cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Magnetic structures, spin-flop transition and coupling of Eu and Mn magnetism in the Dirac semimetal EuMnBi$_2$
Creators: name: Zhu, Fengfeng
name: Wang, Xiao
name: Meven, Martin
name: Song, Junda
name: Mueller, Thomas
name: Yi, Changjiang
name: Ji, Wenhai
name: Shi, Youguo
name: Ma, Jie
name: Schmalzl, Karin
name: Schmidt, Wolfgang F.
name: Su, Yixi
name: Brückel, Thomas
Publisher: name: arXiv
Year: 2020
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We report here a comprehensive study of the AFM structures of the Eu and Mn magnetic sublattices as well as the interplay between Eu and Mn magnetism in this compound by using both polarized and non-polarized single-crystal neutron diffraction. Magnetic susceptibility, specific heat capacity measurements and the temperature dependence of magnetic diffractions suggest that the AFM ordering temperature of the Eu and Mn moments is at 22 and 337 K, respectively. The magnetic moments of both Eu and Mn ions are oriented along the crystallographic $c$ axis, and the respective magnetic propagation vector is $\textbf{k}_{Eu} = (0,0,1)$ and $\textbf{k}_{Mn}=(0,0,0)$. With proper neutron absorption correction, the ordered moments are refined at 3 K as 7.7(1) $μ_B$ and 4.1(1) $μ_B$ for the Eu and Mn ions, respectively. In addition, a spin-flop (SF) phase transition of the Eu moments in an applied magnetic field along the $c$ axis was confirmed to take place at a critical field of B$_c$ $\sim$ 5.3 T. The evolution of the Eu magnetic moment direction as a function of the applied magnetic field in the SF phase was also determined. Clear kinks in both field and temperature dependence of the magnetic reflections ($\pm1$, 0, 1) of Mn were observed at the onset of the SF phase transition and the AFM order of the Eu moments, respectively. This unambiguously indicates the existence of a strong coupling between Eu and Mn magnetism. The interplay between two magnetic sublattices could bring new possibilities to tune Dirac fermions via changing magnetic structures by applied fields in this class of magnetic topological semimetals.
description: 15 pages, 12 figures, accepted by Physical Review Research
Presenting Dance in Unconventional Performance Settings
Creators: name: Wynne, Erin
Publisher: name: ProQuest
Year: 2023
Subjects: classificationCode: 36
subject: Creative arts and writing
classificationCode: 3604
subject: Performing arts

description: This research investigates the challenges, opportunities, and best practices for the presentation of dance in unconventional performance settings, defined as performance locations which are not conventional to a particular dance form. Presenting dance in unconventional performance settings can be a powerful tool for both presenters and artists to access new audiences and create a deeper impact with their art. Unconventional spaces can lift up the field as whole by providing multiple ways in for new communities to the art of dance. However, when removing dance from its performance conventions presenters face a new set of challenges. A review of the available literature uncovers some key motivations for performing arts participation and a lack of research specifically surrounding dance in alternative locations. Interviews with twenty professionals doing this work in the field are utilized to develop a more complete picture of the use of unconventional spaces in the field of dance. The paper concludes with a list of best practices to address challenges surrounding authenticity, logistics, audience engagement, and audience development.
Constraining the string scale: from Planck to Weak and back again
Creators: name: Abel, S. A.
name: Santiago, J.
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: String and field theory ideas have greatly influenced each other since the so called second string revolution. We review this interrelation paying particular attention to its phenomenological implications. Our guiding principle is the radical shift in the way that we think about the fundamental scale, in particular the way in which string models have been able to accommodate values from the Planck $M_\mathrm{Pl}\sim 10^{18}$ GeV down to the electroweak scale $M_{EW}\sim $ TeV.
description: Invited review aimed at an experimental audience
Presenting Dance in Unconventional Performance Settings
Creators: name: Wynne, Erin
Publisher: name: American University
Year: 2023

description: This research investigates the challenges, opportunities, and best practices for the presentation of dance in unconventional performance settings, defined as performance locations which are not conventional to a particular dance form. Presenting dance in unconventional performance settings can be a powerful tool for both presenters and artists to access new audiences and create a deeper impact with their art. Unconventional spaces can lift up the field as whole by providing multiple ways in for new communities to the art of dance. However, when removing dance from its performance conventions presenters face a new set of challenges. A review of the available literature uncovers some key motivations for performing arts participation and a lack of research specifically surrounding dance in alternative locations. Interviews with twenty professionals doing this work in the field are utilized to develop a more complete picture of the use of unconventional spaces in the field of dance. The paper concludes with a list of best practices to address challenges surrounding authenticity, logistics, audience engagement, and audience development.
Onychocellaria Voigt 1957
Creators: name: Taylor, Paul D.
name: Martha, Silviu O.
name: Gordon, Dennis P.
Publisher: name: Zenodo
Year: 2018
Subjects: Biodiversity
Taxonomy
Animalia
Bryozoa
Gymnolaemata
Cheilostomatida
Onychocellidae
Onychocellaria

description: Genus Onychocellaria Voigt, 1957
(Figure 21)
 Type species
 Eschara rhombea von Hagenow, 1851, by original designation. Cretaceous, Maastrichtian, Maastricht, Netherlands.
 Diagnosis
Colony erect bifoliate, palmate (Figure 21 (a)), unbranched, tapering proximally and presumably with basal rootlets. Autozooids diamond shaped; zooidal boundaries sharply raised. Cryptocyst extensive, granular. Gymnocyst lacking. Opesia subterminal, occupying about one-third of frontal surface; semielliptical, wider than long, the proximal edge gently convex, opesiular indentations present; lacking lateral constrictions. Ovicells immersed, visible as a small cap on the distal margin of the fertile zooid (Figure 21 (b)). Avicularia vicarious, symmetrical, large, about 1.5× longer than an autozooid but of similar width; opesia semielliptical with a long medioproximal sinus (Figure 21 (b)); rostrum long, parallel-sided, distal end rounded arch shaped.
 Remarks
 Aside from the type species, Voigt (1957) also assigned to his new genus Onychocella linearis Levinsen, 1925 from the Maastrichtian of Denmark and Germany, and subsequently (Voigt 1968), Eschara caecilia d’ Orbigny, 1851 from the Maastrichtian of Cotentin, Normandy, France. Unlike the type species, O. caecilia has cylindrical branches and may have been truly cellariiform (i.e. multiply articulated) rather than just basally jointed, and questionably assignable to Onychocellidae. The key characters of Onychocellaria are thus the large, symmetrical avicularia and evidence for basal articulation.
 Range
Cretaceous (Campanian to Maastrichtian).
description: Published as part of Taylor, Paul D., Martha, Silviu O. & Gordon, Dennis P., 2018, Synopsis of ' onychocellid' cheilostome bryozoan genera, pp. 1657-1721 in Journal of Natural History (J. Nat. Hist.) (J. Nat. Hist.) 52 (25 - 26) on pages 1692-1693, DOI: 10.1080/00222933.2018.1481235, http://zenodo.org/record/4747141
THREE ESSAYS ON GENDER, TIME USE AND FEMALE LABOR FORCE PARTICIPATION
Creators: name: He, Chang
Publisher: name: American University
Year: 2023

description: This dissertation consists of three essays on gender and development. This first essay, the presence of sons and mothers’ labor force participation: an empirical study in China, explores the effects of sons on mother’s labor force participation in China using the data from the China Family and Panel Study in 2016. It investigates whether or not Chinese mothers are more likely to be involved in the labor market because of social norms such as son preference and the practice of high bride price. This study adopts the Probit model and finds a negative relationship between the presence of a son and the labor force participation if mothers have two children. The OLS estimates show mothers’ time use in market work is insignificant related to the presence of a son. The second essay, the impact of public infrastructure on children’s time use: evidence from South Africa, examines the impact of public infrastructure on children’s time use in various activities, including activities requiring water, such as cooking, doing laundry, and time use in learning and leisure. Based on data from the 2010 South Africa National Time Use Survey, an analysis using 7715 children aged 10-17 years shows access to basic services such as safe water can directly decrease the amount of time children spend on work activities requiring water and market-related work, while access to a nearby school does not show a consistent and significant impact on children’s time spent learning. The third essay, time poverty and discretionary time of working parents in the US, studies the time poverty of working parents in the United States from 2003 to 2019. Using the American Time Use Survey, this paper shows that the average discretionary time decreases over the years, and the time poverty rate increases. Working mothers are always at a high risk of time poverty than working fathers. The multivariate results indicate being a single parent is associated with more discretionary time and a low incidence of time poverty than a partnered parent. Moreover, single mothers are more time-poor than single fathers but less time-poor than married mothers. The employment status of a spouse is not a significant determinant of the discretionary time and time poverty of married parents.
X-ray Emission From Hot Gas in Galaxy Groups and Clusters in Simba
Creators: name: Robson, Dylan
name: Davé, Romeel
Publisher: name: arXiv
Year: 2020
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We examine X-ray scaling relations for massive halos ($M_{500}>10^{12.3}M_\odot$) in the Simba galaxy formation simulation. The X-ray weighted luminosity, $L_X$ vs. $M_{500}$ has power-law slopes $\approx\frac{5}{3}$ and $\approx\frac{8}{3}$ above and below $10^{13.5} M_{\odot}$, deviating from the self-similarity increasingly to low masses. $T_X-M_{500}$ is self-similar above this mass, and slightly shallower below it. Comparing Simba to observed $T_X$ scalings, we find that $L_X$, $L_X$-weighted [Fe/H], and entropies at $0.1 R_{200}$ ($S_{0.1}$) and $R_{500}$ ($S_{500}$) all match reasonably well. $S_{500}-T_X$ is consistent with self-similar expectations, but $S_{0.1}-T_X$ is shallower at lower $T_X$, suggesting the dominant form of heating moves from gravitational shocks in the outskirts to non-gravitational feedback in the cores of smaller groups. Simba matches observations of $L_X$ versus central galaxy stellar mass $M_*$, predicting the additional trend that star-forming galaxies have higher $L_X(M_*)$. The electron density profiles for $M_{500}>10^{14}M_\odot$ halos show a $\sim 0.1R_{200}$ core, but at lower masses the profiles are flat at all radii. $T_X$ profiles are flat for $M_{500}<10^{13}M_{\odot}$, and increasingly centrally peaked with mass. The resulting entropy profiles are centrally depressed for the highest and lowest mass halos but flatter for intermediate-mass halos, with $S_{\rm core}\approx200-400$ keV cm$^2$. Simba's [Fe/H] profile matches observations in the core but over-predicts at larger radii, suggesting overly widespread metal distribution. We show that Simba's bipolar jet AGN feedback is most responsible for increasingly evacuating lower-mass halos, thereby suppressing core densities and raising core entropies to improve agreement with X-ray scaling relations.
KamLAND, solar antineutrinos and the solar magnetic field
Creators: name: Chauhan, Bhag C.
name: Pulido, Joao
name: Torrente-Lujan, E.
Publisher: name: arXiv
Year: 2003
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: In this work the possibility of detecting solar electron antineutrinos produced by a solar core magnetic field from the KamLAND recent observations is investigated. We find a scaling of the antineutrino probability with respect to the magnetic field profile in the sense that the same probability function can be reproduced by any profile with a suitable peak field value. In this way the solar electron antineutrino spectrum can be unambiguosly predicted. We use this scaling and the negative results indicated by the KamLAND experiment to obtain upper bounds on the solar electron antineutrino flux. We get $ϕ_{\barν}<3.8\times 10^{-3}ϕ(^8B)$ at 95% CL. For 90% CL this becomes $ϕ_{\barν}<3.4\times 10^{-3}ϕ(^8B)$, an improvement by a factor of 3-5 with respect to existing bounds. These limits are independent of the detailed structure of the magnetic field in the solar interior. We also derive upper bounds on the peak field value which are uniquely determined for a fixed solar field profile. In the most efficient antineutrino producing case, we get (95% CL) an upper limit on the product of the neutrino magnetic moment by the solar field $μB< 2.8\times 10^{-19}$ MeV or $B_0 \leq 4.9 \times 10^7 G$ for $μ_ν=10^{-12}μ_B$.
description: 15 pages. References corrected. Minor changes in the text
Analysis of Urban Households' Demand for Sweeteners in Ogun State, Nigeria
Creators: name: Fade-Aluko, Titilope O.
name: Sanusi, Rahman A.
name: Afolami, Carolyn A.
name: Phillip, Biola B.
name: Fade-Aluko, Titilope O.
name: Sanusi, Rahman A.
name: Afolami, Carolyn A.
name: Phillip, Biola B.
Publisher: name: Unknown
Year: 2016
Subjects: subject: Consumer/Household Economics
subject: Demand and Price Analysis
subject: Food Security and Poverty
subject: Urban households
subject: Demand
subject: Sweeteners
subject: Ogun State, Nigeria

description: Sweeteners, jointly demanded with food and beverages, have been proven to be good sources of energy, vitamins, minerals and amino acids. This study examined urban households’ demand for sweeteners in Ogun State, Nigeria. Primary data were obtained using a pre-tested questionnaire in a cross sectional survey of 160 households through a multi-stage sampling technique. Data were analysed using descriptive statistics and the Linear Approximate Almost Ideal Demand System (LA-AIDS) model. Results revealed that 51.2% of the households were headed by females with an average age of 37 years and an average household size of five persons. Majority (62.3%) of the household heads had tertiary education. The average monthly household demand for honey, sugar and other sweeteners were 1.31liters, 1.06kg and 0.30kg respectively. About forty-one percent of the household heads had salaried occupation and 6.3% were unemployed. The mean monthly household income was N93,347.90 with the average monthly food expenditure as N12,289.98 of which N1,445.70 was expended on honey and N392.35 on sugar. Own-price and income had an increasing effect on demand for honey (p<0.01) while own-price had an increasing effect on demand for sugar (p<0.01). The age of household head had incremental influence on honey demand (p<0.01) while it had a decreasing influence on sugar demand (p<0.05). Also, marital status had incremental influence on honey demand (p<0.10) while it had a decreasing influence on sugar demand (p<0.05). The study concluded that the demand level for honey was higher than sugar and other sweeteners in all of the households. The study recommended that increased household income should be enhanced to boost household demand for honey.
Additional file 1 of Efficiency of integrated electrooxidation and anaerobic digestion of waste activated sludge
Creators: name: J. A. Barrios
name: A. Cano
name: F. F. Rivera
name: M. E. Cisneros
name: Durán, U.
Publisher: name: figshare
Year: 2021
Subjects: subject: Biochemistry
subject: Space Science
subject: Medicine
subject: Pharmacology
subject: Biotechnology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Ecology
subject: FOS: Biological sciences
subject: 69999 Biological Sciences not elsewhere classified

description: Additional file 1 EOP-AD system energy production and consumption calculations.
THE IMPACT OF DIFFERENT MACRO-ECONOMIC VARIABLES ON THE OPTIMAL DISTRIBUTION OF BEEF IN THE SOUTHERN AFRICAN CUSTOMS UNION
DIE IMPAK VAN VERSKILLENDE MAKRO-EKONOMIESE VERANDERLIKES OP DIE OPTIMALE DISTRIBUSIE VAN BEESVLEIS IN DIE SUIDER-AFRIKAANSE DOEANE UNIE
Creators: name: Jooste, A.
name: Van Schalkwyk, H. D.
name: Jooste, A.
name: Van Schalkwyk, H. D.
Publisher: name: Unknown
Year: 1996
Subjects: Financial Economics
Livestock Production/Industries
Research Methods/ Statistical Methods

description: ~is _Pa~er analyzed the impact of different conditions affecting prices, portrayed by means of scenarios, on the optimal dts~butJonal pattern of beef. The effects ofliberalized beef trade in the SACU is quantified in this paper. The focus is on regional supply and demand and the effect of world prices and tariffs on beef trade in the SACU is estimated. This is deemed essential due to the changing marketing environment domestically and abroad. In the absence of a tariff on beef imports, a decline of approximately 14 per cent in the domestic price is necessary to clear the market. Efficiency in the beef industry will have to increase significantly if beef producers are to compete with nonSACU members. The decen~al~tion of the beef industry ~ol~s v~ous advantages, especially if the desperate need to create employment opportunities in rural areas, the skew distribution of income and the poverty level in rural areas is considered. Existing infrastructure's sustainability should be market driven.
Higgs modes in two-dimensional spatially-indirect exciton condensates
Creators: name: Xue, Fei
name: Wu, Fengcheng
name: MacDonald, Allan H.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: Higgs modes in condensed matter physics have drawn attention because of analogies to the Higgs bosons of particle physics. Here we use a microscopic time-dependent mean-field theory to study the collective mode spectra of two-dimensional spatially indirect exciton (electron-hole pair) condensates, focusing on the Higgs modes, i.e., those that have a large weight in electron-hole pair amplitude response functions. We find that in the low exciton density (BEC) limit, the dominant Higgs modes of spatially indirect exciton condensates correspond to adding electron-hole pairs that are orthogonal to the condensed pair state. We comment on the previously studied Higgs-like collective excitations of superconductors in light of this finding.
description: 12 pages, 5 figures. Comments are welcome
Damage Growth in Random Fuse Networks
Creators: name: Reurings, F.
name: Alava, M. J.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The correlations among elements that break in random fuse network fracture are studied, for disorder strong enough to allow for volume damage before final failure. The growth of microfractures is found to be uncorrelated above a lengthscale, that increases as the the final breakdown is approached. Since the fuse network strength decreases with sample size, asymptotically the process resembles more and more mean-field-like (``democratic fiber bundle'') fracture. This is found from the microscopic dynamics of avalanches or microfractures, from a study of damage localization via entropy, and from the final damage profile. In particular, the last one is statistically constant, except exactly at the final crack zone (in contrast to recent results by Hansen et al., Phys. Rev. Lett. 90, 045504 (2003)), in spite of the fact that the fracture surfaces are self-affine.
Pseudolunulites Cook and Voigt 1986
Creators: name: Taylor, Paul D.
name: Martha, Silviu O.
name: Gordon, Dennis P.
Publisher: name: Zenodo
Year: 2018
Subjects: Biodiversity
Taxonomy
Animalia
Bryozoa
Gymnolaemata
Cheilostomatida
Onychocellidae
Pseudolunulites

description: Genus Pseudolunulites Cook and Voigt, 1986
(Figure 22)
 Type species
 Discoescharites irregularis Roemer, 1863, by original designation. Oligocene, Chattian, Bünde, North Rhine-Westphalia, Germany.
 Diagnosis
Colony free-living (Figure 22 (a)), discoidal, convex upper surface (Figure 22 (b)), concave lower surface; basal wall exterior; regular overgrowths may spread radially from the centre of the colony on the upper surface. Autozooids squat subhexagonal (Figure 22 (d,f)); zooidal boundaries grooved. Cryptocyst extensive, granular. Gymnocyst lacking. Opesia terminal, occupying about half of frontal surface; semi-elliptical with moderate to deep opesiular indentations and proximolateral opesiular constrictions. Ovicells unknown. Avicularia vicarious, symmetrical (Figure 22 (e)), half or more of the length of an autozooid; opesia keyhole shaped; rostrum triangular, short, floor pustulose; autozooids proximolateral of avicularia oriented distolaterally outwards. Ancestrula (Figure 22 (c)) budding a distal and a pair of distolateral autozooids plus a pair of proximolateral avicularia (Cook and Voigt 1986).
 Remarks
 Despite its lunulitiform colony, Cook and Voigt (1986) argued that their new monospecific genus Pseudolunulites was unrelated to Lunulitidae, from which it differed in the structure of the colony and zooids, and instead belonged within a ‘polyphyletic’ Onychocellidae. A relationship with the common genus Lunulites was also discounted as all known species of this genus by the Oligocene had porous, cryptocystal basal walls of aragonite unlike the gymnocystal, seemingly calcitic basal walls of Pseudolunulites (and of earlier species of Lunulites). We provisionally retain Pseudolunulites in Onychocellidae as the only free-living genus in this family, pending a better understanding of the relationships between onychocellids and the non-cupuladrian families with free-living colonies (Lunulitidae, Lunulariidae, Otionellidae and Selenariidae).
 Range
Oligocene (Chattian).
description: Published as part of Taylor, Paul D., Martha, Silviu O. & Gordon, Dennis P., 2018, Synopsis of ' onychocellid' cheilostome bryozoan genera, pp. 1657-1721 in Journal of Natural History (J. Nat. Hist.) (J. Nat. Hist.) 52 (25 - 26) on pages 1693-1694, DOI: 10.1080/00222933.2018.1481235, http://zenodo.org/record/4747141
BIOCHEMICAL ANALYSIS OF TURKESTAN SOAP ROOT SAPONS ALLOCHRUSA GYPSOPHILLOIDES (REGEL) SCHISCHK
Creators: name: Kasimova Iroda Unvanovna Lecturer Department of Zoology and Biochemistry Mamarakhmonov Mukhamatdin Khomidovich PhD, Associate Professor Department of Chemistry  Andijan State University 170100, Andijan, University St. Bd. 129, Republic of Uzbekistan
Publisher: name: Zenodo
Year: 2024

description: Allochrusa gypsophiloidesis one of the most valuable technical and medicinal plants, officially included into the national pharmacopoeia, and having practical applications in many fields of the domestic industry.The aim of this study was a qualitative and quantitative study of saponins from Allochrusa gypsophiloides collected in South Kazakhstan region of the Republic of Kazakhstan. The results of qualitative reactions show the presence of triterpenic saponins in plant material.

Key words: Allochrusa gypsophiloides, triterpenes, saponins, oleanolic acid, hemolytic index, Turkestan soap root, gersabyn, effervescent wines, beer, soft drinks, triterpene saponins, technical saponin, oleanol series.
REFINING RETURNS TO RESEARCH AND DEVELOPMENT IN SOUTH AFRICAN COMMERCIAL AGRICULTURE
Creators: name: Khatri, Y.
name: Schimmelpfennig, D.
name: Thirtle, C.
name: Van Zyl, J.
name: Khatri, Y.
name: Schimmelpfennig, D.
name: Thirtle, C.
name: Van Zyl, J.
Publisher: name: Unknown
Year: 1996
Subjects: Agricultural and Food Policy
Research and Development/Tech Change/Emerging Technologies

description: Use ofa long-run profit function provides accurate estimates of returns to agricultural R&D in Europe and North America, a result that is tied to the long term basic and applied nature of the research institutions in these areas. Agricultural R&D in South Africa is fundamentally different with a more adaptive character, resulting in a shorter lag of five years between research spending and changes in TFP. In this situation, the long-run profit function input demand and output supply elasticities are too high, resulting in overestimation of returns to R&D. A potential solution to this problem is to use a short-run profit function in the calculation of returns to R&D. Several other inputs are held fixed and the result is a short-run return to R&D in South Africa that compares favourably with long-run return levels that have been established for the northern hemisphere.
OB00144 - OB00144 Jamb Plates of Pravarasena II
Creators: name: No Author
Publisher: name: Zenodo
Year: 2022

description: [caption id="attachment_6720" align="alignnone" width="409"] Ancient Vidarbha showing find-spots of Vākāṭaka inscriptions. (Zenodo).[/caption] [caption id="attachment_4848" align="alignnone" width="436"] Copper plate charter of Pravarasena II found at the village of Jāmb.[/caption]
THREE ESSAYS ON GENDER, TIME USE AND FEMALE LABOR FORCE PARTICIPATION
Creators: name: He, Chang
Publisher: name: ProQuest
Year: 2023
Subjects: classificationCode: 38
subject: Economics

description: This dissertation consists of three essays on gender and development. This first essay, the presence of sons and mothers’ labor force participation: an empirical study in China, explores the effects of sons on mother’s labor force participation in China using the data from the China Family and Panel Study in 2016. It investigates whether or not Chinese mothers are more likely to be involved in the labor market because of social norms such as son preference and the practice of high bride price. This study adopts the Probit model and finds a negative relationship between the presence of a son and the labor force participation if mothers have two children. The OLS estimates show mothers’ time use in market work is insignificant related to the presence of a son. The second essay, the impact of public infrastructure on children’s time use: evidence from South Africa, examines the impact of public infrastructure on children’s time use in various activities, including activities requiring water, such as cooking, doing laundry, and time use in learning and leisure. Based on data from the 2010 South Africa National Time Use Survey, an analysis using 7715 children aged 10-17 years shows access to basic services such as safe water can directly decrease the amount of time children spend on work activities requiring water and market-related work, while access to a nearby school does not show a consistent and significant impact on children’s time spent learning. The third essay, time poverty and discretionary time of working parents in the US, studies the time poverty of working parents in the United States from 2003 to 2019. Using the American Time Use Survey, this paper shows that the average discretionary time decreases over the years, and the time poverty rate increases. Working mothers are always at a high risk of time poverty than working fathers. The multivariate results indicate being a single parent is associated with more discretionary time and a low incidence of time poverty than a partnered parent. Moreover, single mothers are more time-poor than single fathers but less time-poor than married mothers. The employment status of a spouse is not a significant determinant of the discretionary time and time poverty of married parents.
On The Classical Dynamics Of Charges In Noncommutative QED
Creators: name: Fatollahi, Amir H.
name: Mohammadzadeh, Hossein
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: One approach for formulating the classical dynamics of charged particles in non-Abelian gauge theories is due to Wong. Following Wong's approach, we derive the classical equations of motion of a charged particle in U(1) gauge theory on noncommutative space, the so-called noncommutative QED. In the present use of the procedure, it is observed that the definition of mechanical momenta should be modified. The derived equations of motion manifest the previous statement about the dipole behavior of charges in noncommutative space.
description: 9 pages, no figure, to appear in Eur. Phys. J. C
47 Meters Down: Uncaged and Uncolonized- Challenging Colonial Rhetoric & Spaces in the Shark Horror Film 47 Meters Down: Uncaged
Creators: name: Tuttle, Brady E.
Publisher: name: American University
Year: 2023

description: 47 Meters Down: Uncaged (2019) is the indirect sequel to 47 Meters Down (2017) and follows four American teenage girls as they cave dive in a flooded Mayan temple and catacomb that, unbeknownst to them, houses (at least) two ancient, blind sharks who attack the girls as they attempt to escape the caves. Through a comparative analysis of 47 Meters Down: Uncaged in relation to both animal horror films and archaeological adventure films, I explore the ways that the film essentially punishes us for assuming that the humans are the protagonists and the sharks the villains. By reading the film in the lens of Said’s work on Orientalism, I argue that the sharks function as signifiers of the Mayans and that their defense of a sacred space is justified against the human characters who are essentially imperial invaders seeking to plunder their home.
47 Meters Down: Uncaged and Uncolonized- Challenging Colonial Rhetoric & Spaces in the Shark Horror Film 47 Meters Down: Uncaged
Creators: name: Tuttle, Brady E.
Publisher: name: ProQuest
Year: 2023
Subjects: classificationCode: 36
subject: Creative arts and writing
classificationCode: 3602
subject: Creative and professional writing

description: 47 Meters Down: Uncaged (2019) is the indirect sequel to 47 Meters Down (2017) and follows four American teenage girls as they cave dive in a flooded Mayan temple and catacomb that, unbeknownst to them, houses (at least) two ancient, blind sharks who attack the girls as they attempt to escape the caves. Through a comparative analysis of 47 Meters Down: Uncaged in relation to both animal horror films and archaeological adventure films, I explore the ways that the film essentially punishes us for assuming that the humans are the protagonists and the sharks the villains. By reading the film in the lens of Said’s work on Orientalism, I argue that the sharks function as signifiers of the Mayans and that their defense of a sacred space is justified against the human characters who are essentially imperial invaders seeking to plunder their home.
Production Efficiency of Poultry Egg (Layer) Production in Chikun and Igabi Local Government Areas of Kaduna State, Nigeria
Creators: name: Saliu, L.A.
name: Abdulrazaq, S.A.
name: Eleke, P.N.
name: Saliu, L.A.
name: Abdulrazaq, S.A.
name: Eleke, P.N.
Publisher: name: Unknown
Year: 2016
Subjects: subject: Consumer/Household Economics
subject: Farm Management
subject: Production Economics
subject: Production efficiency
subject: Stochastic production frontier
subject: Poultry egg production
subject: Return to scale
subject: Kaduna

description: This study examined production efficiency of poultry egg production in Chikun and Igabi LGAs of Kaduna State, Nigeria. Multi-stage sampling procedure was adopted to select 49 poultry egg producers through the use of structured questionnaire. A Stochastic frontier production functions was used to analyse the technical efficiency (TE), allocative efficiency (AE) and economic efficiency (EE) of egg farmers. The results of the maximum likelihood estimate (MLE) of the stochastic frontier production showed poultry egg farmers recorded technical efficiency of 54%, allocative efficiency of 52% and economic efficiency of 34%. Flock size (p < 0.05) and drug (p < 0.10) significantly influenced poultry egg production while labour, dosage of vaccine and feed were not significant. However, all these variables were significant at (p<0.01) in allocative efficiency model. For the inefficiency model, the result also revealed that educational level (p<0.01), household size (p<0.01) and main occupation (p<0.01) were the socio-economic and institutional factors that significantly increased technical efficiency while farming experience (p<0.01) increased technical inefficiency. The return to scale was 1.18 (increasing returns to scale). The low AE and EE in poultry egg production can be attributed to the inflexible responses of poultry farmers to changes in market prices or to their applying inputs mainly on experience. The study recommended among others that poultry farmer in the study area should create better market information systems for efficient input procurement and output disposal.
Additional file 1 of Associations between participation in, intensity of, and time spent on leisure time physical activity and risk of inflammatory bowel disease among older adults (PA-IBD): a prospective cohort study
Creators: name: Rasmussen, Nathalie Fogh
name: Bech, Bodil Hammer
name: Rubin, Katrine Hass
name: Andersen, Vibeke
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: Genetics
subject: FOS: Biological sciences
subject: Biotechnology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Immunology
subject: FOS: Clinical medicine
subject: 69999 Biological Sciences not elsewhere classified
subject: Science Policy

description: Additional file 1: Supplemental Table S1. Hazard ratios from adjusted analyses stratified on age, smoking, BMI, physical activity at work, and work status. Results of the analyses stratified according to strata of age groups (50–59 and 60–64 years), BMI (
Additional file 4 of Quantitative proteomic, physiological and biochemical analysis of cotyledon, embryo, leaf and pod reveals the effects of high temperature and humidity stress on seed vigor formation in soybean
Creators: name: Jiaping Wei
name: Xiaolin Liu
name: Linzhi Li
name: Haihong Zhao
name: Sushuang Liu
name: Xingwang Yu
name: Yingzi Shen
name: Yali Zhou
name: Yajing Zhu
name: Yingjie Shu
name: Ma, Hao
Publisher: name: figshare
Year: 2020
Subjects: subject: Genetics
subject: FOS: Biological sciences
subject: Plant Biology

description: Additional file 4 : Figure S4. Enzyme activities of CAT, POD, and SOD in the pod skin of soybean cvs. Xiangdou No. 3 and Ningzhen No. 1
Image formation by manipulation of the entangled angular spectrum
Creators: name: Caetano, D. P.
name: Ribeiro, P. H. Souto
Publisher: name: arXiv
Year: 2003
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We demonstrate theoretical and experimentally how it is possible to manipulate an entangled angular spectrum of twin beams, in order to reconstruct correlated images with coincidence detection. The entangled angular spectrum comes from the pump and the image is obtained only if signal and idler are properly treated.
description: Submitted for publication in Optics Communications
Heat flow reversal in a trapped-ion simulator
Creators: name: González, P. U. Medina
name: Prieto, I. Ramos
name: Rodríguez-Lara, B. M.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We propose a trapped-ion platform to simulate a reconfigurable spin-spin Hamiltonian related to quantum thermodynamic processes. Starting from an experimental model describing two trapped-ions under slightly off-resonant first sideband driving with individually controlled driving phases, we follow an operational quantum optics approach to show that it produces an effective model appearing in recent quantum thermodynamics proposals. We show that projection into the vibrational ground state manifold allows full analytic treatment. As a practical example, we take experimental data from a $^{187}$Yb$^{+}$ trap and numerically simulate the reversal of heat flow between two thermal spins controlled by their quantum correlations.
Revised masses of dust and gas of SLUGS FIR bright galaxies based on a recent CO survey
Creators: name: Seaquist, E. R.
name: Yao, Lihong
name: Dunne, L.
name: Cameron, H.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Recent CO measurements of an essentially complete sub-sample of galaxies from the SCUBA Local Universe Survey (SLUGS) are used to examine their implications for dust and gas masses in this sample. Estimates of dust masses are affected by a contribution to the SCUBA brightness measurements by CO(3-2) emission, and molecular gas masses by the use of a modified value of the CO-to-H_2 conversion factor X. The average dust mass is reduced by 25-38 per cent, which has no bearing on earlier conclusions concering the shapes of the dust mass luminosity function derived from the SLUGS. The value of X found from the CO survey, when applied together with the reduction in dust masses, leads to lower estimates for the mean gas-to-dust mass ratios, where the gas includes both H_2 and HI. For the CO sample, the mean global ratio is reduced from approximately 430 to about 320-360, but is further reduced to values near 50 when applied to the nuclear regions relevant to the CO observations. We discuss these results and suggest that the differences between the nuclear and outer regions may simply reflect differences in metallicity or the existence of considerable amounts of unobserved cold dust in the outer regions of these galaxiies.
description: 18 pages, 2 tables, 4 figures, accepted for publication in MNRAS
The Index Theorem and Random Matrix Theory for Improved Staggered Quarks
Creators: name: Follana, E.
name: Hart, A.
name: Davies, C. T. H.
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: We study various improved staggered quark Dirac operators on quenched gluon backgrounds in lattice QCD. We find a clear separation of the spectrum of eigenvalues into high chirality, would-be zero modes and others, in accordance with the Index Theorem. We find the expected clustering of the non-zero modes into quartets as we approach the continuum limit. The predictions of random matrix theory for the epsilon regime are well reproduced. We conclude that improved staggered quarks near the continuum limit respond correctly to QCD topology.
description: 6 pages, 2 figures, talk presented at Lattice 2005 (Dublin). To appear in Proceedings of Science
Additional file 3 of The effects of different doses of exercise on pancreatic β-cell function in patients with newly diagnosed type 2 diabetes: study protocol for and rationale behind the “DOSE-EX” multi-arm parallel-group randomised clinical trial
Creators: name: Lyngbaek, Mark P. P.
name: Legaard, Grit E.
name: Bennetsen, Sebastian L.
name: Feineis, Camilla S.
name: Villads Rasmussen
name: Moegelberg, Nana
name: Brinkløv, Cecilie F.
name: Nielsen, Anette B.
name: Kofoed, Katja S.
name: Lauridsen, Carsten A.
name: Ewertsen, Caroline
name: Poulsen, Henrik E.
name: Christensen, Robin
name: Van Hall, Gerrit
name: Karstoft, Kristian
name: Solomon, Thomas P. J.
name: Ellingsgaard, Helga
name: Almdal, Thomas P.
name: Pedersen, Bente K.
name: Ried-Larsen, Mathias
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: Physiology
subject: FOS: Biological sciences
subject: Biotechnology
subject: Cancer
subject: Science Policy

description: Additional file 3. Outcome Table Article 2.
Neonatal complications and neurophysiological development in twins – a long-term follow-up study
Creators: name: Vedel, Cathrine
name: Larsen, Helle
name: Holmskov, Anni
name: Andreasen, Kirsten Riis
name: Uldbjerg, Niels
name: Ramb, Jan
name: Bødker, Birgit
name: Skibsted, Lillian
name: Sperling, Lene
name: Krebs, Lone
name: Zingenberg, Helle
name: Laursen, Lone
name: Christensen, Jeanette Tranberg
name: Tabor, Ann
name: Rode, Line
Publisher: name: Taylor & Francis
Year: 2020
Subjects: subject: Medicine
subject: Cell Biology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Developmental Biology
subject: Science Policy
subject: 110309 Infectious Diseases
subject: FOS: Health sciences
subject: Computational Biology

description: To investigate the association between neonatal complications and neurophysiological development in twins at 18 and 48–60 months of age. This was a secondary analysis of 841 Danish mono- and dichorionic diamniotic twins from a randomized controlled trial (PREDICT study), which included an assessment of the twin’s neurophysiological development using the Ages and Stages Questionnaire (ASQ) that had been filled out by the parents at 18 and 48 or 60 months. The correlation within twin pairs was accounted for by the method of generalized estimating equation. Models were adjusted for maternal educational score and gestational age at delivery. ASQ data were available for 823 children at 18 months and 425 children at 48 or 60 months. Low maternal educational score and preterm delivery <34 weeks were associated with a lower ASQ score at 48–60 months (−15.4 points (95%CI −26.4; −4.5) and −13.2 points (95%CI −23.8; −2.5), respectively). Neonatal sepsis and a compound of intraventricular hemorrhage, retinopathy of prematurity and necrotizing enterocolitis (IVH/ROP/NEC) were associated with lower ASQ score at 18 months (−15.3 points (95%CI −28.1; −2.5) and −30.8 points (95%CI −59.5; −2.1), respectively). Children with IVH/ROP/NEC had a lower ASQ score at 48–60 months (−34.2 points (95%CI −67.9; −0.6)). The associations were not specific to only one ASQ domain. Several neonatal complications are associated with poorer neurophysiological development in twins during childhood, even after adjustment for gestational age at delivery.
Haldane Gap of the Three-Box Symmetric $\mathrm{SU}(3)$ Chain
Creators: name: Gozel, Samuel
name: Nataf, Pierre
name: Mila, Frédéric
Publisher: name: arXiv
Year: 2020
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Motivated by the recent generalization of the Haldane conjecture to $\mathrm{SU}(3)$ chains [M. Lajkó et al., Nucl. Phys. B924, 508 (2017)] according to which a Haldane gap should be present for symmetric representations if the number of boxes in the Young diagram is a multiple of three, we develop a density matrix renormalization group algorithm based on standard Young tableaus to study the model with three boxes directly in the representations of the global $\mathrm{SU}(3)$ symmetry. We show that there is a finite gap between the singlet and the symmetric $[3\,0\,0]$ sector $Δ_{[3\,0\,0]}/J = 0.040\pm0.006$ where $J$ is the antiferromagnetic Heisenberg coupling, and we argue on the basis of the structure of the low energy states that this is sufficient to conclude that the spectrum is gapped.
description: 6 pages, 4 figures, + Supplemental Material 12 pages, 15 figures
Additional file 3 of Quantitative proteomic, physiological and biochemical analysis of cotyledon, embryo, leaf and pod reveals the effects of high temperature and humidity stress on seed vigor formation in soybean
Creators: name: Jiaping Wei
name: Xiaolin Liu
name: Linzhi Li
name: Haihong Zhao
name: Sushuang Liu
name: Xingwang Yu
name: Yingzi Shen
name: Yali Zhou
name: Yajing Zhu
name: Yingjie Shu
name: Ma, Hao
Publisher: name: figshare
Year: 2020
Subjects: subject: Genetics
subject: FOS: Biological sciences
subject: Plant Biology

description: Additional file 3 : Figure S3. Enzyme activities of CAT, POD, and SOD in the leaves of soybean cvs. Xiangdou No. 3 and Ningzhen No. 1
Five-Dimensional QED, Muon Pair Production and Correction to the Coulomb Potential
Creators: name: Nascimento, J. R.
name: Pires, C. A de S.
name: Ribeiro, R. F.
Publisher: name: arXiv
Year: 2003
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We consider QED in five dimensions in a configuration where matter is localized on a 3-brane while foton propagates in the bulk. The idea is to investigate the effects of the Kaluza-Klein modes of the photon in the relativistic regime, but in low energy, and in the nonrelativistic regime. In the relativistic regime, we calculate the cross section for the reaction $e^+ + e^- \to μ^+ + μ^-$. We compare our theoretical result with a precise measurement of this cross section at $\sqrt{s}=57.77$ GeV. As result, we extract a lower bound on the size of the extra dimension. In the nonrelativistic regime, we derive the contribution for the Coulomb potential due to the whole tower of the Kaluza-Klein excited modes of the photon. We use the modified potential to calculate the Rutherford scattering differential cross section.
description: minor changes, three new refs. added, to appear in IJMPA
Monte Carlo Neutrino Oscillations
Creators: name: Kneller, James P.
name: McLaughlin, Gail C.
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We demonstrate that the effects of matter upon neutrino propagation may be recast as the scattering of the initial neutrino wavefunction. Exchanging the differential, Schrodinger equation for an integral equation for the scattering matrix S permits a Monte Carlo method for the computation of S that removes many of the numerical difficulties associated with direct integration techniques.
Noncollinear enhancement cavity for record-high out-coupling efficiency of an extreme-UV frequency comb
Creators: name: Zhang, Chuankun
name: Schoun, Stephen B.
name: Heyl, Christoph M.
name: Porat, Gil
name: Gaarde, Mette B.
name: Ye, Jun
Publisher: name: arXiv
Year: 2020
Subjects: subject: Optics (physics.optics)
subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: We demonstrate a femtosecond enhancement cavity with a crossed-beam geometry for efficient generation and extraction of extreme-ultraviolet (XUV) frequency combs at a 154 MHz repetition rate. We achieve a record-high out-coupled power of 600 μW, directly usable for spectroscopy, at a wavelength of 97 nm. This corresponds to a >60% out-coupling efficiency. The XUV power scaling and generation efficiency are similar to that achieved with a single Gaussian-mode fundamental beam inside a collinear enhancement cavity. The noncollinear geometry also opens the door for the generation of isolated attosecond pulses at >100 MHz repetition rate.
description: 13 pages, 5 figures
Summaries of Group Discussion
Creators: name: Sbah, S. L.
name: Thingalaya, N. K.
name: Vaidyanathan, A.
name: Sbah, S. L.
name: Thingalaya, N. K.
name: Vaidyanathan, A.
Publisher: name: Unknown
Year: 1979
Subjects: Agricultural and Food Policy

description: Subject I: Farming Systems in Hill Areas Subject II: Rural Credit: Structure and Flows Subject III: Identification, Appraisal and Evaluation of Agricultural Projects