cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Modulation characteristics of uncooled graphene photodetectors
Creators: name: Ryzhii, V.
name: Ryzhii, M.
name: Otsuji, T.
name: Leiman, V.
name: Mitin, V.
name: Shur, M. S.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We analyze the modulation characteristics of the uncooled terahertz (THz) and infrared (IR) detectors using the variation of the density and effective temperature of the two-dimensional electron-hole plasma in uniform graphene layers (GLs) and perforated graphene layers (PGLs) due to the absorption of THz and IR radiation. The performance of the photodetectors (both the GL-photoresistor and the PGL-based barrier photodiodes) are compared. Their characteristics are also compared with the GL reverse-biased photodiodes. The obtained results allow to evaluate the ultimate modulation frequencies of these photodetectors and can be used for their optimization.
description: 10 pages, 3 figures
Knowledge and Information Gaps: Implications for Philippine Food Security
Creators: name: Lapiña, Geny F.
name: Catelo, Salvador P.
name: Lapiña, Geny F.
name: Catelo, Salvador P.
Publisher: name: Unknown
Year: 2017
Subjects: subject: Food Security and Poverty
subject: knowledge and information gaps
subject: research for development (R4D)
subject: food security

description: This paper examines existing literature and data relating to food security and argues that more comprehensive database support and research programs are necessary to provide meaningful directions to address increasingly complex and interrelated issues. Knowledge about food security in the Philippines is dispersed and in some instances, scant. There are research gaps which need to be filled up because of the value of knowledge to policy formulation and comprehensive program implementation. Population growth, rapid urbanization, and demographic change continue to challenge the pursuit of food and nutrition security. Similarly, the land tenure evolution, search of production possibility frontier, changing demand with structural transformation, food and nutrition disconnection, climate change, and weak governance are elements of the food and nutrition security puzzle. These need to be directed toward a more cohesive and resolute approach to development. A repository of knowledge gained and gaps on the subject like a “Philippine Journal on Food Security” is a precondition worth exploring.
Investigation of asymmetrically pitching airfoil at high reduced frequency
Creators: name: Thakor, Mitesh
name: Kumar, Gaurav
name: Das, Debopam
name: De, Ashoke
Publisher: name: arXiv
Year: 2021
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: The expanding application in Micro-Air Vehicles has encouraged many researchers to understand the unsteady flow around a flapping foil at a low Reynolds number. We numerically investigate an incompressible unsteady flow around a two-dimensional pitching airfoil (SD7003) at high reduced frequency in the laminar regime. This study interrogates the effect of different unsteady parameters, namely amplitude (A), reduced frequency (k), Reynolds number (Re), and asymmetry parameter (S) for pitching motion on the force coefficients. The inviscid theoretical model is utilized to calculate the lift coefficient for sinusoidal motion in the viscous regime, and a comparison is made with the numerical results. The theoretical analysis identifies the influence of the non-circulatory lift over circulatory lift at a high reduced frequency. Further, the results indicate that the reduced frequency (k) and asymmetry parameter (S) have a significant impact on the instantaneous and time-averaged force coefficients as well as on the vortex structure in the wake. Finally, the Fast Fourier Transformation (FFT) analysis is carried out over a simulated case with fixed amplitude and Reynolds number for distinct k and S values. The findings confirm that the dominant frequency in the flow (k*) has a direct correlation to the airfoil pitching frequency (k).
A note on cosmological parameters and the topology of the universe
Creators: name: Reboucas, M. J.
name: Alcaniz, J. S.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Given the wealth of increasingly accurate cosmological observations, especially the recent results from the WMAP, and the development of methods and strategies in the search for cosmic topology, it is reasonable to expect that we should be able to detect the spatial topology of the Universe in the near future. Motivated by this, we examine to what extent a possible detection of a nontrivial topology of positively curved universe may be used to place constraints on the matter content of the Universe. We show through concrete examples that the knowledge of the spatial topology allows to place constraints on the density parameters associated to dark matter ($Ω_m$) and dark energy ($Ω_Λ$)
description: 5 pages, 2 figures, revtex4. Prepared for 100 Years of Relativity: International Conference on Classical and Quantum Aspects of Gravity and Cosmology, Sao Paulo, Brazil, 22-24 Aug 2005
[Northern Pomo lecture notes and teaching materials]
Creators: name: Guerrero, Edna
name: Vihman, Eero
Publisher: name: California Language Archive, University of California, Berkeley
Year: 2015
Subjects: subject: pej
subject: Northern Pomo language

description: Notes, teaching aids, correspondence, and reports related to a Northern Pomo language class sponsored by the Mendo-Lake Pomo Council.
Food Insecurity and Farmers’ Adaptation Among Highland Communities in Northern Thailand
Creators: name: Ekasingh, Benchaphun
name: Kramol, Prathanthip
name: Teerakul, Nuttamon
name: Kaewmanee, Pimpimon
name: Ekasingh, Benchaphun
name: Kramol, Prathanthip
name: Teerakul, Nuttamon
name: Kaewmanee, Pimpimon
Publisher: name: Unknown
Year: 2017
Subjects: subject: Food Security and Poverty
subject: micro-level food insecurity
subject: adaptation
subject: food consumption
subject: highlanders
subject: Thailand

description: This study used a value of food consumption approach to estimate the status of food insecurity among eight highland sites in Northern Thailand and reaffirm the food insecurity status among the highlanders. The results show that food insecurity incidence in these locations reached as high as 30-40% of total households. This was particularly observed among those with larger-sized households and low assets, lacking irrigation water, or having limited income sources. Logistic regression analysis found that the key determinants of food security are income, availability of irrigation water, size of households, and neighbors’ quality of life. Strategies to cope with food security include growing more vegetables, raising more farm animals, and seeking more off-farm employment. Although the value of food consumption method used in this study has some methodological weaknesses, it could provide a fast, low cost, reasonable, and preliminary method of assessment of micro-level food insecurity so as to bring timely attention to policymakers to address the problem.
อิทธิพลของการกำหนดฟังก์ชันเป้าหมายในการออกแบบระบบรองรับการสั่นสะเทือนคอมเพรสเซอร์แบบสูบเดียว
Creators: name: ธีรพัฒน์ ชมภูคำ
Publisher: name: มหาวิทยาลัยมหาสารคาม
Year: 2557
Subjects: คอมเพรสเซอร์แบบลูกสูบ, การถ่วงสมดุล, การสั่นสะเทือน, แรงสั่น, โมเมนต์สั่น

description: ฉบับพิเศษ, วารสารวิทยาศาสตร์และเทคโนโลยี มหาวิทยาลัยมหาสารคาม
Oxygen abundances in the Galactic Bulge: evidence for fast chemical enrichment
Creators: name: Zoccali, M.
name: Lecureur, A.
name: Barbuy, B.
name: Hill, V.
name: Renzini, A.
name: Minniti, D.
name: Momany, Y.
name: Gomez, A.
name: Ortolani, S.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: AIMS: We spectroscopically characterize the Galactic Bulge to infer its star formation timescale, compared to the other Galactic components, through the chemical signature on its individual stars. METHODS: We derived iron and oxygen abundances for 50 K giants in four fields towards the Galactic bulge. High resolution (R=45,000) spectra for the target stars were collected with FLAMES-UVES at the VLT. RESULTS: Oxygen, as measured from the forbidden line at 6300 Å, shows a well-defined trend with [Fe/H], with [O/Fe] higher in bulge stars than in thick disk ones, which were known to be more oxygen enhanced than thin disk stars. CONCLUSIONS: These results support a scenario in which the bulge formed before and more rapidly than the disk, and therefore the MW bulge can be regarded as a prototypical old spheroid, with a formation history similar to that of early-type (elliptical) galaxies.
description: A&A Letters, in press
Depth resolution of transmission ERDA for H in Al under nuclear-elastically enhanced recoiling of H by 8 MeV He
Creators: name: Kudo, H.
name: Naramoto, H.
name: Sataka, M.
name: Ishii, S.
name: Tomita, K. Sasa S.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: This manuscript describes our experimental work being carried out to develop the previously published T-ERDA technique to measure H distribution in solids [Yamazaki et al., AIP Adv. 9 (2019) 105111]. From the experiments for the samples with H markers, we have identified the factors that degrade the depth resolution for analysis of H distribution, depending on the acceptance conditions of the detector.
description: 13 pages, 5 figures
การประเมินความหนาของผิวทางคอนกรีตสำหรับถนนทางเข้ามหาวิทยาลัยมหาสารคาม บรรจบทางหลวงหมายเลข 213 (ดอนยม)
Creators: name: นบปนม แก้วหานาม
Publisher: name: มหาวิทยาลัยมหาสารคาม
Year: 2557
Subjects: ความหนาผิวทางคอนกรีต, สมาคมปูนซีเมนต์ปอร์ตแลนด์, มหาวิทยาลัยมหาสารคาม, ทางหลวงหมายเลข 213, แคริฟอร์เนียแบริ่งเรโช, ปริมาณจราจร

description: ฉบับพิเศษ, วารสารวิทยาศาสตร์และเทคโนโลยี มหาวิทยาลัยมหาสารคาม
Assessing the Effect of Green Training on Agricultural Cooperatives’ Willingness to Adopt Green Practices
Creators: name: Cruz, Liezel S.
name: Quilloy, Karen P.
name: Cruz, Liezel S.
name: Quilloy, Karen P.
Publisher: name: Unknown
Year: 2018
Subjects: subject: Agribusiness
subject: green growth
subject: green practice
subject: training
subject: agricultural cooperatives

description: This study aims to examine the effect of green training on the decision of agricultural cooperatives to adopt green practices. A customized green training process was specifically designed for the study and applied to two selected agricultural cooperatives, namely Green Beans Multipurpose Cooperative (GBMPC) and Calamba Vegetable Growers Marketing Cooperative (CVGMC). Secondary and primary data were collected through cooperative visits and self-administered survey and analyzed using qualitative techniques. Key findings show improvements in the members’ self-ratings in terms of 1) knowledge on green growth, 2) support on the promotion and practices of green growth, and (3) belief on the benefits of green growth. This study also assessed the change in the green scores or the level of commitment of these cooperatives to pursue green growth opportunities before and after the training. GBMPC manifested a 90% improvement while CVGMC recorded a 25% increase in its green scores. Overall, the study confirms that training process can positively impact the decision to adopt green. Recommendations for policy directions and institutional support and interventions are suggested.
การปรับตัวด้านโภชนาการของผู้ป่วยไตวายเรื้อรังระยะสุดท้ายที่ได้รับการล้างไตทางช่องท้องชนิดถาวร (ซีเอพีดี) ที่มีระดับอัลบูมินในเลือดต่ำกว่าเกณฑ์ในโรงพยาบาล ศรีสะเกษ
Creators: name: จินตนา กิ่งแก้ว
Publisher: name: มหาวิทยาลัยมหาสารคาม
Year: 2557
Subjects: การปรับตัว, การปรับตัวด้านโภชนาการ, ผู้ป่วยไตเรื้อรังระยะสุดท้ายที่ได้รับการล้างไตทางช่องท้องชนิดถาวร

description: ฉบับพิเศษ, วารสารวิทยาศาสตร์และเทคโนโลยี มหาวิทยาลัยมหาสารคาม
การศึกษาการถ่ายเทความร้อนของท่อความร้อนแบบวงรอบชนิดคอยล์ขดในแนวตั้ง
Creators: name: อมร ดอนเมือง
Publisher: name: มหาวิทยาลัยมหาสารคาม
Year: 2557
Subjects: การถ่ายเทความร้อน, ท่อความร้อนแบบวงรอบชนิดคอยล์ขด, อุณหภูมิส่วนทำระเหย

description: ฉบับพิเศษ, วารสารวิทยาศาสตร์และเทคโนโลยี มหาวิทยาลัยมหาสารคาม
อิทธิพลของเคอร์คูมินต่อพัฒนาการแสดงออกของยีนที่เกี่ยวข้องกับภาวะเครียดในตับหนูไมซ์ที่ถูกแยกเลี้ยงเดี่ยว
Creators: name: วรัญญา จตุพรประเสริฐ
Publisher: name: มหาวิทยาลัยมหาสารคาม
Year: 2557
Subjects: เคอร์คูมิน, ยีนที่เกี่ยวข้องกับภาวะเครียด, แยกเลี้ยงเดี่ยว, อะโปไลโปโปรตีน อี

description: ฉบับพิเศษ, วารสารวิทยาศาสตร์และเทคโนโลยี มหาวิทยาลัยมหาสารคาม
การเตรียมวัสดุผสมคาร์บอน-ซิลิกาแอโรเจลด้วยวิธีการอย่างง่ายและเป็นมิตรกับสิ่งแวดล้อม
Creators: name: พนิดา พันธ์สมบัติ
Publisher: name: มหาวิทยาลัยมหาสารคาม
Year: 2557
Subjects: ซิลิกาแอโรเจล, คาร์บอน-ซิลิกาแอโรเจล, เส้นใยนุ่น, กระบวนการโซล-เจล

description: ฉบับพิเศษ, วารสารวิทยาศาสตร์และเทคโนโลยี มหาวิทยาลัยมหาสารคาม
การตอบสนองเชิงอุณหภาพของอาคาร กรณีศึกษาเปรียบเทียบการก่อสร้างอาคารด้วยคอนกรีตมวลเบาและคอนกรีตบล็อกที่มีส่วนผสมของวัสดุเหลือทิ้ง
Creators: name: อธิวัส บุญดา
Publisher: name: มหาวิทยาลัยมหาสารคาม
Year: 2557
Subjects: คอนกรีตมวลเบา, ปูนปลาสเตอร์, คอนกรีตบล็อก, วัสดุเหลือทิ้ง

description: ฉบับพิเศษ, วารสารวิทยาศาสตร์และเทคโนโลยี มหาวิทยาลัยมหาสารคาม
Evidence-based proposal for the number of ambulatory readings required for assessing blood pressure level in research settings: an analysis of the IDACO database
Creators: name: Yang, Wen-Yi
name: Thijs, Lutgarde
name: Zhang, Zhen-Yu
name: Asayama, Kei
name: Boggia, José
name: Hansen, Tine W.
name: Ohkubo, Takayoshi
name: Jeppesen, Jørgen
name: Stolarz-Skrzypek, Katarzyna
name: Malyutina, Sofia
name: Casiglia, Edoardo
name: Nikitin, Yuri
name: Li, Yan
name: Wang, Ji-Guang
name: Imai, Yutaka
name: Kawecka-Jaszcz, Kalina
name: O’Brien, Eoin
name: A. Staessen, Jan
Publisher: name: Taylor & Francis
Year: 2019
Subjects: subject: Medicine
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Neuroscience
subject: Pharmacology
subject: Biotechnology
subject: Cancer
subject: Mental Health

description: Background: Guidelines on the required number of ambulatory blood pressure (ABP) readings focus on individual patients. Clinical researchers often face the dilemma of applying recommendations and discarding potentially valuable information or accepting fewer readings. Methods: Starting from ABP recordings with ≥30/≥10 awake/asleep readings in 4277 participants enrolled in eight population studies in the International Database on Ambulatory Blood Pressure in Relation to Cardiovascular Outcomes (IDACO), we randomly selected a certain number of readings (from 30 to 1 awake and 10 to 1 asleep readings) at a time over 1000 bootstraps at each step. We evaluated: (i) concordance of the ABP level; (ii) consistency of the cross-classification based on office blood pressure and ABP; and (iii) accuracy in predicting cardiovascular complications. For each criterion, we fitted a regression line joining data points relating outcome to the number of readings covering the ranges of 30-20/10-7 for awake/asleep readings. Results: Reducing readings widened the SD of the systolic/diastolic differences between full (reference) and selected recordings from 1.7/1.2 (30 readings) to 14.3/10.3 mm Hg (single reading) during wakefulness, and from 1.9/1.4 to 10.3/7.7 mm Hg during sleep; lowered the κ statistic from 0.94 to 0.63, and decreased the hazard ratio associated with 10/5 mm Hg increments in systolic/diastolic ABP from 1.21/1.14 to 1.06/1.04 during wakefulness and from 1.26/1.17 to 1.14/1.08 during sleep. The first data points falling off these regression lines during wakefulness/sleep corresponded to 8/3 and 8/4 readings for criteria (i) and (iii) and to 5 awake readings for criterion (ii). Conclusions: 24-h ambulatory recordings with ≥8/≥4 awake/asleep readings yielded ABP levels similar to recordings including the guideline-recommended ≥20/≥7 readings. These criteria save valuable data in a research setting, but are not applicable to clinical practice.
Giants and loops in beta-deformed theories
Creators: name: Imeroni, Emiliano
name: Naqvi, Asad
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We study extended objects in the gravity dual of the N=1 beta-deformation of N=4 Super Yang-Mills theory. We identify probe brane configurations corresponding to giant gravitons and Wilson loops. In particular we identify a new class of objects, given by D5-branes wrapped on a two-torus with a world-volume gauge field strength turned on along the torus. These appear when the deformation parameter assumes a rational value and the gauge theory spectrum has additional branches of vacua. We give an interpretation of the new D5-brane dual giant gravitons in terms of rotating vacuum expectation values in these additional branches.
description: 26 pages; typos corrected, published version
Integration and Simulation of Solar Thermal Energy to Dairy Processes
Creators: name: Tannous, Hadi
name: Masera, Kemal
name: Tassou, Savvas
name: Stojceska, Valentina
Publisher: name: Zenodo
Year: 2021
Subjects: ASTEP
SHIP

description: The aim of this study was to investigate the current STE systems used in the dairy industry and recommend more efficient STE configurations to improve environmental and economic performances of the dairy processes.
Diet Constraints of Indigenous Children in Conflict and Non-conflict Areas of Davao del Norte, Philippines
Creators: name: Ricalde, Ruby Grace J.
name: Libranza, Alexander Ken P.
name: Alviola, Pedro A.
name: SArmiento, Jon Marx P.
name: Obsioma, Virgina P.
name: Limpoco, Marie Analiz April A.
name: Laorden, Nikko L.
name: Ricalde, Ruby Grace J.
name: Libranza, Alexander Ken P.
name: Alviola, Pedro A.
name: SArmiento, Jon Marx P.
name: Obsioma, Virgina P.
name: Limpoco, Marie Analiz April A.
name: Laorden, Nikko L.
Publisher: name: Unknown
Year: 2018
Subjects: subject: Food Consumption/Nutrition/Food Safety
subject: conflict
subject: diet optimization
subject: indigenous peoples
subject: linear programming

description: Indigenous Peoples (IP) have poorer nutritional status compares to non-IPs due to their remote and upland location, high poverty incidence, and occurrence of armed conflict, which limit their access to stable and nutritious food. This study compares the current diets of the IP children in conflict and non-conflict areas of Davao del Norte and determines the optimal diets that meet the recommended energy and nutrient intakes. Findings show that IP children in conflict area rely mostly on locally available foods such as root and tuber crops with minimal consumption of store-bought foods. In contrast, IP children in non-conflict area combine store-bought foods and locally available foods with higher consumption on the former food source. Both diets, however, have low levels of energy and nutrient intakes. When optimized using a linear programming formulation, fats, riboflavin, and iron needs were not satisfactorily met due to limited local food resources. Thus, diversifying their diet through farming other crops especially legumes and raising poultry and small ruminant livestock is highly encouraged.
Correlation of Photon and Neutrino Fluxes in Blazars and Gamma Ray Bursts
Creators: name: Dermer, C.
name: Ramirez-Ruiz, E.
name: Le, T.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Relativistic black-hole jet sources are leading candidates for high energy (>> TeV) neutrino production. The relations defining (a) efficient photopion losses of cosmic-ray protons on target photons and (b) gamma-gamma opacity of gamma rays through that same target photon field imply clear multiwavelength predictions for when and at what energies blazars and GRBs should be most neutrino bright and gamma-ray dim. The use of multiwavelength observations to test the standard relativistic jet model for these source is illustrated.
description: 11 pages, 1 figure, ApJ Letters, in press
Investigation of flow field of clap & fling motion using immersed boundary coupled lattice Boltzmann method
Creators: name: S, Pradeep Kumar
name: De, Ashoke
name: Das, Debopam
Publisher: name: arXiv
Year: 2021
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: This paper deals with the investigation of flow field due to clap and fling mechanism using immersed boundary coupled with lattice Boltzmann method. The lattice Boltzmann method (LBM), an alternative to Navier Stokes solver, is used because of its simplicity and computational efficiency in solving complex moving boundary problems. Benchmark problems are simulated to validate the code, which is then used for simulating flow over two elliptic wing of aspect ratio 5 performing clap and fling flapping motion for different flow parameters such as Reynolds number (Re = 75,100,150), advance ratio (J = 10E-3,10E-2,2) and frequency (f = 0.05Hz,0.25Hz). Numerical simulation is able to capture typical low Reynolds number unsteady phenomena such as, 'wake vortex wing interaction', 'Kramer effect' and 'delayed stall'. The results are both qualitatively and quantitatively consistent with experimental observation. The parametric study involving different combinations of Re, f and J depict distinctly different aerodynamic performances providing physical insights into the flow physics. It is observed that a combination of low f, low J and high Re flow results in better aerodynamic performance. Pronounced lift enhancement via leading edge vortices are obtained in unsteady regime (J<1) compared to quasi-steady regime (J>1). The role of leading edge vortices in enhancing lift are investigated by studying the size and strength of these vortices for different flow conditions. For a given Re, the magnitude of maximum lift coefficient decreases with increasing f irrespective of the value of J; while the same is enhanced with the increasing Re.
SplitStrains, a tool to identify and separate mixed Mycobacterium tuberculosis infections from WGS data
Creators: name: Gabbassov, Einar
name: Moreno-Molina, Miguel
name: Comas, Iñaki
name: Libbrecht, Maxwell
name: Chindelevitch, Leonid
Publisher: name: arXiv
Year: 2022
Subjects: subject: Applications (stat.AP)
subject: FOS: Computer and information sciences

description: The occurrence of multiple strains of a bacterial pathogen such as M. tuberculosis or C. difficile within a single human host, referred to as a mixed infection, has important implications for both healthcare and public health. However, methods for detecting it, and especially determining the proportion and identities of the underlying strains, from WGS (whole-genome sequencing) data, have been limited. In this paper we introduce SplitStrains, a novel method for addressing these challenges. Grounded in a rigorous statistical model, SplitStrains not only demonstrates superior performance in proportion estimation to other existing methods on both simulated as well as real M. tuberculosis data, but also successfully determines the identity of the underlying strains. We conclude that SplitStrains is a powerful addition to the existing toolkit of analytical methods for data coming from bacterial pathogens and holds the promise of enabling previously inaccessible conclusions to be drawn in the realm of public health microbiology
title: Экономика труда
Creators: name: ELS IPR BOOKS
Publisher: name: Ай Пи Ар Медиа
Year: 2021

description: В учебном пособии освещены вопросы организации труда, нормирования и оплаты труда в рыночных условиях на примере предприятий горной отрасли. Рассматриваются эффективность труда и зарубежный опыт управления производительностью и оплаты труда. Подготовлено в соответствии с требованиями Федерального государственного образовательного стандарта высшего образования. Предназначено для студентов, обучающихся по направлениям подготовки 38.03.01 «Экономика» и 38.03.02 «Менеджмент», изучающих дисциплину «Экономика труда».
Medium-resolution spectroscopy of FORJ0332-3557: Probing the interstellar medium and stellar populations of a lensed Lyman-break galaxy at z=3.77
Creators: name: Cabanac, Remi A.
name: Valls-Gabaud, David
name: Lidman, Chris
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We recently reported the discovery of FORJ0332-3557, a lensed Lyman-break galaxy at z=3.77 in a remarkable example of strong galaxy-galaxy gravitational lensing. We present here a medium-resolution rest-frame UV spectrum of the source, which appears to be similar to the well-known Lyman-break galaxy MS1512-cB58 at z=2.73. The spectral energy distribution is consistent with a stellar population of less than 30 Ma, with an extinction of A(V)=0.5 mag and an extinction-corrected star formation rate SFR(UV) of 200-300 Msun/a. The Lyman-alpha line exhibits a damped profile in absorption produced by a column density of about N(HI) = (2.5+_1.0) 10^21 atoms/cm^2, superimposed on an emission line shifted both spatially (0.5 arcsec with respect to the UV continuum source) and in velocity space (+830 km/s with respect to the low-ionisation absorption lines from its interstellar medium), a clear signature of outflows with an expansion velocity of about 270 km/s. A strong emission line from HeII 164.04nm indicates the presence of Wolf-Rayet stars and reinforces the interpretation of a very young starburst. The metallic lines indicate sub-solar abundances of elements Si, Al, and C in the ionised gas phase.
description: MNRAS, in press. Figure 2 degraded to match arXiv file size limits
Removal of persistent organic contaminants from wastewater using a hybrid electrochemical-granular activated carbon (GAC) system
Creators: name: Norra, Giannis-Florjan
name: Radjenovic, Jelena
Publisher: name: arXiv
Year: 2021
Subjects: subject: Applied Physics (physics.app-ph)
subject: FOS: Physical sciences

description: A three-dimensional (3D) electrochemical flow-through reactor equipped with GAC packed bed, polarized by the electric field, was evaluated for the removal of persistent organic contaminants from real sewage effluent. The performance of the reactor was investigated for 27 consecutive runs at two anodic current densities, i.e., low current density (LCD) of 15 A m-2, and high current density (HCD) of 100 A m-2. In the HCD experiments, the adsorption ability of saturated GAC was increased, mainly due to the increase in the mesoporosity of GAC. A synergy between electrosorption/adsorption on GAC and electrooxidation was observed in terms of the removal of all target pollutants. DEET presented the highest synergy, ranging from 40-57%, followed by iopromide (22-46%), carbamazepine (15-34%) and diatrizoate (4-30%). The addition of GAC decreased the concentrations of toxic chlorate and perchlorate by 2-fold and 10-fold, respectively, due to their electrosorption on GAC. Also, 3D electrochemical system yielded lower concentrations of adsorbable organic iodide (AOI) and adsorbable organic chlorine (AOCl). Thus, addition of low amounts of GAC in electrochemical systems may be a low-cost and simple way of minimizing the formation and final effluent concentrations of toxic halogenated byproducts.
description: Manuscript: 29 pages, 2 tables and 5 figures; Supplementary Material: 1 text, 7 tables and 2 figures
Cell phone digital microscopy using an oil droplet
Creators: name: Szydlowski, NA
name: Jing, H
name: Alqashmi, M
name: Hu, Ying
Publisher: name: University of Illinois at Chicago
Year: 2021
Subjects: Uncategorized

description: We introduce an accessible cell phone imaging method using small droplets of microscope immersion oil and consumer-grade oils. Oil droplets were more resistant to evaporation than water droplets, and they resolved cellular structures that were visible using a 20x/0.75 objective. We optically characterized the droplets using a cell phone screen and resolution target. We further obtained cellular resolution images of an onion epidermis and a zea stem cross-section sample. Our droplet-based method enables stable optical imaging for diagnostic and educational purposes without custom setups, specialized components, or manufacturing processes.
QASHQADARYO VILOYATIDA - CHOʻL LANDSHAFT TIPLARINING HOSIL BOʻLISHINING ASOSIY XUSUSIYATLARI
Creators: name: Xasanov, Primjon
name: Xoʻshboqova, Mehriniso
Publisher: name: Zenodo
Year: 2023

description: Maqolada Qashqadaryo havzasida choʻl landshaftlarining shakllanishining asosiy xususiyatlari haqida fikr boradi. Havzada choʻl landshaft tiplarining hosil boʻlishi uning geologik taraqqiyoti bilan bogʻliq holda tarkib topgan. Maqola davomida, Qashqadaryo viloyati choʻl landshaftlarining hududiy joylashuv xususiyatlarining tavsifi keltirib berilgan.
FAMILY RELATIONS AS A PROCESS OF SOCIALIZATION IN THE SOCIALIZATION OF PRIMARY SCHOOL STUDENTS.
Creators: name: Melikozieva, Mavluda
name: Nabizhonova, Mokhera
name: Khabibullayeva, Maftuna
name: Khamraeva, Sakad
Publisher: name: Zenodo
Year: 2025

description: The article examines the family, which is of great importance in the upbringing of the younger generation, and the socialization of children in it as the main issue, as well as explains such concepts as labor relations, family environment issues, and family management problems as the main mechanism of socialization.
Factors Related to Export Intensity of Filipino Agripreneurs
Creators: name: De Castro, Melodee Marciana E.
name: Depositario, Dinah Pura T.
name: De Castro, Melodee Marciana E.
name: Depositario, Dinah Pura T.
Publisher: name: Unknown
Year: 2018
Subjects: subject: International Relations/Trade
subject: agripreneur
subject: export intensity
subject: ASEAN economic integration

description: This paper aims to determine the factors related to the export intensity of Filipino agripreneurs. Secondary data from the Global Entrepreneurship Monitor (GEM) Philippine economy database were utilized. The respondents were derived from the Adult Population Survey (APS) conducted among Filipino entrepreneurs from 2013 to 2015. Out of a total of 6,000 APS respondents, 344 involved in agriculture-related businesses served as sample of this study. Using tests of association, specifically, Cramer’s V, Spearman and Kendall’s Tau correlation, the gender of entrepreneur, location of enterprise, household income, network, fear of failure, motivation behind establishment of enterprise, perception of status and respect in the country of businessmen, publicity of success stories, awareness of Asian Economic Community (AEC) integration, perceived intensity of competition under AEC as well as perceived benefits and opportunities under ASEAN show significant association with export intensity. Commodity types and stages in the value chain were found to moderate these relationships. The results suggest that in order to boost internationalization among agripreneurs, there should be entrepreneurial trainings for would-be exporters to enhance their networking, self-confidence, risk-taking, and opportunity-seeking competencies. There should also be more orientations on AEC to increase agripreneurs’ awareness of the opportunities and challenges as well as success stories under ASEAN integration.
สารกาบ้า สารประกอบฟีโนลิกทั้งหมด และฤทธิ์ต้านอนุมูลอิสระของผลิตภัณฑ์ที่แปรรูปจากข้าว
Creators: name: จิราภรณ์ กระแสเทพ
Publisher: name: มหาวิทยาลัยมหาสารคาม
Year: 2557
Subjects: ข้าวกล้องงอก, ขนมจีน, สารกาบ้า, ฤทธิ์ต้านอนุมูลอิสระ

description: ฉบับพิเศษ, วารสารวิทยาศาสตร์และเทคโนโลยี มหาวิทยาลัยมหาสารคาม
ผลกระทบของระบบหัวฉีดน้ำต่อการสร้างแรงดันไฟฟ้าเครื่องกำเนิดไฟฟ้าแรงดันน้ำ
Creators: name: ชลธี โพธิ์ทอง
Publisher: name: มหาวิทยาลัยมหาสารคาม
Year: 2557
Subjects: ระบบหัวฉีดน้ำ, เครื่องกำเนิดไฟฟ้าแรงดันน้ำ, ระบบท่อส่งน้ำขนาดเล็ก

description: ฉบับพิเศษ, วารสารวิทยาศาสตร์และเทคโนโลยี มหาวิทยาลัยมหาสารคาม
Evaluation of Optimized Lumped-Parameter Models of Seated Human Body Exposed to Vertical Vibration
Creators: name: Goneyrani, Sattar Ghasemi
name: Maleki, Ali
Publisher: name: figshare
Year: 2021
Subjects: subject: 90299 Automotive Engineering not elsewhere classified
subject: FOS: Mechanical engineering
subject: 90302 Biomechanical Engineering
subject: FOS: Medical engineering
subject: 90399 Biomedical Engineering not elsewhere classified

description: Biomechanical modelling of human body has been of great importance in industry, since human body is vulnerable to vibration and chronic exposure to vibration is the culprit behind a great deal of illnesses. biomechanical modelling is based on experimental data and the aim is to create a design basis for vehicles and other stuff in contact with human body. In the present article, information about 3 independent lumped-parameter models and some models which were result of multi-objective optimization of independent models, are gathered and analysed. Multi-objective optimization is a novel approach, usually deploying genetic algorithms and results of analyzing models in this study suggest that optimization does not necessarily mean improvement. In this study, we numerically simulated above-mentioned models and validated their fitness to experimental data. Final results have proven that 7 degrees of freedom model proposed by Marzbanrad and Afkar is the best fitted model and can be used in industry as a basis for study of human body exposed to random vertical vibration with an almost realistic accuracy.
Orbital Period of the Dwarf Nova RXS J053234.9+624755
Creators: name: Kapusta, Ann B.
name: Thorstensen, John R.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We report spectroscopy of the newly discovered SU Ursae Majoris dwarf nova identified with the x-ray source RXS J053234.9+624755. Radial velocities of the H-alpha emission line in the quiescent state give an orbital period of 0.05620(4) d (80.93 min), which is among the shortest for SU UMa stars with determined periods. We also report UBVI magnitudes of the quiescent dwarf nova and surrounding stars. Using a previous measurement of the superhump period, we find the fractional superhump excess epsilon to be 0.016(4), which is not atypical of dwarf novae in this period range.
description: 14 pages; 4 figs, 1 png and 3 eps. Accepted by Publications of the Astronomical Society of the Pacific
การสังเคราะห์และตรวจสอบเอกลักษณ์ของวัสดุผสมแอโรเจล-โครงข่ายโลหะอินทรีย์ที่มีความพรุนระดับนาโนเมตร
Creators: name: กนกวรรณ แก้วคุณ
Publisher: name: มหาวิทยาลัยมหาสารคาม
Year: 2557
Subjects: โครงข่ายโลหะอินทรีย์, โซล-เจล, วัสดุผสม

description: ฉบับพิเศษ, วารสารวิทยาศาสตร์และเทคโนโลยี มหาวิทยาลัยมหาสารคาม
ผลของวิตามินซีต่อน้ำหนักตัว ค่าสังเกตทางสรีรวิทยา ค่าสังเกตของการเกิดภาวะเครียดออกซิเดชั่น ปริมาณสารต้านอนุมูลอิสระทั้งหมดและพยาธิสรีรวิทยาของตับในไก่เนื้อระหว่างการขนส่ง
Creators: name: พิมนภา บุญขยาย
Publisher: name: มหาวิทยาลัยมหาสารคาม
Year: 2557
Subjects: ไก่เนื้อ, การขนส่ง, วิตามินซี, สรีรวิทยา, พยาธิวิทยา

description: ฉบับพิเศษ, วารสารวิทยาศาสตร์และเทคโนโลยี มหาวิทยาลัยมหาสารคาม
การวิเคราะห์บันทึกการใช้งานของระบบอีเลิร์นนิงเพื่อให้คะแนนจิตพิสัย
Creators: name: วิรัตน์ พงษ์ศิริ
Publisher: name: มหาวิทยาลัยมหาสารคาม
Year: 2557
Subjects: บันทึกการใช้งานของระบบอีเลิร์นนิง, คะแนนจิตพิสัย, มูเดิ้ล

description: ฉบับพิเศษ, วารสารวิทยาศาสตร์และเทคโนโลยี มหาวิทยาลัยมหาสารคาม
Computational Characterizations of the Interactions Between the Pontacyl Violet 6R and Exoribonuclease as a Potential Drug Target Against SARS-CoV-2
Creators: name: Munaweera, R
name: Hu, Ying
Publisher: name: University of Illinois at Chicago
Year: 2021
Subjects: Uncategorized

description: We report a molecular-docking and virtual-screening-based identification and characterization of interactions of lead molecules with exoribonuclease (ExoN) enzyme in severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). From previously identified DEDDh/DEEDh subfamily nuclease inhibitors, our results revealed strong binding of pontacyl violet 6R (PV6R) at the catalytic active site of ExoN. The binding was found to be stabilized via two hydrogen bonds and hydrophobic interactions. Molecular dynamics simulations further confirmed the stability of PV6R at the active site showing a shift in ligand to reach a more stabilized binding. Using PV6R as the lead molecule, we employed virtual screening to identify potential molecular candidates that form strong interactions at the ExoN active site. Our study paves ways for evaluating the ExoN as a novel drug target for antiviral treatment against SARS-CoV-2.
การฝึกโปรแกรมเชิงซ้อนที่มีต่อความสามารถในการวิ่ง 31 ขา
Creators: name: ฐาปนา กิ่งคาน
Publisher: name: มหาวิทยาลัยมหาสารคาม
Year: 2557
Subjects: ความเร็ว, ความแข็งแรงของกล้ามเนื้อขา, การทรงตัว, ความคล่องแคล่วว่องไว, ปฏิกิริยาตอบสนอง

description: ฉบับพิเศษ, วารสารวิทยาศาสตร์และเทคโนโลยี มหาวิทยาลัยมหาสารคาม
Spin susceptibilities in magnetic type-I and type-II Weyl semimetals
Creators: name: Xiong, Feng
name: Han, Xingjie
name: Honerkamp, Carsten
Publisher: name: arXiv
Year: 2021
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We investigate interacting spin susceptibilities in lattice models for $\mathcal{T}$-reversal symmetry-broken Weyl semimetals. We employ a random phase approximation (RPA) method for the spin-SU(2)-symmetry-broken case that includes mixtures of ladder and bubble diagrams, beyond a SU(2)-symmetric case. Within this approach, the relations between the tendency towards magnetic order and the band structure tilt parameter $γ$ under different temperatures are explored. The critical interaction strength $U_c$ for magnetic ordering decreases as the tilt term changes from type-I Weyl semimetals to type-II. The lower temperature, the sharper is the drop in $U_c$ at the critical point between them. The variation of $U_c$ with a slight doping near half-filling is also studied. It is generally found that these Weyl systems show a strongly anisotropic spin response with an enhanced doubly degenerate transverse susceptibility perpendicular to tilt direction, inherited from $\mathcal{C}_{4z}$ rational symmetry of bare Hamiltonian, but with the longitudinal response suppressed with respect to that. For small tilts $γ$ and strong enough interaction, we find two degenerate ordering patterns with spin order orthogonal to the tilt direction but much shorter spin correlation length parallel to the spin direction. With increasing the tilt, the system develops instabilities with respect to in-plane magnetic orders with wavevector $(0,π, q_z)$ and $(π,0, q_z)$, with $q_z$ increasing from 0 to $π$ before the transition to a type-II Weyl semimetal is reached. These results indicate a greater richness of magnetic phases in correlated Weyl semimetals that also pose challenges for precise theoretical descriptions.
description: 10 pages, 8 figures
การพัฒนาแบบจำลองเพื่อการพยากรณ์การรักษาซ้ำของผู้ป่วยโรคจิตเภทโดยเทคนิคเหมืองข้อมูล
Creators: name: วีระยุทธ มายุศิริ
Publisher: name: มหาวิทยาลัยมหาสารคาม
Year: 2557
Subjects: ข้อมูลไม่สมดุล, เหมืองข้อมูล, โรคจิตเภท, การรักษาซ้ำ

description: ฉบับพิเศษ, วารสารวิทยาศาสตร์และเทคโนโลยี มหาวิทยาลัยมหาสารคาม
Detecting Highly Oscillatory Signals by Chirplet Path Pursuit
Creators: name: Candes, Emmanuel J.
name: Charlton, Philip R.
name: Helgason, Hannes
Publisher: name: arXiv
Year: 2006
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Statistics Theory (math.ST)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: This paper considers the problem of detecting nonstationary phenomena, and chirps in particular, from very noisy data. Chirps are waveforms of the very general form A(t) exp(iλϕ(t)), where λis a (large) base frequency, the phase ϕ(t) is time-varying and the amplitude A(t) is slowly varying. Given a set of noisy measurements, we would like to test whether there is signal or whether the data is just noise. One particular application of note in conjunction with this problem is the detection of gravitational waves predicted by Einstein's Theory of General Relativity. We introduce detection strategies which are very sensitive and more flexible than existing feature detectors. The idea is to use structured algorithms which exploit information in the so-called chirplet graph to chain chirplets together adaptively as to form chirps with polygonal instantaneous frequency. We then search for the path in the graph which provides the best trade-off between complexity and goodness of fit. Underlying our methodology is the idea that while the signal may be extremely weak so that none of the individual empirical coefficients is statistically significant, one can still reliably detect by combining several coefficients into a coherent chain. This strategy is general and may be applied in many other detection problems. We complement our study with numerical experiments showing that our algorithms are so sensitive that they seem to detect signals whenever their strength makes them detectable.
Transit facility allocation: Hybrid quantum-classical optimization
Creators: name: Gabbassov, Einar
Publisher: name: arXiv
Year: 2022
Subjects: subject: Optimization and Control (math.OC)
subject: Quantum Physics (quant-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: An essential consideration in urban transit facility planning is service efficiency and accessibility. Previous research has shown that reducing the number of facilities along a route may increase efficiency but decrease accessibility. Striking a balance between these two is a critical consideration in transit planning. Transit facility consolidation is a cost-effective way to improve the quality of service by strategically determining the desirable allocation of a limited number of facilities. This paper develops an optimization framework that integrates Geographical Information systems (GIS), decision-making analysis, and quantum technologies for addressing the problem of facility consolidation. Our proposed framework includes a novel mathematical model that captures non-linear interactions between facilities and surrounding demand nodes, inter-facility competition, ridership demand and spatial coverage. The developed model can harness the power of quantum effects such as superposition and quantum tunnelling and enables transportation planners to utilize the most recent hardware solutions such as quantum and digital annealers, coherent Ising Machines and gate-based universal quantum computers. This study presents a real-world application of the framework to the public transit facility redundancy problem in the British Columbia Vancouver metropolitan area. We demonstrate the effectiveness of our framework by reducing the number of facilities by 40% while maintaining the same service accessibility. Additionally, we showcase the ability of the proposed mathematical model to take advantage of quantum annealing and classical optimization techniques.
A Qualitative Assessment of Agri-Entrepreneurship Development Services for Agrarian Reform Communities in Buruanga, Aklan, Philippines
Creators: name: Belanio, John Lorenz R.
name: Hernando, Christine Mae D.
name: Dumpir, Duvince Zhalimar J.
name: Sartorio, Melanie R.
name: Belanio, John Lorenz R.
name: Hernando, Christine Mae D.
name: Dumpir, Duvince Zhalimar J.
name: Sartorio, Melanie R.
Publisher: name: Unknown
Year: 2018
Subjects: subject: Agribusiness
subject: development services
subject: project performance
subject: production system

description: Agri-entrepreneurship development services are critical support systems for agribusiness initiatives of cooperative enterprises engaged in the production of staple commodities such as rice. Thirty agrarian reform beneficiary-members of BENTCH Agrarian Reform Cooperative in Buruanga, Aklan were asked to assess the agri-entrepreneurship services project performance of the Agrarian Reform Community Connectivity and Economic Support Services (ARCCESS) of the Department of Agrarian Reform. This paper presents the results of such assessment, which covers the entire project period, from 15 January 2015 to 15 January 2016. Results show that agri-extension services and business development services were delivered to ARBs. All of the ARBs found project services relevant to their agri-enterprise needs, but pointed out the lack of adequate time for training and coaching, and farm technology demonstrations. The study recommends intensive coaching and mentoring sessions and demo farm practicum; maintaining a core of trainers within the cooperative; and a continuing partnership between DAR, service providers, and the beneficiary cooperative for follow-up training programs and agribusiness services, among others.
Magnetic-Field-Driven Antiferromagnetic Domain Wall Motion
Creators: name: Nakane, Jotaro J.
name: Kohno, Hiroshi
Publisher: name: arXiv
Year: 2021
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We theoretically study the antiferromagnetic domain wall motion actuated by an inhomogeneous external magnetic field. The Lagrangian and the equations of motion of antiferromagnetic spins under an inhomogeneous magnetic field are derived, first in terms of the Néel vector, and then using collective coordinates of the domain wall. A solution is found that describes the actuation of a domain wall by an inhomogeneous field, in which the motion is initiated by a paramagnetic response of wall magnetization, which is then driven by a Stern-Gerlach like force. The effects of pinning potential are also investigated. These results are in good agreement with atomistic simulations. While the present formulation contains the so-called intrinsic magnetization associated with Néel texture, a supplementary discussion is given to reformulate the theory in terms of physical magnetization without the intrinsic magnetization.
Radial and rotational velocities of young brown dwarfs and very low-mass stars in the Upper Scorpius OB association and the rho Ophiuchi cloud core
Creators: name: Kurosawa, Ryuichi
name: Harries, Tim J.
name: Littlefair, S. P.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present the results of a radial velocity (RV) survey of 14 brown dwarfs (BDs) and very low-mass (VLM) stars in the Upper Scorpius OB association (UScoOB) and 3 BD candidates in the rho Ophiuchi dark cloud core. We obtained high-resolution echelle spectra at the Very Large Telescope using Ultraviolet and Visual Echelle Spectrograph (UVES) at two different epochs for each object, and measured the shifts in their RVs to identify candidates for binary/multiple systems in the sample. The average time separation of the RV measurements is 21.6d, and our survey is sensitive to the binaries with separation < 0.1 au. We found that 4 out of 17 objects (or 24^{+16}_{-13} per cent by fraction) show a significant RV change in 4-33d time scale, and are considered as binary/multiple `candidates.' We found no double-lined spectroscopic binaries in our sample, based on the shape of cross-correlation curves. The RV dispersion of the objects in UScoOB is found to be very similar to that of the BD and VLM stars in Chamaeleon I (Cha I). We also found the distribution of the mean rotational velocities (v sin i) of the UScoOB objects is similar to that of the Cha I, but the dispersion of v sin i is much larger than that of the Cha I objects.
description: 10 pages, 5 figures, accepted for publication in MNRAS