cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Verrucomicrobia Are Candidates for Polysaccharide-Degrading Bacterioplankton in an Arctic Fjord of Svalbard
Creators: name: Steen, A. D.
name: Teske, A.
name: Cardman, Z.
name: Arnosti, C.
name: Cox, C.
name: Ziervogel, K.
name: Durbin, A.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2014

description: ABSTRACT In Arctic marine bacterial communities, members of the phylum Verrucomicrobia are consistently detected, although not typically abundant, in 16S rRNA gene clone libraries and pyrotag surveys of the marine water column and in sediments. In an Arctic fjord (Smeerenburgfjord) of Svalbard, members of the Verrucomicrobia , together with Flavobacteria and smaller proportions of Alpha - and Gammaproteobacteria , constituted the most frequently detected bacterioplankton community members in 16S rRNA gene-based clone library analyses of the water column. Parallel measurements in the water column of the activities of six endo-acting polysaccharide hydrolases showed that chondroitin sulfate, laminarin, and xylan hydrolysis accounted for most of the activity. Several Verrucomicrobia water column phylotypes were affiliated with previously sequenced, glycoside hydrolase-rich genomes of individual Verrucomicrobia cells that bound fluorescently labeled laminarin and xylan and therefore constituted candidates for laminarin and xylan hydrolysis. In sediments, the bacterial community was dominated by different lineages of Verrucomicrobia , Bacteroidetes , and Proteobacteria but also included members of multiple phylum-level lineages not observed in the water column. This community hydrolyzed laminarin, xylan, chondroitin sulfate, and three additional polysaccharide substrates at high rates. Comparisons with data from the same fjord in the previous summer showed that the bacterial community in Smeerenburgfjord changed in composition, most conspicuously in the changing detection frequency of Verrucomicrobia in the water column. Nonetheless, in both years the community hydrolyzed the same polysaccharide substrates.
Alternative Fecal Indicators and Their Empirical Relationships with Enteric Viruses, Salmonella enterica, and Pseudomonas aeruginosa in Surface Waters of a Tropical Urban Catchment
Creators: name: Gin, K. Y. H.
name: Liang, L.
name: Goh, S. G.
name: Chang, S. Y.
name: Sobsey, M. D.
name: Fang, H. M.
name: Bayen, S.
name: Rose, J. B.
name: Vergara, G. G. R. V.
name: Rezaeinejad, S.
name: Lee, W. A.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2015

description: ABSTRACT The suitability of traditional microbial indicators (i.e., Escherichia coli and enterococci) has been challenged due to the lack of correlation with pathogens and evidence of possible regrowth in the natural environment. In this study, the relationships between alternative microbial indicators of potential human fecal contamination ( Bacteroides thetaiotaomicron , Methanobrevibacter smithii , human polyomaviruses [HPyVs], and F+ and somatic coliphages) and pathogens ( Salmonella spp., Pseudomonas aeruginosa , rotavirus, astrovirus, norovirus GI, norovirus GII, and adenovirus) were compared with those of traditional microbial indicators, as well as environmental parameters (temperature, conductivity, salinity, pH, dissolved oxygen, total organic carbon, total suspended solids, turbidity, total nitrogen, and total phosphorus). Water samples were collected from surface waters of urban catchments in Singapore. Salmonella and P. aeruginosa had significant positive correlations with most of the microbial indicators, especially E. coli and enterococci. Norovirus GII showed moderately strong positive correlations with most of the microbial indicators, except for HPyVs and coliphages. In general, high geometric means and significant correlations between human-specific markers and pathogens suggest the possibility of sewage contamination in some areas. The simultaneous detection of human-specific markers (i.e., B. thetaiotaomicron , M. smithii , and HPyVs) with E. coli and enterococcus supports the likelihood of recent fecal contamination, since the human-specific markers are unable to regrow in natural surface waters. Multiple-linear-regression results further confirm that the inclusion of M. smithii and HPyVs, together with traditional indicators, would better predict the occurrence of pathogens. Further study is needed to determine the applicability of such models to different geographical locations and environmental conditions.
Development of a Matrix Tool for the Prediction of Vibrio Species in Oysters Harvested from North Carolina
Creators: name: Oliver, J. D.
name: Noble, R. T.
name: Fowler, P.
name: Ayrapetyan, M.
name: Froelich, B. A.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2015

description: ABSTRACT The United States has federal regulations in place to reduce the risk of seafood-related infection caused by the estuarine bacteria Vibrio vulnificus and Vibrio parahaemolyticus . However, data to support the development of regulations have been generated in a very few specific regions of the nation. More regionally specific data are needed to further understand the dynamics of human infection relating to shellfish-harvesting conditions in other areas. In this study, oysters and water were collected from four oyster harvest sites in North Carolina over an 11-month period. Samples were analyzed for the abundances of total Vibrio spp., V. vulnificus , and V. parahaemolyticus ; environmental parameters, including salinity, water temperature, wind velocity, and precipitation, were also measured simultaneously. By utilizing these data, preliminary predictive management tools for estimating the abundance of V. vulnificus bacteria in shellfish were developed. This work highlights the need for further research to elucidate the full suite of factors that drive V. parahaemolyticus abundance.
Cosmological particle creation in a hadronic fluid
Creators: name: Bilic, Neven
name: Tolic, Dijana
Publisher: name: arXiv
Year: 2014
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Acoustic perturbations in an expanding hadronic fluid at temperatures below the chiral transition point represent massless pions propagating in curved spacetime geometry. In comoving coordinates the corresponding analog metric tensor describes a hyperbolic FRW spacetime. We study the analog cosmological particle creation of pions below the critical point of the chiral phase transition. We compare the cosmological creation spectrum with the spectrum of analog Hawking radiation at the analog trapping horizon.
description: 13 pages, 4 figures, revised to match the version published in Phys. Rev. D., section IIB rewritten, section IIIC expanded, discussion on adiabaticity expanded and clarified, three references added, results unchanged
When Emulating a Trial, Do as the Trialists Do: Missteps in Estimating Relative Effectiveness of a Severe Acute Respiratory Syndrome Coronavirus 2 Vaccine Booster Dose
Creators: name: Breskin, A.
name: Wirth, K.E.
name: Feinstein, L.
name: Edwards, J.K.
Publisher: name: NLM (Medline)
Year: 2023

description: TO THE EDITOR—We thank the authors for their thoughtful comments regarding our original paper on the desirability of outcome ranking (DOOR). We regret the absence of a description of appropriate methodology for confidence interval (CI) estimation for the DOOR probability and the incorrectly reported CI. We agree that CI estimation using methodology for a binomial proportion is incorrect. We had provided initial recommendations regarding CI estimation using the bootstrap in a subsequent paper and applied and noted this approach in the first and future studies that we conducted using the DOOR.
БУГУНГИ КУНДА СОҲАДА ГЛОБАЛ НАВИГАЦИЯ ЙЎЛДОШ ТИЗИМИЛАРИНИНГ (GLONASS) РИВОЖЛАНИШИ
Creators: name: Ниёзов Қувончбек Холмирза ўғли Мустақил тадқиқотчи "Ўздаверлойиҳа" ДИЛИ Фарғона бўлинмаси директори
name: Абдурахмонов Сарвар Нарзуллаевич "ТИҚХММИ" МТУ доценти
name: Кодиров Шавкатжон Бахронович Ўзбекистон Республикаси Гидрометеорология хизмати маркази бўлими бошлиғи
Publisher: name: Zenodo
Year: 2024

description: Ушбу тезиснинг асосий мақсади глобал навигацион тизимларнинг ривожланиш босқичлари, уларнинг ишлаб чиқаришда тутган ўрни ва Республикамизда йўлдошли кузатув методлари ёрдамида кузатиш ишларини таҳлил қилиш, унинг қўлланилиш методикаси билан таништириш ва бу методикани  амалиётга татбиқ этиш.

Калит сўзлар: Глобал, навигация, GNSS, ctuvtyn, ГНЙТ, йўлдошли технология, GLONASS, GPS, дифференциал фаза.
Unified theory in the worldline approach
Creators: name: Edwards, James P.
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We explore unified field theories based on the gauge groups $SU(5)$ and $SO(10)$ using the worldline approach for chiral fermions with a Wilson loop coupling to a background gauge field. Representing path ordering and chiral projection operators with functional integrals has previously reproduced the sum over the chiralities and representations of standard model particles in a compact way. This paper shows that for $SU(5)$ the $\bar{\mathbf{5}}$ and $\mathbf{10}$ representations -- into which the Georgi-Glashow model places the left-handed fermionic content of the standard model -- appear naturally and with the familiar chirality. We carry out the same analysis for flipped $SU(5)$ and uncover a link to $SO(10)$ unified theory. We pursue this by exploring the $SO(10)$ theory in the same framework, the less established unified theory based on $SU(6)$ and briefly consider the Pati-Salam model using $SU(4) \!\times \!SU(2)\! \times\! SU(2)$.
description: 10 Pages. Published version
Diversity of Methane-Cycling Archaea in Hydrothermal Sediment Investigated by General and Group-Specific PCR Primers
Creators: name: Teske, Andreas P.
name: Lever, Mark A.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2015

description: ABSTRACT The zonation of anaerobic methane-cycling Archaea in hydrothermal sediment of Guaymas Basin was studied by general primer pairs (mcrI, ME1/ME2, mcrIRD) targeting the alpha subunit of methyl coenzyme M reductase gene ( mcrA ) and by new group-specific mcrA and 16S rRNA gene primer pairs. The mcrIRD primer pair outperformed the other general mcrA primer pairs in detection sensitivity and phylogenetic coverage. Methanotrophic ANME-1 Archaea were the only group detected with group-specific primers only. The detection of 14 mcrA lineages surpasses the diversity previously found in this location. Most phylotypes have high sequence similarities to hydrogenotrophs, methylotrophs, and anaerobic methanotrophs previously detected at Guaymas Basin or at hydrothermal vents, cold seeps, and oil reservoirs worldwide. Additionally, five mcrA phylotypes belonging to newly defined lineages are detected. Two of these belong to deeply branching new orders, while the others are new species or genera of Methanopyraceae and Methermicoccaceae . Downcore diversity decreases from all groups detected in the upper 6 cm (∼2 to 40°C, sulfate measurable to 4 cm) to only two groups below 6 cm (>40°C). Despite the presence of hyperthermophilic genera ( Methanopyrus , Methanocaldococcus ) in cooler surface strata, no genes were detected below 10 cm (≥60°C). While mcrA -based and 16S rRNA gene-based community compositions are generally congruent, the deeply branching mcrA cannot be assigned to specific 16S rRNA gene lineages. Our study indicates that even among well-studied metabolic groups and in previously characterized model environments, major evolutionary branches are overlooked. Detecting these groups by improved molecular biological methods is a crucial first step toward understanding their roles in nature.
Identification of Anthraquinone-Degrading Bacteria in Soil Contaminated with Polycyclic Aromatic Hydrocarbons
Creators: name: Adrion, Alden C.
name: Gold, Avram
name: Rodgers-Vieira, Elyse A.
name: Zhang, Zhenfa
name: Aitken, Michael D.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2015

description: ABSTRACT Quinones and other oxygenated polycyclic aromatic hydrocarbons (oxy-PAHs) are toxic and/or genotoxic compounds observed to be cocontaminants at PAH-contaminated sites, but their formation and fate in contaminated environmental systems have not been well studied. Anthracene-9,10-dione (anthraquinone) has been found in most PAH-contaminated soils and sediments that have been analyzed for oxy-PAHs. However, little is known about the biodegradation of oxy-PAHs, and no bacterial isolates have been described that are capable of growing on or degrading anthraquinone. PAH-degrading Mycobacterium spp. are the only organisms that have been investigated to date for metabolism of a PAH quinone, 4,5-pyrenequinone. We utilized DNA-based stable-isotope probing (SIP) with [U- 13 C]anthraquinone to identify bacteria associated with anthraquinone degradation in PAH-contaminated soil from a former manufactured-gas plant site both before and after treatment in a laboratory-scale bioreactor. SIP with [U- 13 C]anthracene was also performed to assess whether bacteria capable of growing on anthracene are the same as those identified to grow on anthraquinone. Organisms closely related to Sphingomonas were the most predominant among the organisms associated with anthraquinone degradation in bioreactor-treated soil, while organisms in the genus Phenylobacterium comprised the majority of anthraquinone degraders in the untreated soil. Bacteria associated with anthracene degradation differed from those responsible for anthraquinone degradation. These results suggest that Sphingomonas and Phenylobacterium species are associated with anthraquinone degradation and that anthracene-degrading organisms may not possess mechanisms to grow on anthraquinone.
MECHANICAL STRENGTH OF SELF COMPACTING MORTAR AT HIGH TEMPERATURES
Creators: name: Amar, Benyahia
Publisher: name: Zenodo
Year: 2024

description: Nowadays, the ecological trend is directed towards restricting the utilization of natural resources materials in the construction sector. This study examines the impact of high temperatures on the mechanical properties of self compacting mortars (SCMs) that include marble dust (MD). For this aim, four SCMs were prepared with the objective of replacing the cement with MD at varying proportionsof 0, 10, 15 and 20% by weight and compared to reference mortar. The mechanical properties of SCMs are investigated separately at different curing days (2, 7, 28-d) and high temperatures (300°C, 600°C and 900°C) over a period of 1hour. Based on the results, it was established that maintaining a temperature of 300°C is crucial for achieving optimal mechanical properties in the cured SCMs, as any temperature beyond this range leads to a decline in its performance.
Landscape Position Influences Microbial Composition and Function via Redistribution of Soil Water across a Watershed
Creators: name: McGlynn, Brian L.
name: Du, Zhe
name: Jones, Ryan T.
name: Li, Xu
name: Emanuel, Ryan E.
name: Riveros-Iregui, Diego A.
name: Dore, John E.
name: McDermott, Timothy R.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2015

description: ABSTRACT Subalpine forest ecosystems influence global carbon cycling. However, little is known about the compositions of their soil microbial communities and how these may vary with soil environmental conditions. The goal of this study was to characterize the soil microbial communities in a subalpine forest watershed in central Montana (Stringer Creek Watershed within the Tenderfoot Creek Experimental Forest) and to investigate their relationships with environmental conditions and soil carbonaceous gases. As assessed by tagged Illumina sequencing of the 16S rRNA gene, community composition and structure differed significantly among three landscape positions: high upland zones (HUZ), low upland zones (LUZ), and riparian zones (RZ). Soil depth effects on phylogenetic diversity and β-diversity varied across landscape positions, being more evident in RZ than in HUZ. Mantel tests revealed significant correlations between microbial community assembly patterns and the soil environmental factors tested (water content, temperature, oxygen, and pH) and soil carbonaceous gases (carbon dioxide concentration and efflux and methane concentration). With one exception, methanogens were detected only in RZ soils. In contrast, methanotrophs were detected in all three landscape positions. Type I methanotrophs dominated RZ soils, while type II methanotrophs dominated LUZ and HUZ soils. The relative abundances of methanotroph populations correlated positively with soil water content ( R = 0.72, P < 0.001) and negatively with soil oxygen ( R = −0.53, P = 0.008). Our results suggest the coherence of soil microbial communities within and differences in communities between landscape positions in a subalpine forested watershed that reflect historical and contemporary environmental conditions.
1 Brief an Hans Georg Naegeli
Brief an Nägeli ...
Creators: name: Chladni, Ernst Florens Friedrich
Publisher: name: [s.n.]
Year: 1810

description: von J. [Ernst] F[lorens Friedrich] Chladni
description: Abschrift von Hermann Nägeli
description: Initialen wohl versehentlich J.F. statt E.F. oder F.F., möglicherweise ein Abschreibfehler
Additional file 4 of Fever and health-seeking behaviour among migrants living along the Thai-Myanmar border: a mixed-methods study
Creators: name: Khirikoekkong, Napat
name: Asarath, Supa-at
name: Munruchaitrakun, Mayreerat
name: Blay, Naw
name: Waithira, Naomi
name: Cheah, Phaik Yeong
name: Nosten, François
name: Lubell, Yoel
name: Landier, Jordi
name: Althaus, Thomas
Publisher: name: figshare
Year: 2023
Subjects: subject: Medicine
subject: Biotechnology
subject: Sociology
subject: FOS: Sociology
subject: Science Policy

description: Additional file 4. Supplementary study information. The PDF document contains additional information, and insights of the study, which include What is already known? What are the new findings? What do the new findings imply? Strength and Limitations of the study.
Variation in the Microbiota of Ixodes Ticks with Regard to Geography, Species, and Sex
Creators: name: Juliano, Jonathan J.
name: Roe, R. Michael
name: Ponnusamy, Loganathan
name: Brinkerhoff, R. Jory
name: Keeler, Corinna
name: Gonzalez, Antonio
name: Falco, Richard C.
name: Van Treuren, Will
name: Emch, Michael
name: Apperson, Charles S.
name: Knight, Rob
name: Parobek, Christian M.
name: Hathaway, Nicholas
name: Bailey, Jeffrey A.
name: Andreadis, Theodore G.
name: Meshnick, Steven R.
name: Ziegler, Lorenza Beati
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2015

description: ABSTRACT Ixodes scapularis is the principal vector of Lyme disease on the East Coast and in the upper Midwest regions of the United States, yet the tick is also present in the Southeast, where Lyme disease is absent or rare. A closely related species, I. affinis , also carries the pathogen in the South but does not seem to transmit it to humans. In order to better understand the geographic diversity of the tick, we analyzed the microbiota of 104 adult I. scapularis and 13 adult I. affinis ticks captured in 19 locations in South Carolina, North Carolina, Virginia, Connecticut, and New York. Initially, ticks from 4 sites were analyzed by 454 pyrosequencing. Subsequently, ticks from these sites plus 15 others were analyzed by sequencing with an Illumina MiSeq machine. By both analyses, the microbiomes of female ticks were significantly less diverse than those of male ticks. The dissimilarity between tick microbiomes increased with distance between sites, and the state in which a tick was collected could be inferred from its microbiota. The genus Rickettsia was prominent in all locations. Borrelia was also present in most locations and was present at especially high levels in one site in western Virginia. In contrast, members of the family Enterobacteriaceae were very common in North Carolina I. scapularis ticks but uncommon in I. scapularis ticks from other sites and in North Carolina I. affinis ticks. These data suggest substantial variations in the Ixodes microbiota in association with geography, species, and sex.
On Quantum Tangential Spacetime as a finite Hilbert-Space
Creators: name: Döring, Holger
Publisher: name: Zenodo
Year: 2024

description: Nature knows no zero. On a fundamental level there is a minimal length. If there has to be a sort of quantum-spacetime it can not include fourvectors but must be described in tensor-form from first principles. Every coordinate, even in tangential spacetime without gravity-force has constant components in other dimensional directions, which can‘t be set to zero but must be defined over Planck-lenghts. In this case tangential spacetime has to be rewritten in a corrected form. This rewriting will be done. Maybe, from this calculation there can later derived a consistent version of quantum gravity, which leads to finite physical states in this theory. In  , there is ergo constructed a Frobenius-scalarproduct of matrices and therefore a finite Hilbert-space. A Hilbert space is a real or complex vector space  with a dot product , which is complete with respect to the norm induced by the dot product, i.e. in which every Cauchy sequence converges. A Hilbert space is therefore a complete pre-Hilbert space. Therefore the matrix space K (m × n) of the real or complex matrices with the Frobenius -scalar product is a Hilbertspace.
Open Science. Cosa succede in Europa (e a che punto siamo)
Creators: name: Giglia, Elena
Publisher: name: Zenodo
Year: 2022
Subjects: Open Science, Piano Nazionale scienza aperta

description: Tenendo il Piano nazionale della scienza aperta in controluce, proveremo a riflettere su cosa c'è, cosa manca, e cosa potremmo fare insieme per cercare di colmare il ritardo che l'Italia sconta sulle pratiche Open e FAIR in Europa.
Iteratively reweighted adaptive lasso for conditional heteroscedastic time series with applications to AR-ARCH type processes
Creators: name: Ziel, Florian
Publisher: name: arXiv
Year: 2015
Subjects: subject: Methodology (stat.ME)
subject: Computational Finance (q-fin.CP)
subject: Applications (stat.AP)
subject: Computation (stat.CO)
subject: Machine Learning (stat.ML)
subject: FOS: Computer and information sciences
subject: FOS: Economics and business

description: Shrinkage algorithms are of great importance in almost every area of statistics due to the increasing impact of big data. Especially time series analysis benefits from efficient and rapid estimation techniques such as the lasso. However, currently lasso type estimators for autoregressive time series models still focus on models with homoscedastic residuals. Therefore, an iteratively reweighted adaptive lasso algorithm for the estimation of time series models under conditional heteroscedasticity is presented in a high-dimensional setting. The asymptotic behaviour of the resulting estimator is analysed. It is found that the proposed estimation procedure performs substantially better than its homoscedastic counterpart. A special case of the algorithm is suitable to compute the estimated multivariate AR-ARCH type models efficiently. Extensions to the model like periodic AR-ARCH, threshold AR-ARCH or ARMA-GARCH are discussed. Finally, different simulation results and applications to electricity market data and returns of metal prices are shown.
Multiple Forensic Interviews During Investigations of Child Sexual Abuse: A Cost-Effectiveness Analysis
Creators: name: Runyan, Desmond K.
name: Foster, E. Michael
name: Pierce, Matthew W.
name: Berkoff, Molly C.
name: Block, Stephanie D.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2013

description: In cases of suspected child sexual abuse (CSA) some professionals routinely recommend multiple interviews by the same interviewer because any additional details provided might improve decision-making and increase perpetrator convictions. We analyzed alternative policies about child interviewing to estimate the probability that a policy of all children receiving multiple interviews will increase criminal convictions and better protect children. Using decision analysis, we prepared a decision tree reflecting the structure through which a case of possible CSA passes through the health care, welfare, and legal systems with an estimated probability of conviction of the offender. We reviewed the CSA disclosure, criminal justice, and child welfare literature to obtain estimates for the median and range of rates for the steps of disclosure, substantiation, criminal charges, and conviction. Using the R statistical package, our decision analysis model was populated using literature-based estimates. Once the model was populated, we simulated the experiences of 1,000 cases at 250 sets of plausible parameter values representing different hypothetical communities. Multiple interviews increase the likelihood that an offender will be convicted by 6.1% in the average community. Simulations indicate that a policy in which all children seen for a CSA medical evaluation receive multiple interviews would cost an additional $100,000 for each additional conviction. We estimate that approximately 17 additional children would need to be interviewed on more than one occasion to yield one additional conviction. A policy of multiple interviews has implications for the children, for the costs of care, for protecting other children, and for the risk of false prosecution.
A gender approach to work ability and its relationship to professional and domestic work hours among nursing personnel
Creators: name: Portela, Luciana Fernandes
name: Landsbergis, Paul
name: Banks, Bahby
name: Griep, Rosane Harter
name: Fischer, Frida Marina
name: Rotenberg, Lúcia
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2008

description: The association between working hours and work ability was examined in a cross sectional study of male (N=156) and female (N=1092) nurses in three public hospitals. Working hours were considered in terms of their professional and domestic hours per week and their combined impact; total work load. Logistic regression analysis showed a significant association between total work load and inadequate work ability index (WAI) for females only. Females reported a higher proportion of inadequate WAI, fewer professional work hours but longer domestic work hours. There were no significant differences in total work load by gender. The combination of professional and domestic work hours in females seemed to best explain their lower work ability. The findings suggest that investigations into female well-being need to consider their total work load. Our male sample may have lacked sufficient power to detect a relationship between working hours and work ability.
Evolution of magnetic, transport, and thermal properties in Na$_{4-x}$Ir$_3$O$_8$
Creators: name: Balodhi, Ashiwini
name: Thamizhavel, A.
name: Singh, Yogesh
Publisher: name: arXiv
Year: 2014
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The hyper-kagome material Na$_4$Ir$_3$O$_8$ is a three-dimensional spin-liquid candidate proximate to a quantum critical point (QCP). We present a comprehensive study of the structure, magnetic susceptibility $χ$, heat capacity $C$, and electrical transport on polycrystalline samples of the doped hyper-kagome material Na$_{4-x}$Ir$_3$O$_8$ ($x \approx 0, 0.1, 0.3, 0.7)$. Materials with $x\leq 0.3$ are found to be Mott insulators with strong antiferromagnetic interactions and no magnetic ordering down to $T = 2$ K\@. All samples show irreversibility below $T \approx 6$ K between the zero-field-cooled and field-cooled magnetization measured in low fields ($H = 0.050$ T) suggesting a frozen low temperature state although no corresponding anomaly is seen in the heat capacity. The $x = 0.7$ sample shows $ρ(T)$ which weakly increases with decreasing temperature $T$, nearly $T$ independent $χ$, a linear in $T$ contribution to the low temperature $C$, and a Wilson ratio $R_W \approx 7$ suggesting anomalous semi-metallic behavior.
description: 6 pages, 5 figures, 2 tables
Land use change on household farms in the Ecuadorian Amazon: Design and implementation of an agent-based model
Creators: name: Mena, Carlos F.
name: Malanson, George P.
name: Frizzelle, Brian G.
name: Xiaozheng, Yao
name: Walsh, Stephen J.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2011

description: This paper describes the design and implementation of an Agent-Based Model (ABM) used to simulate land use change on household farms in the Northern Ecuadorian Amazon (NEA). The ABM simulates decision-making processes at the household level that is examined through a longitudinal, socio-economic and demographic survey that was conducted in 1990 and 1999. Geographic Information Systems (GIS) are used to establish spatial relationships between farms and their environment, while classified Landsat Thematic Mapper (TM) imagery is used to set initial land use/land cover conditions for the spatial simulation, assess from-to land use/land cover change patterns, and describe trajectories of land use change at the farm and landscape levels. Results from prior studies in the NEA provide insights into the key social and ecological variables, describe human behavioral functions, and examine population-environment interactions that are linked to deforestation and agricultural extensification, population migration, and demographic change. Within the architecture of the model, agents are classified as active or passive. The model comprises four modules, i.e., initialization, demography, agriculture, and migration that operate individually, but are linked through key household processes. The main outputs of the model include a spatially-explicit representation of the land use/land cover on survey and non-survey farms and at the landscape level for each annual time-step, as well as simulated socio-economic and demographic characteristics of households and communities. The work describes the design and implementation of the model and how population-environment interactions can be addressed in a frontier setting. The paper contributes to land change science by examining important pattern-process relations, advocating a spatial modeling approach that is capable of synthesizing fundamental relationships at the farm level, and links people and environment in complex ways.
1 Brief an Hans Georg Naegeli
Brief an Nägeli ...
Creators: name: Gesellschaft ab dem Musiksaal beim Kornhaus
Publisher: name: [s.n.]
Year: 1810

description: von Gesellschaft des Musiksaals
description: Abschrift von Hermann Nägeli
description: Gesellschaft ab dem Musiksaal beim Kornhaus: Vorgängerin der Allgemeinen Musik-Gesellschaft Zürich
title: Extratropical Cyclones and their influence on Greenland Ice Sheet surface mass balance and dynamics
Creators: name: Maffezzoni, L
Publisher: name: Liverpool John Moores University
Year: 2022

description: The Greenland Ice Sheet (GrIS) stores enough freshwater to raise global sea level by more than 7 m, so its response to climate variability is of considerable societal significance. Extratropical cyclones impact its surface mass budget (SMB) via both solid and liquid precipitation but their impacts on surface energy balance (SEB) are less known. Moreover, the ability of cyclonic rainfall to reach and perturb the ice-bed interface influencing ice dynamics, remains an open question. The thesis helps fill these knowledge gaps by 1) exploring the net effect of extratropical cyclones on the GrIS surface mass balance; and 2) investigating how they can influence ice dynamics through their input of meltwater and rainfall to the subglacial hydrological system. The first aim was addressed by calculating mean meteorological and surface mass/energy balance terms during periods when the GrIS was under the influence of extratropical cyclones. This was achieved using a 58-year integration of the Model Atmospherique Regional (MAR) along with a cyclone dataset covering the Northern Hemisphere for the same period. The results indicated that extratropical cyclones have a net positive effect on GrIS mass balance in summer, lowering air temperatures and increasing albedo (due to snowfall) that suppress the meltwater production in the ablation region. During winter, the analysis reveals abundant snowfall leading again to a positive impact on GrIS mass balance. The MAR outputs and the cyclone dataset were also used to identify cyclonic rainfall events over the western flank of the GrIS during late summer/early autumn; the period where their occurrence could have the biggest impact on ice dynamics. A GIS procedure was applied to data from the GoLIVE and MEaSUREs Selected Glacier satellite ice velocity datasets to extract ice motion of the glaciers during the melt season and around the cyclonic period. The major finding here was an acceleration along both marine and land terminating glaciers in response to extratropical cyclone passage, forced by subglacial hydrological changes resulting from inputs of rainfall and meltwater. The thesis therefore concludes that extratropical cyclones have a positive impact on the net surface mass balance in the current climate, but that their passage during autumn may already enhance dynamic thinning.
Labouring the news: an exploration of working conditions in journalism
Creators: name: Hayes, Kathryn
Publisher: name: University of Limerick
Year: 2023
Subjects: classificationCode: 47
subject: Language, communication and culture

description: This thesis is a study of working conditions and increasing precarity in journalism. Exploring the working conditions of journalists matters, not only for journalists, but because of the societal value of the work they produce. This research builds on the emerging body of work in journalism scholarship that places labour at its core, treating journalism as work and journalists as workers. The research approach is informed by concepts drawn from labour process theory; an important Marxist approach in the study of relations of production in industrial capitalism. This study of the lived experiences of journalists’ working conditions explores increasing precarity in journalism along with the broader managerial control strategies shaping the labour process. Moreover, it seeks to establish if precariousness constrains the ability of journalism to fulfil its most important function: to question and challenge power. The findings are based on interviews with 40 journalists, working in print, online and broadcast media and an empirical case study of a local newspaper in the Republic of Ireland, a small media market and one of the most concentrated of any democracy. The research pays particular attention to journalists’ job prospects including their contractual status and job security, their work intensity including the pace and emotional demands of work, their working time, and their skills use. Overall, this study contributes new insights into the working conditions of journalists, exploring precarious terms of employment for the expanding freelance workforce alongside deteriorating working conditions for staff journalists who also endure the effects of organisational cost cutting and productivity pressures in news media.
Additional file 1 of Barriers and facilitators to integrating depression care in tuberculosis services in South Asia: a multi-country qualitative study
Creators: name: Todowede, Olamide
name: Afaq, Saima
name: Adhikary, Anoshmita
name: Kanan, Sushama
name: Shree, Vidhya
name: Jennings, Hannah Maria
name: Faisal, Mehreen Riaz
name: Nisar, Zara
name: Khan, Ikram
name: Desai, Geetha
name: Huque, Rumana
name: Siddiqi, Najma
Publisher: name: figshare
Year: 2023
Subjects: subject: Medicine
subject: Molecular Biology
subject: Biotechnology
subject: Sociology
subject: FOS: Sociology
subject: Biological Sciences not elsewhere classified
subject: Cancer
subject: Mental Health
subject: Infectious Diseases
subject: FOS: Health sciences
subject: Virology
subject: Computational Biology

description: Supplementary Material 1
Design of an agent-based model to examine population–environment interactions in Nang Rong District, Thailand
Creators: name: Verdery, Ashton M.
name: McDaniel, Philip M.
name: Yao, Xiaozheng
name: Walsh, Stephen J.
name: Malanson, George P.
name: Ding, Deng
name: Frizzelle, Brian G.
name: Rindfuss, Ronald R.
name: Mucha, Peter J.
name: Heumann, Benjamin W.
name: Entwisle, Barbara
name: Williams, Nathalie E.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2013

description: The design of an Agent-Based Model (ABM) is described that integrates Social and Land Use Modules to examine population-environment interactions in a former agricultural frontier in Northeastern Thailand. The ABM is used to assess household income and wealth derived from agricultural production of lowland, rain-fed paddy rice and upland field crops in Nang Rong District as well as remittances returned to the household from family migrants who are engaged in off-farm employment in urban destinations. The ABM is supported by a longitudinal social survey of nearly 10,000 households, a deep satellite image time-series of land use change trajectories, multi-thematic social and ecological data organized within a GIS, and a suite of software modules that integrate data derived from an agricultural cropping system model (DSSAT – Decision Support for Agrotechnology Transfer) and a land suitability model (MAXENT – Maximum Entropy), in addition to multi-dimensional demographic survey data of individuals and households.
Composite leptoquarks and anomalies in $B$-meson decays
Creators: name: Gripaios, Ben
name: Nardecchia, Marco
name: Renner, S. A.
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We attempt to explain recent anomalies in semileptonic $B$ decays at LHCb via a composite Higgs model, in which both the Higgs and an $SU(2)_L$-triplet leptoquark arise as pseudo-Goldstone bosons of the strong dynamics. Fermion masses are assumed to be generated via the mechanism of partial compositeness, which largely determines the leptoquark couplings and implies non-universal lepton interactions. The latter are needed to accommodate tensions in the $b \to s μμ$ dataset and to be consistent with a discrepancy measured at LHCb in the ratio of $B^+ \to K^+ μ^+ μ^-$ to $B^+ \to K^+ e^+ e^-$ branching ratios. The data imply that the leptoquark should have a mass of around a TeV. We find that the model is not in conflict with current flavour or direct production bounds, but we identify a few observables for which the new physics contributions are close to current limits and where the leptoquark is likely to show up in future measurements. The leptoquark will be pair-produced at the LHC and decay predominantly to third-generation quarks and leptons, and LHC13 searches will provide further strong bounds.
description: 27 pages. v2: Added more details in section 3.2 on quantum numbers of composite operators, and custodial protection of Z->bb. Corrected some factor of 2 errors in sections 4.1 and 4.2 (conclusions unchanged). Added more details in section 4.3 on branching ratios of the leptoquarks. Added references
DETERMINATION OF PHYSICAL AND COMBUSTION PROPERTIES OF BIO-BRIQUETTE PRODUCED FROM GROUNDNUT SHELL AND RICE HUSK AS AN ALTERNATIVE SOURCE OF DOMESTIC COOKING
Creators: name: Galadimaa, Zakka A.
name: Shaibua, Momoh
name: Mohammeda, Zakari S.
name: Onojaa, Emmanuel
name: Samailaa, Abdullahi A.
Publisher: name: Zenodo
Year: 2024

description: Biomass briquettes can be considered as one of the cleaned energy source compared to wood fuel understanding that clean energy in homes can be a tool to enhance human health. In this present research, bio briquette was produced from ground nut shell and rice husk. Physical and combustion properties were evaluated using standard analytical methods. The physicochemical properties of the bio briquette are 5.54±0.043, 7.65±0.048, 9.52±0.003, 11.65±0.004, 0.85±0.21, 1.81±0.29, 40.47±0.021, 45.74±0.031, 3892.73±0.151, 4984.73±0.169, for the percentage of moisture, volatile matter, ash content fixed carbon and calorific value (kj/kg) for rice husk and groundnut shell respectively. The combustion test observed in the both briquette produced from96is as follow: no spark from rice husk briquette while spark was observed in groundnut shell briquette. No smoke emitted in both briquette, the average ignition time is was 3 minutes and 4 minutes for the both briquette respectively. Both briquettes appeared black in color; their respective density recorded was 0.81g/ml and 1.2 g/ml respectively. The water boiling time is 13 minutes 24 second and 14 minutes 34 second for rice and ground nut shell briquette. It was observed that the fuel burring time for rice husk and ground nut shell briquette was 1.95g/min and 2.05g/min. There are significance difference in the properties and combustion rate of groundnut shell and rice husk briquetted produced. therefore, the agricultural waste such rice husk and groundnut shell has proved to be an alternative cleaned energy for domestic uses.
Changing crops in response to climate: Virtual Nang Rong, Thailand in an agent based simulation
Creators: name: Frizzelle, Brian G.
name: Yao, Xiaozheng
name: Rindfuss, Ronald R.
name: Sawangdee, Yothin
name: Verdery, Ashton M.
name: Williams, Nathalie E.
name: Heumann, Benjamin W.
name: McDaniel, Philip M.
name: Entwisle, Barbara
name: Malanson, George P.
name: Walsh, Stephen J.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2014

description: The effects of extended climatic variability on agricultural land use were explored for the type of system found in villages of northeastern Thailand. An agent based model developed for the Nang Rong district was used to simulate land allotted to jasmine rice, heavy rice, cassava, and sugar cane. The land use choices in the model depended on likely economic outcomes, but included elements of bounded rationality in dependence on household demography. The socioeconomic dynamics are endogenous in the system, and climate changes were added as exogenous drivers. Villages changed their agricultural effort in many different ways. Most villages reduced the amount of land under cultivation, primarily with reduction in jasmine rice, but others did not. The variation in responses to climate change indicates potential sensitivity to initial conditions and path dependence for this type of system. The differences between our virtual villages and the real villages of the region indicate effects of bounded rationality and limits on model applications.
Criação de um guia de apoio ao ensino de línguas com base no processamento e visualização de dados científicos abertos
Creators: name: Pereira, Mariana
name: Araújo, Sílvia
Publisher: name: Zenodo
Year: 2022

description: Apresentação realizada na sessão O meu Póster em 40 segundos da 13ª Conferência Lusófona de Ciência Aberta, formato híbrido, de 10 a 12 de outubro de 2022.
Three Molecular Subtypes of Gastric Adenocarcinoma Have Distinct Histochemical Features Reflecting Epstein-Barr Virus Infection Status and Neuroendocrine Differentiation
Creators: name: Tang, Weihua
name: Meyers, Michael O.
name: Morgan, Douglas R.
name: Dominguez, Ricardo L.
name: Kuan, Pei Fen
name: Martinez, Enrique
name: Gulley, Margaret L.
name: Speck, Olga
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2015

description: Current histopathologic classification schemes for gastric adenocarcinoma have limited clinical utility and are difficult to apply due to tumor heterogeneity. Elucidation of molecular subtypes of gastric cancer may contribute to our understanding of gastric cancer biology and to the development of new molecular markers that may lead to improved diagnosis, therapy, or prognosis. We previously demonstrated that Epstein-Barr virus infected gastric cancers have a distinct human gene expression profile compared to uninfected cancers. We now examine the histopathologic features characterizing infected (n=14) and uninfected (n=89) cancers, the latter of which are now further divided into two major molecular subtypes based on expression patterns of 93 RNAs. One uninfected gastric cancer subtype was distinguished by upregulation of three genes with neuroendocrine function (CHGA, GAST, and REG4 encoding chromogranin, gastrin and the secreted peptide REG4 involved in epithelial cell regeneration), implicating hormonal factors in the pathogenesis of a major class of gastric adenocarcinomas. Evidence of neuroendocrine differentiation (molecular, immunohistochemical, or morphologic) was mutually exclusive of EBV infection. EBV infected tumors tended to have solid-type morphology with lymphoid stroma. This study reveals novel molecular subtypes of gastric cancer and their associated morphologies that demonstrate divergent neuroendocrine features.
MicroplastiX WP2 SOPs
Creators: name: Lenz, Robin
name: Fischer, Franziska
name: Fischer, Dieter
Publisher: name: Zenodo
Year: 2023
Subjects: microplastics
sop
spectroscopy

description: Standard operating procedures for the JPI Oceans project MicroplastiX Sample treatment (file: MicroPlastiX_WP2_SOP_sampleTreatment.docx) practical MP work recommendation organic matrix removal density separation Spectroscopy (file: MicroPlastiX_WP2_SOP_analytical.docx) specifically recommending how to measure spectra on polymer sheets in the joint weathering and biofilm experiments
description: Funded by the European JPI Oceans Initiative. Project MicroPlastiX.
description: {"references": ["K. Enders, R. Lenz, J.A. Ivar do Sul, A.S. Tagg, M. Labrenz. \"When every particle matters: a QuEChERS approach to extract microplastics from environmental samples\". MethodsX. 2020. 100784. DOI: 10.1016/J.MEX.2020.100784", "A. Lopez-Rosales, J.M. Andrade, G. Grueiro-Noche, P. Fernandez-Gonzalez, Veronica Lopez-Mah\u00eda, S. Muniategui-Lorenzo. \"Development of a fast and efficient method to analyze microplastics in planktonic samples\". Mar.Poll.Bull. 2021. 168(April). DOI: 10.1016/j.marpolbul.2021.112379"]}