cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Orthorhombic metal carbide-borides MeC$_2$B$_{12}$ (Me=Mg, Ca, Sr) from first principles: structure, stability and mechanical properties
Creators: name: Bystrenko, Oleksiy
name: Zhang, Jingxian
name: Sun, Tianxing
name: Ruan, Hu
name: Duan, Yusen
name: Zhang, Kaiqing
name: Li, Xiaoguang
Publisher: name: arXiv
Year: 2024
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: First principle DFT simulations are employed to study structural and mechanical properties of orthorhombic B12-based metal carbide-borides. The simulations predict the existence of Ca- and Sr- based phases with the structure similar to that of experimentally observed earlier compound MeC$_2$B$_{12}$. Dynamical stability of both phases is demonstrated, and the phase MeC$_2$B$_{12}$ is found to be thermodynamically stable. According to simulations, Ca- and Sr- based phases have significantly enhanced mechanical characteristics, which suggest their potential application as superhard materials. Calculated shear and Young moduli of these phases are nearly 250 and 540 GPa, respectively, and estimated Vickers hardness is 45-55 GPa.
description: 11 pages, 4 figures, 3 tables
Health and Economic Benefits of Reducing the Number of Students per Classroom in US Primary Schools
Creators: name: Muennig, Peter A.
name: Woolf, Steven H.
Publisher: name: Columbia University
Year: 2007
Subjects: Public schools--Cost effectiveness
Education--Cost effectiveness
Educational change--Economic aspects
School children
Public schools--Health aspects
Education, Elementary
Class size
Public health
Education--Administration
School management and organization

description: Objectives. We estimated the costs associated with reducing class sizes in kindergarten through grade 3 as well as the effects of small class sizes on selected outcomes such as quality-adjusted life-years and future earnings. Methods. We used multiple data sets to predict changes in the outcomes assessed according to level of educational attainment. We then used a Markov model to estimate future costs and benefits incurred and quality-adjusted life-years gained per additional high school graduate produced over time. Results. From a societal perspective (incorporating earnings and health outcomes), class-size reductions would generate a net cost savings of approximately $168 000 and a net gain of 1.7 quality-adjusted life-years for each high school graduate produced by small classes. When targeted to low-income students, the estimated savings would increase to $196 000 per additional graduate. From a governmental perspective (incorporating public expenditures and revenues), the results of reducing class sizes ranged from savings in costs to an additional cost of $15000 per quality-adjusted life-year gained. Conclusions. Reducing class sizes may be more cost-effective than most public health and medical interventions.
TeV Scale Universal Seesaw, Vacuum Stability and Heavy Higgs
Creators: name: Mohapatra, Rabindra N.
name: Zhang, Yongchao
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We discuss the issue of vacuum stability of standard model by embedding it within the TeV scale left-right universal seesaw model (called SLRM in the text). This model has only two coupling parameters $(λ_1, λ_2)$ in the Higgs potential and only two physical neutral Higgs bosons $(h, H)$. We explore the range of values for $(λ_1, λ_2)$ for which the light Higgs boson mass $M_h=126$ GeV and the vacuum is stable for all values of the Higgs fields. Combining with the further requirement that the scalar self couplings remain perturbative till typical GUT scales of order $10^{16}$ GeV, we find (i) an upper and lower limit on the second Higgs $(H)$ mass to be within the range: $0.4 \leq \frac{M_H}{v_R}\leq 0.7$, where the $v_R$ is the parity breaking scale and (ii) that the heavy vector-like top, bottom and $τ$ partner fermions ($P_3, N_3, E_3$) mass have an upper bound $M_{P_3, N_3, E_3} \leq v_R$. We discuss some phenomenological aspects of the model pertaining to LHC.
description: 21 pages, 7 figures, some typos corrected and references updated, accepted for publication in JHEP
Additional file 5 of Severe subcutaneous infection with Clostridium septicum in a herd of native Icelandic horses
Creators: name: Oddsdóttir, Charlotta
name: Sigurðardóttir, Ólöf G.
name: Friðriksdóttir, Vala
name: Svansson, Vilhjálmur
name: Bragason, Birkir Þór
name: Björnsdóttir, Sigríður
Publisher: name: figshare
Year: 2025
Subjects: subject: Medicine
subject: Microbiology
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Neuroscience
subject: Biotechnology
subject: Ecology
subject: Immunology
subject: FOS: Clinical medicine
subject: Cancer
subject: Mental Health
subject: Infectious Diseases
subject: FOS: Health sciences
subject: Computational Biology

description: Additional file 5. Results from multiple sequence alignment of the amino acid and nucleotide sequences of the alpha-toxin genes in all Clostridium septicum strains included in the study.
A systematic review and meta-analysis of the effect of statin treatment on sVCAM-1 and sICAM-1
Creators: name: Zinellu, Angelo
name: Mangoni, Arduino A
Publisher: name: Taylor & Francis
Year: 2022
Subjects: subject: Cell Biology
subject: Pharmacology
subject: Biotechnology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Cancer
subject: Science Policy
subject: 110309 Infectious Diseases
subject: FOS: Health sciences

description: Statins might prevent cell adhesion to the endothelium, a key step in atherosclerosis. We conducted a systematic review and meta-analysis of the effect of statins on soluble vascular (sVCAM-1) and intercellular (sICAM-1) adhesion molecule 1. A systematic literature search was conducted in PubMed, Web of Science, and Scopus, from inception to July 2021. Risk of bias and certainty of evidence were assessed using the Joanna Briggs Institute Critical Appraisal Checklist for analytical studies and GRADE, respectively. Statins significantly reduced both sVCAM-1 (standard mean difference, SMD = −0.28, 95% CI −0.44 to −0.12, p = 0.001; 46 treatment arms; low certainty of evidence) and sICAM-1 (SMD = −0.75, 95% CI −1.00 to −0.50, p < 0.001; 61 treatment arms; moderate certainty of evidence) concentrations. In sensitivity analysis, the SMD values were not modified when individual studies were sequentially removed. There were significant associations between SMD and publication year and, for sICAM-1, statin-induced changes in HDL-cholesterol. In subgroup analysis, the lowering effect was significant with lipophilic, but not hydrophilic, statins, and similar, for sICAM-1, in participants with or without clinically overt atherosclerosis. Statins significantly lower sVCAM-1/sICAM-1. Prospective studies are required to determine whether this mediates their atheroprotective effects (PROSPERO registration number: CRD42021276825).
A non self-adjoint model on a two dimensional noncommutative space with unbound metric
Creators: name: Bagarello, Fabio
name: Fring, Andreas
Publisher: name: arXiv
Year: 2013
Subjects: subject: Quantum Physics (quant-ph)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We demonstrate that a non self-adjoint Hamiltonian of harmonic oscillator type defined on a two-dimensional noncommutative space can be diagonalized exactly by making use of pseudo-bosonic operators. The model admits an antilinear symmetry and is of the type studied in the context of PT-symmetric quantum mechanics. Its eigenvalues are computed to be real for the entire range of the coupling constants and the biorthogonal sets of eigenstates for the Hamiltonian and its adjoint are explicitly constructed. We show that despite the fact that these sets are complete and biorthogonal, they involve an unbounded metric operator and therefore do not constitute (Riesz) bases for the Hilbert space $\Lc^2(\Bbb R^2)$, but instead only D-quasi bases. As recently proved by one of us (FB), this is sufficient to deduce several interesting consequences.
description: 11 pages, in press in Physical Review A
Linked Open Samian Ware - Unveiling the hidden Data Dragons and uncovering temporal vagueness with the help of Little Minions
Creators: name: Thiery, Florian
name: Mees, Allard
name: Gottwald, Dennis
Publisher: name: Zenodo
Year: 2020
Subjects: Linked Open Data
Samian Ware
Wikidata

description: The relevance of LOD and the Semantic Web in archaeology has increased substantially, resulting in the establishing of a CAA Special Interest Group on Semantics and LOUD in Archaeology (SIG Data Dragon). There is - usually beyond our current known horizon - a considerable amount of unknown but qualified data, which is essentially available but hardly findable: the modern unknown data dragons (datadragon.link). They are hidden in their lairs and we are trying to lure them out. As an example, we use the online relational database `Samian Research` with its quarter of a million finds of potters’ stamps, placed by thousands of potters on Terra Sigillata, from all over Europe. South Gaulish potters’ stamps may occur on different sections of the Limes in different parts of Europe, allowing for a) comparison and b) temporal reasoning between the Limes sections of the 1st and 2nd centuries AD. As a result, Terra Sigillata is regarded as a dating instrument in archaeology. We are bringing the dragons into the open and transforming the resource into LOD as part of the LOD cloud. In the first part of our presentation, we will present this transformation process and its results. With all these data, assisted by two Little Minions - Alligator and AMT, introduced at CAA Kraków – we apply multivariate analysis combined with the use of the Alligator algorithm and AMT reasoning by using Linked Data techniques. In the second part of our presentation, we will then present interpretations resulting from analyses and visualisations of the dependencies within the dating arguments for individual sections of the Limes that rely on the evidence of Terra Sigillata data with the help of the Little Minions. This is a fundamental contribution for further methodological discussions as to what extent Sigillata can be considered as a dating instrument at all.
Bathyergidae Waterhouse 1841
Creators: name: Woods, Charles A.
Publisher: name: Zenodo
Year: 1993
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Mammalia
Rodentia
Bathyergidae

description: Family Bathyergidae Waterhouse, 1841. Ann. Mag. Nat. Hist., [ser. 1], 8:81. COMMENTS: Reviewed by Honeycutt et al. (1991). The family has been traditionally divided into two subfamilies: Bathyerginae with grooved upper incisors (Bathyergus); and Georychinae with ungrooved upper incisors (Cryptomys, Georychus, Heliophobius, Heterocephalis). Honeycutt et al. (1991:59) did not support such groupings.
description: Published as part of Charles A. Woods, 1993, Order Rodentia - Suborder Hystricognathi, pp. 771-806 in Mammal Species of the World (2 nd Edition), Washington and London :Smithsonian Institution Press on page 771, DOI: 10.5281/zenodo.7353083
description: {"references": ["Honeycutt, R. L., M. W. Allard, S. V. Edwards, and D. A. Schlitter. 1991. Systematics and evolution of the family Bathyergidae. Pp. 45 - 65, in The biology of the naked mole rat (P. W. Sherman, J. U. M. Jarvis, and R. D. Alexander, eds.). Princeton University Press, Princeton, 518 pp."]}
Global network for women’s and children’s health research: a system for low-resource areas to determine probable causes of stillbirth, neonatal, and maternal death
Creators: name: McClure, Elizabeth M.
name: Bose, Carl L.
name: Garces, Ana
name: Esamai, Fabian
name: Goudar, Shivaprasad S.
name: Patel, Archana
name: Chomba, Elwyn
name: Pasha, Omrana
name: Tshefu, Antoinette
name: Kodkany, Bhalchandra S.
name: Saleem, Sarah
name: Carlo, Waldemar A.
name: Liechty, Edward A.
name: Derman, Richard J.
name: Hambidge, K. Michael
name: Hibberd, Patricia L.
name: Krebs, Nancy F.
name: Bauserman, Melissa
name: Koso-Thomas, Marion
name: Moore, Janet
name: Wallace, Dennis D.
name: Jobe, Alan H.
name: Goldenberg, Robert L.
Publisher: name: Columbia University
Year: 2015
Subjects: Infants--Mortality--Prevention
Developing countries
Mothers--Mortality
Public health

description: Background: Determining cause of death is needed to develop strategies to reduce maternal death, stillbirth, and newborn death, especially for low-resource settings where 98% of deaths occur. Most existing classification systems are designed for high income settings where extensive testing is available. Verbal autopsy or audits, developed as an alternative, are time-intensive and not generally feasible for population-based evaluation. Furthermore, because most classification is user-dependent, reliability of classification varies over time and across settings. Thus, we sought to develop classification systems for maternal, fetal and newborn mortality based on minimal data to produce reliable cause-of-death estimates for low-resource settings. Results: In six low-resource countries (India, Pakistan, Guatemala, DRC, Zambia and Kenya), we evaluated data which are collected routinely at antenatal care and delivery and could be obtained with interview, observation, or basic equipment from the mother, lay-health provider or family to inform causes of death. Using these basic data collected in a standard way, we then developed an algorithm to assign cause of death that could be computer-programmed. Causes of death for maternal (trauma, abortion, hemorrhage, infection and hypertensive disease of pregnancy), stillbirth (birth trauma, congenital anomaly, infection, asphyxia, complications of preterm birth) and neonatal death (congenital anomaly, infection, asphyxia, complications of preterm birth) are based on existing cause of death classifications, and compatible with the World Health Organization International Classification of Disease system. Conclusions: Our system to assign cause of maternal, fetal and neonatal death uses basic data from family or lay-health providers to assign cause of death by an algorithm to eliminate a source of inconsistency and bias. The major strengths are consistency, transparency, and comparability across time or regions with minimal burden on the healthcare system. This system will be an important contribution to determining cause of death in low-resource settings. Keywords: Cause of death classification Maternal mortality Stillbirth Neonatal mortality Low-income Countries
We started to transform toward Open Science together with NASA: 10 points!
Creators: name: MetaDocencia Team
Publisher: name: Zenodo
Year: 2023
Subjects: Open Science
NASA
TOPS
Training
Cohorts

description: With OLS, 2i2c and the support of NASA, we join the initiative to transform science and technology to open practices. How did we get here? What does it represent? How will we work? What reach and impact do we expect? We tell you more in this blog post.
Differences in Ambient Polycyclic Aromatic Hydrocarbon Concentrations between Streets and Alleys in New York City: Open Space vs. Semi-Closed Space
Creators: name: Lovinsky-Desir, Stephanie
name: Miller, Rachel L.
name: Bautista, Joshua B.
name: Gil, Eric N.
name: Chillrud, Steven N.
name: Yan, Beizhan
name: Camann, David
name: Perera, Frederica P.
name: Jung, Kyung Hwa
Publisher: name: Columbia University
Year: 2016
Subjects: subject: Alleys
subject: Open spaces
subject: Polycyclic aromatic hydrocarbons--Measurement
subject: Ecology
subject: FOS: Biological sciences
subject: Chemistry
subject: Public health

description: Background: Outdoor ambient polycyclic aromatic hydrocarbon (PAH) concentrations are variable throughout an urban environment. However, little is known about how variation in semivolatile and nonvolatile PAHs related to the built environment (open space vs. semi-closed space) contributes to differences in concentrations. Methods: We simultaneously collected 14, two-week samples of PAHs from the outside of windows facing the front (adjacent to the street) open side of a New York City apartment building and the alley, semi-closed side of the same apartment unit between 2007 and 2012. We also analyzed samples of PAHs measured from 35 homes across Northern Manhattan and the Bronx, 17 from street facing windows with a median floor level of 4 (range 2–26) and 18 from alley-facing windows with a median floor level of 4 (range 1–15). Results: Levels of nonvolatile ambient PAHs were significantly higher when measured from a window adjacent to a street (an open space), compared to a window 30 feet away, adjacent to an alley (a semi-closed space) (street geometric mean (GM) 1.32 ng/m3, arithmetic mean ± standard deviation (AM ± SD) 1.61 ± 1.04 ng/m3; alley GM 1.10 ng/m3, AM ± SD 1.37 ± 0.94 ng/m3). In the neighborhood-wide comparison, nonvolatile PAHs were also significantly higher when measured adjacent to streets compared with adjacent to alley sides of apartment buildings (street GM 1.10 ng/m3, AM ± SD 1.46 ± 1.24 ng/m3; alley GM 0.61 ng/m3, AM ± SD 0.81 ± 0.80 ng/m3), but not semivolatile PAHs. Conclusions: Ambient PAHs, nonvolatile PAHs in particular, are significantly higher when measured from a window adjacent to a street compared to a window adjacent to an alley, despite both locations being relatively close to street traffic. This study highlights small-scale spatial variations in ambient PAH concentrations that may be related to the built environment (open space vs. semi-closed space) from which the samples are measured, as well as the relative distance from street traffic, that could impact accurate personal exposure assessments.
Additional file 6 of Severe subcutaneous infection with Clostridium septicum in a herd of native Icelandic horses
Creators: name: Oddsdóttir, Charlotta
name: Sigurðardóttir, Ólöf G.
name: Friðriksdóttir, Vala
name: Svansson, Vilhjálmur
name: Bragason, Birkir Þór
name: Björnsdóttir, Sigríður
Publisher: name: figshare
Year: 2025
Subjects: subject: Medicine
subject: Microbiology
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Neuroscience
subject: Biotechnology
subject: Ecology
subject: Immunology
subject: FOS: Clinical medicine
subject: Cancer
subject: Mental Health
subject: Infectious Diseases
subject: FOS: Health sciences
subject: Computational Biology

description: Additional file 6. A summary of the results from the ClonalFrameML analysis of recombination in the genome assemblies for all of the Clostridium septicum strains.
Association between hypertensive medication during pregnancy and risk of several maternal and neonatal outcomes in women with chronic hypertension: a population-based study
Creators: name: Cantarutti, Anna
name: Porcu, Gloria
name: Locatelli, Anna
name: Corrao, Giovanni
Publisher: name: Taylor & Francis
Year: 2022
Subjects: subject: Medicine
subject: Cell Biology
subject: Pharmacology
subject: Biotechnology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: Immunology
subject: FOS: Clinical medicine
subject: 19999 Mathematical Sciences not elsewhere classified
subject: FOS: Mathematics
subject: Science Policy
subject: Computational Biology

description: Several studies have reported an association between perinatal complications and the severity of the hypertensive disease. The increasing number of pregnancies complicated by hypertension and the small assurance about the perinatal effects of hypertensive drug use during pregnancy involves the need of studying the better management of hypertensive mothers. To evaluate the association between maternal use of antihypertensive drugs and maternal and neonatal outcomes in women with chronic hypertension. We conducted a population-based study including all deliveries of hypertensive women that occurred between 2007–2017 in the Lombardy region, Italy. We evaluated the risk of several maternal and neonatal outcomes among women who filled antihypertensive prescriptions within the 20th week of gestation. Propensity score stratification was used to account for key potential confounders. Out of 5,553 pregnancies, 2,138 were exposed to antihypertensive treatment. With respect to no-users, users of antihypertensive drugs showed an increased risk of preeclampsia (RR:1.68, 95%CI:1.42–1.99), low birth weight (1.30,1.14–1.48), and preterm birth (1.25,1.11–1.42). These results were consistent in a range of sensitivity and subgroup analyses. Early exposure to antihypertensive drugs in the first 20 weeks of gestation was associated with an increased risk of preeclampsia, low birth weight, and preterm birth.
Bathyergus Illiger 1811
Creators: name: Woods, Charles A.
Publisher: name: Zenodo
Year: 1993
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Mammalia
Rodentia
Bathyergidae
Bathyergus

description: Bathyergus Illiger, 1811. Prodr. Syst. Mamm. Avium., p. 86. TYPE SPECIES: Mus maritimus Gmelin, 1788 (= Mus suillus Schreber, 1782). SYNONYMS: Orycterus.
description: Published as part of Charles A. Woods, 1993, Order Rodentia - Suborder Hystricognathi, pp. 771-806 in Mammal Species of the World (2 nd Edition), Washington and London :Smithsonian Institution Press on page 771, DOI: 10.5281/zenodo.7353083
Stellar Diameters and Temperatures IV. Predicting Stellar Angular Diameters
Creators: name: Boyajian, Tabetha
name: van Belle, Gerard
name: von Braun, Kaspar
Publisher: name: arXiv
Year: 2013
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: The number of stellar angular diameter measurements has greatly increased over the past few years due to innovations and developments in the field of long baseline optical interferometry (LBOI). We use a collection of high-precision angular diameter measurements for nearby, main-sequence stars to develop empirical relations that allow the prediction of stellar angular sizes as a function of observed photometric color. These relations are presented for a combination of 48 broad-band color indices. We empirically show for the first time a dependence on metallicity to these relations using Johnson $(B-V)$ and Sloan $(g-r)$ colors. Our relations are capable of predicting diameters with a random error of less than 5% and represent the most robust and empirical determinations to stellar angular sizes to date.
description: Accepted for publication in AJ
Multiple Scales in Pati-Salam Unification Models
Creators: name: Hartmann, Florian
name: Kilian, Wolfgang
name: Schnitter, Karsten
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We investigate models where gauge unification (GUT) proceeds in steps that include Pati-Salam symmetry. Beyond the Standard Model, we allow for a well-defined set of small representations of the GUT gauge group. We show that all possible chains of Pati-Salam symmetry breaking can be realized in accordance with gauge-coupling unification. We identify, in particular, models with unification near the Planck scale, with intermediate left-right or SU(4) quark-lepton symmetries that are relevant for flavor physics, with new colored particles at accessible energies, and with an enlarged electroweak Higgs sector. We look both at supersymmetric and non-supersymmetric scenarios.
description: 48 pages, 11 figures, version accepted for publication in JHEP
Comparison of serum, EDTA plasma and P100 plasma for luminex-based biomarker multiplex assays in patients with chronic obstructive pulmonary disease in the SPIROMICS study
Creators: name: O’Neal, Wanda
name: Anderson, Wayne
name: Basta, Patricia
name: Carretta, Elizabeth
name: Doerschuk, Claire
name: Barr, R. Graham
name: Bleecker, Eugene
name: Christenson, Stephanie
name: Curtis, Jeffrey
name: Han, Meilan
name: Hansel, Nadia
name: Kanner, Richard
name: Kleerup, Eric
name: Martinez, Fernando
name: Miller, Bruce
name: Peters, Stephen
name: Rennard, Stephen
name: Scholand, Mary
name: Tal-Singer, Ruth
name: Woodruff, Prescott
name: Couper, David
name: Davis, Sonia
Publisher: name: Columbia University
Year: 2014
Subjects: Blood plasma--Analysis
Lungs--Diseases, Obstructive
Medicine

description: Background: As a part of the longitudinal Chronic Obstructive Pulmonary Disease (COPD) study, Subpopulations and Intermediate Outcome Measures in COPD study (SPIROMICS), blood samples are being collected from 3200 subjects with the goal of identifying blood biomarkers for sub-phenotyping patients and predicting disease progression. To determine the most reliable sample type for measuring specific blood analytes in the cohort, a pilot study was performed from a subset of 24 subjects comparing serum, Ethylenediaminetetraacetic acid (EDTA) plasma, and EDTA plasma with proteinase inhibitors (P100™). Methods: 105 analytes, chosen for potential relevance to COPD, arranged in 12 multiplex and one simplex platform (Myriad-RBM) were evaluated in duplicate from the three sample types from 24 subjects. The reliability coefficient and the coefficient of variation (CV) were calculated. The performance of each analyte and mean analyte levels were evaluated across sample types. Results: 20% of analytes were not consistently detectable in any sample type. Higher reliability and/or smaller CV were determined for 12 analytes in EDTA plasma compared to serum, and for 11 analytes in serum compared to EDTA plasma. While reliability measures were similar for EDTA plasma and P100 plasma for a majority of analytes, CV was modestly increased in P100 plasma for eight analytes. Each analyte within a multiplex produced independent measurement characteristics, complicating selection of sample type for individual multiplexes. Conclusions: There were notable detectability and measurability differences between serum and plasma. Multiplexing may not be ideal if large reliability differences exist across analytes measured within the multiplex, especially if values differ based on sample type. For some analytes, the large CV should be considered during experimental design, and the use of duplicate and/or triplicate samples may be necessary. These results should prove useful for studies evaluating selection of samples for evaluation of potential blood biomarkers.
Bathyergus janetta Thomas and Schwann 1904
Creators: name: Woods, Charles A.
Publisher: name: Zenodo
Year: 1993
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Mammalia
Rodentia
Bathyergidae
Bathyergus
Bathyergus janetta

description: Bathyergus janetta Thomas and Schwann, 1904. Abstr. Proc. Zool. Soc. Lond., 1904(2):6. TYPE LOCALITY: South Africa, NW Cape Prov., coastal Little Namaqualand, Port Nolloth. DISTRIBUTION: SW South Africa; S Namibia. SYNONYMS: inselbergensis, plowsi. COMMENTS: Ellerman et al. (1953) included janetta as a subspecies of suillus, but de Graaff (1975) regarded janetta and suillus as separate species.
description: Published as part of Charles A. Woods, 1993, Order Rodentia - Suborder Hystricognathi, pp. 771-806 in Mammal Species of the World (2 nd Edition), Washington and London :Smithsonian Institution Press on page 771, DOI: 10.5281/zenodo.7353083
description: {"references": ["de Graaff, G. 1975. Family Bathyergidae. Part 6.9. Pp. 1 - 5, in The mammals of Africa: An identification manual (J. Meester and H. W. Setzer, eds.) [issued 10 Dec 1975]. Smithsonian Institution Press, Washington, D. C., not continuously paginated."]}
title: Temporary seismic deployments on Bowdoin glacier, Northwest Greenland
Creators: name: Laboratory of Hydraulics, Hydrology and Glaciology (VAW) at ETH Zurich
Publisher: name: ETH Zurich
Year: 2019
Subjects: subject: Seismology

description: Temporary seismic deployments associated with project "Dynamic changes of tidewater outlet glaciers: Bowdoin glacier, Northwest Greenland"
Climate sensitivity in the Anthropocene
Creators: name: Previdi, Michael
name: Liepert, B. G.
name: Peteet, Dorothy M.
name: Hansen, James E.
name: Beerling, D. J.
name: Broccoli, A. J.
name: Frolking, S.
name: Galloway, J. N.
name: Heimann, M.
name: Le Quéré, C.
name: Levitus, S.
name: Ramaswamy, R.
Publisher: name: Columbia University
Year: 2013
Subjects: subject: Greenhouse gases
subject: Climatic changes--Effect of human beings on
subject: Climatic changes
subject: Environmental sciences
subject: Ecology
subject: FOS: Biological sciences
subject: Paleoclimatology

description: Climate sensitivity in its most basic form is defined as the equilibrium change in global surface temperature that occurs in response to a climate forcing, or externally imposed perturbation of the planetary energy balance.Within this general definition, several specific forms of climate sensitivity exist that differ in terms of the types of climate feedbacks they include. Based on evidence from Earth’s history, we suggest here that the relevant form of climate sensitivity in the Anthropocene (e.g. from which to base future greenhouse gas (GHG) stabilization targets) is the Earth system sensitivity including fast feedbacks from changes in water vapour, natural aerosols, clouds and sea ice, slower surface albedo feedbacks from changes in continental ice sheets and vegetation, and climate–GHG feedbacks from changes in natural (land and ocean) carbon sinks. Traditionally, only fast feedbacks have been considered (with the other feedbacks either ignored or treated as forcing), which has led to estimates of the climate sensitivity for doubled CO2 concentrations of about 3◦C. The 2×CO2 Earth system sensitivity is higher than this, being ∼4–6◦C if the ice sheet/vegetation albedo feedback is included in addition to the fast feedbacks, and higher still if climate–GHG feedbacks are also included. The inclusion of climate–GHG feedbacks due to changes in the natural carbon sinks has the advantage of more directly linking anthropogenic GHG emissions with the ensuing global temperature increase, thus providing a truer indication of the climate sensitivity to human perturbations. The Earth system climate sensitivity is difficult to quantify due to the lack of palaeo-analogues for the present-day anthropogenic forcing, and the fact that ice sheet and climate–GHG feedbacks have yet to become globally significant in the Anthropocene. Furthermore, current models are unable to adequately simulate the physics of ice sheet decay and certain aspects of the natural carbon and nitrogen cycles. Obtaining quantitative estimates of the Earth system sensitivity is therefore a high priority for future work.
Blockade of Treg derived TGF-β abrogates suppression of effector T cell function within the tumor microenvironment
Creators: name: Budhu, Sadna
name: Schaer, David
name: Li, Yongbiao
name: Houghton, Alan
name: Silverstein, Samuel C.
name: Merghoub, Taha
name: Wolchok, Jedd
Publisher: name: Columbia University
Year: 2013
Subjects: subject: Suppressor cells
subject: Melanoma--Immunological aspects
subject: Melanoma
subject: Tumors--Immunological aspects
subject: T cells
subject: Oncology
subject: Immunology
subject: FOS: Clinical medicine
subject: Cytology

description: Regulatory T cells (Treg) play a role in suppression of anti-melanoma immunity; however, the exact mechanism is poorly understood. Through intravital two photon microscopy, we found that Pmel-1 effectors engage in cell-cell interactions with tumor resident Tregs. To determine if contact between Tregs and T effectors (Teff) hinders killing of tumor cells in vivo, we utilized ex-vivo three-dimensional collagen-fibrin gel cultures of B16 melanoma cells. Collagen-fibrin gel cultures recapitulated the in vivo suppression, rendering the dissociated tumor resistant to killing by in vitro activated antigen specific Teff. In vivo depletion of Tregs in foxp3-DTR mice prior to tumor excision reversed the suppression. Additionally, In vivo modulation of intra-tumor Tregs suppressive function by GITR ligation had a similar effect, leading to ex-vivo tumor killing. Using neutralizing antibodies, we found that blocking TGF-β reversed the suppression. In addition, soluble factors from collagen-fibrin gel tumors do not inhibit killing suggesting that suppression is contact or proximity dependent. The CD8 Teff recovered from these gels exhibit a decrease in Granzyme B expression and an increase in expression of T cell exhaustion marker PD-1. These findings support the conclusion that intra-tumor contact with Tregs during the effector phase of the immune response is responsible for inhibiting anti-melanoma immunity in a TGF-β dependent manner, elucidating a novel way to target intratumoral Tregs.
Data and code associated with the manuscript: "Apparent nitrous acid dissociation across environmentally relevant temperatures in freshwater and seawater"
Creators: name: Borer, Benedict
name: Bi, Eric
name: Woosley, Ryan J.
name: Babbin, Andrew
Publisher: name: Zenodo
Year: 2023

description: Data and code associated with the manuscript: "Apparent nitrous acid dissociation across environmentally relevant temperatures in freshwater and seawater"
Estrategias de difusión de la actividad investigadora: el poder de la ciencia abierta
Creators: name: Arroyo-Machado, Wenceslao
Publisher: name: Zenodo
Year: 2022
Subjects: ciencia abierta
datos
Jupyter
GitHub
Zenodo

description: Presentación de la sesión "Estrategias de difusión de la actividad investigadora: el poder de la ciencia abierta" en la V Edición del curso "Identidad digital y reputación online para científicos".
General properties of the expansion methods of Lie algebras
Creators: name: Andrianopoli, Laura
name: Merino, Nelson
name: Nadal, Felip
name: Trigiante, Mario
Publisher: name: arXiv
Year: 2013
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: The study of the relation between Lie algebras and groups, and especially the derivation of new algebras from them, is a problem of great interest in mathematics and physics, because finding a new Lie group from an already known one also means that a new physical theory can be obtained from a known one. One of the procedures that allow to do so is called expansion of Lie algebras, and has been recently used in different physical applications - particularly in gauge theories of gravity. Here we report on further developments of this method, required to understand in a deeper way their consequences in physical theories. We have found theorems related to the preservation of some properties of the algebras under expansions that can be used as criteria and, more specifically, as necessary conditions to know if two arbitrary Lie algebras can be related by the some expansion mechanism. Formal aspects, such as the Cartan decomposition of the expanded algebras, are also discussed. Finally, an instructive example that allows to check explicitly all our theoretical results is also provided.
description: 2 figures
Estrategias de difusión de la actividad investigadora: el poder de la ciencia abierta
Creators: name: Arroyo-Machado, Wenceslao
Publisher: name: Zenodo
Year: 2021
Subjects: ciencia abierta
datos
Jupyter
GitHub
Zenodo

description: Presentación de la sesión "Estrategias de difusión de la actividad investigadora: el poder de la ciencia abierta" en la V Edición del curso "Identidad digital y reputación online para científicos".
Bathyergus suillus
Creators: name: Woods, Charles A.
Publisher: name: Zenodo
Year: 1993
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Mammalia
Rodentia
Bathyergidae
Bathyergus
Bathyergus suillus

description: Bathyergus suillus (Schreber, 1782). Die Säugethiere, 4:715. TYPE LOCALITY: South Africa, Cape of Good Hope. DISTRIBUTION: S South Africa. SYNONYMS: africana, intermedius, maritimus. COMMENTS: Includes intermedius (de Graaff, 1975:3).
description: Published as part of Charles A. Woods, 1993, Order Rodentia - Suborder Hystricognathi, pp. 771-806 in Mammal Species of the World (2 nd Edition), Washington and London :Smithsonian Institution Press on page 771, DOI: 10.5281/zenodo.7353083
description: {"references": ["de Graaff, G. 1975. Family Bathyergidae. Part 6.9. Pp. 1 - 5, in The mammals of Africa: An identification manual (J. Meester and H. W. Setzer, eds.) [issued 10 Dec 1975]. Smithsonian Institution Press, Washington, D. C., not continuously paginated."]}
Arf6 controls retromer traffic and intracellular cholesterol distribution via a phosphoinositide-based mechanism
Creators: name: Marquer, Catherine
name: Tian, Huasong
name: Yi, Julie
name: Bastien, Jayson
name: Dall'Armi, Claudia
name: Yang-Klingler, YoungJoo
name: Zhou, Bowen
name: Chan, Robin Barry
name: Paolo, Gilbert Di
Publisher: name: Columbia University
Year: 2016
Subjects: Biological transport
Phosphoinositides--Physiological effect
Guanosine triphosphatase
Biology

description: Small GTPases play a critical role in membrane traffic. Among them, Arf6 mediates transport to and from the plasma membrane, as well as phosphoinositide signalling and cholesterol homeostasis. Here we delineate the molecular basis for the link between Arf6 and cholesterol homeostasis using an inducible knockout (KO) model of mouse embryonic fibroblasts (MEFs). We find that accumulation of free cholesterol in the late endosomes/lysosomes of Arf6 KO MEFs results from mistrafficking of Niemann–Pick type C protein NPC2, a cargo of the cation-independent mannose-6-phosphate receptor (CI-M6PR). This is caused by a selective increase in an endosomal pool of phosphatidylinositol-4-phosphate (PI4P) and a perturbation of retromer, which controls the retrograde transport of CI-M6PR via sorting nexins, including the PI4P effector SNX6. Finally, reducing PI4P levels in KO MEFs through independent mechanisms rescues aberrant retromer tubulation and cholesterol mistrafficking. Our study highlights a phosphoinositide-based mechanism for control of cholesterol distribution via retromer.
The spin-state crossover and low-temperature magnetic state in yttrium doped Pr$_{0.7}$Ca$_{0.3}$CoO$_3$
Creators: name: Knizek, K.
name: Hejtmanek, J.
name: Marysko, M.
name: Novak, P.
name: Santava, E.
name: Jirak, Z.
name: Naito, T.
name: Fujishiro, H.
name: Cruz, C. R. dela
Publisher: name: arXiv
Year: 2013
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The structural and magnetic properties of two mixed-valence cobaltites with formal population of 0.30 Co$^{4+}$ ions per f.u., (Pr$_{1-y}$Y$_{y}$)$_{0.7}$Ca$_{0.3}$CoO$_3$ ($y=0$ and 0.15), have been studied down to very low temperatures by means of the high-resolution neutron diffraction, SQUID magnetometry and heat capacity measurements. The results are interpreted within the scenario of the spin-state crossover from a room-temperature mixture of the intermediate spin Co$^{3+}$ and low spin Co$^{4+}$ (IS/LS) at the to the LS/LS mixture in the sample ground states. In contrast to the yttrium free $y=0$ that retains the metallic-like character and exhibits ferromagnetic ordering below 55 K, the doped system $y=0.15$ undergoes a first-order metal-insulator transition at 132 K, during which not only the crossover to low spin states but also a partial electron transfer from Pr$^{3+}$ 4f to cobalt 3d states take place simultaneously. Taking into account the non-magnetic character of LS Co$^{3+}$, such valence shift electronic transition causes a magnetic dilution, formally to 0.12 LS Co$^{4+}$ or 0.12 $t_{2g}$ hole spins per f.u., which is the reason for an insulating, highly non-uniform magnetic ground state without long-range order. Nevertheless, even in that case there exists a relatively strong molecular field distributed over all the crystal lattice. It is argued that the spontaneous FM order in $y=0$ and the existence of strong FM correlations in $y=0.15$ apparently contradict the single $t_{2g}$ band character of LS/LS phase. The explanation we suggest relies on a model of the defect induced, itinerant hole mediated magnetism, where the defects are identified with the magnetic high-spin Co$^{3+}$ species stabilized near oxygen vacancies.
குறுந்தொகையில் தோழியின் மாண்புகள்
Creators: name: பிஎச்.டி.,, முனைவர் தி. மணிமொழி
Publisher: name: figshare
Year: 2022
Subjects: subject: 200520 Indian Literature
subject: FOS: Languages and literature
subject: 200315 Indian Languages

description: உலகின் தொன்மையான மொழிகளில் தமிழ் மொழி முதன்மையானதாகும். தமிழ் மொழி எழுத்துக்கும் சொல்லுக்கு மட்டுமின்றி வாழ்க்கைக்கும் இலக்கணம் கூறியுள்ளது இலக்கியங்கள் வெளிப்படுத்தும் கருவியாக விளங்குகின்றன அந்த வகையில் நம் தொன்மையான சங்க இலக்கியத்தில் அக வாழ்வியல் கூறுகள் சிறப்பாக பதிவு செய்யப்பட்டுள்ளனர் அதில் தோழியின் மாண்பு அமைந்துள்ள விதத்தை ஆராய்வதாக இக்கட்டுரை அமைகிறது.
Healthy Moms, Healthy Babies MIHP Pilot Project
Creators: name: Meeks, Olivia
name: Jacob, Robin T
name: Friedman, Megan Foster
Publisher: name: Open Science Framework
Year: 2021
Subjects: subject: Public Health
subject: Medicine and Health Sciences
subject: Social Work
subject: FOS: Sociology
subject: Policy Design, Analysis, and Evaluation
subject: Health Policy
subject: Social and Behavioral Sciences
subject: Nursing
subject: FOS: Health sciences
subject: Public Affairs, Public Policy and Public Administration
subject: Maternal, Child Health and Neonatal Nursing
subject: Maternal and Child Health

description: This is a pre-registration analysis plan for the Youth Policy Lab's evaluation of the Healthy Moms Healthy Babies MIHP Pilot Project. It contains information on: program background, study design, data sources, analytic strategy, and statistical methods. The PAP was updated in April 2023 to include the addition of a new data collection instrument to capture more information on provider-level outcomes.
Age-Related Differences in Cortical Thickness Vary by Socioeconomic Status
Creators: name: Piccolo, Luciane R.
name: Merz, Emily C.
name: He, Xiaofu
name: Sowell, Elizabeth R.
name: Noble, Kimberly G.
name: Pediatric Imaging, Neurocognition
Publisher: name: Columbia University
Year: 2016
Subjects: subject: Social status
subject: Brain--Growth
subject: Neurosciences
subject: FOS: Clinical medicine

description: Recent findings indicate robust associations between socioeconomic status (SES) and brain structure in children, raising questions about the ways in which SES may modify structural brain development. In general, cortical thickness and surface area develop in nonlinear patterns across childhood and adolescence, with developmental patterns varying to some degree by cortical region. Here, we examined whether age-related nonlinear changes in cortical thickness and surface area varied by SES, as indexed by family income and parental education. We hypothesized that SES disparities in age-related change may be particularly evident for language- and literacy-supporting cortical regions. Participants were 1148 typically-developing individuals between 3 and 20 years of age. Results indicated that SES factors moderate patterns of age-associated change in cortical thickness but not surface area. Specifically, at lower levels of SES, associations between age and cortical thickness were curvilinear, with relatively steep age-related decreases in cortical thickness earlier in childhood, and subsequent leveling off during adolescence. In contrast, at high levels of SES, associations between age and cortical thickness were linear, with consistent reductions across the age range studied. Notably, this interaction was prominent in the left fusiform gyrus, a region that is critical for reading development. In a similar pattern, SES factors significantly moderated linear age-related change in left superior temporal gyrus, such that higher SES was linked with steeper age-related decreases in cortical thickness in this region. These findings suggest that SES may moderate patterns of age-related cortical thinning, especially in language- and literacy-supporting cortical regions.
Indigenous Ecological Knowledge and Pastoralist Perception on Rangeland Management and Degradation in Guji Zone of South Ethiopia
Creators: name: Abate, Teshome
Publisher: name: Columbia University
Year: 2016
Subjects: Guji (African people)
Range management
Rangelands
Rangeland health
Droughts
Sustainable development
Sustainability

description: The study was conducted to explore range management practice, pastoralists’ views on degradation and its impact on local livelihood in south Ethiopia. The data was gathered from three pastoral and agro-pastoral districts of Guji zone using structure questionnaires, key informants and direct observation. The study shows the use of enclosure and herd mobility in basic traditional practice as well as the effectiveness of community indigenous knowledge is in assessing and monitoring rangeland degradation. Communities used numerous indicators to explain local level degradation, finding drought to be a primary cause in the decline in household livestock assets, expansion of aridity, and rising threat to food security. The study shows an alarming increase in degradation and the urgency of measures to halt this trend.
On the Structure of Bispecial Sturmian Words
Creators: name: Fici, Gabriele
Publisher: name: arXiv
Year: 2013
Subjects: subject: Formal Languages and Automata Theory (cs.FL)
subject: Discrete Mathematics (cs.DM)
subject: FOS: Computer and information sciences
subject: 68R15

description: A balanced word is one in which any two factors of the same length contain the same number of each letter of the alphabet up to one. Finite binary balanced words are called Sturmian words. A Sturmian word is bispecial if it can be extended to the left and to the right with both letters remaining a Sturmian word. There is a deep relation between bispecial Sturmian words and Christoffel words, that are the digital approximations of Euclidean segments in the plane. In 1997, J. Berstel and A. de Luca proved that \emph{palindromic} bispecial Sturmian words are precisely the maximal internal factors of \emph{primitive} Christoffel words. We extend this result by showing that bispecial Sturmian words are precisely the maximal internal factors of \emph{all} Christoffel words. Our characterization allows us to give an enumerative formula for bispecial Sturmian words. We also investigate the minimal forbidden words for the language of Sturmian words.
description: arXiv admin note: substantial text overlap with arXiv:1204.1672
Integrable and superintegrable Hamiltonian systems with four dimensional real Lie algebras as symmetry of the systems
Creators: name: Abedi-Fardad, J.
name: Rezaei-Aghdam, A.
name: Haghighatdoost, Gh.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We construct integrable and superintegrable Hamiltonian systems using the realizations of four dimensional real Lie algebras as a symmetry of the system with the phase space R4 and R6. Furthermore, we construct some integrable and superintegrable Hamiltonian systems for which the symmetry Lie group is also the phase space of the system.
description: 11 pages