cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Dark Matter Halo Growth II: Diffuse Accretion and its Environmental Dependence
Creators: name: Fakhouri, Onsi
name: Ma, Chung-Pei
Publisher: name: arXiv
Year: 2009
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Dark matter haloes in Lambda CDM simulations grow by mergers with other haloes as well as accretion of "diffuse" non-halo material. We quantify the mass growth rates via these two processes, dM_mer/dt and dM_dif/dt, and their dependence on halo environment using the ~500,000 haloes in the Millennium simulation. Adopting a local mass density parameter as a measure of halo environment, we find the two rates show strong but opposite environmental dependence, with mergers playing an increasingly important role for halo growths in overdense regions and diffuse accretion dominating growth in voids. This behaviour is independent of the mass cuts used to define haloes vs non-haloes. For galaxy-scale haloes, these two opposite correlations largely cancel out, but a weak environmental dependence remains that results in a slightly lower mean total growth rate, and hence an earlier mean formation redshift, for haloes in denser regions. The mean formation redshift of the ~5000 cluster-mass haloes, on the other hand, appears to have no correlation with halo environment. The origin of the positive correlation of dM_mer/dt with local density can be traced to the surrounding mass reservoir outside the haloes, where more progenitor haloes are available in denser regions. The negative correlation of dM_dif/dt with density, however, is not explained by the available diffuse mass in the reservoir, which is in fact larger in denser regions. The non-halo component may therefore be partially comprised of truly diffuse dark matter particles that are dynamically hotter and are accreted at a suppressed rate in denser regions. We also discuss the implications of these results for how to modify the Extended Press-Schechter model of halo growth, which in its original form does not predict environmental dependence.
description: 15 pages, 9 figures, accepted in MNRAS
ยกย่องชูเกียรติ : นายประสิทธิ์ ทองอุ่น
Creators: name: กองบรรณาธิการ
Publisher: name: The Office of Arts and Culture, Surindra Rajabhat University
Year: 2009
Subjects: -

description: วารสารศิลปะและวัฒนธรรมลุ่มแม่น้ำมูล, 4, ปีการศึกษา 2552, 99-101
นิทานพื้นบ้าน (กูย) กูยเกอดตุม (เจ้าราก)
Creators: name: อารีย์ ทองแก้ว
Publisher: name: The Office of Arts and Culture, Surindra Rajabhat University
Year: 2009
Subjects: -

description: วารสารศิลปะและวัฒนธรรมลุ่มแม่น้ำมูล, 4, ปีการศึกษา 2552, 102-103
รูปแบบการมีส่วนร่วมเพื่อพัฒนายุทธศาสตร์เศรษฐกิจ สังคม และความมั่นคงของ ประเทศอย่างยั่งยืนของหมู่บ้านตามแนวชายแดนไทย – กัมพูชาภาคตะวันออก เฉียงเหนือตอนล่าง เพื่อรองรับแนวนโยบายด้านการบริหารราชการแผ่นดิน ในการ สนับสนุนให้จังหวัดมีแผนและงบประมาณเพื่อพัฒนาจังหวัดตามรัฐธรรมนูญแห่ง ราชอาณาจักรไทย พุทธศักราช 2550
Creators: name: สุดใจ สะอาดยิ่ง
Publisher: name: The Office of Arts and Culture, Surindra Rajabhat University
Year: 2010
Subjects: รูปแบบการมีส่วนร่วมเพื่อพัฒนายุทธศาสตร์ สังคม เศรษฐกิจ และความมั่นคงของประเทศอย่างยั่งยืน
หมู่บ้านตามแนวชายแดนไทย - กัมพูชา ภาคตะวันออกเฉียงเหนือตอนล่าง
นโยบายด้านการบริหารราชการแผ่นดิน
แผนและงบประมาณเพื่อพัฒนาจังหวัด
รัฐธรรมนูญแห่งราชอาณาจักรไทน พุทธศักราช 2550

description: วารสารศิลปะและวัฒนธรรมลุ่มแม่น้ำมูล, 5, ปีการศึกษา 2553, 8-26
Regulating international maritime shipping’s air polluting emissions monitoring, reporting, verifying and enforcing regulatory compliance
Creators: name: Brewer, Thomas L.
Publisher: name: Taylor & Francis
Year: 2021
Subjects: subject: Medicine
subject: Pharmacology
subject: Biotechnology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Immunology
subject: FOS: Clinical medicine
subject: Developmental Biology
subject: Science Policy
subject: Computational Biology

description: Empirical studies have established that ships in international commerce emit air pollutants with damaging effects on human health, climate change and food production. Effective regulation of these emissions depends on technologies, policies and administrative processes that monitor, report, verify and enforce compliance with the regulations (MRV&E systems). The article addresses the following questions: What are the provisions for MRV&E? What are the strengths and weaknesses of the systems? What can be done to make MRV&E systems more effective? The article concludes that current MRV&E policies are defective in some respects, especially concerning enforcement. Nevertheless, there are elements of current MRV&E systems that can provide building blocks for more effective regulatory systems. The conclusions are basedon a data set developed from annual reports of Port State Control (PSC) authorities for the three years 2017–2019. The results of more than 80,000 inspections each year in all regions of the world were reported, and the inspections were done on ships of all flag countries. There was also a one-time, Concentrated Inspection Campaign (CIC) in 2018 that focused on compliance with emissions and fuel efficiency regulations. The CIC involved 12,703 inspections in ports of 63 countries, which used a standardized list of inspection questions.
On bubble clustering and energy spectra in pseudo-turbulence
Creators: name: Martinez, J.
name: Chehata, D.
name: van Gils, D. P. M.
name: Sun, C.
name: Lohse, D.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: 3D-Particle Tracking (3D-PTV) and Phase Sensitive Constant Temperature Anemometry in pseudo-turbulence--i.e., flow solely driven by rising bubbles-- were performed to investigate bubble clustering and to obtain the mean bubble rise velocity, distributions of bubble velocities, and energy spectra at dilute gas concentrations ($α\leq2.2$%). To characterize the clustering the pair correlation function $G(r,θ)$ was calculated. The deformable bubbles with equivalent bubble diameter $d_b=4-5$ mm were found to cluster within a radial distance of a few bubble radii with a preferred vertical orientation. This vertical alignment was present at both small and large scales. For small distances also some horizontal clustering was found. The large number of data-points and the non intrusiveness of PTV allowed to obtain well-converged Probability Density Functions (PDFs) of the bubble velocity. The PDFs had a non-Gaussian form for all velocity components and intermittency effects could be observed. The energy spectrum of the liquid velocity fluctuations decayed with a power law of -3.2, different from the $\approx -5/3$ found for homogeneous isotropic turbulence, but close to the prediction -3 by \cite{lance} for pseudo-turbulence.
คติความเชื่อในการนับถือพระคเนศในประเทศไทย
Creators: name: กฤษฎา พิณศรี
Publisher: name: The Office of Arts and Culture, Surindra Rajabhat University
Year: 2010
Subjects: พระคเณศ
เทพเจ้าแห่งอุปสรรค
ลัทธิการนับถือบูชา

description: วารสารศิลปะและวัฒนธรรมลุ่มแม่น้ำมูล, 5, ปีการศึกษา 2553, 28-37
Conservation of Forest Resources Based on Local Knowledge of Indigenous Peoples
Creators: name: Syarif, Erman
name: Maddatuang M
name: Alief Saputro
Publisher: name: Thai Society of Higher Education Institutes on Environment
Year: 2023
Subjects: Conservation of forest
Local knowledge
Ammatoa
Environmental sustainability
Customary forests

description: EnvironmentAsia, 16, 2, 12-23
A novel HPLC-DAD method with dilute-and-shoot sample preparation technique for the determination of buprofezin, dinobuton and chlorothalonil in food, environmental and biological samples
Creators: name: Gebrehiwot, Weldejeworgis Hndeya
name: Erkmen, Cem
name: Uslu, Bengi
Publisher: name: Taylor & Francis
Year: 2020
Subjects: subject: Biophysics
subject: Biochemistry
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Biotechnology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Ecology
subject: Immunology
subject: FOS: Clinical medicine
subject: 69999 Biological Sciences not elsewhere classified
subject: Science Policy

description: The development of agriculture is closely related to the use and application of pesticides in order to improve products. Excessive use of pesticides is indeed very dangerous to essential pests and it has a potential negative effect over human health, pollution of soil and waters. For these reasons, in this study, a dilute-and-shoot sample preparation procedure for simultaneous determination of three pesticides (buprofezin, dinobuton and chlorothalonil) was developed and validated for the first time combined with high-performance liquid chromatography–diode-array detector method in urine, serum, tomato, soil, commercial dosage form and water samples. Also, the degradation and behaviour of these pesticides were investigated under different conditions in the environment. HPLC analysis was performed with Kinetex C18 (150 mm × 4.6 mm; 5 μm) column with 1 mL min−1 flow rate of mobile phase which consisted of acetonitrile/buffer in the ratio of 75:25 (v/v) at 25.0°C. Calibration graphs showed a good linearity with a coefficient of determination (R2) of at least 0.999 for all analytes. Intraday and interday precisions (expressed as RSD%) were lower than 1.66% for all analytes. The developed method was demonstrated to be sensitive, simple, robust and rapid for the simultaneously determination of analytes in different samples providing recoveries in the range between 92.3% and 109.74%.
Performance Evaluation and Comparison of SWAT Model-PredictedPotential Trends in Sub-Ping Watershed, Thailand
Creators: name: Banchongsak Faksomboon
name: Siraprapha Polthana
Publisher: name: Thai Society of Higher Education Institutes on Environment
Year: 2023
Subjects: SWAT Model
Potential Evapotranspiration
Actual Evapotranspiration
Watershed

description: EnvironmentAsia, 16, 2, 35-47
Identifying the key elements involved in cytosolic protein quality control
Creators: name: Dalal, Aastha
Publisher: name: University of British Columbia
Year: 2025

description: Efficient cellular function depends on the proteome’s ability to balance protein folding, refolding and degradation. Misfolded proteins, arising from genetic mutations, stress, age and metabolic shifts, constantly challenge eukaryotic cells. To address this, cells have inherent quality control systems to maintain the protein homeostasis balance. Key proteins in the quality control network operate in a compartmentalized manner, with them having specific roles in different cellular compartments. While the mechanism of quality control in the endoplasmic reticulum is widely understood, cytosolic quality control mechanisms remain less clear. To identify the key cytosolic quality control proteins, we used a cytosolic mutant substrate – GNMT H177N as a model substrate for this study. This substrate has a missense mutation that compromises the GNMT enzyme’s stability, impacting its function in glycine metabolism, resulting in a genetic condition marked by elevated blood methionine levels. When expressed in cells, GNMT H177N is less stable and is likely degraded as compared to its wildtype counterpart. Inhibiting the 26S proteasome and E1-activating enzyme led to an accumulation of GNMT H177N, highlighting the ubiquitin-proteosome system’s (UPS) role in substrate turnover. Moreover, our findings indicate HSP70’s role in this turnover, while HSP90 seems to prevent degradation, likely through refolding of the misfolded substrate. We first explored the function of a cytosolic E3 ligase – HERC1 and conclude that it does not play a pivotal role in this turnover, suggesting another E3 ligase might be involved. Therefore, we used proximity-based labelling screens with BioID and TurboID to identify potential elements of the protein homeostasis network that may regulate the turnover of the model substrate, as compared to the wildtype protein. Our screens identified a diverse, interconnected network of stress-related protein quality control proteins, including proteins related to the UPS and chaperone proteins, that often act at the forefront of defense against a misfolded protein. We shortlisted several proteins from the BioID screen for follow up experiments. Notably, knockdown of DNAJA1 and DNAJA2 led to a significant increase in the levels of GNMT H177N. While these HSP70 co-chaperones impact cytosolic mutant protein turnover, identifying the specific E3(s) involved requires further investigation.
Globular Clusters as Testbeds for Type Ia Supernovae
Creators: name: Pfahl, Eric
name: Scannapieco, Evan
name: Bildsten, Lars
Publisher: name: arXiv
Year: 2009
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Fundamental mysteries remain regarding the physics of Type Ia supernovae (SNIa) and their stellar progenitors. We argue here that important clues to these questions may emerge by the identification of those SNIa that occur in extragalactic globular clusters--stellar systems with well defined ages and metallicities. We estimate an all-sky rate of approximately 0.1 eta (D/100 Mpc)^3 per year for SNIa in globular clusters within a distance D, where eta is the rate enhancement per unit mass as a result of dynamical production channels that are inaccessible in the galactic field. If eta is approximately 2-10, as suggested by observations and theory, the combined efforts of accurate supernova astrometry and deep follow-up imaging should identify the > 1% of nearby (D < 100 Mpc) SNIa that occur in globular clusters.
description: 9 pages, ApJL, in press
Optimal robust exact first-order differentiators with Lipschitz continuous output
Creators: name: Aldana-Lopez, Rodrigo
name: Seeber, Richard
name: Haimovich, Hernan
name: Gomez-Gutierrez, David
Publisher: name: arXiv
Year: 2024
Subjects: subject: Systems and Control (eess.SY)
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: The signal differentiation problem involves the development of algorithms that allow to recover a signal's derivatives from noisy measurements. This paper develops a first-order differentiator with the following combination of properties: robustness to measurement noise, exactness in the absence of noise, optimal worst-case differentiation error, and Lipschitz continuous output where the output's Lipschitz constant is a tunable parameter. This combination of advantageous properties is not shared by any existing differentiator. Both continuous-time and sample-based versions of the differentiator are developed and theoretical guarantees are established for both. The continuous-time version of the differentiator consists in a regularized and sliding-mode-filtered linear adaptive differentiator. The sample-based, implementable version is then obtained through appropriate discretization. An illustrative example is provided to highlight the features of the developed differentiator.
title: Information Retrieval and Search Techniques
title: A Librarian Approach
titleType: AlternativeTitle
title: Τεχνικές Αναζήτησης και Ανάκτηση Πληροφοριών
title: Μια Βιβλιοθηκονομική Προσέγγιση
titleType: AlternativeTitle
Creators: name: Triantafyllou, Ioannis
Publisher: name: Kallipos, Open Academic Editions
Year: 2023
Subjects: Ανάκτηση Πληροφοριών
Συστήματα Ανάκτησης Πληροφοριών
Λογικό και Διανυσματικό Μοντέλο Αναπαράστασης Πληροφοριών
Τεχνικές Αναζήτησης Πληροφοριών
Βιβλιογραφικές Βάσεις Δεδομένων και Αναζήτηση
Μηχανές Αναζήτησης και μετά-Αναζήτησης
Δεδομένα Συμπεριφοράς Χρηστών στις Μηχανές Αναζήτησης
Διασυνδεδεμένα Δεδομένα
Σημασιολογικός Ιστός
Οντολογίες και Γραφήματα Γνώσεις
Πηγές Πληροφόρησης
Information Retrieval (IR)
Information Retrieval Systems
Logical and Vector Space Model in IR
Information Search Techniques
Bibliographic Databases
Search & meta-Search Engines
Behavioral Analytics in Search Engines
Linked Data
Semantic Web
Ontologies and Knowledge Graphs
Information Sources

description: Βασικός στόχος του συγγράμματος αποτελεί η ανάπτυξη ικανοτήτων και δεξιοτήτων των αναγνωστών στη χρήση των συστημάτων ανάκτησης ...
description: Βασικός στόχος του συγγράμματος αποτελεί η ανάπτυξη ικανοτήτων και δεξιοτήτων των αναγνωστών στη χρήση των συστημάτων ανάκτησης ...
A simple fluorescence probe for lemon yellow in drink
Creators: name: Li, Qin
name: Yang, Qiong
name: Zhou, Shang
name: Yang, Jidong
Publisher: name: Taylor & Francis
Year: 2020
Subjects: subject: Biochemistry
subject: Space Science
subject: Biotechnology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences

description: Based on the fluorescence quenching effect of citric yellow on GSH-CdTe QDs (GSH: glutathione), the concentration of citric yellow (LY) in soft drink was detected by quantum dot fluorescence quenching method, and the reaction mechanism was analysed. The results showed that: LY could be measured in the range of 1.1–46.2 μg∙mL−1 with a detection limit of 6.7 ng∙mL−1. Combined with the influence of temperature change on fluorescence quenching constant and UV-vis absorption spectrum, it can be seen that this process is a static quenching process. The influence of common interfering species on the LY detection was studied, the results showed that the probe is highly selective and sensitive for the detection of LY. Finally, the optical probe was successfully used for the determination of LY in three kinds of soft drink.
The Event Horizon of Sagittarius A*
Creators: name: Broderick, Avery E.
name: Loeb, Abraham
name: Narayan, Ramesh
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Black hole event horizons, causally separating the external universe from compact regions of spacetime, are one of the most exotic predictions of General Relativity (GR). Until recently, their compact size has prevented efforts to study them directly. Here we show that recent millimeter and infrared observations of Sagittarius A* (Sgr A*), the supermassive black hole at the center of the Milky Way, all but requires the existence of a horizon. Specifically, we show that these observations limit the luminosity of any putative visible compact emitting region to below 0.4% of Sgr A*'s accretion luminosity. Equivalently, this requires the efficiency of converting the gravitational binding energy liberated during accretion into radiation and kinetic outflows to be greater than 99.6%, considerably larger than those implicated in Sgr A*, and therefore inconsistent with the existence of such a visible region. Finally, since we are able to frame this argument entirely in terms of observable quantities, our results apply to all geometric theories of gravity that admit stationary solutions, including the commonly discussed f(R) class of theories.
description: 11 pages, 6 figures, submitted to ApJ
A simple fluorescence probe for lemon yellow in drink
Creators: name: Li, Qin
name: Yang, Qiong
name: Zhou, Shang
name: Jidong Yang
Publisher: name: Taylor & Francis
Year: 2020
Subjects: subject: Biochemistry
subject: Space Science
subject: Biotechnology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences

description: Based on the fluorescence quenching effect of citric yellow on GSH-CdTe QDs (GSH: glutathione), the concentration of citric yellow (LY) in soft drink was detected by quantum dot fluorescence quenching method, and the reaction mechanism was analysed. The results showed that: LY could be measured in the range of 1.1–46.2 μg∙mL−1 with a detection limit of 6.7 ng∙mL−1. Combined with the influence of temperature change on fluorescence quenching constant and UV-vis absorption spectrum, it can be seen that this process is a static quenching process. The influence of common interfering species on the LY detection was studied, the results showed that the probe is highly selective and sensitive for the detection of LY. Finally, the optical probe was successfully used for the determination of LY in three kinds of soft drink.
X- and Gamma-Ray Flashes from Type Ia Supernovae?
Creators: name: Hoflich, Peter
name: Schaefer, Bradley E.
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We investigate two potential mechanisms that will produce X-ray and gamma-ray flashes from Type Ia supernovae (SN-Ia). The mechanisms are the breakout of the thermonuclear burning front as it reaches the surface of the white dwarf and the interaction of the rapidly expanding envelope with an accretion disk. Based on the delayed-detonation scenario and detailed radiation-hydro calculation which include nuclear networks, we find that both mechanisms produce ~1 second flashes of high energy radiation with peak luminosities of 10^48 to 10^50 erg/sec with fast rises and exponential declines. The X- and gamma-ray visibility of a SN-Ia will depend strongly on self absorption within the progenitor system, specifically on the properties of the accretion disk and its orientation towards the observer. Such X-ray and gamma-ray flashes could be detected as triggered events by Gamma-Ray Burst (GRB) detectors on satellites, with events in current GRB catalogs. We have searched through the GRB catalogs (for the BATSE, HETE, and Swift experiments) for GRBs that occur at the extrapolated time of explosion and in the correct direction for known Type Ia supernovae with radial velocity of less than 3,000 km/s. For BATSE about 12.9+-3.6 nearby SNe Ia should have been detected, but only 0.8+-0.7 non-coincidental matches have been found. With the HETE and Swift satellites, we expect to see 5.6+-1.3 SN-Ia flashes from known nearby SNe Ia but, yet, no SN-Ia flashes were detected. These place observational limits that the bolometric peak luminosity of SN-Ia Flashes must be less ~10^46 erg/s. We attribute the difference between theory and observational limits to the absorption of the X- and gamma-rays by the accretion disk of large scale height or common envelope that would be smothering the white dwarf.
description: Astrophysical Journal, in press
Hydrolyzed Ce(IV) salts limit sucrose-dependent biofilm formation by Streptococcus mutans
Creators: name: Bhatt, Lopa
name: Chen, Lin
name: Guo, Jinglong
name: Klie, Robert
name: Shi, Junhe
name: Pesavento, Russell
Publisher: name: University of Illinois at Chicago
Year: 2023
Subjects: subject: Inorganic Chemistry
subject: FOS: Chemical sciences

description: Several studies have focused on the antimicrobial effects of cerium oxide nanoparticles (CeO2-NP) but few have focused on their effects on bacteria under initial biofilm formation conditions. Streptococcus mutans is a prolific biofilm former contributing to dental caries in the presence of fermentable carbohydrates and is a recognized target for therapeutic intervention. CeO2-NP derived solely from Ce(IV) salt hydrolysis were found to reduce adherent bacteria by approximately 40% while commercial dispersions of "bare" CeO2-NP (e.g., 3 nm, 10-20 nm, 30 nm diameter) and Ce(NO3)3·6H2O were either inactive or observed to slightly increase biofilm formation under similar in vitro conditions. Planktonic growth and dispersal assays support a non-bactericidal mode of biofilm inhibition active in the initial phases of S. mutans biofilm production. Human cell proliferation assays suggest only minor effects of hydrolyzed Ce(IV) salts on cellular metabolism at concentrations up to 1 mM Ce, with less observed toxicity compared to equimolar concentrations of AgNO3. The results presented herein have implications in clinical dentistry.
From chiral EFT to perturbative QCD: a Bayesian model mixing approach to symmetric nuclear matter
Creators: name: Semposki, A. C.
name: Drischler, C.
name: Furnstahl, R. J.
name: Melendez, J. A.
name: Phillips, D. R.
Publisher: name: arXiv
Year: 2024
Subjects: subject: Nuclear Theory (nucl-th)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Constraining the equation of state (EOS) of strongly interacting, dense matter is the focus of intense experimental, observational, and theoretical effort. Chiral effective field theory ($χ$EFT) can describe the EOS between the typical densities of nuclei and those in the outer cores of neutron stars while perturbative QCD (pQCD) can be applied to properties of deconfined quark matter, both with quantified theoretical uncertainties. However, describing the full range of densities in between with a single EOS that has well-quantified uncertainties is a challenging problem. Bayesian multi-model inference from $χ$EFT and pQCD can help bridge the gap between the two theories. In this work, we introduce a correlated Bayesian model mixing framework that uses a Gaussian Process (GP) to assimilate different information into a single QCD EOS for symmetric nuclear matter. The present implementation uses a stationary GP to infer this mixed EOS solely from the EOSs of $χ$EFT and pQCD while accounting for the truncation errors of each theory. The GP is trained on the pressure as a function of number density in the low- and high-density regions where $χ$EFT and pQCD are, respectively, valid. We impose priors on the GP kernel hyperparameters to suppress unphysical correlations between these regimes. This, together with the assumption of stationarity, results in smooth $χ$EFT-to-pQCD curves for both the pressure and the speed of sound. We show that using uncorrelated mixing requires uncontrolled extrapolation of at least one of $χ$EFT or pQCD into regions where the perturbative series breaks down and leads to an acausal EOS. We also discuss extensions of this framework to non-stationary and less differentiable GP kernels, its future application to neutron-star matter, and the incorporation of additional constraints from nuclear theory, experiment, and multi-messenger astronomy.
description: 22 pages, 9 figures, now updated with the version published in PRC
Demonstrating the high sensitivity of MoS2 monolayers in direct x-ray detectors
Creators: name: Taffelli, Alberto
name: Heyl, Max
name: Favaro, Matteo
name: Dirè, Sandra
name: Pancheri, Lucio
name: List-Kratochvil, Emil J.W.
name: Quaranta, Alberto
name: Ligorio, Giovanni
Publisher: name: Humboldt-Universität zu Berlin
Year: 2023
Subjects: subject: 620 Ingenieurwissenschaften und zugeordnete Tätigkeiten

description: Two-dimensional transition metal dichalcogenides (TMDCs) are demonstrated to be appealing semiconductors for optoelectronic applications, thanks to their remarkable properties in the ultraviolet-visible spectral range. Interestingly, TMDCs have not yet been characterized when exposed to x rays, although they would be ideal candidates for optoelectronic applications in this spectral range. They benefit from the high cross section of the constituent heavy atoms, while keeping the absorption very low, due to the ultrathin structure of the film. This encourages the development of photodetectors based on TMDCs for several applications dealing with x rays, such as radioprotection, medical treatments, and diagnosis. Given the atomic thickness of TMDCs, they can be expected to perform well at low dose measurements with minimal perturbation of the radiation beam, which is required for in vivo applications. In this paper, the use of TMDCs as active materials for direct x-ray detection is demonstrated, using a photodetector based on a MoS2 monolayer (1L-MoS2). The detector shows a response to x rays in the range of 101–102 keV, at dose rates as low as fractions of mGy/s. The sensitivity of 1L-MoS2 reaches values in the range of 108–109 µC Gy−1 cm−3, overcoming the values reported for most of the organic and inorganic materials. To improve the x-ray photoresponse even further, the 1L-MoS2 was coupled with a polymeric film integrating a scintillator based on terbium-doped gadolinium oxysulfide (Gd2O2S:Tb). The resulting signal was three times larger, enabled by the indirect x ray to visible photoconversion mechanism. This paper might pave the way toward the production of ultrathin real-time dosimeters for in vivo applications.
Hydroclimatic controls and the influence of climate change on the timing of the kokanee spawning period in Peachland, BC
Creators: name: Moore, Emily
Publisher: name: University of British Columbia
Year: 2024

description: Negative impacts of climate change and watershed disturbance are becoming increasingly important for freshwater ecosystems in the Pacific Northwest. Increased air temperatures and changes to precipitation regimes alter stream flow and temperature, especially in snow- dominated watersheds. Changes in these habitat variables can impact the success of critical salmonid life stages, such as spawning, leading to population decline. Kokanee fisheries in the Okanagan Valley have immense economic and cultural value, however their continued success is threatened by a changing climate. The questions I aimed to address with my research were: (1) which hydroclimatic variables were the most influential in determining the timing of kokanee spawning in Peachland and Trepanier Creeks over the last 30 years? And (2) how will a changing climate alter spawn timing in the future? Linear models were created to predict both spawning start time and duration in both creeks. Results showed that kokanee spawning in both creeks had advanced an average of 6 days in both creeks over the past 30 years. The timing of spawning was most strongly predicted by variables related to air temperature such as accumulated thermal units of air temperature, climate moisture deficit in the summer, and average autumn temperature, where higher air temperatures were correlated with earlier spawning. Flow appeared to be more important for determining spawn timing in unregulated Trepanier Creek. This difference likely arose due to the presence of a dam in Peachland Creek watershed which provided regulated flows throughout the spawning period. Spawning duration was best predicted by temperature variables and spawning start time, with an earlier spawning start contributing to a longer spawning duration. Climate change models predict alterations to relevant hydroclimatic variables that will lead to advanced spawning in both creeks. Spawning duration was also predicted to increase under climate change, however the consideration and inclusion of biological controls on spawning duration in the model would improve prediction capability.
title: On the deformation of a composite rod in the framework of gradient thermoelasticity
Creators: name: Vatulyan, А.О.
name: Nesterov, S.А.
Publisher: name: Peter the Great St. Petersburg Polytechnic University
Year: 2020

description: The gradient thermoelasticity problem for a composite rod based on the applied
one-parameter model is investigated. To find the Cauchy stresses, the Vishik-Lyusternik
asymptotic approach is used, taking into account the presence of boundary-layer solutions in
the vicinity of the rods' boundaries and interface. A new dimensionless parameter equal to the
ratio of the second rod length and the gradient parameter are introduced. Simplified formulas
are constructed in order to find the distribution of the Cauchy stresses depending on the new
parameter. After finding the Cauchy stresses distribution, moment stresses, total stresses,
displacements, and deformations are further calculated. The dependence of the Cauchy stress
jump on the ratio of the rods' physical characteristics and the scale parameter is investigated.
The analysis of the results provided is performed.
Human Resource Management and Corporate Goal Attainment in Selected Firms in Cross River State.pdf
Creators: name: Obo, Ekpenyong  Bassey
Publisher: name: figshare
Year: 2023
Subjects: Employment equity and diversity
Business and labour history
Human resources management
Industrial and employee relations
Workplace wellbeing and quality of working life
Human resources and industrial relations not elsewhere classified

description: The study examined human resource management and corporate goal attainment in some selected firms in Cross River State. The specific objectives were; to determine the relationship between staffing practices and the goal attainment of selected firms in Cross River State, to determine the relationship between reward and the goal attainments of selected firms in Cross River State, to determine the relationship between training and the goal attainment of selected firms in Cross River State, and to determine the relationship between employee relations and the goal attainment of selected firms in Cross River State. The population of the study is two hundred and eighty four (284). The primary data was collected through the use of structured questionnaire respondents of the selected firms in Cross River State. The study employed Pearson Product Moment Correlation analysis technique to measure the relationship between variables tested in the study. Based on the analysis, the following findings are stated; staffing practices have a significant relationship with goal attainment of the firms in Cross River State, Reward has a significant relationship with goal attainment of the firms in Cross River State, training has a significant relationship with goal attainment of the firms in Cross River State and employee relations has a significant relationship with goal attainment of the firms in Cross River State. The study recommended that management of organizations should carefully recruit and select appropriate employees that are qualified so as foster effective corporate goal attainment. Reward system should be implemented in order to maintain the system so as to ensure that it operates efficiently and flexibly. Keywords: Human resource management, staffing practices, reward, training, employee relations, goal attainment
Parent Stars of Extrasolar Planets. X. Lithium Abundances and vsini Revisited
Creators: name: Gonzalez, G.
name: Carlson, M. K.
name: Tobin, R. W.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We determine Li abundances and vsini values from new spectra of 53 stars with Doppler-detected planets not included in our previous papers in this series. We also examine two sets of stars without detected planets, which together serve as our comparison sample. Using the method of comparison of Li abundances and vsini values between two sets of stars we introduced in Gonzalez (2008), we confirm that these two quantities are smaller among stars with planets compared to stars without detected planets near the solar temperature. The transition from low to high Li abundance among SWPs occurs near 5850 K, a revision of about 50 K from our previous determination. The transition from low to high vsini occurs near 6000 K, but this temperature is not as well constrained.
description: accepted for publication in MNRAS; 14 pages, 13 figures, 3 tables
Motivation for Participation in Sports Based on Athletes in Team and Individual Sports
Creators: name: Moradi, Jalil
name: Bahrami, Alireza
name: Dana, Amir
Publisher: name: figshare
Year: 2021
Subjects: subject: 170114 Sport and Exercise Psychology
subject: FOS: Psychology

description: There are many reasons why individuals are motivated to participate in sports. For athletes to participate in and keep up exercise, investigating the participation motivation of athletes is necessary. The aim of this study was to compare sport participation motivation of athletes in team and individual disciplines. The sample consisted of 265 athletes including four teams from football, volleyball, basketball, and handball and two individual disciplines of kung fu and taekwondo which were randomly selected. The 30-item sports participation motivation questionnaire (PMQ) was used. Analysis of data was conducted by the use of independent-samples t-test. The results showed that there is a significant difference between the sports participation motivation of athletes in a team and individual sports as well as between male and female athletes. But, among the components of the sports participation motivation, only the aspect …
A novel method of aerosol particle filtration using liquid bridges
Creators: name: Kurtyigit, Ismail Erdi
Publisher: name: No Publisher Supplied
Year: 2023

description: Air pollution has been a major concern in recent years, and filtering air of particulate matter is a way to reduce its negative effect on human health. A common way to filter particle pollution relies on using fibrous filters. In this work, we propose and investigate a novel filtration idea where the solid fibers of a conventional fibrous filter are replaced by liquid bridges that act as aerosol collectors. We create cylindrical liquid bridges between parallel plates that are separated a constant aperture by spacers. We first determine the critical flow conditions for which individual stationary liquid bridges, made of water or polyethylene glycol (PEG), can sustain air crossflow without large deformations or breaking up. We then investigated the inertial capture of aerosol droplets suspended in a crossflow by liquid bridges created between two silane-treated glass slides using PEG. We track the motion of individual aerosol water droplets (3-9 μm in size) suspended in a flow moving across single or two-bridge systems, using high-speed imagining connected to a microscope. First, we obtain the inertial impaction efficiency of an isolated liquid bridge collector as a function of the Stokes number of the aerosol particles and demonstrate that it is equivalent to that of a solid cylindrical collector. We then consider two-bridge systems; two parallel cylindrical collectors oriented perpendicular to the flow. We investigate the effect that the upstream collector has on the effective impaction efficiency of the downstream test collector, depending on the transverse offset between collectors and Stokes number. We demonstrate that, as predicted by numerical simulations based on potential flow theory, optimum values of the transverse offset lead to effective efficiencies that are larger than the efficiency of an isolated bridge. The relative increase in the inertial capture efficiency is significant for Stokes numbers around and below unity, with relative gains as large as approximately 50%. These results demonstrate the importance of the relative arrangement of individual collectors on the overall inertial capture efficiency of aerosol particles. We finally design a high-performance filtration system consisting of periodic arrays of liquid bridges in a staggered configuration, using relative transverse offset values studied in the two-collector systems. We measure the concentrations of various sizes of water droplets, ranging from 0.5 to 10 μm, before and after the filtration system and determine the filtration effectiveness. The results suggest that decreasing the transverse offsets yields higher collection efficiency for a given Stokes number. We also show that for a given transverse offset, increasing the Stokes number improves the efficiency significantly. This dissertation proves that this unique filtration technology can substantially contribute to aerosol filtration.
CMB Constraints on WIMP Annihilation: Energy Absorption During the Recombination Epoch
Creators: name: Slatyer, Tracy R.
name: Padmanabhan, Nikhil
name: Finkbeiner, Douglas P.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We compute in detail the rate at which energy injected by dark matter annihilation heats and ionizes the photon-baryon plasma at z ~ 1000, and provide accurate fitting functions over the relevant redshift range for a broad array of annihilation channels and DM masses. The resulting perturbations to the ionization history can be constrained by measurements of the CMB temperature and polarization angular power spectra. We show that models which fit recently measured excesses in 10-1000 GeV electron and positron cosmic rays are already close to the 95% confidence limits from WMAP. The recently launched Planck satellite will be capable of ruling out a wide range of DM explanations for these excesses. In models of dark matter with Sommerfeld-enhanced annihilation, where sigma v rises with decreasing WIMP velocity until some saturation point, the WMAP5 constraints imply that the enhancement must be close to saturation in the neighborhood of the Earth.
description: 17 pages, 6 figures, v2 extends discussion of constraints on Sommerfeld-enhanced models
A special class of pure $O$-sequences
Creators: name: Hà, Tài Huy
name: Hibi, Takayuki
name: Zanello, Fabrizio
Publisher: name: arXiv
Year: 2024
Subjects: subject: Combinatorics (math.CO)
subject: Commutative Algebra (math.AC)
subject: FOS: Mathematics
subject: Primary: 05E40, Secondary: 13D40, 13H10

description: The pure $O$-sequences of the form $(1,a,a,\ldots)$ are classified.
description: Minor revisions. To appear in Electr. J. Combinatorics
On Calibrations using the Crab Nebula and Models of the Nebular X-ray Emission
Creators: name: Weisskopf, M. C.
name: Guainazzi, M.
name: Jahoda, K.
name: Shaposhnikov, N.
name: O'Dell, S. L.
name: Zavlin, V. E.
name: Wilson-Hodge, C.
name: Elsner, R. F.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: Motivated by a paper (Kirsch et al. 2005) on possible use of the Crab Nebula as a standard candle for calibrating X-ray response functions, we examine consequences of intrinsic departures from a single (absorbed) power law upon such calibrations. We limit our analyses to three more modern X-ray instruments-the ROSAT/PSPC, the RXTE/PCA, and the XMM-Newton/EPIC-pn (burst mode). The results indicate a need to refine two of the three response functions studied. We are also able to distinguish between two current theoretical models for the system spectrum.
description: 22 pages, 9 figures, accepted for publication in ApJ.
title: Inefficient frontal and parietal brain activation during dual-task walking in a virtual environment in older adults
Creators: name: Stojan, Robert
name: Mack, Melanie
name: Bock, Otmar
name: Voelcker-Rehage, Claudia
Publisher: name: University of Muenster, Institutional Repository MIAMI
Year: 2023
Subjects: subject: 790 Recreational and performing arts

description: Walking while performing an additional cognitive task (dual-task walking; DT walking) is a common yet highly demanding behavior in daily life. Previous neuroimaging studies have shown that performance declines from single-task (ST) to DT conditions are accompanied by increased prefrontal cortex (PFC) activity. This increment is particularly pronounced in older adults and has been explained either by compensation, dedifferentiation, or inefficient task processing in fronto-parietal circuits. However, there is only limited evidence for the hypothesized fronto-parietal activity changes measured under real-life conditions such as walking. In this study, we therefore assessed brain activity in PFC and parietal lobe (PL), to investigate whether higher PFC activation during DT walking in older adults is related to compensation, dedifferentiation, or neural inefficiency. Fifty-six healthy older adults (69.11 ± 4.19 years, 30 female) completed three tasks (treadmill walking at 1 m/s, Stroop task, Serial 3′s task) under ST and DT conditions (Walking + Stroop, Walking + Serial 3′s), and a baseline standing task. Behavioral outcomes were step time variability (Walking), Balance Integration Score BIS (Stroop), and number of correct calculations S3corr (Serial 3′s). Brain activity was measured using functional near-infrared spectroscopy (fNIRS) over ventrolateral and dorsolateral PFC (vlPFC, dlPFC) and inferior and superior PL (iPL, sPL). Neurophysiological outcome measures were oxygenated (HbO2) and deoxygenated hemoglobin (HbR). Linear mixed models with follow-up estimated marginal means contrasts were applied to investigate region-specific upregulations of brain activation from ST to DT conditions. Furthermore, the relationships of DT-specific activations across all brain regions was analyzed as well as the relationship between changes in brain activation and changes in behavioral performance from ST to DT. Data indicated the expected upregulation from ST to DT and that DT-related upregulation was more pronounced in PFC (particularly in vlPFC) than in PL regions. Activation increases from ST to DT were positively correlated between all brain regions, and higher brain activation changes predicted higher declines in behavioral performance from ST to DT. Results were largely consistent for both DTs (Stroop and Serial 3′s). These findings more likely suggest neural inefficiency and dedifferentiation in PFC and PL rather than fronto-parietal compensation during DT walking in older adults. Findings have implications for interpreting and promoting efficacy of long-term interventions to improve DT walking in older persons.
description: Finanziert durch den Open-Access-Publikationsfonds der Universität Münster.
Mimicking Adaptation and Plasticity in WORMS: the MAPWORMS Project
Creators: name: Paternò, Linda
name: Cedrola, Ilaria
name: Mohammad, Hasan Dad Ansari
name: Iacovacci, Veronica
name: Tognarelli, Selene
name: Menciassi, Arianna
Publisher: name: Zenodo
Year: 2023
Subjects: Bioinspired robotics, shape-morphing robots, smart materials, soft robotics, worms

description: The capability of living beings to perform tasks in response to environmental cues has inspired researchers to develop new technological solutions to allow robots controlling their structure, actively. In this regard, marine Annelida, which has adapted to all marine habitats, even the extreme ones, represents an intriguing source of inspiration.
 In traditional robotics, precise position control is typically accomplished by central control of rigid structures. By contrast, nature puts in place a distributed control paradigm and exploits the elastic compliance of body parts (i.e., morphological computation). In this sense, soft robotics and material science have opened up new avenues for the development of bioinspired machines able to execute tasks in unstructured environments, in a safe and compliant manner, as nature does. Recently, a wide set of stimuli-responsive hydrogels have been proposed as promising building material candidates for signal-triggered shape-morphing devices, including medical ones. In particular, DNA-based hydrogels exploiting structural and functional information encoded in nucleic acids represent an attractive solution for reactive synthetic machines.
 In this scenario, the MAPWORMS project proposes a radically new paradigm aimed at reproducing the complexity of living organisms and their capability to react to environmental cues without implementing a central control strategy as in traditional machines, but by relying on synthetic actuation units integrated into a smart shape-morphing and modular architecture with limited environmental impact.