect DED was 28.00% (+/-18.76 CI) and 50% (+/-20.89) respectively. Youden’s index was negative (-.22) Conclusions: Our results suggest that currently accepted thresholds of TFO do not aid in DED diagnosis in Indians. But verdict on TFO role cannot be made, as environmental factors affect diagnostic thresholds. This is the only paper from the India describing tear film osmolarity in dry eye patients.
The logic of interactive Turing reduction
Creators: name: Japaridze, Giorgi
Publisher: name: arXiv
Year: 2005
Subjects: subject: Logic in Computer Science (cs.LO)
subject: Artificial Intelligence (cs.AI)
subject: Logic (math.LO)
subject: FOS: Computer and information sciences
subject: FOS: Mathematics
subject: F.1.1; F.1.2

description: The paper gives a soundness and completeness proof for the implicative fragment of intuitionistic calculus with respect to the semantics of computability logic, which understands intuitionistic implication as interactive algorithmic reduction. This concept -- more precisely, the associated concept of reducibility -- is a generalization of Turing reducibility from the traditional, input/output sorts of problems to computational tasks of arbitrary degrees of interactivity. See http://www.cis.upenn.edu/~giorgi/cl.html for a comprehensive online source on computability logic.
Gender Contribution and Constrains to Rural Agriculture and Household Food Security in Kenya: Case of Western Province
Creators: name: Omwoha, J.N.
name: Omwoha, J.N.
Publisher: name: Unknown
Year: 2008
Subjects: subject: Agricultural and Food Policy
subject: Community/Rural/Urban Development
subject: Demand and Price Analysis
subject: Farm Management
subject: Food Consumption/Nutrition/Food Safety
subject: Food Security and Poverty
subject: Institutional and Behavioral Economics
subject: International Relations/Trade
subject: Marketing
subject: FOS: Economics and business
subject: Productivity Analysis
subject: Research and Development/Tech Change/Emerging Technologies
subject: Food security
subject: Gender
subject: Kenya
subject: Women Cooperatives

description: This study examined the contribution of gender with special emphasis on women farmers towards rural agriculture as well as factors constraining access to rural agricultural production and consequently household food security in Western Province of Kenya. Data were collected from a total of 161 women farmers, 32 women groups as well as 254 individual males farmers engaged in small-scale production of various food crops in Western Province in Kenya for a period of 1 year. Data were collected using questionnaires and interviews administered to the sampled individual farmers and women groups. Outputs from individual farm productions were used as a measure of agriculture production. Comparisons were made between exclusively female owned farms, women groups and male farms. Results indicated that farms owned exclusively by women did not differ significantly (P>0.05) in agriculture production from those owned by males. Farms owned by women groups performed much better and had higher unit productions. Further results indicated that women had more obstacles constraining their productivity in rural agriculture. 12 out of the 18 factors studied fitted the logistic regression model as constraints for women in agricultural production compared to only five factors constraining men. This study demonstrated that women could provide many yardsticks to unlocking agricultural production in Kenya, which is currently erroneously left to the domains of men. The study recommends adoption of strategies such as formation of women cooperatives and education to change the customary laws curtailing women roles in economic development.
Science with a small two-band UV-photometry mission I: Mission description and follow-up observations of stellar transients
Creators: name: Werner, N.
name: Řípa, J.
name: Thöne, C.
name: Münz, F.
name: Kurfürst, P.
name: Jelínek, M.
name: Hroch, F.
name: Benáček, J.
name: Topinka, M.
name: Lukes-Gerakopoulos, G.
name: Zajaček, M.
name: Labaj, M.
name: Prišegen, M.
name: Krtička, J.
name: Merc, J.
name: Pál, A.
name: Pejcha, O.
name: Dániel, V.
name: Jon, J.
name: Šošovička, R.
name: Gromeš, J.
name: Václavík, J.
name: Steiger, L.
name: Segiňák, J.
name: Behar, E.
name: Tarem, S.
name: Salh, J.
name: Reich, O.
name: Ben-Ami, S.
name: Barschke, M. F.
name: Berge, D.
name: Tohuvavohu, A.
name: Sivanandam, S.
name: Bulla, M.
name: Popov, S.
name: Chang, Hsiang-Kuang
Publisher: name: Deutsches Elektronen-Synchrotron, DESY, Hamburg
Year: 2023

description: This is the first in a collection of three papers introducing the science with an ultra-violet (UV) space telescope on an approximately 100 kg small satellite with a moderately fast re-pointing capability and a real-time alert communication system that is being studied for a Czech national space mission. The mission, called Quick Ultra-Violet Kilonova surveyor - QUVIK, will provide key follow-up capabilities to increase the discovery potential of gravitational wave observatories and future wide-field multi-wavelength surveys. The primary objective of the mission is the measurement of the UV brightness evolution of kilonovae, resulting from mergers of neutron stars, to distinguish between different explosion scenarios. The mission, which is designed to be complementary to the Ultraviolet Transient Astronomy Satellite - ULTRASAT, will also provide unique follow-up capabilities for other transients both in the near- and far-UV bands. Between the observations of transients, the satellite will target other objects described in this collection of papers, which demonstrates that a small and relatively affordable dedicated UV-space telescope can be transformative for many fields of astrophysics.
Assessing Rural Women Food Producers Capacity to Adopt Modern ICTs – A case Study of the Mfantsiman District of Ghana
Creators: name: Sampong, D.D.
name: Egyir, Irene Susana
name: Yaw, Osei-Asare
name: Sampong, D.D.
name: Egyir, Irene Susana
name: Yaw, Osei-Asare
Publisher: name: Unknown
Year: 2008
Subjects: subject: Agricultural and Food Policy
subject: Community/Rural/Urban Development
subject: Consumer/Household Economics
subject: Environmental Economics and Policy
subject: Farm Management
subject: Food Consumption/Nutrition/Food Safety
subject: Food Security and Poverty
subject: Institutional and Behavioral Economics
subject: Labor and Human Capital
subject: Marketing
subject: FOS: Economics and business
subject: Research and Development/Tech Change/Emerging Technologies
subject: Adoption
subject: Information and communication Technology
subject: Ghana
subject: Women

description: The traditional way of information dissemination has been through people; the modern way is through the electronic media – improved information and communication technologies (ICTs). For effectiveness, modern ICTs should help women to improve on their income generating capacity. Issues of level of resource capacity of women, information needed, and current sources of such information become important. This study sought to investigate the issues above with respect to rural women food producers in the Mfantsiman District of Ghana. Simple descriptive statistics and econometric models were employed in the data analysis of 91 randomly selected respondents. The results of the study showed that: In general, the women food producers were aged, subsistence food crop farmers. They depended on the natural rainfall cycle and had inadequate funds, so they use traditional inputs for production and sell surpluses in the community. The most important agricultural information needed was on inputs, specifically, low cost in-kind or cash credit. Currently, the major information sources are relatives and other farmers in the locality, agricultural extension agents, the radio and television. This suggests that the women food producers have low resource capacity and this could limit the adoption of modern ICTs as a source of and media for information dissemination. Yet, the regression results show that the few (6) mobile phone users have a higher income generating capacity. In order to improve on capacity to use modern ICTs for increased access to other resources, women farmers’ should organize themselves into formidable groups so local institutions can assist easily.
The Economics of Biotechnology (Gmos) and the Need for A Regional Policy: The Case for COMESA Countries
Creators: name: Minde, Isaac J.
name: Kizito, Mazvimavi
name: Minde, Isaac J.
name: Kizito, Mazvimavi
Publisher: name: Unknown
Year: 2008
Subjects: subject: Agricultural and Food Policy
subject: Consumer/Household Economics
subject: Demand and Price Analysis
subject: Environmental Economics and Policy
subject: Food Consumption/Nutrition/Food Safety
subject: Food Security and Poverty
subject: International Relations/Trade
subject: Marketing
subject: FOS: Economics and business
subject: Productivity Analysis
subject: Research and Development/Tech Change/Emerging Technologies
subject: Biosafety
subject: Biotechnology
subject: Africa
subject: Policy

description: Many countries in the world have adopted genetically modified organisms as products that can have great beneficial impact on agriculture, industry and trade. However, to date for the whole of Africa, only South Africa has commercialized genetically modified organisms (GMOs). Realizing the high transactions costs—particularly in trade that may underlie different countries having varying policy stances on biotechnology, COMESA (COMESA—Common Market for Eastern and Southern Africa, is a regional grouping of 20 countries. In the context of this study, Tanzania is also included although it is not a COMESA member. This is because it belongs to the Association for Strengthening Agricultural Research in Eastern and Central Africa (ASARECA) of which nine countries are in COMESA. ASARECA was an active partner in this process together with ACTS—African Centre for Technology Studies and PBS—Program on Biosafety) in collaboration with a number of partners embarked on a process of shaping a regional consensus on biotechnology policy for their 20 countries between 2004 and 2006 and adopted it in principle by the end of May 2006. Based on case studies of six countries—Egypt, Kenya, Ethiopia, Tanzania, Uganda and Zambia, this paper, summarizes the analysis of projected farm income gains in the region from commercialization of Bt maize and Bt cotton; provides an analysis of commercial export risks from approval of GMOs and states the position of COMESA countries on GMOs to date. Using quite conservative methods, projected net income gains from GMOs remain significant with over US $ 25 net benefit per hectare. As regards commercial export risks to Europe from GMOs, the analysis suggests that except for Egypt, countries need not fear significant export losses if they make a decision to plant any of the GM commodities currently on the market.
Effects of Ill Health and Weather Variability on Savings
Creators: name: Ndirangu, Lydia K.
name: Ndirangu, Lydia K.
Publisher: name: Unknown
Year: 2008
Subjects: subject: Agricultural and Food Policy
subject: Community/Rural/Urban Development
subject: Demand and Price Analysis
subject: Food Consumption/Nutrition/Food Safety
subject: Food Security and Poverty
subject: International Relations/Trade
subject: Marketing
subject: FOS: Economics and business
subject: Productivity Analysis
subject: Research and Development/Tech Change/Emerging Technologies
subject: Household
subject: Shocks
subject: Savings
subject: HIV/AIDS

description: This paper examines the effects of households’ shocks on saving behaviour. It investigates the possibility that households save ex ante to buffer against adverse weather and health shocks. The relatively high prevalence rate of HIV/AIDS in Kenya combined with rain fed agriculture implies great uncertainty for rural livelihoods. Adopting a methodology previously used on cross-sectional data (Paxson, 1992), the paper examines the level of households precautionary behaviour. This is done by estimating the marginal propensity to save out of transitory income over a period of 18 months. The results show that while households may exhibit some level of prudence, the marginal propensity to save out of transitory income is about a third of what the permanent income hypothesis postulates. Seasonality influences prudence behaviour, with stressful seasons likely to depress substantially the level of precautionary saving. The presence of HIV/AIDS illness lowers savings and raises per capita consumption. While reduced savings may seem to jeopardize future investments, the rise in consumption when the human asset is threatened, is in accordance with behaviour of forward-looking agents when future income is endogenous to current asset shock. The desire to smooth the health (asset) stock outweighs the desire (ability) to smooth future consumption and therefore savings decline. As a consequence, consumption for the HIV-afflicted households is relatively more volatile. While these findings are in agreement with a buffer stock model, they go against previous predictions that, AIDS medical costs will be met by reducing both consumption and savings in a balanced manner, and not necessarily be drawn disproportionately from own savings. A rise in consumption and a drop in savings may be a signal that the relationship is likely to be disproportionate.
First results from the CERN Axion Solar Telescope (CAST)
Creators: name: CAST Collaboration
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Hypothetical axion-like particles with a two-photon interaction would be produced in the Sun by the Primakoff process. In a laboratory magnetic field (``axion helioscope'') they would be transformed into X-rays with energies of a few keV. Using a decommissioned LHC test magnet, CAST has been running for about 6 months during 2003. The first results from the analysis of these data are presented here. No signal above background was observed, implying an upper limit to the axion-photon coupling < 1.16 10^{-10} GeV^-1 at 95% CL for m_a
description: 4 pages, accepted by PRL. Final version after the referees comments