cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Geodesic motion around a supersymmetric AdS5 black hole
Creators: name: Drawer, Jens-Christian
name: Grunau, Saskia
Publisher: name: arXiv
Year: 2020
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: In this article the geodesic motion of test particles in the spacetime of a supersymmetric AdS$_5$ black hole is studied. The equations of motion are derived and solved in terms of the Weierstrass $\wp$, $σ$ and $ζ$ functions. Effective potentials and parametric diagrams are used to analyze and characterize timelike, lightlike and spacelike particle motion and a list of possible orbit types is given. Furthermore, various plots of orbits are presented.
description: 15 pages, 13 figures
Additional file 1 of BANDITS: Bayesian differential splicing accounting for sample-to-sample variability and mapping uncertainty
Creators: name: Tiberi, Simone
name: Robinson, Mark D.
Publisher: name: figshare
Year: 2020
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 1 Methodological details, additional tables and figures.
New insights on Assisted Reproductive Technologies
Creators: name: Amrita A. Vasava1 & Pankaj A. Patel2
Publisher: name: The Science world a Monthly e magazine
Year: 2024

description: The livestock industry is one of the fastest-growing sectors of the economy, accounting in agricultural GDP and providing a significant portion of the nation's dairy farmers' income. In order to provide farmers with the highest possible profits, dairy animals need to be robust and healthy throughout their lives in order for this industry to flourish.

          Advancement in farm animal reproduction has been increasingly dependent on advance scientific research besides to an understanding of the physiological processes involved in reproduction. Reproductive physiology has come a long way in recent years, but infertility brought on by low conception rates and high embryonic mortality rates still poses a serious challenge. The use of assisted reproductive techniques (ART) has helped owners to produce offspring from valuable farm animals that were considered infertile using standard breeding techniques. However, rather than growing the number of animal herds in order to achieve high quality and quantity output, there is a growing need to develop animals with high genetic potential in order to boost the productivity of animal units.
Environmental and institutional factors and strategies of response in electrical and computer engineering departments at research and doctorate universities in the United States and their association to international graduate enrollment
Creators: name: Tsoumpa, Adamantia
Publisher: name: American University
Year: 2023

description: The electrical and computer engineering (ECE) academic field is among the top fields in the U.S. that can claim predominance in international graduate student participation. This study hypothesizes that academic ECE departments in the U.S. depend on international graduate enrollment for their operation, and that such departments and their parent institutions have strategies in place to manage the uncertainties of changing enrollment. Thus, it is the percent of international graduate enrollment that is considered as the dependent variable, while environmental factors, institutional characteristics, and response strategies followed by individual institutions and ECE academic programs play the role of independent variables. The objectives are: (1) to explore categories of environmental characteristics related to international graduate enrollment fluctuations in electrical and computer engineering departments from 1982 through 2003; (2) to explore whether and to what extent, institutional characteristics influence the departmental strategies to manage international graduate enrollment. Following regression analysis of survey results and follow-up phone interviews with administrators and ECE department chairs from selected research universities, some of the findings of the study are: (1) Growth of graduate enrollment has slowed and the change of the niche in the environment of the ECE field-caused by developments in Asian higher education, paradigm shifts in the electrical engineering field, and uncertain future employment estimates-has alarmed ECE chairs and administrators responsible for international student issues in the institutions examined in the study; (2) response to changing enrollment is subject to departmental discretion and is not the outcome of a concerted action among administrative units; (3) the most popular strategies for controlling international graduate ECE enrollment is the collaboration of U.S. ECE departments with specific "feeder" institutions in developing countries.
Generalised Connections and Curvature
Creators: name: Kunzinger, Michael
name: Steinbauer, Roland
name: Vickers, James A.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Functional Analysis (math.FA)
subject: FOS: Mathematics
subject: 46T30; 46F30, 53B20

description: The concept of generalised (in the sense of Colombeau) connection on a principal fibre bundle is introduced. This definition is then used to extend results concerning the geometry of principal fibre bundles to those that only have a generalised connection. Some applications to singular solutions of Yang-Mills theory are given.
description: 29 pages, added a result on generalized de Rham cohomology (Prop. 8.2)
Additional file 13 of Culicoides species composition and molecular identification of host blood meals at two zoos in the UK
Creators: name: England, Marion E.
name: Pearce-Kelly, Paul
name: Brugman, Victor A.
name: King, Simon
name: Gubbins, Simon
name: Sach, Fiona
name: Sanders, Christopher J.
name: Masters, Nic J.
name: Denison, Eric
name: Carpenter, Simon
Publisher: name: figshare
Year: 2020
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 13: Figure S6. Observed and expected daily trap catches for total Culicoides for trap locations at both zoos.
Change the air temperature changes at three agro-ecological zones of Bangladesh
Creators: name: Isalm, A. K. M. R.
name: Ali, M. H.
name: Amin, M. G. M.
name: Isalm, A. K. M. R.
name: Ali, M. H.
name: Amin, M. G. M.
Publisher: name: Unknown
Year: 2006
Subjects: subject: Environmental Economics and Policy
subject: Productivity Analysis
subject: Temperature trend
subject: Climate change
subject: Non-parametric test
subject: Regression analysis
subject: Agricultural practice
subject: Bangladesh

description: Climate can be one of the biggest risk factors impacting agricultural systems performance and management. In order to managing agricultural production systems, maintain or increase economic returns and decrease environmental impacts, understanding of these changes and detailed examination of the modes of climate change at ground level and at smaller temporal and spatial scale are of crucial need. The trend of monthly maximum and minimum temperatures at three agro-ecological zones of Bangladesh: lshurdi, Comilla and Satkhira regions were investigated to obse'rve whether there has been any discernible change. Analyses showed the evidence of a changing pattern of both maximum and minimum temperatures at all the stations. Monthly maximum showed warming (increasing) trend at all stations, and the minimum temperature showed both cooling(decreasing) and warming trend. The study also showed that the temperature trends are not consistent throughout the year and also among stations.
Environmental and institutional factors and strategies of response in electrical and computer engineering departments at research and doctorate universities in the United States and their association to international graduate enrollment
Creators: name: Tsoumpa, Adamantia
Publisher: name: ProQuest
Year: 2023
Subjects: classificationCode: 39
subject: Education
classificationCode: 3903
subject: Education systems
classificationCode: 3904
subject: Specialist studies in education

description: The electrical and computer engineering (ECE) academic field is among the top fields in the U.S. that can claim predominance in international graduate student participation. This study hypothesizes that academic ECE departments in the U.S. depend on international graduate enrollment for their operation, and that such departments and their parent institutions have strategies in place to manage the uncertainties of changing enrollment. Thus, it is the percent of international graduate enrollment that is considered as the dependent variable, while environmental factors, institutional characteristics, and response strategies followed by individual institutions and ECE academic programs play the role of independent variables. The objectives are: (1) to explore categories of environmental characteristics related to international graduate enrollment fluctuations in electrical and computer engineering departments from 1982 through 2003; (2) to explore whether and to what extent, institutional characteristics influence the departmental strategies to manage international graduate enrollment. Following regression analysis of survey results and follow-up phone interviews with administrators and ECE department chairs from selected research universities, some of the findings of the study are: (1) Growth of graduate enrollment has slowed and the change of the niche in the environment of the ECE field-caused by developments in Asian higher education, paradigm shifts in the electrical engineering field, and uncertain future employment estimates-has alarmed ECE chairs and administrators responsible for international student issues in the institutions examined in the study; (2) response to changing enrollment is subject to departmental discretion and is not the outcome of a concerted action among administrative units; (3) the most popular strategies for controlling international graduate ECE enrollment is the collaboration of U.S. ECE departments with specific "feeder" institutions in developing countries.
Grouping of ants in solving large traveling salesman problems
Creators: name: Hassan, M. R.
name: Hasan, M. K.
name: Hashem, M. M. A.
name: Hassan, M. R.
name: Hasan, M. K.
name: Hashem, M. M. A.
Publisher: name: Unknown
Year: 2006
Subjects: subject: Agricultural and Food Policy
subject: Research and Development/Tech Change/Emerging Technologies
subject: Ant Colony System(ACS)
subject: Swarm Intelligence
subject: Traveling Salesman Problem(TSP)

description: Solving ..large traveling salesman problem (TSP) in an efficient way is a challenging area for the researchers of computer science. This paper presents a modified version of the ant colony system (ACS)-algorithm called Red-Black Ant Colony System (RB-ACS) for the solutions of TSP which is the most prominent member of the combinatorial optimization problem. RB-ACS uses the concept of ant colony system together with the parallel.search of genetic algorithm for obtaining the optimal solutions quickly. In this paper, it is shown that the proposed RB-ACS algorithm yields significantly better Performance than the existing best-known algorithms like genetic algorithm, simulated annealing, tabu search, evolution strategy, etc.
On the ballistic transport in nanometer-scaled double-gate MOSFET
Creators: name: Martin, J. Saint
name: Bournel, A.
name: Dollfus, P.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: The scattering effects are studied in nanometer-scaled double-gate MOSFET, using Monte Carlo simulation. The non-equilibrium transport in the channel is analyzed with the help of the spectroscopy of the number of scatterings experienced by electrons. We show that the number of ballistic electrons at the drain end, even in terms of flux, is not the only relevant characteristic of ballistic transport. Then the drive current in the 15 nm-long channel transistor generations should be very close to the value obtained in the ballistic limit even if all electrons are not ballistic. Additionally, most back-scattering events which deteriorates the ON current, take place in the first half of the channel and in particular in the first low field region. However, the contribution of the second half of the channel can not be considered as negligible in any studied case i.e. for a channel length below 25 nm. Furthermore, the contribution of the second half of the channel tends to be more important as the channel length is reduced. So, in ultra short channel transistors, it becomes very difficult to extract a region of the channel which itself determine the drive current Ion.
description: 27 pages, 13 figures, submitted to IEEE Trans. Electron. Dev., corrected typos, conclusions clarified, less meaningful figures suppressed
Common interests vs. self interests: Global environment public goods provision
Creators: name: Wang, Hairong
Publisher: name: American University
Year: 2023

description: Collective action is frequently compromised by free riding. One salient nature of environmental problems is that the social cost of pollution exceeds the private cost. Thus, private sectors do not have sufficient incentives to tackle pollution. Pollution is usually regulated by governments. Transboundary pollution, however, poses new challenges to environmental regulation. In absence of an overarching authority, any country can free ride on others' pollution abatement efforts. In face of global problems, how do countries balance the common interests of humankind with their national interests?; This study examines voluntary provision of global public goods in the case of global warming. After surveying theoretical models on collective action and previous empirical literatures on voluntary abatement of global pollution, the study demonstrates, with an empirical model, that free riding still inhibits voluntary mitigation of global warming values on public goods provision. The study reveals that their different attitudes toward global warming are rooted more in the difference in payoffs from global warming mitigation than in social values or institution framework.
An investigation on strength and economy of cement- Plastered bamboo-mat as fence of rural houses
Creators: name: Abedin, M. Z.
name: Rahman, M. Z.
name: Jalal, M. S.
name: Abedin, M. Z.
name: Rahman, M. Z.
name: Jalal, M. S.
Publisher: name: Unknown
Year: 2006
Subjects: subject: Community/Rural/Urban Development
subject: Production Economics
subject: Cement-plastered
subject: Bamboo-made fence
subject: Low-cost
subject: Rural houses

description: This study explores the feasibility of using cement-plastered bamboo-mat as fence of rural houses. The strength properties of three common species of bamboo Borak, Moroi and Jay were determined using its Splits as test specimen. The fence slabs of size 90x30x5 cm were fabricated with coal-tar coated fenceskeletons made from splits of the three bamboo species having rectangular cross-sections of about 1.3x10 mm and cement mortar of ratio 1:4, 1:5 and 1:6. The load bearing capacity and the structural rigidity of the prototype fence slabs were determined against flexural and impact loadings. The load carrying capacity of the model fence slabs were evaluated in terms of the thrust resulting from devastating wind speed of 300 km/hr beyond great danger signal No.10 of weather forecast. The structural rigidity of the model fences were characterised in terms of its resistance against the dropping,:heights of impact loading. The unit construction costs of fence slabs were estimated. The qualitativb :evaluation of the bamboo-made fence in respect of construction cost, load bearing capacity, rigidity against impact load and factor of safety characterised a structurally strong and functional low cost fences suitable for flood prone and cyclone battered areas of rural Bangladesh.
Stability of Naked Singularity arising in gravitational collapse of Type I matter fields
Creators: name: Sarwe, Sanjay B.
name: Saraykar, R. V.
Publisher: name: arXiv
Year: 2003
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Considering gravitational collapse of Type I matter fields, we prove that, given an arbitrary $C^{2}$- mass function $\textit{M}(r,v)$ and a $C^{1}$- function $h(r,v)$ (through the corresponding $C^{1}$- metric function $ν(t,r)$), there exist infinitely many choices of energy distribution function $b(r)$ such that the `true' initial data ($\textit{M},h(r,v)$) leads the collapse to the formation of naked singularity. We further prove that the occurrence of such a naked singularity is stable with respect to small changes in the initial data. We remark that though the initial data leading to both black hole and naked singularity form a "big" subset of the true initial data set, their occurrence is not generic. The terms `stability' and `genericity' are appropriately defined following the theory of dynamical systems. The particular case of radial pressure $p_{r}(r)$ has been illustrated in details to get clear picture of how naked singularity is formed and how, it is stable with respect to initial data.
description: 16 pages, no figure, Latex, submitted to Pramana
Processing of value added food products from selected lowcost indigenous fruits of Bangladesh
Creators: name: Uddin, M. B.
name: Chowdhury, M. R. M.
name: Uddin, M. B.
name: Chowdhury, M. R. M.
Publisher: name: Unknown
Year: 2006
Subjects: subject: Crop Production/Industries
subject: Food Consumption/Nutrition/Food Safety
subject: Jam
subject: Jelly
subject: Squash
subject: Nectar
subject: Pickles
subject: Chutney
subject: Preserves
subject: Candies
subject: Toffee
subject: Shelflife
subject: Sensory evaluation

description: This study reports on processing of some food products such as jam, jelly, squash, nectar, pickles, chutney, preserves, candies, and toffee from selected indigenous fruits. Jelly and jam were processed from carambola (star fruit)), wood apple, elephant apple, and wax jumbo (jamrul); squash, nectar, and toffee from wood apple; preserves and candies from wax jumbo and carambola; pickles from elephant apple and carambola and chutney from elephant apple respectively. The fruits and the developed Products were analysed for proximate composition. Keepin quality of the processed products were evaluated at an ambient temperature (27 — 32°C). The acidity, colour, flavour and texture and microbial growth were observed initially at an interval of one month up .to two months and then at an interval of two months until the products spoiled. The products were shelf stable up to 12 months with the exception that jam, jelly, pickles and candies having shelf life more than 12 months: The consumer acceptability of all the products developed was satisfactory.
Particle abundances and spectra in the hydrodynamical description of relativistic nuclear collisions with light projectiles
Creators: name: Grassi, F.
name: Hama, Y.
name: Kodama, T.
name: Socolowski, O.
Publisher: name: arXiv
Year: 2003
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We show that a hydrodynamical model with continuous particle emission instead of sudden freeze out may explain both the observed strange particle and pion abundances and transverse mass spectra for light projectile at SPS energy. We found that the observed enhancement of pion production corresponds, within the context of continuous emission, to the maximal entropy production.
description: 11 pages, 2 figures
Common interests vs. self interests: Global environment public goods provision
Creators: name: Wang, Hairong
Publisher: name: ProQuest
Year: 2023
Subjects: classificationCode: 44
subject: Human society
classificationCode: 4407
subject: Policy and administration

description: Collective action is frequently compromised by free riding. One salient nature of environmental problems is that the social cost of pollution exceeds the private cost. Thus, private sectors do not have sufficient incentives to tackle pollution. Pollution is usually regulated by governments. Transboundary pollution, however, poses new challenges to environmental regulation. In absence of an overarching authority, any country can free ride on others' pollution abatement efforts. In face of global problems, how do countries balance the common interests of humankind with their national interests?; This study examines voluntary provision of global public goods in the case of global warming. After surveying theoretical models on collective action and previous empirical literatures on voluntary abatement of global pollution, the study demonstrates, with an empirical model, that free riding still inhibits voluntary mitigation of global warming values on public goods provision. The study reveals that their different attitudes toward global warming are rooted more in the difference in payoffs from global warming mitigation than in social values or institution framework.
A Hybrid High-Order method for creeping flows of non-Newtonian fluids
Creators: name: Botti, Michele
name: Quiroz, Daniel Castanon
name: Di Pietro, Daniele A.
name: Harnist, André
Publisher: name: arXiv
Year: 2020
Subjects: subject: Numerical Analysis (math.NA)
subject: FOS: Mathematics
subject: 65N08, 65N30, 65N12, 35Q30, 76D05

description: In this paper, we design and analyze a Hybrid High-Order discretization method for the steady motion of non-Newtonian, incompressible fluids in the Stokes approximation of small velocities. The proposed method has several appealing features including the support of general meshes and high-order, unconditional inf-sup stability, and orders of convergence that match those obtained for scalar Leray-Lions problems. A complete well-posedness and convergence analysis of the method is carried out under new, general assumptions on the strain rate-shear stress law, which encompass several common examples such as the power-law and Carreau-Yasuda models. Numerical examples complete the exposition.
description: 28 pages, 4 figures
Social Interventions, Child Health and Anthropometric Outcomes in Southern Ghana
Creators: name: Okyere, C.Y.
name: Okyere, C.Y.
Publisher: name: Unknown
Year: 2018
Subjects: Health Economics and Policy

description: Health and nutrition are important ingredients in the measurement of welfare at both micro and macro levels such as poverty reduction, human capital formation and economic growth. In this study, I estimate the interaction effects of two social interventions, namely National Health Insurance Scheme (NHIS) and Ghana School Feeding Program (GSFP), on child health and nutrition status in southern Ghana using random effects and multivalued treatment effects estimators. The results from the multivalued treatment effects estimator show that there are relative and multiple overlapping treatment effects of NHIS and GSFP on long run nutrition status of children. No similar positive effects are found on the short run nutrition status. The random effects estimates are consistent with the multivalued treatment effects estimates of negative relationship between NHIS only on children s short run nutrition status. The estimates are quite stable across various sensitivity analyses including alternative estimation strategies. The estimates suggest that the effects of social interventions on child health and nutrition outcomes may depend on the choice of estimation strategy and outcome variables. Acknowledgement : Data from the AG-WATSAN Project undertaken by Center for Development Research (ZEF), University of Bonn, Germany is duly acknowledged.
The effects of business cycle indicators on stock market indices of food industry in Iran
Creators: name: Mohammadi, H.
name: Abolhasani, L.
name: Shahnoushi, N.
name: Shabanian, F.
name: Mohammadi, H.
name: Abolhasani, L.
name: Shahnoushi, N.
name: Shabanian, F.
Publisher: name: Unknown
Year: 2018
Subjects: Agribusiness

description: This paper investigates the effects of the business cycle indicators on stock market indices of food industry companies in Iran stock market. Using dynamic panel and Panel VAR methods for seasonal data of 2001-2015, the results show that the effect of GDP and agricultural value-added as indicators of business cycle on stock market indices of sales volume, price index, net profit and stock return are positive. The results of panel VAR models also show that the shocks entered by GDP and agricultural value ?added have a different effect on stock market indices of sales volume, price index, net profit and ?stock return. Due to the positive effects of the business cycles indicators on the stock market indices of food industry companies, it is recommended that policy-makers consider strategies to increase GDP and agriculture value-added. Acknowledgement : I am attaching herewith a manuscript entitled ?The Impacts of Business Cycle Indicators on Stock Market Indices of Food Industry for the 30th international conference of agricultural economics. With the submission of this manuscript, I would like to undertake that the above-mentioned manuscript has not been published elsewhere, accepted for publication elsewhere or under editorial review for publication elsewhere. Please don't hesitate to contact me for further information. Thanks in advance for your time and consideration. Sincerely Hosein Mohammadi, Associate Professor of Agricultural Economics Ferdowsi University of Mashhad, Iran
Half-Gain Tuning for Active Disturbance Rejection Control
Creators: name: Herbst, Gernot
name: Hempel, Arne-Jens
name: Göhrt, Thomas
name: Streif, Stefan
Publisher: name: arXiv
Year: 2020
Subjects: subject: Systems and Control (eess.SY)
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: A new tuning rule is introduced for linear active disturbance rejection control (ADRC), which results in similar closed-loop dynamics as the commonly employed bandwidth parameterization design, but with lower feedback gains. In this manner the noise sensitivity of the controller is reduced, paving the way for using ADRC in more noise-affected applications. It is proved that the proposed tuning gains, while rooted in the analytical solution of an algebraic Riccati equation, can always be obtained from a bandwidth parameterization design by simply halving the gains. This establishes a link between optimal control and pole placement design.
Willingness to Pay and Willingness to Accept for Farmland Leasing and Custom Farming in Taiwan
Creators: name: Chang, T.
name: Takahashi, D.
name: Chang, T.
name: Takahashi, D.
Publisher: name: Unknown
Year: 2018
Subjects: Land Economics/Use

description: The objective of this study is to analyze and compare the valuation of farmer participation in the farmland leasing market and the custom-farming services market. This study analyzes surveys on 301 rice farmers in Taiwan in 2014 using the contingent valuation method to analyze the willingness to pay and willingness to accept of both markets. The empirical analysis indicated that factors of greater significance causing reduced the WTA for lending farmland, which can reduce supply in the farmland-leasing market include the expectation of farmland diversion, and the existence of transaction costs in the farmland lending market. The analysis also indicates that an increase in the WTA price for lending farmland was a primary factor for the increase in the WTP for custom-farming services, which indicates that the vibrant growth of the custom-farming services market in Taiwan is affected by the WTA farmland lending. The findings show that development of the custom-farming services market cannot be expected to lead to greater farmland liquidation. Acknowledgement :
On -site day care centers: Determining the effects on employee organizational attachment and the resulting impact on firm productivity
Creators: name: Sherbin, Laura
Publisher: name: American University
Year: 2023

description: The first contribution of this dissertation is to incorporate employee benefits into the Principal Agent model. From this illustration it is shown that productivity increases from on-site child care centers come from two avenues: by lessening the burdens workers experience, allowing them to be more productive at work, and by increasing the cost to a worker of getting fired. It is also shown that the productivity gain that results from the increased punishment of being fired is contingent upon the benefit not being widespread. To ensure that productivity gains persist as the benefit becomes more common, I show that they are a result of reductions in the degree of work/family conflict experienced by workers. Additional analysis at the worker level finds that workers who have day care programs are less likely to quit their jobs. At the firm level, I find that firms offering their employees a day care program have harder working workers than firms failing to offer the benefit. To further support the claim that that productivity gains persist as the benefit becomes more common aggregate analyses are conducted at the industry and area level. Industries where the benefit is offered have higher levels of labor productivity and labor productivity growth than industries in which no firms offer the benefit. Similarly, states in which the benefit is offered have higher per capita growth in Gross State Product and levels of per capita Gross State Product. Lastly, to link family friendly benefits to a direct measure of productivity, I extend the analysis to an additional data source. The Working Mother's 2006 list of 100 Best Companies is compared to a constructed list of control firms using propensity score matching. I show that return on equity is 6.99% higher for the Working Mother firms. Overall, this research shows that there are substantial benefits to a firm and its employees from offering employees a day care program that should persist as the benefit increases in popularity.
Galaxy Cold Gas Contents in Modern Cosmological Hydrodynamic Simulations
Creators: name: Davé, Romeel
name: Crain, Robert A.
name: Stevens, Adam R. H.
name: Narayanan, Desika
name: Saintonge, Amelie
name: Catinella, Barbara
name: Cortese, Luca
Publisher: name: arXiv
Year: 2020
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We present a comparison of galaxy atomic and molecular gas properties in three recent cosmological hydrodynamic simulations, Simba, EAGLE, and Illustris-TNG, versus observations from $z\sim 0-2$. These simulations all rely on similar sub-resolution prescriptions to model cold interstellar gas which they cannot represent directly, and qualitatively reproduce the observed $z\approx 0$ HI and H$_2$ mass functions (HIMF, H2MF), CO(1-0) luminosity functions (COLF), and gas scaling relations versus stellar mass, specific star formation rate, and stellar surface density $μ_*$, with some quantitative differences. To compare to the COLF, we apply an H$_2$-to-CO conversion factor to the simulated galaxies based on their average molecular surface density and metallicity, yielding substantial variations in $α_{\rm CO}$ and significant differences between models. Using this, predicted $z=0$ COLFs agree better with data than predicted H2MFs. Out to $z\sim 2$, EAGLE's and Simba's HIMF and COLF strongly increase, while TNG's HIMF declines and COLF evolves slowly. EAGLE and Simba reproduce high $L_{\rm CO1-0}$ galaxies at $z\sim 1-2$ as observed, owing partly to a median $α_{\rm CO}(z=2)\sim 1$ versus $α_{\rm CO}(z=0)\sim 3$. Examining \HI, H$_2$, and CO scaling relations, their trends with $M_*$ are broadly reproduced in all models, but EAGLE yields too little HI in green valley galaxies, TNG and Simba overproduce cold gas in massive galaxies, and Simba overproduces molecular gas in small systems. Using Simba variants that exclude individual AGN feedback modules, we find that Simba's AGN jet feedback is primarily responsible by lowering cold gas contents from $z\sim 1\to0$ by suppressing cold gas in $M_*> 10^{10}{\rm M}_\odot$ galaxies, while X-ray feedback suppresses the formation of high-$μ_*$ systems.
description: 22 pages, MNRAS accepted
Agapostemon (Notagapostemon) nasutus Smith 1853
Creators: name: Pedro, Diego De
name: Ceccarelli, Fadia Sara
name: Sagot, Philippe
name: López-Reyes, Eulogio
name: Mullins, Jessica L.
name: Mérida-Rivas, Jorge A.
name: Falcon-Brindis, Armando
name: Griswold, Terry
name: Ascher, John S.
name: Gardner, Joel
name: Ayala, Ricardo
name: Vides-Borrell, Eric
name: Vandame, Rémy
Publisher: name: Zenodo
Year: 2024
Subjects: Biodiversity
Taxonomy

description: Agapostemon (Notagapostemon) nasutus Smith, 1853
[Type: NHMUK; ♂ Mexico]
Within the BCP, Agapostemon nasutus occurs in southern BCS. It has been previously reported in the Gulf Coast and the Sarcocaulescent Shrubland with preserved specimens records in BBSL, EMEB, SEMC, TAMU (GBIF 2023). We reviewed 15 specimens (13 ♂, 2 ♀) collected in the Gulf Coast and Sarcocaulescent Shrubland vouchered in CASC (Supplementary material 1). Additionally, the CARCIB team collected three specimens, one male in the Sarcocaulescent Shrubland in October 2014, one female in the Gulf Coast in October 2017, one male in the Magdalena Plains in May 2019. See fig. 169.
description: Published as part of Pedro, Diego De, Ceccarelli, Fadia Sara, Sagot, Philippe, López-Reyes, Eulogio, Mullins, Jessica L., Mérida-Rivas, Jorge A., Falcon-Brindis, Armando, Griswold, Terry, Ascher, John S., Gardner, Joel, Ayala, Ricardo, Vides-Borrell, Eric & Vandame, Rémy, 2024, Revealing the Baja California Peninsula's Hidden Treasures: An Annotated checklist of the native bees (Hymenoptera: Apoidea: Anthophila), pp. 1-391 in Zootaxa 5522 (1) on page 250, DOI: 10.11646/zootaxa.5522.1.1, http://zenodo.org/record/13920532
Modeling the gravitational wave signature of neutron star black hole coalescences: PhenomNSBH
Creators: name: Thompson, Jonathan E.
name: Fauchon-Jones, Edward
name: Khan, Sebastian
name: Nitoglia, Elisa
name: Pannarale, Francesco
name: Dietrich, Tim
name: Hannam, Mark
Publisher: name: arXiv
Year: 2020
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Accurate gravitational-wave (GW) signal models exist for black hole binary (BBH) and neutron-star binary (BNS) systems, which are consistent with all of the published GW observations to date. Detections of a third class of compact-binary systems, neutron-star black hole (NSBH) binaries, have not yet been confirmed, but are eagerly awaited in the near future. For NSBH systems, GW models do not exist across the viable parameter space of signals. In this work we present the frequency-domain phenomenological model, PhenomNSBH, for GWs produced by NSBH systems with mass ratios from equal-mass up to 15, spin on the black hole up to a dimensionless spin of $|χ|=0.5$, and tidal deformabilities ranging from 0 (the BBH limit) to 5000. We extend previous work on a phenomenological amplitude model for NSBH systems to produce an amplitude model that is parameterized by a single tidal deformability parameter. This amplitude model is combined with an analytic phase model describing tidal corrections. The resulting approximant is compared to publicly-available NSBH numerical-relativity simulations and hybrid waveforms constructed from numerical-relativity simulations and tidal inspiral approximants. For most signals observed by second-generation ground-based detectors, it will be difficult to use the GW signal alone to distinguish single NSBH systems from either BNSs or BBHs, and therefore to unambiguously identify an NSBH system.
description: 12 pages, 5 figures
Galactic structure studies with BATC star counts
Creators: name: Du, Cuihua
name: Zhou, Xu
name: Ma, Jun
name: Chen, Alfred B-C
name: Yang, Yanbin
name: Li, Jiuli
name: Wu, Hong
name: Jiang, Zhaoji
name: Chen, Jiansheng
Publisher: name: arXiv
Year: 2003
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We report the first results of star counts carried out with the National Astronomical Observatories (NAOC) 60/90 cm Schmidt Telescope in 15 intermediate-band filters from 3000 to 10000 Å in the BATC survey. We analyze a sample of over 1400 main sequence stars ($14\le$V$\le21$), which lie in the field with central coordinates R.A.=$09^h53^m13^s.30$ and DEC=47$^\circ49^{\prime}00^{\prime\prime}.0$ (J2000). The field of view is 0.95 deg$^{2}$, and the spatial scale was $1\arcsec.67$. In our model, the distribution of stars perpendicular to the plane of the Galaxy is given by two exponential disks (thin disk plus thick disk) and a de Vaucouleurs halo. Based on star counts, we derive the scale heights of the thin disk to be $320^{+14}_{-15}$ pc and of the thick disk to be $640^{+30}_{-32}$ pc, respectively, with a local density of $7.0\pm1%$ of the thin disk. We find that the observed counts support an axial ratio of $c/a\le0.6$ for a de Vaucouleurs $r^{1/4}$ law, implying a more flattened halo. We also derive the stellar luminosity function (SLF) for the thin disk, and it partly agrees with the Hipparcos luminosity function.
description: 17pages,9 figures
Impacts of a NoCAP Scenario on Sub-Saharan Africa
Creators: name: Boulanger, P.
name: Dudu, H.
name: Ferrari, E.
name: M'Barek, R.
name: Philippidis, G.
name: Boulanger, P.
name: Dudu, H.
name: Ferrari, E.
name: M'Barek, R.
name: Philippidis, G.
Publisher: name: Unknown
Year: 2018
Subjects: Agricultural and Food Policy

description: This paper provides a model-based impact analysis of the Common Agricultural Policy (CAP) on the four main regional blocks in Sub-Saharan Africa (SSA). It uses the Modular Agricultural GeNeral Equilibrium Tool (MAGNET), a multi-region computable general equilibrium model. To provide a comprehensive analysis, other key EU policies, such as trade or GHG policies, are modelled as well. A thoroughly prepared reference scenario is contrasted with a counterfactual scenario, where the CAP is removed and ambitious trade agreements with non-African EU trade partners are implemented. Results provide interesting insights into the identification and quantification of - mainly indirect - effects of the CAP in SSA. Acknowledgement :
A systematic construction of gapped non-liquid states
Creators: name: Wen, Xiao-Gang
Publisher: name: arXiv
Year: 2020
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Gapped non-liquid state (also known as fracton state) is a very special gapped quantum state of matter that is characterized by a microscopic cellular structure. Such microscopic cellular structure has a macroscopic effect at arbitrary long distances and cannot be removed by renormalization group flow, which makes gapped non-liquid state beyond the description of topological quantum field theory with a finite number of fields. Using Abelian and non-Abelian topological orders in 2-dimensional (2d) space and the different ways to glue them together via their gapped boundaries, we propose a systematic way to construct 3d gapped states (and in other dimensions). The resulting states are called cellular topological states, which include gapped non-liquid states, as well as gapped liquid states in some special cases. Some new fracton states with fractal excitations are constructed even using 2d $\mathbb{Z}_2$ topological order. More general cellular topological states can be constructed by connecting 2d domain walls between different 3d topological orders. The constructed cellular topological states can be viewed as fixed-point states for a reverse renormalization of gapped non-liquid states.
description: 11 pages, 14 figures
On -site day care centers: Determining the effects on employee organizational attachment and the resulting impact on firm productivity
Creators: name: Sherbin, Laura
Publisher: name: ProQuest
Year: 2023
Subjects: classificationCode: 38
subject: Economics

description: The first contribution of this dissertation is to incorporate employee benefits into the Principal Agent model. From this illustration it is shown that productivity increases from on-site child care centers come from two avenues: by lessening the burdens workers experience, allowing them to be more productive at work, and by increasing the cost to a worker of getting fired. It is also shown that the productivity gain that results from the increased punishment of being fired is contingent upon the benefit not being widespread. To ensure that productivity gains persist as the benefit becomes more common, I show that they are a result of reductions in the degree of work/family conflict experienced by workers. Additional analysis at the worker level finds that workers who have day care programs are less likely to quit their jobs. At the firm level, I find that firms offering their employees a day care program have harder working workers than firms failing to offer the benefit. To further support the claim that that productivity gains persist as the benefit becomes more common aggregate analyses are conducted at the industry and area level. Industries where the benefit is offered have higher levels of labor productivity and labor productivity growth than industries in which no firms offer the benefit. Similarly, states in which the benefit is offered have higher per capita growth in Gross State Product and levels of per capita Gross State Product. Lastly, to link family friendly benefits to a direct measure of productivity, I extend the analysis to an additional data source. The Working Mother's 2006 list of 100 Best Companies is compared to a constructed list of control firms using propensity score matching. I show that return on equity is 6.99% higher for the Working Mother firms. Overall, this research shows that there are substantial benefits to a firm and its employees from offering employees a day care program that should persist as the benefit increases in popularity.
Three essays on the indirect impacts of conditional cash transfer programs in Mexico and Nicaragua
Creators: name: Todd, Jessica Erin
Publisher: name: ProQuest
Year: 2023
Subjects: classificationCode: 38
subject: Economics

description: This dissertation contributes to the evaluation of Conditional Cash Transfer (CCT) programs by estimating indirect impacts of the Oportunidades and RPS programs in rural Mexico and Nicaragua, respectively, using experimentally designed data. The first essay estimates the impact of early nutrition intervention in the Oportunidades program on the probability of enrolling in primary school on time. Identification is achieved through a cross-sectional double difference estimator on observations from two cohorts of children. Although the results are not strongly significant, they do indicate that early nutritional interventions can have a positive impact on school outcomes and that care giver characteristics affect the magnitude of the impact. The results also highlight that a first difference estimate of the impact would be downwardly biased by unobserved differences in characteristics. The second essay examines the impact of the RPS program on an intermediate fertility outcome, birth spacing, using a stratified Cox proportional hazard model. Birth histories of female household heads and spouses are constructed from household roster information, and to deal with autocorrelation, the data are stratified by parity (the number of live births). The results indicate that the RPS program decreased the hazard of a birth, which resulted in an increase in the space between births of between 6 to 8 months. Further research is required to determine whether the impacts will persist in the long-run. The final essay explores whether the Oportunidades program relaxes liquidity constraints and can lead to increased agricultural production; this is explored by estimating the impact of the program on consumption of food from own production as well as on land use, livestock ownership and spending on agricultural crop production. Impacts estimated using first difference estimators are compared to those from weighted estimators in which the weights are constructed from propensity scores. The program is found to increase the value and variety of food consumed from own production; no differences in the two estimators are observed. In addition, small positive impacts on land use, livestock ownership and crop spending are observed. The implication of these findings is that part of the cash received is invested in agricultural production.
Constraining the X-ray Luminosities of Asymptotic Giant Branch Stars: TX Cam and T Cas
Creators: name: Kastner, Joel H.
name: Soker, Noam
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: To probe the magnetic activity levels of asymptotic giant branch (AGB) stars, we used XMM-Newton to search for X-ray emission from two well-studied objects, TX Cam and T Cas. The former star displays polarized maser emission indicating magnetic field strengths of B ~ 5 G; the latter is one of the nearest known AGB stars. Neither star was detected by XMM-Newton. We use the upper limits on EPIC (CCD detector) count rates to constrain the X-ray luminosities of these stars, and derive L_X < 10^{31} erg s^{-1} (<10^{30} erg s^{-1}) for an assumed X-ray emission temperature T_X = 3x10^6 K (10^7 K). These limits represent
description: 12 pages, 1 figure; submitted to the Astrophysical Journal
Impact of sharing full versus averaged social information on social influence and estimation accuracy
Creators: name: Jayles, Bertrand
name: Sire, Clément
name: Kurvers, Ralf H. J. M
Publisher: name: arXiv
Year: 2020
Subjects: subject: Physics and Society (physics.soc-ph)
subject: Social and Information Networks (cs.SI)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: The recent developments of social networks and recommender systems have dramatically increased the amount of social information shared in human communities, challenging the human ability to process it. As a result, sharing aggregated forms of social information is becoming increasingly popular. However, it is unknown whether sharing aggregated information improves people's judgments more than sharing the full available information. Here, we compare the performance of groups in estimation tasks when social information is fully shared versus when it is first averaged and then shared. We find that improvements in estimation accuracy are comparable in both cases. However, our results reveal important differences in subjects' behaviour: (i) subjects follow the social information more when receiving an average than when receiving all estimates, and this effect increases with the number of estimates underlying the average; (ii) subjects follow the social information more when it is higher than their personal estimate than when it is lower. This effect is stronger when receiving all estimates than when receiving an average. We introduce a model that sheds light on these effects, and confirms their importance for explaining improvements in estimation accuracy in all treatments.
Simplest equation method to look for exact solutions of nonlinear differential equations
Creators: name: Kudryashov, N. A.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: FOS: Physical sciences

description: New method is presented to look for exact solutions of nonlinear differential equations. Two basic ideas are at the heart of our approach. One of them is to use the general solutions of the simplest nonlinear differential equations. Another idea is to take into consideration all possible singularities of equation studied. Application of our approach to search exact solutions of nonlinear differential equations is discussed in detail. The method is used to look for exact solutions of the Kuramoto - Sivashinsky equation and the equation for description of nonlinear waves in a convective fluid. New exact solitary and periodic waves of these equations are given.
description: 23 pages, 0 figures