cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Benzo[c]chrysene, dibenz[a,j]anthracene, and dibenz[a,h]anthracene diol epoxides: Mutation spectra in S. typhimurium and E. coli CLP systems
Creators: name: Sheko, Bayan Kassim
Publisher: name: American University
Year: 2023

description: Polycyclic aromatic hydrocarbons (PAHs) are ubiquitous environmental pollutants. These pollutants metabolize to reactive dihydrodiol epoxides that react with DNA and cause damages, which may lead to mutations and initiation of tumors. In light of the problems PAHs pose to humans, knowing the mutation spectra of the dihydrodiol epoxides may help to determine if a given PAH contributes to the tumors seen in humans. Toward this end, the mutation spectra of the dihydrodiol isomers of benzo[c]chrysene and dibenz[a,j]anthracene in Salmonella typhimurium strains TA7001-TA7006 and E. coli CLP strains CL 101P-CL106P were determined. The mutation spectra of the dihydrodiol epoxides of dibenz[a,h]anthracene were determined, but only in the E. coli CLP system. In Salmonella, G·C → T·A transversions were the predominant mutations observed for the (+)-anti-B[c]CDE, (+)-syn-B[c]CDE, and (-)-syn-B[c]CDE isomers, whereas G·C → A·T transitions were the predominant mutations found for (-)-anti-B[c]CDE. The predominant mutations in Salmonella for (-)-anti-DB[a,j]ADE, and (+)-syn-DB[a,j]ADE were G·C → T·A transversions, whereas for (+)-anti-DB[a,j]ADE and (-)-syn-DB[a,j]ADE the predominance of G·C → C·G changes were noted. In E. coli, all B[c]CDEs, DB[a,j]ADEs, and DB[a,h]ADEs predominantly induced G·C → T·A transversions. In both bacterial systems, the mutation spectra of B[c]CDEs, DB[a,j]ADEs, and DB[a,h]ADEs showed preferential induction of mutations at G·C base pairs. For B[c]CDEs and DB[a,j]ADEs, for which DNA binding properties and adduct distributions at dG vs dA were known, the results correlated with these diol epoxides' preferences for adduct formation at dG residues in DNA. At A·T base pairs, A·T → T·A transversions were the changes most frequently induced. For the most part, B[c]CDEs, DB[a,j]ADEs, and DB[a,h]ADEs induced G·C → T·A transversions, the type of mutations commonly found in the p53 gene in human tumors. Therefore, given the prevalence of the parent compounds of these diol epoxides in the environment and the known association of other PAHs with p53 mutation in lung cancer, it is conceivable the diol epoxides of B[c]C, DB[a,j]A, and DB[a,h]A contribute to lung cancer in humans.
COMMODITY PROGRAMS AND INFLATION
Creators: name: Penn, J.B.
name: Penn, J.B.
Publisher: name: Unknown
Year: 1979
Subjects: Public Economics

description: Inflation has been identified by many as the nation's number one economic problem. And that makes the theme of this plenary session-- inflation and its pervasiveness in agriculture and the food system-- especially timely. Unfortunately (and perhaps inexcusably), we have woefully little rigorous analysis of the subject to allow comprehensive assessment of impacts. We can, then, hardly be prescriptive. The role of the agricultural commodity programs in the performance of the national economy and their contribution to the persistent inflation is complex. The complexity has grown in this decade with the increased interdependence of'the agricultural sector and the national economy.
Dynamical phase transitions for the activity biased Ising model in a magnetic field
Creators: name: Guioth, Jules
name: Jack, Robert
Publisher: name: arXiv
Year: 2020
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We consider large deviations of the dynamical activity -- defined as the total number of configuration changes within a time interval -- for mean-field and one-dimensional Ising models, in the presence of a magnetic field. We identify several dynamical phase transitions that appear as singularities in the scaled cumulant generating function of the activity. In particular, we find low-activity ferromagnetic states and a novel high-activity phase, with associated first- and second-order phase transitions. The high-activity phase has a negative susceptibility to the magnetic field. In the mean-field case, we analyse the dynamical phase coexistence that occurs on first-order transition lines, including the optimal-control forces that reproduce the relevant large deviations. In the one-dimensional model, we use exact diagonalisation and cloning methods to perform finite-size scaling of the first-order phase transition at non-zero magnetic field.
description: 34 pages, 11 figures, 1 table
Bank runs and deposit insurance in developing countries: The case of Turkey
Creators: name: Yilmaz, Rasim
Publisher: name: American University
Year: 2023

description: The purpose of this dissertation is to address the policies intended to minimize risks and consequences of banking crises and bank runs in developing countries in the context of a developing country, Turkey. The first part of the study empirically investigates reasons of bank failures in Turkey. The main hypothesis of the investigation is that the presence of full coverage deposit insurance after 1994 worsened the financial position of banks in Turkey through moral hazard and adverse selection. This hypothesis examined by a two stage empirical approach. In the first stage, by constructing a probit model, the author analyzed determinants of privately-owned commercial bank failures in Turkey. In the second stage, the author investigated the effects of moral hazard and adverse selection problems of full coverage deposit insurance on the financial ratios of the Turkish banking sector by evaluating pre-1994 and post-1994 benchmark-adjusted financial ratios using nonparametric Wilcoxon signed rank test. Our empirical investigation reveals that bank failures in Turkey are positively and strongly correlated with the presence of full coverage deposit insurance. The presence of full coverage deposit insurance after 1994 led to deteriorations in financial ratios of especially small banks, suggesting increased fragility in the Turkish banking sector through moral hazard and adverse selection. These results may suggest that it would be preferable to remove deposit insurance in order to minimize bank failures in Turkey. By looking at the recent bank run on the SFHs in February 2001, the second part of the study analyzed the suggestion above. Our micro-study demonstrates that removal of deposit insurance coverage can exacerbate problems with widespread bank runs since depositors, especially small ones, do not appear to be able to distinguish between solvent and insolvent banks during a bank run in Turkey. Thus, we conclude that we need at least limited coverage to protect unsophisticated small depositors. Our case study also illustrates that foreign partnership in the banking sector can potentially be of great value in reducing the probability of banking crises and to overcoming depositors' runs on otherwise healthy institutions in developing countries.
Bank runs and deposit insurance in developing countries: The case of Turkey
Creators: name: Yilmaz, Rasim
Publisher: name: ProQuest
Year: 2023
Subjects: classificationCode: 38
subject: Economics

description: The purpose of this dissertation is to address the policies intended to minimize risks and consequences of banking crises and bank runs in developing countries in the context of a developing country, Turkey. The first part of the study empirically investigates reasons of bank failures in Turkey. The main hypothesis of the investigation is that the presence of full coverage deposit insurance after 1994 worsened the financial position of banks in Turkey through moral hazard and adverse selection. This hypothesis examined by a two stage empirical approach. In the first stage, by constructing a probit model, the author analyzed determinants of privately-owned commercial bank failures in Turkey. In the second stage, the author investigated the effects of moral hazard and adverse selection problems of full coverage deposit insurance on the financial ratios of the Turkish banking sector by evaluating pre-1994 and post-1994 benchmark-adjusted financial ratios using nonparametric Wilcoxon signed rank test. Our empirical investigation reveals that bank failures in Turkey are positively and strongly correlated with the presence of full coverage deposit insurance. The presence of full coverage deposit insurance after 1994 led to deteriorations in financial ratios of especially small banks, suggesting increased fragility in the Turkish banking sector through moral hazard and adverse selection. These results may suggest that it would be preferable to remove deposit insurance in order to minimize bank failures in Turkey. By looking at the recent bank run on the SFHs in February 2001, the second part of the study analyzed the suggestion above. Our micro-study demonstrates that removal of deposit insurance coverage can exacerbate problems with widespread bank runs since depositors, especially small ones, do not appear to be able to distinguish between solvent and insolvent banks during a bank run in Turkey. Thus, we conclude that we need at least limited coverage to protect unsophisticated small depositors. Our case study also illustrates that foreign partnership in the banking sector can potentially be of great value in reducing the probability of banking crises and to overcoming depositors' runs on otherwise healthy institutions in developing countries.
Quantum steering as a witness of quantum scrambling
Creators: name: Lin, Jhen-Dong
name: Lin, Wei-Yu
name: Ku, Huan-Yu
name: Lambert, Neill
name: Chen, Yueh-Nan
name: Nori, Franco
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Quantum information scrambling describes the delocalization of local information to global information in the form of entanglement throughout all possible degrees of freedom. A natural measure of scrambling is the tripartite mutual information (TMI), which quantifies the amount of delocalized information for a given quantum channel with its state representation, i.e., the Choi state. In this work, we show that quantum information scrambling can also be witnessed by temporal quantum steering for qubit systems. We can do so because there is a fundamental equivalence between the Choi state and the pseudo-density matrix formalism used in temporal quantum correlations. In particular, we propose a quantity as a scrambling witness, based on a measure of temporal steering called temporal steerable weight. We justify the scrambling witness for unitary qubit channels by proving that the quantity vanishes whenever the channel is non-scrambling.
A laserball calibration device for the SNO+ scintillator phase
Creators: name: Valder, S.
name: Gibson-Foster, A.
name: Falk, E.
name: Peeters, S. J. M.
name: Mills, C.
name: Nirkko, M.
name: Rigan, M.
name: Sinclair, J.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: Located 2 km underground in SNOLAB, Sudbury, Canada, SNO+ is a large scale liquid scintillator experiment that primarily aims to search for neutrinoless double beta decay. Whilst SNO+ has light and radioactive calibration sources external to the inner volume, an internally deployed optical source is necessary for the full characterization of the detector model. A laser diffuser ball developed for SNO has previously demonstrated to be an effective optical calibration device for both SNO and SNO+ water phase. Since the introduction of liquid scintillator for SNO+, the material compatibility, cleanliness, and radiopurity requirements of any materials in contact with the internal medium have increased. Improving on the original SNO laserball design, a new laserball calibration device has been developed for the SNO+ scintillator phase with the goal of measuring the optical properties of the detector and performing routine PMT gain and timing calibrations. Simulations have been written to model the diffusion properties to optimise optical and temporal performance for calibration. Prototype laserballs have been built and characterised, demonstrating sub-ns timing resolution and a quasi-isotropic light distribution
description: 21 pages, 16 figures
An Economic Feasibility Study of Crop Residues as an Auxilary Fuel Source for Iowa's Coal-Fired Power Plants
Creators: name: English, Burton C.
name: Short, Cameron
name: Heady, Earl O.
name: English, Burton C.
name: Short, Cameron
name: Heady, Earl O.
Publisher: name: Unknown
Year: 1979
Subjects: Resource /Energy Economics and Policy

description: The rising costs of fossil fuel have sparked interest in crop residues as an alternate, renewable energy source. The costs of crop residue for direct combustion in power plants are estimated in 1975 prices in order to evaluate the economic feasibility of this source of energy. The costs are estimated for the following three stages in the crop residue production process: farm level production costs, transportation costs, and processing and handling costs at the energy recovery level. These costs are then incorporated into an Iowa agricultural linear programming model. The programming model, for Iowa agriculture, includes costs and demands of an electric utility sector. The model, including Iowa crop production activities, is used to make solutions for several alternative scenarios. One is a base solution for comparison of the other alternatives. Energy prices are increased in another solution. Finally, one solution constrains sulfur. Under each of these scenarios crop residue replaces coal at the levels of 20, 40, and 60 percent of the 1975 BTU's consumed. Comparison of the various scenarios with the Base Run allows comparison of agricultural production costs, energy use, and net income. Estimated, also, are the direct and indirect costs of crop residues for each of the forementioned scenarios. Finally, net benefit of using crops residues is derived.
Eucera (Synhalonia) tricinctella BCP (LACM
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: Eucera (Synhalonia) tricinctella (Timberlake, 1969) *
[Holotype: CASC; ♂ The Gavilan, Riverside Co., California, USA; March 16, 1938]
This species represents a new record for the BCP. We examined two males collected in March 1961 in the Chaparral ecoregion in La Zapopita near Valle de la Trinidad (LACM). See fig. 105.
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 170, DOI: 10.11646/zootaxa.5522.1.1, http://zenodo.org/record/13920532
Evaluating Pennsylvania’s Newborn Hearing Screening Program
Creators: name: Roman, Aaron M
name: Gustin, Stacey
name: Wagner, Joseph D
Publisher: name: Utah State University
Year: 2021

description: Scope: Pennsylvania’s Newborn Hearing Screening (NBHS) program is a critical state-run program that is imperative for the goal of early identification of children with hearing loss. The purpose of this study was to evaluate Pennsylvania’s administration of the NBHS, as well as analyze Pennsylvania’s adherence to the JCIH 1-3-6 Guidelines.
Methodology: Records from 131,832 newborns born in 2018 were analyzed for this study. Descriptive statistics were utilized to determine outcomes related to the JCIH guidelines. Prevalence of hearing loss and odds ratios were calculated to determine risks of hearing loss in the 2018 newborn population.
Conclusions: The findings suggest that Pennsylvania has a strong adherence to the 1-3-6 guidelines, with an average timeframe of 3.04 days from birth to screening, 75.39 days from birth to diagnosis, and 174.2 days from birth to early intervention enrollment. The information from this study will be used for future program development, as well as to identify areas of improvement within the Commonwealth.
Policy, perceptions, and place: An ethnography of the complexities of implementing a federal housing program
Creators: name: Clark, Sherriann Lawson
Publisher: name: ProQuest
Year: 2023
Subjects: classificationCode: 44
subject: Human society
classificationCode: 4401
subject: Anthropology
subject: FOS: Sociology
classificationCode: 4407
subject: Policy and administration

description: This dissertation examines the implementation of the HOPE VI federal housing program at a specific site located in Washington, D.C. I utilized participant observation techniques recognized in the field of cultural anthropology, including semi-structured interviews, focus groups, library and archival research, daily walks, and attending community meetings to guide this research. The site was the one of the first fourteen developments in the nation to receive a grant to demolish existing public housing structures and rebuild new mixed-income sites that resemble other neighboring homes to create seamless communities. Each HOPE VI grant mandates that monies also be set aside for a social service component to aid low-income residents living in the new developments. HUD hopes to reform public housing by changing both the physical and social aspects of housing policy. Housing policy, however, does not operate inside a bubble, nor is it static. Once implemented, it exists in both space and time. I explore the complexities involved in housing the poor in Washington, D.C. from the Civil War to the present and how these complexities have helped shape the physical landscape and ideological discourse surrounding low-income residents over time. I found issues such as race, class, gender, and age create inequities that are visible in the spatial ecology of residences throughout the District of Columbia. These inequities, then, interact with other structural forces including political and economic trends, local business development and community organization efforts---all of which affect the lived experiences of low-income residents. These residents live in a place where development projects surround them---projects that many in the city argue are vital for the city's prosperity. Unfortunately, with growth comes decay for those who do not have the means to partake in upscale urban living. HOPE VI is the only federal program that funds new housing developments for the poor. This dissertation demonstrates the nuances of implementing a HOPE VI program in space and over time and offers both methods and theoretical perspectives that will guide researchers and aid in evaluating future changes at the site as well as other HOPE VI projects currently under construction.
Operational definition of a quantum speed limit
Creators: name: Shao, Yanyan
name: Liu, Bo
name: Zhang, Mao
name: Yuan, Haidong
name: Liu, Jing
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The quantum speed limit is a fundamental concept in quantum mechanics, which aims at finding the minimum time scale or the maximum dynamical speed for some fixed targets. In a large number of studies in this field, the construction of valid bounds for the evolution time is always the core mission, yet the physics behind it and some fundamental questions like which states can really fulfill the target, are ignored. Understanding the physics behind the bounds is at least as important as constructing attainable bounds. Here we provide an operational approach for the definition of the quantum speed limit, which utilizes the set of states that can fulfill the target to define the speed limit. Its performances in various scenarios have been investigated. For time-independent Hamiltonians, it is inverse-proportional to the difference between the highest and lowest energies. The fact that its attainability does not require a zero ground-state energy suggests it can be used as an indicator of quantum phase transitions. For time-dependent Hamiltonians, it is shown that contrary to the results given by existing bounds, the true speed limit should be independent of the time. Moreover, in the case of spontaneous emission, we find a counterintuitive phenomenon that a lousy purity can benefit the reduction of the quantum speed limit.
description: 9+9 pages, 10 figures
Policy, perceptions, and place: An ethnography of the complexities of implementing a federal housing program
Creators: name: Clark, Sherriann Lawson
Publisher: name: American University
Year: 2023

description: This dissertation examines the implementation of the HOPE VI federal housing program at a specific site located in Washington, D.C. I utilized participant observation techniques recognized in the field of cultural anthropology, including semi-structured interviews, focus groups, library and archival research, daily walks, and attending community meetings to guide this research. The site was the one of the first fourteen developments in the nation to receive a grant to demolish existing public housing structures and rebuild new mixed-income sites that resemble other neighboring homes to create seamless communities. Each HOPE VI grant mandates that monies also be set aside for a social service component to aid low-income residents living in the new developments. HUD hopes to reform public housing by changing both the physical and social aspects of housing policy. Housing policy, however, does not operate inside a bubble, nor is it static. Once implemented, it exists in both space and time. I explore the complexities involved in housing the poor in Washington, D.C. from the Civil War to the present and how these complexities have helped shape the physical landscape and ideological discourse surrounding low-income residents over time. I found issues such as race, class, gender, and age create inequities that are visible in the spatial ecology of residences throughout the District of Columbia. These inequities, then, interact with other structural forces including political and economic trends, local business development and community organization efforts---all of which affect the lived experiences of low-income residents. These residents live in a place where development projects surround them---projects that many in the city argue are vital for the city's prosperity. Unfortunately, with growth comes decay for those who do not have the means to partake in upscale urban living. HOPE VI is the only federal program that funds new housing developments for the poor. This dissertation demonstrates the nuances of implementing a HOPE VI program in space and over time and offers both methods and theoretical perspectives that will guide researchers and aid in evaluating future changes at the site as well as other HOPE VI projects currently under construction.
Asymptotic security analysis of teleportation based quantum cryptography
Creators: name: Lima, Diogo
name: Rigolin, Gustavo
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We prove that the teleportation based quantum cryptography protocol presented in [Opt. Commun. 283, 184 (2010)], which is built using only orthogonal states encoding the classical bits that are teleported from Alice to Bob, is asymptotically secure against all types of individual and collective attacks. We then investigate modifications to that protocol leading to greater secret-key rates and to security against coherent attacks. In other words, we show an unconditional secure quantum key distribution protocol that does not need non-orthogonal quantum states to encode the bits of the secret key sent from Alice to Bob. We also revisit the security proof of the BB84 protocol by exploring the non-uniqueness of the Schmidt decomposition of its entanglement-based representation. This allows us to arrive at a secure transmission of the key for a slightly greater quantum bit error rate (quantum communication channel's noise) when compared to its standard security analysis.
description: 35 pages, 2 figures, single column; v2: published version
Cosmological models with asymmetric quantum bounces
Creators: name: Delgado, P. C. M.
name: Pinto-Neto, N.
Publisher: name: arXiv
Year: 2020
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: In quantum cosmology, one has to select a specific wave function solution of the quantum state equations under consideration in order to obtain concrete results. The simplest choices have been already explored, in different frameworks, yielding, in many cases, quantum bounces. As there is no consensually established boundary condition proposal in quantum cosmology, we investigate the consequences of enlarging known sets of initial wave functions of the universe, in the specific framework of the Wheeler-DeWitt equation interpreted along the lines of the de Broglie-Bohm quantum theory, on the possible quantum bounce solutions which emerge from them. In particular, we show that many asymmetric quantum bounces are obtained, which may incorporate non-trivial back-reaction mechanisms, as quantum particle production around the bounce, in the quantum background itself. In particular, the old hypothesis that our expanding universe might have arisen from quantum fluctuations of a fundamental quantum flat space-time is recovered, within a different and yet unexplored perspective.
description: 10 pages, 6 figures; correction in section III B, main results unchanged; references added. This is an author-created, un-copyedited version of an article published in Classical and Quantum Gravity. IOP Publishing Ltd is not responsible for any errors or omissions in this version of the manuscript or any version derived from it. The Version of Record is available online at the DOI link below
Work and family commitment among "emerging adults"
Creators: name: Friedman, Stacey Ruth Anne
Publisher: name: ProQuest
Year: 2023
Subjects: classificationCode: 52
subject: Psychology
subject: FOS: Psychology
classificationCode: 5205
subject: Social and personality psychology

description: The present study investigated the structure and formation of work and family identities among "emerging adults." Participants were 46 male and 49 female juniors and seniors at a private East Coast University, ages 19 to 23 (M = 21.1, SD = .97). It was hypothesized that while men and women would not differ on their level of commitment to work roles, women would be more committed than men to family roles. It was also hypothesized that neither men nor women would feel the need to "trade off" between work and family commitment levels. Social cognitive theory was expected to account for work and family commitment levels, as were gender-related personality traits. Contrary to the hypotheses, men and women were found to have similar levels of commitment to both work and family roles, while for women, but not men, there was a negative correlation between work and family commitment levels. As hypothesized, respondents' agency was related to their work commitment, while communality was related to their family commitment. While the social cognitive model in the present study did not account for work and family commitment levels, exploratory analyses looked at the relationships between actual and observed experience with work and family activities and work and family self-efficacy and commitment. The implications of these findings for social cognitive and role expansion theories are discussed.
Additional file 1 of Mapping evidence on the prevalence, incidence, risk factors and cost associated with chronic low back pain among adults in Sub-Saharan Africa: a systematic scoping review protocol
Creators: name: Kahere, Morris
name: Themba Ginindza
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Biotechnology
subject: Cancer
subject: Science Policy
subject: 110309 Infectious Diseases
subject: FOS: Health sciences

description: Additional file 1. PRISMA-ScR Checklist (16).
Work and family commitment among "emerging adults"
Creators: name: Friedman, Stacey Ruth Anne
Publisher: name: American University
Year: 2023

description: The present study investigated the structure and formation of work and family identities among "emerging adults." Participants were 46 male and 49 female juniors and seniors at a private East Coast University, ages 19 to 23 (M = 21.1, SD = .97). It was hypothesized that while men and women would not differ on their level of commitment to work roles, women would be more committed than men to family roles. It was also hypothesized that neither men nor women would feel the need to "trade off" between work and family commitment levels. Social cognitive theory was expected to account for work and family commitment levels, as were gender-related personality traits. Contrary to the hypotheses, men and women were found to have similar levels of commitment to both work and family roles, while for women, but not men, there was a negative correlation between work and family commitment levels. As hypothesized, respondents' agency was related to their work commitment, while communality was related to their family commitment. While the social cognitive model in the present study did not account for work and family commitment levels, exploratory analyses looked at the relationships between actual and observed experience with work and family activities and work and family self-efficacy and commitment. The implications of these findings for social cognitive and role expansion theories are discussed.
Melissodes (Apomelissodes) paucipuncta LaBerge 1961
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: Melissodes (Apomelissodes) paucipuncta LaBerge, 1961
[Holotype: SEMC; ♀ east of Thompson Arbor [etum], Superior, Pinal Co., Arizona, USA; May 15, 1954]
This species has only been recorded in Arizona and BCS. In BCS, it has been documented within La Giganta Ranges by TAMU (GBIF 2023). Additionally, the CARCIB team collected one male and one female in the Gulf Coast in October 2017. See fig. 106.
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 171, DOI: 10.11646/zootaxa.5522.1.1, http://zenodo.org/record/13920532
The Role of Early Intervention in Parental Self-Efficacy for  Parents of Deaf and Hard-of-Hearing Children
Creators: name: Davenport, Carrie
name: Houston, Derek
name: Bowdrie, Kristina
name: Frush Holt, Rachael
Publisher: name: Utah State University
Year: 2021

description: Purpose: To investigate the effects of age at enrollment in early intervention (EI) and dosage of EI services (frequency and intensity) on parental self-efficacy (PSE) and to determine whether parents with better PSE demonstrate more involvement in deciding Individualized Family Service Plan goals (IFSP), services, and amount of services.
Method: Sixty-five parent-child dyads were included in this retrospective between-subjects study. PSE was measured using the Scale of Parental Involvement and Self-Efficacy (DesJardin, 2003). Dosage of EI services and parent/professional involvement in IFSP decision-making were measured using a Child Demographic Questionnaire.
Results: Statistically significant correlations were not found between age at EI enrollment and SPISE subscales. Statistically significant correlations were not found based on frequency or intensity of EI services. Mixed results were found regarding level of parent involvement in decision-making of IFSP goals, kinds of services, and amount of services.
Conclusions: Findings demonstrate the complexities in determining the effects of age at EI enrollment, EI dosage, and central elements of the IFSP on self-efficacy in parents of children who are deaf/hard-of-hearing. Future studies are needed to validate these findings and further the knowledge base about the role of EI in supporting parents’ sense of self-efficacy in supporting their child’s development.
Spin-eccentricity interplay in merging binary black holes
Creators: name: Fumagalli, Giulia
name: Gerosa, Davide
Publisher: name: arXiv
Year: 2023
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Orbital eccentricity and spin precession are precious observables to infer the formation history of binary black holes with gravitational-wave data. We present a post-Newtonian, multi-timescale analysis of the binary dynamics able to capture both precession and eccentricity over long inspirals. We show that the evolution of an eccentric binary can be reduced that of effective source on quasi-circular orbits, coupled to a post-Newtonian prescription for the secular evolution of the eccentricity. Our findings unveil an interplay between precession and eccentricity: the spins of eccentric binaries precess on shorter timescales and their nutation amplitude is altered compared to black holes on quasi-circular orbits, consequently affecting the so-called spin morphology. Even if binaries circularize by the time they enter the sensitivity window of our detectors, their spin orientations retain some memory of the past evolution on eccentric orbits, thus providing a new link between gravitational-wave detection and astrophysical formation. At the same time, we point out that residual eccentricity should be considered a source of systematics when reconstructing the past history of black-hole binaries using the spin orientations.
description: 11 pages, 8 figures
Molecular dynamics simulation study of a polymer droplet transport over an array of spherical nanoparticles
Creators: name: Thomas, Anish
name: Priezjev, Nikolai V.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Computational Physics (physics.comp-ph)
subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: The dynamic behavior of a partially wetting polymer droplet driven over a nanostructured interface is studied using molecular dynamics simulations. We consider the bead-spring model to represent a polymeric liquid that partially wets a rough surface composed of a periodic array of spherical particles. It is shown that at sufficiently small values of the external force, the droplet remains pinned at the particles' surface, while above the threshold, its motion consists of alternating periods of pinning and rapid displacements between neighboring particles. The latter process involves large periodic variation of the advancing and receding contact angles due to attachment and detachment of the contact line. Finally, upon increasing external force, the droplet center of mass is displaced steadily but the oscillation amplitude of the receding contact angle as well as the maximum contact angle hysteresis remain relatively unaffected.
description: 22 pages, 11 figures
Melissodes (Callimelissodes) lustrus LaBerge 1961
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: Melissodes (Callimelissodes) lustrus LaBerge, 1961
[Holotype: SEMC; ♀ Erwin Lake, San Bernardino Mts., California, USA; 22 Aug 1932]
Melissodes lustrus is found in western North America. Within Baja California, its occurrence is documented in the Coastal Sage Matorral (LaBerge 1961). This species specialized on pollen on several genera in the family Asteraceae (Fowler 2020). See fig. 106.
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 173, DOI: 10.11646/zootaxa.5522.1.1, http://zenodo.org/record/13920532
Analyzing habits, willingness, effectiveness, and costs of current household energy-saving activities
Creators: name: Cheng, Christopher
name: Ho, Selina
name: Hoi, Cheng Ian
name: Yuen, Stanley
Publisher: name: The University of British Columbia
Year: 2017

description: For our team’s energy conservation study, we examined four attributes related to energy conservation: Vancouver residents’ current beliefs about effective energy saving practices at home, conservation actions currently executed by residents, additional actions or activities they would be willing to adopt, and perceptions regarding costs of certain activities. Ultimately, our research question was: What do Vancouver residents believe are the most effective energy conservation practices at home? What actions are they currently doing and what would they be willing to adopt? For our study, we conducted a survey that asked participants ten common energy conservation activities (such as turning off the light) and measured their current habits, perceived effectiveness, willingness to implement and perceived cost of engaging in the activity. The results from our study show that majority of Vancouver residents aim to run full loads of laundry. Additionally, it seems that most Vancouverites are unwilling to install energy monitoring devices, despite the long-run cost savings. Lastly in terms of costs affecting the other factors, we had inconclusive results, but we did conclude that cost and willingness to implement conservation practices are not independent. This report will outline our study, explain our analysis and walk through our recommendations. Disclaimer: “UBC SEEDS provides students with the opportunity to share the findings of their studies, as well as their opinions, conclusions and recommendations with the UBC community. The reader should bear in mind that this is a student project/report and is not an official document of UBC. Furthermore readers should bear in mind that these reports may not reflect the current status of activities at UBC. We urge you to contact the research persons mentioned in a report or the SEEDS Coordinator about the current status of the subject matter of a project/report.”
title: The host genetics of typhoid fever in Vietnam
Creators: name: Nguyen, Thi Hue
Publisher: name: The Open University
Year: 2007

description: Typhoid fever is a systemic infection caused by the bacterium Salmonella enterica serovar Typhi. It remains a major public health problem throughout the developing world with over 22 million people infected each year. The emergence of resistance to chloramphenicol and other antimicrobials has been a major setback and we now face the very real prospect that untreatable typhoid fever will emerge. Understanding host genetics may yield answers that lead to the development of new therapeutics for infectious disease such as typhoid fever. Using a genetic approach we aim to investigate a number of immune response genes that may be important in the defense against typhoid fever. Here we describe studies investigating the genetic variation within some human innate immunity genes which may play an important role in susceptibility to typhoid fever. The TLR4 gene encoding the principal receptor for bacterial endotoxin recognition, an element of innate immunity that contributes to the first line of defense against infectious disease was investigated. We determined the extent of genetic variation within TLR4 in a Vietnamese kinh population and identified a number of novel missense mutations. It appears that this gene may be involved in defense against typhoid fever, as evidenced by weak associations with two SNPs and the presence of low frequency non-synonymous SNPs in only typhoid fever cases which may have the potential to alter protein function. The haplotypic structure of a 150Kb genomic region encompassing TNFA was determined in a Vietnamese population. This allowed the identification of 15 haplotype tagging SNPs which were genotyped in a case/control genetic association study. Seven polymorphisms across three key genes in the TNF region were associated with typhoid fever. A haplotype spanning this region (*12122*1111) was strongly associated with protection from typhoid fever. Polymorphisms in the chemokine and other immune response gene cluster on chromosome 17q11.22-q22 were also investigated. Our results show that the NOS2A gene within this region, which encodes iNOS, plays an important role in typhoid fever as polymorphisms within NOS2A were shown to be associated with protection from typhoid fever. A number of genes or genomic regions encoding components of the innate and acquired immune responses contribute to an individual’s ability to mount an appropriate immune response to S. typhi infection during typhoid fever. Genetic variation in any of these genes may lead to the alteration of the host immune response with deleterious effects. Together with environmental factors and pathogen virulence, host genetic factors contribute to typhoid fever susceptibility, and studies of candidate genes and genomic regions add to our overall understanding of protective disease mechanisms.
Do the determinants of participation in group business decisions differ by gender? The case of American labor -managed firms
Creators: name: Miller, Genna Ruth
Publisher: name: American University
Year: 2023

description: Labor managed firms are those firms that are both owned and managed by the workers themselves. Ideally, in such democratic firms, all workers participate equally in making business decisions. However, recent studies suggest that women participate less than men do in decision-making. In this study I examine the extent to which women in American labor managed firms participate less than men do and investigate the different determinants of men's and women's participation levels. A theory is applied here that suggests that the organizational features of labor managed firms are important determinants of participation. This theory assumes that women have a lower economic status than men do, with women having lower wages, lower shareholdings in the firm, lower skills, fewer leadership roles, and fewer hours worked at the firm. On the basis of these assumptions, it was suggested that the organizational features of firms have significantly different effects on men's and women's participation levels, causing women to participate less than men do. In order to test these theories, data was collected through a mail survey of American labor managed firms in 2001. The data showed that many of the assumptions concerning women's lower economic status are not valid for women in American labor managed firms. Due to this relative equality between American women and men, it was found that, contrary to previous studies, the extent of differences in participation levels between men and women is actually quite small. Women were not found to participate less than men do in overall decision-making, and were only found to participate less in the area of technical and production decisions. The survey data was also used to estimate participation functions that examined the effects of different variables, including the firm's organizational features, on men's and women's participation levels. Through these estimations it was found that some of the organizational features differ in their effects on participation by gender, while others do not. Specifically, policies regarding cross-training levels and decision-making styles used in the firm do not differ much in their effects on men and women. In contrast, wage differentials and the surplus distribution methods used in the firm both affect women's participation in the opposite way from the effects they have on men's participation. Similarly, increased rotation of leadership roles has opposite effects on men's and women's participation in some decision-making areas. The findings suggest that labor managed firms need to consider these different impacts on men's and women's participation levels when devising policies regarding the firm's organizational features. By implementing gender-aware policies, firms can encourage both men's and women's participation in decision-making.
The Hills Mechanism and the Galactic Center S-stars
Creators: name: Generozov, Aleksey
name: Madigan, Ann-Marie
Publisher: name: arXiv
Year: 2020
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Our Galactic center contains young stars, including the few million year old clockwise disk between 0.05 and 0.5 pc from the Galactic center, and the S-star cluster of B-type stars at a galactocentric distance of ~0.01 pc. Recent observations suggest the S-stars are remnants of tidally disrupted binaries from the clockwise disk. In particular, Koposov et al. 2020 discovered a hypervelocity star that was ejected from the Galactic center 5 Myr ago, with a velocity vector consistent with the disk. We perform a detailed study of this binary disruption scenario. First, we quantify the plausible range of binary semimajor axes in the disk. Dynamical evaporation of such binaries is dominated by other disk stars rather than by the isotropic stellar population. For the expected range of semimajor axes in the disk, binary tidal disruptions can reproduce the observed S-star semimajor axis distribution. Reproducing the observed thermal eccentricity distribution of the S-stars requires an additional relaxation process. The flight time of the Koposov star suggests that this process must be effective within 10 Myr. We consider three possibilities: (i) scalar resonant relaxation from the observed isotropic star cluster, (ii) torques from the clockwise disk, and (iii) an intermediate-mass black hole. We conclude that the first and third mechanisms are fast enough to reproduce the observed S-star eccentricity distribution. Finally, we show that the primary star from an unequal-mass binary would be deposited at larger semimajor axes than the secondary, possibly explaining the dearth of O stars among the S-stars.
description: 21 pages, 16 figures + Appendix. Accepted for publication in ApJ. The new version is substantially improved with a more detailed treatment of resonant and nonresonant relaxation from the observed isotropic cluster in the Galactic center. In contrast to the first version, we now conclude that these processes alone can reproduce the S-stars' eccentricity distribution in less than 10 Myr