cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Improving proxy accuracy : experiments with branch, memory, and over time behavior
Creators: name: Flolid, Steven Gregory
Publisher: name: The University of Texas at Austin
Year: 2021
Subjects: Proxies
Workload characterization
Simpoint

description: As computers and the workloads they run have grown in size and complexity, it has become difficult to test the performance and power of future products under design. These products (future processor and memory systems) are often designed on simulators that are orders of magnitude slower than the final product. Full-fledged workloads are simply too long and complex to run on cycle accurate simulators. For this reason, industry and academia have developed simulation region methodologies, such as SimPoint, that identify the most representative regions of the workloads. Most architecture researchers use dominant SimPoints in their architectural design explorations. However, in order to study runtime adaptive techniques for performance and power/energy management, it is important to capture the over time phase behavior of workloads. SimPoint has been demonstrated to capture average behavior accurately, but it is not known whether a sequence of SimPoints can capture the over time program phase behavior. To explore this, we propose SimTrace, an ordered sequence of SimPoints. We then use existing similarity techniques for time series to analyze and evaluate the accuracy of SimTrace to capture the over time phase behavior of the original workload. Using SPEC CPU 2017 benchmarks as a case study, we observe good accuracy for SimTrace: with less than 5% performance error (Instructions Per Cycle) for four time-series metrics. However, for techniques like SimTrace to work in real world environments techniques are needed to create simple executables for these SimPoints. One promising technique is program approximations which extract key characteristics from a workload. However, the techniques for creating Synthetic proxies are insufficient to handle current micro-architecture structures and the more complex workloads being run. Additionally, generating proxies has up to this point required expert tuning in order to perform well. This report covers some development on these proxies to increase automation and to extend the branch and memory models. Experimental results show improvements of up to 10x in accuracy for memory and branch behavior.
s-Process Abundances in Planetary Nebulae
Creators: name: Sharpee, Brian
name: Zhang, Yong
name: Williams, Robert
name: Pellegrini, Eric
name: Cavagnolo, Kenneth
name: Baldwin, Jack A.
name: Phillips, Mark
name: Liu, Xiao-Wei
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The s-process should occur in all but the lower mass progenitor stars of planetary nebulae, and this should be reflected in the chemical composition of the gas which is expelled to create the current planetary nebula shell. Weak forbidden emission lines are expected from several s-process elements in these shells, and have been searched for and in some cases detected in previous investigations. Here we extend these studies by combining very high signal-to-noise echelle spectra of a sample of PNe with a critical analysis of the identification of the emission lines of Z>30 ions. Emission lines of Br, Kr, Xe, Rb, Ba, and Pb are detected with a reasonable degree of certainty in at least some of the objects studied here, and we also tentatively identify lines from Te and I, each in one object. The strengths of these lines indicate enhancement of s-process elements in the central star progenitors, and we determine the abundances of Br, Kr, and Xe, elements for which atomic data relevant for abundance determination have recently become available. As representative elements of the ``light'' and ``heavy'' s-process peaks Kr and Xe exhibit similar enhancements over solar values, suggesting that PNe progenitors experience substantial neutron exposure.
description: 56 Pages, 6 figures, accepted for publication in ApJ This version corrects missing captions in Figure 1-3 and minor typos
Laboratory verification of electron-scale reconnection regions modulated by a three-dimensional instability
Creators: name: Greess, S.
name: Egedal, J.
name: Stanier, A.
name: Daughton, W.
name: Olson, J.
name: Lê, A.
name: Myers, R.
name: Millet-Ayala, A.
name: Clark, M.
name: Wallace, J.
name: Endrizzi, D.
name: Forest, C.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: Space Physics (physics.space-ph)
subject: FOS: Physical sciences

description: During magnetic reconnection in collisionless space plasma, the electron fluid decouples from the magnetic field within narrow current layers, and theoretical models for this process can be distinguished in terms of their predicted current layer widths. From theory, the off-diagonal stress in the electron pressure tensor is related to thermal non-circular orbit motion of electrons around the magnetic field lines. This stress becomes significant when the width of the reconnecting current layer approaches the small characteristic length scale of the electron motion. To aid in situ spacecraft and numerical investigations of reconnection, the structure of the electron diffusion region is here investigated using the Terrestrial Reconnection EXperiment (TREX). In agreement with the closely matched kinetic simulations, laboratory observations reveal the presence of electron-scale current layer widths. Although the layers are modulated by a current-driven instability, 3D simulations demonstrate that it is the off-diagonal stress that is responsible for breaking the frozen-in condition of the electron fluid.
description: Reviewed and accepted to the Journal of Geophysical Research: Space Physics. Accepted on 10 June 2021; in preprint at time of arxiv submission (13 June 2021)
Personal Entrepreneurial Competencies and Entrepreneurial Intention of Non-Business Students Enrolled in an Introductory Entrepreneurship Course
Creators: name: Reyes, Gemma U.
name: Mariano, Rachelle A.
name: Herrera, Maria Noriza Q.
name: Manipol, Nohreen Ethel P.
name: Cubardo, Jewel Joanna S.
name: Reyes, Gemma U.
name: Mariano, Rachelle A.
name: Herrera, Maria Noriza Q.
name: Manipol, Nohreen Ethel P.
name: Cubardo, Jewel Joanna S.
Publisher: name: Unknown
Year: 2018
Subjects: subject: Agribusiness
subject: personal entrepreneurial competency
subject: entrepreneurial intention
subject: entrepreneurship education

description: The objectives of the study are two-fold. The first is to find out the relationship between the personal entrepreneurial competencies (PEC), as identified by Management Systems International, and the entrepreneurial intention of non-business students who are taking up an introductory entrepreneurship course. The second is to determine whether the entrepreneurial competencies of the students improved after taking the course. Using Spearman rank-order correlation, the study reveals that eight of the ten entrepreneurial competencies have a significant correlation with entrepreneurial intention although the relationship ranges only from moderate to weak. The Wilcoxon signed-rank test was employed to test whether the post PEC scores are significantly higher than the pretest scores. The results show that, in general, there is an improvement in the competency scores of the students after taking the course. The study recommends that further investigation be done on other factors that could have a greater impact on students’ entrepreneurial intention.
ผลของระดับแกรมม่าอะมิโนบิวทีริค แอซิด (GABA) จากข้าวเปลือกงอกในสูตรอาหารต่อสมรรถนะการเจริญเติบโต และคุณภาพซากของไก่กระทง
Creators: name: Tola Ka
Publisher: name: มหาวิทยาลัยมหาสารคาม
Year: 2557
Subjects: แกรมม่าอะมิโนบิวทีริคแอชิด, ปริมาณการกินได้, การเจริญเติบโต, อัตราการเปลี่ยนอาหารเป็นน้ำหนัก, คุณภาพซาก

description: ฉบับพิเศษ, วารสารวิทยาศาสตร์และเทคโนโลยี มหาวิทยาลัยมหาสารคาม
Determinants of Buying and Consumption Patterns for Rice in CALABARZON Region, Philippines
Creators: name: Cabardo, Jewel Joanna S.
name: Depositario, Dinah Pura T.
name: Cabardo, Jewel Joanna S.
name: Depositario, Dinah Pura T.
Publisher: name: Unknown
Year: 2018
Subjects: subject: Crop Production/Industries
subject: rice
subject: buying patterns
subject: consumption pattern and behaviour
subject: CALABARZON region

description: The demand for rice is related to consumers’ buying and consumption patterns which in turn are influenced by various factors. This paper identifies the determinants of buying and consumption patterns for rice in the CALABARZON region. The study utilized secondary data from a consumer survey among 496 rice consumers in the region. The socio-demographic profile and personal factors as well as their buying and consumption patterns of the respondents were examined using descriptive statistics. Pearson correlation and Spearman Rank correlation were used to determine associations among sociodemographic factors, personal factors, and buying pattern variables. Multiple regression analysis was used to identify the determinants of buying and consumption pattern variables. Majority of the respondents are female, married, mothers, and college graduates; and belong to income classes 1 and 2. The most important intrinsic factor for uncooked rice is aroma and for cooked rice, moistness. For extrinsic factors, the price considered expensive or cheap for rice varies among the respondents. Socio-demographic characteristics have a strong association with the type of rice and consumers’ perceived expensive and cheap price for rice. Regression results, with income class as moderating variable, show that age, educational attainment, civil status, and gender, among others, are determinants of buying patterns; while household size and gender influence consumption patterns. It is recommended that rice stakeholders focus on how the information on the determinants affecting consumer’s purchasing and consumption patterns for rice can be utilized to develop appropriate marketing and product development strategies in the rice industry.
Continuous-wave 1.55 $μ$m diode-pumped surface emitting semiconductor laser for broadband multiplex spectroscopy
Creators: name: Jacquemet, Mathieu
name: Picqué, Nathalie
name: Guelachvili, Guy
name: Garnache, Arnaud
name: Sagnes, Isabelle
name: Strassner, Martin
name: Symonds, Clémentine
Publisher: name: arXiv
Year: 2007
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: A room temperature operating Vertical External Cavity Surface Emitting Laser is applied around 1550 nm to intracavity laser absorption spectroscopy analyzed by time-resolved Fourier transform interferometry. At an equivalent pathlength of 15 km, the high resolution spectrum of the semiconductor disk laser emission covers 17 nm simultaneously. A noise equivalent absorption coefficient at one second averaging equal to 1.5 10^{-10} cm^{-1}.Hz^{-1/2} per spectral element is reported for the 65 km longest path length employed.
description: Optics Letters in press (2007) in press
การพัฒนาอิฐอัดจากเถ้าชีวมวลและตะกอนน้ำประปา
Creators: name: เอกชัย แก่นวงศ์คำ
Publisher: name: มหาวิทยาลัยมหาสารคาม
Year: 2557
Subjects: วัสดุก่อผนัง, เถ้าชีวมวล, ตะกอนน้ำประปา, กำลังอัด, การดูดซึมน้ำ, การนำความร้อน

description: ฉบับพิเศษ, วารสารวิทยาศาสตร์และเทคโนโลยี มหาวิทยาลัยมหาสารคาม
Thermal losses characterization for the receiver of the SunDial, the rotary Fresnel collector
Creators: name: Barbero, Rubén
name: Montes, María José
name: Abbas, Rubén
name: Enriquez, Juan
name: Domingo, Jerónimo
name: Iranzo, Alfredo
name: Gómez, Mateo
name: Arnanz, David
name: Rovira, Antonio
Publisher: name: Zenodo
Year: 2021
Subjects: ASTEP
SHIP
Fresnel
CFD

description: This study is focused on characterizing heat losses at the solar receiver of the ASTEP project, the SunDial. Computational Fluid Dynamics (CFD) simulations were performed to predict the thermal losses from the external surface of the receiver.
TRPM7 is critical for short-term synaptic depression by regulating synaptic vesicle endocytosis
Creators: name: Jiang, ZJ
name: Li, W
name: Yao, LH
name: Saed, B
name: Rao, Y
name: Grewe, BS
name: McGinley, Andrea
name: Varga, K
name: Alford, Simon
name: Hu, Ying
name: Gong, Liang-Wei
Publisher: name: University of Illinois at Chicago
Year: 2021
Subjects: Uncategorized

description: TRPM7 contributes to a variety of physiological and pathological processes in many tissues and cells. With a widespread distribution in the nervous system, TRPM7 is involved in animal behaviors and neuronal death induced by ischemia. However, the physiological role of TRPM7 in CNS neuron remains unclear. Here, we identify endocytic defects in neuroendocrine cells and neurons from TRPM7 knockout (KO) mice, indicating a role of TRPM7 in synaptic vesicle endocytosis. Our experiments further pinpoint the importance of TRPM7 as an ion channel in synaptic vesicle endocytosis. Ca2+ imaging detects a defect in presynaptic Ca2+ dynamics in TRPM7 KO neuron, suggesting an importance of Ca2+ influx via TRPM7 in synaptic vesicle endocytosis. Moreover, the short-term depression is enhanced in both excitatory and inhibitory synaptic transmission from TRPM7 KO mice. Taken together, our data suggests that Ca2+ influx via TRPM7 may be critical for short-term plasticity of synaptic strength by regulating synaptic vesicle endocytosis in neurons.
Temperature dependence of Mott transition in VO_2 and programmable critical temperature sensor
Creators: name: Kim, Bong-Jun
name: Lee, Yong Wook
name: Chae, Byung-Gyu
name: Yun, Sun Jin
name: Oh, Soo-Young
name: Lim, Young-Sik
name: Kim, Hyun-Tak
Publisher: name: arXiv
Year: 2006
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The temperature dependence of the Mott metal-insulator transition (MIT) is studied with a VO_2-based two-terminal device. When a constant voltage is applied to the device, an abrupt current jump is observed with temperature. With increasing applied voltages, the transition temperature of the MIT current jump decreases. We find a monoclinic and electronically correlated metal (MCM) phase between the abrupt current jump and the structural phase transition (SPT). After the transition from insulator to metal, a linear increase in current (or conductivity) is shown with temperature until the current becomes a constant maximum value above T_{SPT}=68^oC. The SPT is confirmed by micro-Raman spectroscopy measurements. Optical microscopy analysis reveals the absence of the local current path in micro scale in the VO_2 device. The current uniformly flows throughout the surface of the VO_2 film when the MIT occurs. This device can be used as a programmable critical temperature sensor.
description: 4 pages, 3 figures
Scale-invariance in expanding and contracting universes from two-field models
Creators: name: Tolley, Andrew J.
name: Wesley, Daniel H.
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Astrophysics (astro-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We study cosmological perturbations produced by the most general two-derivative actions involving two scalar fields, coupled to Einstein gravity, with an arbitrary field space metric, that admit scaling solutions. For contracting universes, we show that scale-invariant adiabatic perturbations can be produced continuously as modes leave the horizon for any equation of state parameter $w \ge 0$. The corresponding background solutions are unstable, which we argue is a universal feature of contracting models that yield scale-invariant spectra. For expanding universes, we find that nearly scale-invariant adiabatic perturbation spectra can only be produced for $w \approx -1$, and that the corresponding scaling solutions are attractors. The presence of a nontrivial metric on field space is a crucial ingredient in our results.
description: 23 pages, oversight in perturbations calculation corrected, conclusions for expanding models modified
On rainbow-free colourings of uniform hypergraphs
Creators: name: Koerkamp, Ragnar Groot
name: Živný, Stanislav
Publisher: name: arXiv
Year: 2021
Subjects: subject: Combinatorics (math.CO)
subject: Discrete Mathematics (cs.DM)
subject: FOS: Mathematics
subject: FOS: Computer and information sciences

description: We study rainbow-free colourings of $k$-uniform hypergraphs; that is, colourings that use $k$ colours but with the property that no hyperedge attains all colours. We show that $p^*=(k-1)(\ln n)/n$ is the threshold function for the existence of a rainbow-free colouring in a random $k$-uniform hypergraph.
Entanglement dynamics of qubits in a common environment
Creators: name: An, Jun-Hong
name: Wang, Shun-Jin
name: Luo, Hong-Gang
Publisher: name: arXiv
Year: 2006
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We use the quantum jump approach to study the entanglement dynamics of a quantum register, which is composed of two or three dipole-dipole coupled two-level atoms, interacting with a common environment. Our investigation of entanglement dynamics reflects that the environment has dual actions on the entanglement of the qubits in the model. While the environment destroys the entanglement induced by the coherent dipole-dipole interactions, it can produce stable entanglement between the qubits prepared initially in a separable state. The analysis shows that it is the entangled decoherence-free states contained as components in the initial state that contribute to the stable entanglement. Our study indicates how the environmental noise produces the entanglement and exposes the interplay of environmental noise and coherent interactions of qubits on the entanglement.
description: The final version
A Deterministic and Storable Single-Photon Source Based on Quantum Memory
Creators: name: Chen, Shuai
name: Chen, Yu-Ao
name: Strassel, Thorsten
name: Yuan, Zhen-Sheng
name: Zhao, Bo
name: Schmiedmayer, Jörg
name: Pan, Jian-Wei
Publisher: name: arXiv
Year: 2006
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: A single photon source is realized with a cold atomic ensemble ($^{87}$Rb atoms). In the experiment, single photons, which is initially stored in an atomic quantum memory generated by Raman scattering of a laser pulse, can be emitted deterministically at a time-delay in control. It is shown that production rate of single photons can be enhanced by a feedback circuit considerably while the single-photon quality is conserved. Thus our present single-photon source is well suitable for future large-scale realization of quantum communication and linear optical quantum computation.
Farming Practices in Smallholder Pig Production in Vietnam: Implications for Food Safety
Creators: name: Huyen, Nguyen Thi Thu
name: Nga, Nguyen Thi Duong
name: Hung, Pham Van
name: Lapar, Lucila A.
name: Trung, Ninh Xuan
name: Unger, Fred
name: Pho, Nhguyen Van
name: Huyen, Nguyen Thi Thu
name: Nga, Nguyen Thi Duong
name: Hung, Pham Van
name: Lapar, Lucila A.
name: Trung, Ninh Xuan
name: Unger, Fred
name: Pho, Nhguyen Van
Publisher: name: Unknown
Year: 2018
Subjects: subject: Food Consumption/Nutrition/Food Safety
subject: Livestock Production/Industries
subject: pig production
subject: farming practice
subject: food safety

description: This paper aims to examine changes in pig farming practices that can improve food safety of pig products in Vietnamese smallholder pig production. The study covered 615 pig households, which were analyzed using descriptive statistical analysis. Results show that there is an increased trend of using own-produced piglets because farmers can apply strict vaccine scheme for their piglets. The percentage of farmers applying vaccine in pig production varies much depending on the type of diseases and location. Besides vaccine, farmers follow good farming practices such as applying “all-in all-out” rule, isolating new pigs, spraying disinfectant and cleaning pig barn regularly, and restricting visitors away from the pig pens. T-test results show that there are significant differences in some farming practices between the two provinces considered in the study. In general, farmers in Hung Yen adopt better production practices than farmers in Nghe An in terms of preventing pig diseases and dealing with sick and dead pigs. However, some farmers are also engaged in risky practices such as slaughtering sick pigs for home consumption, selling sick pigs to slaughterhouses at lower price, and throwing away dead pigs instead of properly disposing them. Increasing awareness of farmers about the importance of adopting good farming practices through training and use of mass media could mitigate food safety and animal health risks from pig production.
Light Field Reconstruction Using Convolutional Network on EPI and Extended Applications
Creators: name: Wu, Gaochang
name: Liu, Yebin
name: Fang, Lu
name: Dai, Qionghai
name: Chai, Tianyou
Publisher: name: arXiv
Year: 2021
Subjects: subject: Image and Video Processing (eess.IV)
subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Computer and information sciences

description: In this paper, a novel convolutional neural network (CNN)-based framework is developed for light field reconstruction from a sparse set of views. We indicate that the reconstruction can be efficiently modeled as angular restoration on an epipolar plane image (EPI). The main problem in direct reconstruction on the EPI involves an information asymmetry between the spatial and angular dimensions, where the detailed portion in the angular dimensions is damaged by undersampling. Directly upsampling or super-resolving the light field in the angular dimensions causes ghosting effects. To suppress these ghosting effects, we contribute a novel "blur-restoration-deblur" framework. First, the "blur" step is applied to extract the low-frequency components of the light field in the spatial dimensions by convolving each EPI slice with a selected blur kernel. Then, the "restoration" step is implemented by a CNN, which is trained to restore the angular details of the EPI. Finally, we use a non-blind "deblur" operation to recover the spatial high frequencies suppressed by the EPI blur. We evaluate our approach on several datasets, including synthetic scenes, real-world scenes and challenging microscope light field data. We demonstrate the high performance and robustness of the proposed framework compared with state-of-the-art algorithms. We further show extended applications, including depth enhancement and interpolation for unstructured input. More importantly, a novel rendering approach is presented by combining the proposed framework and depth information to handle large disparities.
description: Published in IEEE TPAMI, 2019
Stakeholder Convergence in the Revitalization of Community-Based Enterprises: The Case of Halog West Producers’ Cooperative in La Union, Philippines
Creators: name: Duque, JP Roma D,
name: Dizon, Josefina T.
name: Duque, JP Roma D,
name: Dizon, Josefina T.
Publisher: name: Unknown
Year: 2018
Subjects: subject: Agribusiness
subject: convergence
subject: sustainable enterprises
subject: supply chain
subject: community -based enterprise

description: Stakeholder convergence is a widely practiced approach in development particularly towards developing sustainable community-based enterprises. This study aims to assess the contributions of convergence in the sustainability of these enterprises by examining the case of the chichacorn enterprise of Halog West Producers’ Cooperative. Results show that convergence was instrumental in the revival of the enterprise with the institutional support that enabled the enterprise to develop its capacities to continue and improve its operations, promising a more sustainable enterprise in the long run. Specifically, the study found that effective partnership, streamlined inter-agency coordination, and clear communication among stakeholders are significant factors contributing to the sustainability of the enterprise.
Syntheses and studies of some graphite and graphite flouride intercalation compounds
Creators: name: Xia, Jun
Publisher: name: University of British Columbia
Year: 2010

description: The oxidative intercalation of S₂O₆F₂ into graphite ( SP-1 powder) in the gas phase has been studied. X-ray powder diffraction spectra shows that stage-1, stage-2 and stage-3 graphite fluorosulfates have been obtained. The compositions of these three compounds are C₇.₈SO₃F, C₁₅.₅SO₃F and C₂₄S0₃F according to gravimetry with the repeat space distances of 7.8lÅ, 11.08Å and 14.33Å respectively. X-ray photoelectron spectroscopy (XPS) has been extensively used to study some graphite acceptor intercalation compounds. Two effects have been observed, charge transfer leads to higher binding energy and Fermi Level shift to the lower binding energy relative to that of graphite. Graphite fluoride intercalation compounds of S₂O₆F₂, HSO₃F and HSO₃CF₃ have been synthesized by direct reactions. X-ray powder diffraction, XPS, IR, Raman and microanalysis have been employed to study these compounds. The results show that: A. There are some graphite islands in graphite fluorides, CF[formula omitted], when x<l. B. The islands can be intercalated by SW₂0₆F₂ to form stage-1 intercalation compounds and by HSO₃F and HSO₃CF₃ to form higher stage intercalation compounds. C. The intercalates for the intercalants of S₂O₆F₂, HS0₃F and HS0₃CF₃ are SO₃F-, HSO₃F and HS0₃CF₃ respectively.
Two different evolutionary types of comets proved by polarimetric and infrared properties of their dust
Creators: name: Kolokolova, L.
name: Kimura, H.
name: Kiselev, N.
name: Rosenbush, V.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Comets can be divided into two groups: type I, characterized by high gas/dust ratio, low polarization, and a weak or absent 10 micron silicate feature, and type II, for which a low gas/dust ratio, high polarization, and strong silicate feature are typical. We show that the low polarization is the apparent result of depolarization by gas contamination at low dust concentration, which, in turn, results from the dust in type I comets being concentrated near the nucleus. The simulations of thermal emission show that for more porous particles (BCCA), the silicate feature is more pronounced than more compact ones (BPCA), for which it even vanishes as the particles become larger. We also show that in both types of comets the main contribution to light scattering and emission comes from particles larger than 10 micron. Conclusions: .The strength of the silicate feature in the cometary infrared spectra suggests that the dust in type II comets consists of high-porosity aggregates, whereas the dust of type I comets contains low-porosity ones. This is consistent with the polarimetric features of these comets, which indicate that the dust in type I comets tends to concentrate near the nucleus. This may result from the predominance of highly processed particles in type I comets, whereas in type II comets we see pristine or slightly-processed dust. This conclusion is in accordance with the orbital characteristics of the comets. We have found that the strength of the silicate feature correlates with the semi-major axis of periodic comets and, for short-period comets, with the perihelion distance. Thus, the silicate feature weakens due to compaction of aggregate particles if a comet spends more time in the vicinity of the Sun, which allows the comet to accumulate a mantle on the surface of its nucleus.
การวิเคราะห์คุณลักษณะของพอลิแลคติกแอซิดนาโนคอมโพสิต
Creators: name: ยศฐา ศรีเทพ
Publisher: name: มหาวิทยาลัยมหาสารคาม
Year: 2557
Subjects: พอลิแลคติกแอซิด, นาโนเคลย์ คอมโพสิต, พลาสติกชีวภาพ, คุณสมบัติวัสดุ

description: ฉบับพิเศษ, วารสารวิทยาศาสตร์และเทคโนโลยี มหาวิทยาลัยมหาสารคาม
Poisson cohomology of plane Poisson structures with isolated singularities revisited
Creators: name: Qi, Zihao
name: Zhou, Guodong
Publisher: name: arXiv
Year: 2021
Subjects: subject: K-Theory and Homology (math.KT)
subject: Differential Geometry (math.DG)
subject: FOS: Mathematics
subject: 17B63, 14H20, 53D17

description: Continuing a work of Ph.~Monnier, we determine the Gerstenhaber algebra structure over the Poisson cohomology groups for a large class of Poisson structures with isolated singularities over the plane. It reveals that there exists a GAGA type phenomenon. We give an explicit description via generators and relations for the case of simple singularities.
[Copy of S.A. Barrett's Northern Pomo field notes]
Creators: name: Barrett, S.A.
name: Vihman, Eero
Publisher: name: California Language Archive, University of California, Berkeley
Year: 2015
Subjects: Pomo language

description: Hand copy of S.A. Barrett's field notes from 1902. Contains texts. Notebook 1 of 3. Includes a list of Spanish loans in Wappo not attested in N. Pomo.
Non-equilibrium in the Solar Neighbourhood using dynamical modelling with Gaia DR2
Creators: name: Kipper, Rain
name: Tenjes, Peeter
name: Tempel, Elmo
name: de Propris, Roberto
Publisher: name: arXiv
Year: 2021
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Matter distribution models of the Milky Way galaxy are usually stationary, although there are known to be wave-like perturbations in the disc at $\sim10\%$ level of the total density. Modelling of the overall acceleration field by allowing non-equilibrium is a complicated task. We must learn to distinguish whether density enhancements are persistent or not by their nature. In the present paper, we elaborate our orbital arc method to include the effects of massless perturbations and non-stationarities in the modelling. The method is tested by modelling of simulation data and shown to be valid. We apply the method to the Gaia DR 2 data within a region of $\sim 0.5$ kpc from the Sun and confirm that acceleration field in the Solar Neighbourhood has a perturbed nature -- the phase space density along the orbits of stars grow in the order of $h\lesssim 5\%$ per Myr due to non-stationarity. This result is a temporally local value and can be used only within the timeframe of a few Myrs. An attempt to pinpoint the origin of the perturbation shows that the stars having larger absolute angular momentum are the main carriers of the local perturbation. As they are faster than the average thin disc star, they are either originating further away and are close in their pericentre or they are perturbed locally by a fast co-moving perturber, such as gas disc inhomogenities.
description: 16 pages, 13 figures, resubmitted after addressing the referees comments
Valuing Groundwater in a Productive Aquifer Using the Production Function Approach: The Case of Rice Production in Lumban, Laguna, Philippines
Creators: name: Quilloy, Antonio Jesus A.
name: Yorobe, Jose M.
name: Ella, Victor B.
name: Lansigan, Felino P.
name: Cruz, Rex Victor O.
name: Quilloy, Antonio Jesus A.
name: Yorobe, Jose M.
name: Ella, Victor B.
name: Lansigan, Felino P.
name: Cruz, Rex Victor O.
Publisher: name: Unknown
Year: 2018
Subjects: subject: Environmental Economics and Policy
subject: production function
subject: revealed preference
subject: resource rent

description: Establishment of the price of groundwater is a necessary step in designing means for its sustainable management in rice production. There are several techniques that can be used in groundwater valuation. It is important to identify a valuation method that is appropriate to existing natural conditions within which the groundwater is situated. This paper aims to estimate the value of groundwater in a productive aquifer that is located in Lumban, Laguna, Philippines. Based on an estimated rice production function, the paper revealed that the value of groundwater extracted for rice production is approximately PhP 1.13 per m3 . Out of this estimated economic value, resource rent is roughly 66% while the remainder covers the financial cost associated with groundwater extraction.
Synthesis and reactions of unsaturated 14-membered lactones
Creators: name: Leslie, Ray
Publisher: name: University of British Columbia
Year: 2010

description: Via a lactonization of the open chain hydroxy acid, the 14-membered unsaturated lactones 14 and 15 were synthesised. Treatment of these two lactones with borane dimethylsulphide, disiamyl borane and 9BBN led to formationof hydroxy lactones 30, 31, 32 and 33. The structures of 31 and 32 were determined by comparison with known compounds whereas structures 30 and 33 were deduced by considering the transition structures of the hydroboration reaction. Although both the regio and the stereoselectivity of the reactions were poor the π-face selectivity was high. Product distributions were estimated by the conformational control induced by the ring, using Houk's parameters for the hydroboration transition structures, in an MM2 force field, to calculate their relative strain energies. [ formulas omitted]
Application of Solar Thermal Energy to Dairy Industry
Creators: name: Masera, Kemal
name: Tannous, Hadi
name: Tassou, Savvas
name: Stojceska, Valentina
Publisher: name: Zenodo
Year: 2021
Subjects: ASTEP
SHIP
STE

description: This study is focused on the integration of an advanced solar thermal system to dairy industry processes. The objectives are to: (i) understand the thermal heating and cooling requirements (ii) simulate different integration scenarios for solar thermal systems applications (iii) assess the solar energy contribution to the system. A case study of a diary company located in Greece was considered.
การพัฒนาหม้อผลิตไอน้ำโดยใช้ไม้ฟืนเป็นเชื้อเพลิงสำหรับนึ่งก้อนเชื้อเห็ด
Creators: name: วีระวัฒน์ ศรีชา
Publisher: name: มหาวิทยาลัยมหาสารคาม
Year: 2557
Subjects: หม้อผลิตไอน้ำ, ก้อนเชื้อเห็ด, นึ่งฆ่าเชื้อก้อนเชื้อเห็ด

description: ฉบับพิเศษ, วารสารวิทยาศาสตร์และเทคโนโลยี มหาวิทยาลัยมหาสารคาม
โครงสร้างแผ่นกระแสเฮลิโอสเฟียร์และขบวนที่เวียนซ้ำของ แอนไอโซโทรปีที่เพิ่มขนาดของรังสีคอสมิกกาแล็กติกในวัฏจักรสุริยะต่ำสุดที่ 23
Creators: name: ธนา ยีรัมย์
Publisher: name: มหาวิทยาลัยมหาสารคาม
Year: 2557
Subjects: รังสีคอสมิก, ลมสุริยะ, แอนไอโซโทรปี, แผ่นกระแสเฮลิโอสเฟียร์

description: ฉบับพิเศษ, วารสารวิทยาศาสตร์และเทคโนโลยี มหาวิทยาลัยมหาสารคาม
Simultaneously improving multiple imaging parameters with scattering media
Creators: name: Zhao, Fu
name: Du, Shuman
name: Liang, Dong
name: Liu, Jun
Publisher: name: arXiv
Year: 2021
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Traditional optical imaging systems can provide high-quality imaging with complicated and expensive optical design by eliminating aberrations. With the help of optical memory effect (ME), not independently improving single imaging parameter, but simultaneously improving several imaging parameters by adding scattering media to the imaging systems was demonstrated firstly. As an example, in a simple single-lens imaging system, except the depth-of-field (DOF) was improved greatly, spherical aberration, coma aberration and chromatic aberration were eliminated simultaneously by placing a scattering medium between the lens and the camera. The results indicate the potential applications of scattering media in many fields such as optical imaging, optical measurements and biomedical applications.
description: 9 pages, 6 figures
Organizational Transformation of a Public-Private Partnership: The Case of the Nueva Vizcaya Agricultural Terminal, Philippines
Creators: name: Montes, Nimfa Beatris D.
name: Rola, Agnes C.
name: Pabuayon, Isabelita M.
name: Despositario, Dinah Pura T.
name: Atienza, Vella A.
name: Montes, Nimfa Beatris D.
name: Rola, Agnes C.
name: Pabuayon, Isabelita M.
name: Despositario, Dinah Pura T.
name: Atienza, Vella A.
Publisher: name: Unknown
Year: 2018
Subjects: subject: Agribusiness
subject: public-private partnership
subject: market infrastructure
subject: organizational transformation
subject: governance
subject: entrepreneurial culture

description: The Nueva Vizcaya Agricultural Terminal (NVAT), Philippines is a mixed capital public-private joint venture established in Nueva Vizcaya in 2004 to address problems such as lack of markets and keen market competition. This study aims to describe NVAT’s organizational transformation, determine key factors that drove its transformation, and assess its current performance. The research made use of key informant interviews (KIIs), focused group discussions (FGDs), direct observations, and secondary data from records and manuals. Results show that transformation was achieved through crucial changes in governance, structure, core processes, culture, and strategies. The key drivers of transformation were the growing demand for fresh fruits and vegetables, dedicated leadership, and collective goal for good governance, among others. Through a farmers’ empowerment strategy and improved trading activities, operations were improved significantly. There were concrete gains in terms of relevance, effectiveness, efficiency, profitability, diversity, and sustainability. An entrepreneurial culture which promotes creativity and innovation should, however, be fostered in the organization. It was also recommended that NVAT should develop a succession plan, implement a continuing training and education process, and put in place a monitoring and evaluation mechanism.
Linear relations among 4-point functions in the high energy limit of string theory
Creators: name: Ho, Pei-Ming
name: Lin, Xue-Yan
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The decoupling of zero-norm states leads to linear relations among 4-point functions in the high energy limit of string theory. Recently it was shown that the linear relations uniquely determine ratios among 4-point functions at the leading order. The purpose of this paper is to extend the validity of the same approach to the next-to-leading order and higher orders.
description: 17 pages, references added, minor modification
ผลของไคโตซานต่อคุณภาพหลังการเก็บเกี่ยวและอายุการเก็บรักษาของมะม่วงพันธุ์มหาชนก
Creators: name: อุษณา ไตรนอก
Publisher: name: มหาวิทยาลัยมหาสารคาม
Year: 2557
Subjects: มะม่วงพันธุ์มหาชนก, ไคโตซาน, คุณภาพภายใน, การเคลือบผิว

description: ฉบับพิเศษ, วารสารวิทยาศาสตร์และเทคโนโลยี มหาวิทยาลัยมหาสารคาม
Yukawa Couplings in a Model with Gauge, Higgs and Matter Unification
Creators: name: Gogoladze, Ilia
name: Lee, Chin-Aik
name: Mimura, Yukihiro
name: Shafi, Qaisar
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We discuss how unification of the gauge, Higgs and (three chiral family) matter superfields can be realized from the compactification of a six dimensional supersymmetric SU(8) gauge theory over the orbifold R^4 x T^2/Z_3. The bulk gauge interaction includes Yukawa interactions to generate masses for quarks and leptons after the electroweak symmetry is broken. The Yukawa matrices in this case turn out to be antisymmetric, and thus not phenomenologically viable. To overcome this we introduce brane fields which are vector-like under the standard model gauge symmetry, and so do not alter the number of chiral families. In such a setup, the observed fermion masses and mixings can be realized by taking into account suppression effects from the effective Wilson line couplings and large volume of the extra dimensions.
description: 12 pages
Phonon-number resolution of voltage-biased mechanical oscillators with weakly-anharmonic superconducting circuits
Creators: name: Gely, Mario F.
name: Steele, Gary A.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Observing quantum phenomena in macroscopic objects, and the potential discovery of a fundamental limit in the applicability of quantum mechanics, has been a central topic of modern experimental physics. Highly coherent and heavy micro-mechanical oscillators controlled by superconducting circuits are a promising system for this task. Here, we focus in particular on the electrostatic coupling of motion to a weakly anharmonic circuit, namely the transmon qubit. In the case of a megahertz mechanical oscillator coupled to a gigahertz transmon, we explain the difficulties in bridging the large electro-mechanical frequency gap. To remedy this issue, we explore the requirements to reach phonon-number resolution in the resonant coupling of a megahertz transmon and a mechanical oscillator.
description: Code used to generate the figures available in Zenodo with the DOI identifier 10.5281/zenodo.4292367
Nitrogen and Ergosterol Concentrations Varied in Live Jack Pine Phloem Following Inoculations With Fungal Associates of Mountain Pine Beetle
Creators: Guevara-Rozo, Sydne
Hussain, Altaf
Cale, Jonathan A.
Klutsch, Jennifer G.
Rajabzadeh, Rahmatollah
Erbilgin, Nadir
Publisher: name: University of Alberta Library
Year: 2020

Bark beetles form symbiotic associations with multiple species of fungi that supplement their metabolic needs. However, the relative contributions of each symbiont to the nutrition of bark beetles have been largely unexplored. Thus, we evaluated the ability of three fungal symbionts of mountain pine beetle to concentrate nitrogen and produce ergosterol while infecting phloem of a novel host jack pine. Ergosterol was used as proxy to determine the fungal biomass (hyphal density) in the current study. We inoculated 80 trees in two forest stands with one of the three fungal species or a non-fungal (control) agar. Six weeks later, we collected phloem from the necrotic lesions induced by the fungi, uninfected tissues adjacent to lesions, and non-inoculated control trees. We found that nutritional contributions varied with fungal species. Nitrogen in lesions was higher in trees inoculated with Ophiostoma montium or control trees, relative to Grosmannia clavigera or Leptographium longiclavatum. Furthermore, concentrations of ergosterol
were higher in O. montium lesions compared to other tissues or treatments. These results suggest that O. montium differs from G. clavigera and L. longiclavatum in terms of acquiring nitrogen from host tissues and producing ergosterol.
INGLIS HÁM QARAQALPAQ TILLERINDE SÓZ TÁRTIBINIŃ SALISTIRMALI ANALIZI
Creators: name: Kadirbergenova, Gózzal
Publisher: name: Zenodo
Year: 2025

description: Bul maqalada inglis hám qaraqalpaq tillerinde sóz tártibiniń ózine tán ózgeshelikleri salıstırmalı tallanadı. Inglis tili qatań SVO (baslawısh-bayanlawısh-tolıqlawısh) sóz tártibine iye bolsa, qaraqalpaq tilinde sóz tártibi salıstırmalı erkinirek bolıp, máni hám pátti bildiriwde áhmiyetli rol atqaradı. Izertlewde hár eki tildiń sintaksislik quramı, sóz tártibiniń gáp mánisine tásiri hám awdarmada júzege keletuǵın mashqalalar tallanadı. Maqala nátiyjeleri inglis hám qaraqalpaq tillerin úyreniw hám awdarma procesinde áhmiyetli teoriyalıq hám ámeliy áhmiyetke iye.
Superconductivity in HEA-type compounds
Creators: name: Mizuguchi, Y.
name: Yamashita, A.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: Since the discovery of superconductivity in a high-entropy alloy (HEA) Ti-Zr-Nb-Hf-Ta in 2014, the community of superconductor science has explored new HEA superconductors to find the merit of the HEA states on superconducting properties. Since 2018, we have developed HEA-type compounds as superconductors or thermoelectric materials. As well known, compounds like intermetallic compounds or layered compounds are composed of multi crystallographic sites. In a HEA-type compounds, one or more sites are alloyed and total mixing entropy satisfies with the criterion of HEA. Herein, we summarize the synthesis methods, the crystal structural variation and superconducting properties of the HEA-type compounds, which include NaCl-type metal tellurides, CuAl2-type transition metal zirconides, high-Tc cuprates, and BiS2-based layered superconductors. The effects of the introduction of a HEA site in various kinds of complicated compounds are discussed from the structural-dimensionality viewpoint.
description: review article, 20 pages, 10 figures, 2 tables
Brackets, Sigma Models and Integrability of Generalized Complex Structures
Creators: name: Guttenberg, Sebastian
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: It is shown how derived brackets naturally arise in sigma-models via Poisson- or antibracket, generalizing a recent observation by Alekseev and Strobl. On the way to a precise formulation of this relation, an explicit coordinate expression for the derived bracket is obtained. The generalized Nijenhuis tensor of generalized complex geometry is shown to coincide up to a de-Rham closed term with the derived bracket of the structure with itself, and a new coordinate expression for this tensor is presented. The insight is applied to two known two-dimensional sigma models in a background with generalized complex structure. Introductions to geometric brackets on the one hand and to generalized complex geometry on the other hand are given in the appendix.
description: 48 pages (27 without appendix), created with LyX, based on LaTeX, including hyperrefs. Typos in (2.162)-(2.167) and in (3.15) fixed. Content agrees with JHEP-Version. Page numbers and equation numbers agree with old version but not with JHEP version!
Quantum emulsion: a glassy phase of bosonic mixtures in optical lattices
Creators: name: Roscilde, Tommaso
name: Cirac, J. Ignacio
Publisher: name: arXiv
Year: 2006
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: We numerically investigate mixtures of two interacting bosonic species with unequal parameters in one-dimensional optical lattices. In large parameter regions full phase segregation is seen to minimize the energy of the system, but the true ground state is masked by an exponentially large number of metastable states characterized by microscopic phase separation. The ensemble of these quantum emulsion states, reminiscent of emulsions of immiscible fluids, has macroscopic properties analogous to those of a Bose glass, namely a finite compressibility in absence of superfluidity. Their metastability is probed by extensive quantum Monte Carlo simulations generating a rich correlated stochastic dynamics. The tuning of the repulsion of one of the two species via a Feshbach resonance drives the system through a quantum phase transition to the superfluid state.
description: 4 pages, 3 figures
Some new results concerning the vacuum in Dirac Hole Theory
Creators: name: Solomon, Dan
Publisher: name: arXiv
Year: 2006
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: In Dirac's hole theory the vacuum state is generally believed to be the state of minimum energy. It will be shown that this is not, in fact, the case and that there must exist states in hole theory with less energy than the vacuum state. It will be shown that energy can be extracted from the hole theory vacuum state through the application of an electric field.
description: Accepted by Physica Scripta, 19 pages