cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Law of large numbers for random walks on attractive spin-flip dynamics
Creators: name: Bethuelsen, Stein Andreas
name: Heydenreich, Markus
Publisher: name: arXiv
Year: 2014
Subjects: subject: Probability (math.PR)
subject: FOS: Mathematics
subject: 82C41 (Primary), 82C22, 60K37, 60F10, 60F15, 39B62 (Secondary)

description: We prove a law of large numbers for certain random walks on certain attractive dynamic random environments when initialised from all sites equal to the same state. This result applies to random walks on $\mathbb{Z}^d$ with $d\geq1$. We further provide sufficient mixing conditions under which the assumption on the initial state can be relaxed, and obtain estimates on the large deviation behaviour of the random walk. As prime example we study the random walk on the contact process, for which we obtain a law of large numbers in arbitrary dimension. For this model, further properties about the speed are derived.
description: 26 pages. Revised version. Changes made to the presentation of the main theorems and their proofs. To appear in Stoch. Proc. Appl
Electron pulse train accelerated by a linearly polarized Laguerre-Gaussian laser beam
Creators: name: Shi, Yin
name: Blackman, David R
name: Zhu, Ping
name: Arefiev, Alexey
Publisher: name: arXiv
Year: 2022
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: A linearly polarized Laguerre-Gaussian (LP-LG) laser beam with a twist index $l = -1$ has field structure that fundamentally differs from the field structure of a conventional linearly polarized Gaussian beam. Close to the axis of the LP-LG beam, the longitudinal electric and magnetic fields dominate over the transverse components. This structure offers an attractive opportunity to accelerate electrons in vacuum. It is shown, using three dimensional particle-in-cell simulations, that this scenario can be realized by reflecting an LP-LG laser off a plasma with a sharp density gradient. The simulations indicate that a 600~TW LP-LG laser beam effectively injects electrons into the beam during the reflection. The electrons that are injected close to the laser axis experience a prolonged longitudinal acceleration by the longitudinal laser electric field. The electrons form distinct monoenergetic bunches with a small divergence angle. The energy in the most energetic bunch is 0.29 GeV. The bunch charge is 6~pC and its duration is $\sim 270$~as. The divergence angle is just \dg{0.57} (10~mrad). By using a linearly polarized rather than a circularly polarized Laguerre-Gausian beam, our scheme makes it easier to demonstrate the electron acceleration experimentally at a high-power laser facility.
Two-stage Sampling, Prediction and Adaptive Regression via Correlation Screening (SPARCS)
Creators: name: Firouzi, Hamed
name: Hero, Alfred
name: Rajaratnam, Bala
Publisher: name: arXiv
Year: 2015
Subjects: subject: Machine Learning (stat.ML)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: This paper proposes a general adaptive procedure for budget-limited predictor design in high dimensions called two-stage Sampling, Prediction and Adaptive Regression via Correlation Screening (SPARCS). SPARCS can be applied to high dimensional prediction problems in experimental science, medicine, finance, and engineering, as illustrated by the following. Suppose one wishes to run a sequence of experiments to learn a sparse multivariate predictor of a dependent variable $Y$ (disease prognosis for instance) based on a $p$ dimensional set of independent variables $\mathbf X=[X_1,\ldots, X_p]^T$ (assayed biomarkers). Assume that the cost of acquiring the full set of variables $\mathbf X$ increases linearly in its dimension. SPARCS breaks the data collection into two stages in order to achieve an optimal tradeoff between sampling cost and predictor performance. In the first stage we collect a few ($n$) expensive samples $\{y_i,\mathbf x_i\}_{i=1}^n$, at the full dimension $p\gg n$ of $\mathbf X$, winnowing the number of variables down to a smaller dimension $l < p$ using a type of cross-correlation or regression coefficient screening. In the second stage we collect a larger number $(t-n)$ of cheaper samples of the $l$ variables that passed the screening of the first stage. At the second stage, a low dimensional predictor is constructed by solving the standard regression problem using all $t$ samples of the selected variables. SPARCS is an adaptive online algorithm that implements false positive control on the selected variables, is well suited to small sample sizes, and is scalable to high dimensions. We establish asymptotic bounds for the Familywise Error Rate (FWER), specify high dimensional convergence rates for support recovery, and establish optimal sample allocation rules to the first and second stages.
description: To appear in IEEE Transactions on Information Theory. 40 Pages. arXiv admin note: text overlap with arXiv:1303.2378
Satisfied Generation Y Parents Spread Good Recommendations: Satisfaction, Service Quality, and Brand Trusts Impact on Word of Mouth in International Education
Creators: name: Stribbell, Howard
Publisher: name: ชมรมวิทยาลัยนวัตกรรมการจัดการ
Year: 2022
Subjects: Satisfaction
Service Quality
Brand Trust
Word of Mouth
International Education
Mediation Effect

description: วารสารวิชาการ การจัดการภาครัฐและเอกชน, 4, 2, 53-71
Twisted plasma waves driven by twisted ponderomotive force
Creators: name: Shi, Yin
name: Blackman, D. R.
name: Kingham, R. J.
name: Arefiev, A. V.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: We present results of twisted plasma waves driven by twisted ponderomotive force. With beating of two, co-propagating, Laguerre-Gaussian (LG) orbital angular momentum (OAM) laser pulses with different frequencies and also different twist indices, we can get twisted ponderomotive force. Three-dimensional particle-in-cell simulations are used to demonstrate the twisted plasma waves driven by lasers. The twisted plasma waves have an electron density perturbation with a helical rotating structure. Different from the predictions of the linear fluid theory, the simulation results show a nonlinear rotating current and a static axial magnetic field. Along with the rotating current is the axial OAM carried by particles in the twisted plasma waves. Detailed theoretical analysis of twisted plasma waves is given too.
ความรู้ ทัศนคติของนักศึกษาพยาบาลต่อภาวะสับสนเฉียบพลันในผู้สูงอายุ
Creators: name: วรจรรฑญาร์ มงคลดิษฐ์
Publisher: name: ชมรมวิทยาลัยนวัตกรรมการจัดการ
Year: 2022
Subjects: ความรู้
ทัศนคติ
ภาวะสับสนเฉียบพลันในผู้สูงอายุ

description: วารสารวิชาการ การจัดการภาครัฐและเอกชน, 4, 2, 72-85
การศึกษาเกี่ยวกับสภาพปัจจุบันและปัญหาการจัดการทุนมนุษย์ของวิสาหกิจขนาดกลางและขนาดย่อมในเขตกรุงเทพมหานครและปริมณฑล
Creators: name: อรุณเดช  มารัตน์
Publisher: name: ชมรมวิทยาลัยนวัตกรรมการจัดการ
Year: 2022
Subjects: การจัดการทุนมนุษย์
การจัดการความรู้
ความผูกพันต่อองค์กร

description: วารสารวิชาการ การจัดการภาครัฐและเอกชน, 4, 2, 86-96
สภาพปัญหาและแนวทางแก้ไขปัญหาการจัดการศึกษานอกระบบและการศึกษาตามอัธยาศัยสำหรับนักศึกษา กศน.ในเรือนจำกลางชลบุรี
Creators: name: สมปรารถนา หาญโยธา
Publisher: name: ชมรมวิทยาลัยนวัตกรรมการจัดการ
Year: 2022
Subjects: การจัดการศึกษานอกระบบและการศึกษาตามอัธยาศัย
เรือนจำกลางชลบุรี

description: วารสารวิชาการ การจัดการภาครัฐและเอกชน, 4, 2, 97-111
Supplemental Material for Schreck, Piepho, and Schlather, 2019
Creators: name: Schreck, Nicholas
name: Hans-Peter Piepho
name: Schlather, Martin
Publisher: name: Figshare
Year: 2019
Subjects: subject: 60408 Genomics
subject: FOS: Biological sciences
subject: Genetics

description: Supplemental material for the paper;
We provide more detail for the estimation of the unconditional expectation and the best predictor of the additive genomic variance in random-effects models.
We have also included programming code.
Use of Opportunistic Clinical Data and a Population Pharmacokinetic Model to Support Dosing of Clindamycin for Premature Infants to Adolescents
Creators: name: Poindexter, B. B.
name: Melloni, C.
name: Cohen-Wolkowiez, M.
name: Lewis, K. C.
name: Mendley, S. R.
name: Gonzalez, D.
name: Sullivan, J. E.
name: Lewandowski, A.
name: Benjamin, D. K.
name: Watt, K. M.
name: Autmizguine, J.
name: Delmore, P.
name: Yogev, R.
name: Harper, B.
name: Capparelli, E. V.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2014

description: Clindamycin is commonly prescribed to treat children with skin and skin structure infections (including those caused by community-acquired methicillin-resistant Staphylococcus aureus [CA-MRSA]), yet little is known about the pharmacokinetics (PK) across pediatric age groups. A population PK analysis was performed in NONMEM using samples collected in an opportunistic study from children receiving intravenous clindamycin per standard of care. The final model was used to optimize pediatric dosing to match adult exposure proven effective against CA-MRSA. A total of 194 plasma PK samples collected from 125 children were included in the analysis. Median age (range) was 3.3 years (0–20). Median dosing was 9.9 mg/kg/dose (3.8–15.1). A 1-compartment model described the data well. The final model included body weight and a sigmoidal maturation relationship between postmenstrual age (PMA) and clearance (CL): CL (L/h)=13.7*(weight/70)0.75*(PMA3.1/(43.63.1+PMA3.1)); V (L)=61.8*(weight/70). Maturation reached 50% adult CL values at ~44 weeks PMA. Our findings support age-based dosing.
On the viability of the truncated Israel-Stewart theory in cosmology
Creators: name: Shogin, Dmitry
name: Amundsen, Per Amund
name: Hervik, Sigbjørn
Publisher: name: arXiv
Year: 2014
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We apply the causal Israel-Stewart theory of irreversible thermodynamics to model the matter content of the universe as a dissipative fluid with bulk and shear viscosity. Along with the full transport equations we consider their widely used truncated version. By implementing a dynamical systems approach to Bianchi type IV and V cosmological models with and without cosmological constant, we determine the future asymptotic states of such universes and show that the truncated Israel-Stewart theory leads to solutions essentially different from the full theory. The solutions of the truncated theory may also manifest unphysical properties. Finally, we find that in the full theory shear viscosity can give a substantial rise to dissipative fluxes, driving the fluid extremely far from equilibrium, where the linear Israel-Stewart theory ceases to be valid.
description: 18 pages, 2 figures
การพัฒนาเครื่องดื่มเพื่อจำหน่ายเชิงพาณิชย์แบบร้านหน้าฟาร์มของสหกรณ์โคนมไทย-เดนมาร์คห้วยสัตว์ใหญ่ จำกัด
Creators: name: สุนิสา มามาก
Publisher: name: ชมรมวิทยาลัยนวัตกรรมการจัดการ
Year: 2022
Subjects: การพัฒนาเครื่องดื่ม
จำหน่ายเชิงพาณิชย์แบบร้านหน้าฟาร์ม
สหกรณ์โคนมไทย- เดนมาร์คห้วยสัตว์ใหญ่ จำกัด

description: วารสารวิชาการ การจัดการภาครัฐและเอกชน, 4, 2, 112-122
Convergence Analysis for Regular Wireless Consensus Networks
Creators: name: Dhuli, Sateeshkrishna
name: Gaurav, Kumar
name: Singh, Y. N.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Distributed, Parallel, and Cluster Computing (cs.DC)
subject: Systems and Control (eess.SY)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Average consensus algorithms can be implemented over wireless sensor networks (WSN), where global statistics can be computed using communications among sensor nodes locally. Simple execution, robustness to global topology changes due to frequent node failures and underlying distributed philosophy has made consensus algorithms more suitable to WSNs. Since these algorithms are iterative in nature, their performance is characterized by convergence speed. We study the convergence of the average consensus algorithms for WSNs using regular graphs. We obtained the analytical expressions for optimal consensus and convergence parameters which decides the convergence time for r-nearest neighbor cycle and torus networks. We have also derived the generalized expression for optimal consensus and convergence parameters for m-dimensional r-nearest neighbor torus networks. The obtained analytical results agree with the simulation results and shown the effect of network dimension, number of nodes and transmission radius on convergence time. This work provides the basic analytical tools for managing and controlling the performance of average consensus algorithm in the finite sized practical networks.
description: 10 pages, 19 figures
ผลของการจัดกิจกรรมเกม ดนตรี และเคลื่อนไหวผสาน Unplugged Coding เพื่อส่งเสริมการคิดเชิงคำนวณของเด็กปฐมวัย
Creators: name: อารีวรรณ ไชยกาญจน์
Publisher: name: ชมรมวิทยาลัยนวัตกรรมการจัดการ
Year: 2022
Subjects: การคิดเชิงคำนวณ
กิจกรรมเกม ดนตรี และเคลื่อนไหวผสาน Unplugged Coding
เด็กปฐมวัย

description: วารสารวิชาการ การจัดการภาครัฐและเอกชน, 4, 2, 123-137
นวัตกรรมภาครัฐในการแก้ไขปัญหาน้ำเค็มรุกล้ำทะเลสาบและพื้นที่การเกษตรซ้ำซากในลุ่มน้ำทะเลสาบสงขลาของไทย
Creators: name: ยศธร ทวีพล
Publisher: name: ชมรมวิทยาลัยนวัตกรรมการจัดการ
Year: 2022
Subjects: น้ำทะเลบุกรุก
นวัตกรรมภาครัฐ
ทะเลสาบสงขลา

description: วารสารวิชาการ การจัดการภาครัฐและเอกชน, 4, 2, 138-154
f}rh; fo'o ;q) ¼>kj[kaM jktuhfr ds lanZHk esa½ % t;iky flag eqaMk dh Hkwfedk
Creators: name: FLerk FrXxk
Publisher: name: Zenodo
Year: 2022

description: Hkkjrh; jk"Vªokn us 3 flracj 1939 bZ0 dks f}rh; fo'o ;q) ds çdksi ds lkFk] ,d u;k eksM+ fy;k tks gekjs ns'k ds HkkX; dk QSlyk djuk FkkA >kj[kaM Hkh *f}rh; fo'o ;q)* dh tyrs yksg ls vkNqrk ugha FkkA o"kZ 1939 bZ0 >kj[kaM dh jktuhfr esa fofHkUu egRoiw.kZ ?kVukvksa ds lkFk fpfàr fd;k x;k FkkA 1939 bZ0 dh 'kq#vkr esa] t;iky flag eqaMk us vkfnoklh usrkvksa ds vuqjks/k dks tks 20 tuojh] 1939 bZ0 dks gksus okyh vkfnoklh egklHkk dh cSBd dh v/;{krk djus ds fy, Lohdkj dj fy;kA ml le; >kj[kaM ds bfrgkl dk ,d Lof.kZe vfoLej.kh; i`"B Fkk] D;ksafd blh fnu >kj[kaM dh vfLerk] vfLrRo vkSj igpku dh O;ogkfjd vfHkO;ä dh 'kq#vkr gqbZ FkhA1 ,d mPp f'kf{kr bZlkbZ ds :i esa mudh çflf) vkfnoklh] v‚DlQksMZ fo'ofo|ky; esa f'kf{kr gksus ds ckn] ,ELVMZe vksyafid esa Lo.kZ ind fotsrk *g‚dh Vhe* ds dIrku ds :i esa] chdkusj jkT; ds foÙk ea=h vkSj cekZ 'ksy daiuh ds egkçca/kd ds :i esa FksA vkfnoklh egklHkk esa 'kkfey gksus ls igys gh mudk yxkvks ;gka ds vkfnoklh turk ls gks pqds FksA >kj[kaM ds jktuhfr cSBd esa t;iky flag dks egklHkk dk v/;{k pquk x;kA muds l{ke usr`Ro esa vkfnoklh egklHkk tYn gh >kj[kaM esa jgus okys vkfnoklh yksxksa ds ,d cM+s oxZ dk çfrfuf/k jktuhfrd laxBu cu xbZA
Bipolar and ADHD Comorbidity: Both Artifact and Outgrowth of Shared Mechanisms
Creators: name: Frazier, Thomas W.
name: Youngstrom, Eric A.
name: Arnold, L. Eugene
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2010

description: Published rates of comorbidity between pediatric bipolar disorder (PBD) and attention-deficit/hyperactivity disorder (ADHD) have been higher than would be expected if they were independent conditions, but also dramatically different across different studies. This review examines processes that could artificially create the appearance of comorbidity or substantially bias estimates of the ADHD-BPD comorbidity rate, including: categorization of dimensional constructs, overlap among diagnostic criteria, over-splitting, developmental sequencing, and referral or surveillance biases. Evidence also suggests some mechanisms for “true” BPD-ADHD comorbidity, including shared risk factors, distinct subtypes, and weak causal relationships. Keys to differential diagnosis include focusing on episodic presentation and non-overlapping symptoms unique to mania.
การทดสอบสารพฤกษเคมี และฤทธิ์ในการต้านอนุมูลอิสระของกัญชา
Creators: name: สุมิตา นิยมเดชา
Publisher: name: ชมรมวิทยาลัยนวัตกรรมการจัดการ
Year: 2022
Subjects: กัญชา
สารสกัดหยาบ
ต้านอนุมูลอิสระ

description: วารสารวิชาการ การจัดการภาครัฐและเอกชน, 4, 2, 155-166
The Role of Glyph Blocks in Punctuating Mayan Texts
Creators: name: Knudsen, Andrew
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2023

description: This thesis investigates how glyph blocks organize Mayan texts. Understanding the factors that influence a glyph block’s composition and its syntactic correspondence helps reveal the degree of metalinguistic awareness of Mayan scribes. To address these points, I sampled 60 texts from the Mayan Hieroglyphic Database, compiled by Matthew Looper and Martha Macri (2023). Each glyph block from each text was tagged for an array of variables, including syntactic value and graphic composition. Linear and logistic regressions revealed that scribes possessed a sound understanding of phrasal structure, evident in their utilization of graphic compacting to fit syntactic units within a single block. Additionally, the phrasal value of glyph blocks varied depending on region, class, and presence of purely phonological spellings, showing that scribal practices differ in their preference for phrasal blocks. In sum, Mayan scribes were keenly aware of syntactic structure, using glyph blocks as a means of punctuating their texts.
Gradient schemes for the Signorini and the obstacle problems, and application to hybrid mimetic mixed methods
Creators: name: Alnashri, Yahya
name: Droniou, Jerome
Publisher: name: arXiv
Year: 2015
Subjects: subject: Numerical Analysis (math.NA)
subject: FOS: Mathematics
subject: 35J86, 65N12, 65N15, 76S05

description: Gradient schemes is a framework which enables the unified convergence analysis of many different methods -- such as finite elements (conforming, non-conforming and mixed) and finite volumes methods -- for $2^{\rm nd}$ order diffusion equations. We show in this work that the gradient schemes framework can be extended to variational inequalities involving mixed Dirichlet, Neumann and Signorini boundary conditions. This extension allows us to provide error estimates for numerical approximations of such models, recovering known convergence rates for some methods, and establishing new convergence rates for schemes not previously studied for variational inequalities. The general framework we develop also enables us to design a new numerical method for the obstacle and Signorini problems, based on hybrid mimetic mixed schemes. We provide numerical results that demonstrate the accuracy of these schemes, and confirm our theoretical rates of convergence.
Measurement Non-invariance in Machine Learning: An Intersection of Machine Learning Bias and Test Bias
Creators: name: Suzuki, Honoka
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2023

description: Algorithmic and machine learning bias have stirred concern in society as machine learning continues to channel into sensitive and high-stakes applications, including in healthcare, hiring, and criminal justice. While research surrounding machine learning bias may be relatively new, psychometricians have for decades researched a closely paralleled topic of test bias in psychological and educational testing. Leveraging the connection between these two fairness domains, this thesis studies the problem of machine learning bias from a measurement perspective, specifically focusing on measurement non-invariance in outcome variables as a source of machine learning bias. A framework is introduced, which conceptualizes machine learning bias in a psychometric sense and allows for tests of measurement invariance in machine learning. Using a Monte Carlo simulation study, the consequences of measurement bias on machine learning bias are demonstrated, as well as the effectiveness of a proposed bias mitigation technique to address these effects of measurement bias, which also follows from the proposed framework. The application of the proposed methods is illustrated with data from a large-scale health survey. Broader implications of the relevance of fairness in measurement for fairness in machine learning are discussed.
Overcoming black body radiation limit in free space: metamaterial superemitter
Creators: name: Maslovski, Stanislav I.
name: Simovski, Constantin R.
name: Tretyakov, Sergei A.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Here, we demonstrate that the power spectral density of thermal radiation at a specific wavelength produced by a body of finite dimensions set up in free space under a fixed temperature could be made theoretically arbitrary high, if one could realize double negative metamaterials with arbitrary small loss and arbitrary high absolute values of permittivity and permeability (at a given frequency). This result refutes the widespread belief that Planck's law itself sets a hard upper limit on the spectral density of power emitted by a finite macroscopic body whose size is much greater that the wavelength. Here we propose a physical realization of a metamaterial emitter whose spectral emissivity can be greater than that of the ideal black body under the same conditions. Due to the reciprocity between the heat emission and absorption processes such cooled down superemitter also acts as an optimal sink for the thermal radiation --- the "thermal black hole" --- which outperforms Kirchhoff-Planck's black body which can absorb only the rays directly incident on its surface. The results may open a possibility to realize narrowband super-Planckian thermal radiators and absorbers for future thermo-photovoltaic systems and other devices.
description: 34 pages, 7 figures (largely revised version with new numerical results added)
กลยุทธ์การตลาดเพื่อการท่องเที่ยววัฒนธรรมไท-ยวนของกาดฮิมน้ำพระยาทด ตำบลพระยาทด อำเภอเสาไห้ จังหวัดสระบุรี
Creators: name: นฤมลวรรณ สุขไมตรี
Publisher: name: ชมรมวิทยาลัยนวัตกรรมการจัดการ
Year: 2022
Subjects: กลยุทธ์การตลาด
การท่องเที่ยว
วัฒนธรรม

description: วารสารวิชาการ การจัดการภาครัฐและเอกชน, 4, 2, 167-179
การส่งเสริมรากฐานการเรียนรู้:ก้าวย่างที่สำคัญจากปฐมวัยสู่ประถมศึกษา
Creators: name: ชุติมา เล็กพงศ์
Publisher: name: ชมรมวิทยาลัยนวัตกรรมการจัดการ
Year: 2022
Subjects: ส่งเสริมการเรียนรู้ ครูปฐมวัย เด็กปฐมวัย รอยต่อปฐมวัยสู่ประถมศึกษา บทบาทผู้ปกครอง

description: วารสารวิชาการ การจัดการภาครัฐและเอกชน, 4, 2, 180-195
Axonopsis (Hexaxonopsis) falcifer Cook 1967
Creators: name: Pešić, Vladimir
name: Chatterjee, Tapas
name: Bordoloi, Sabitry
Publisher: name: Zenodo
Year: 2010
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Trombidiformes
Axonopsidae
Axonopsis
Axonopsis falcifer

description: Axonopsis (Hex a xonopsis) falcifer Cook, 1967
Records from the study area: Maharashtra—Cook (1967); Prasad (1974).
Habitat: Streams.
Distribution: India, Sri Lanka.
description: Published as part of Pešić, Vladimir, Chatterjee, Tapas & Bordoloi, Sabitry, 2010, A checklist of the water mites (Acari: Hydrachnidia) of India, with new records and description of one new species, pp. 1-54 in Zootaxa 2617 (1) on page 18, DOI: 10.11646/zootaxa.2617.1.1, http://zenodo.org/record/197964
Additional file 1: of The conserved actinobacterial transcriptional regulator FtsR controls expression of ftsZ and further target genes and influences growth and cell division in Corynebacterium glutamicum
Creators: name: Kraxner, Kim
name: Polen, Tino
name: Baumgart, Meike
name: Bott, Michael
Publisher: name: figshare
Year: 2019
Subjects: subject: Space Science
subject: Microbiology
subject: FOS: Biological sciences
subject: Genetics
subject: Molecular Biology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: 19999 Mathematical Sciences not elsewhere classified
subject: FOS: Mathematics
subject: Developmental Biology
subject: 110309 Infectious Diseases
subject: FOS: Health sciences
subject: Computational Biology

description: Contains additional methods, results, figures and tables. (PDF 3699 kb)
The spacetime associated with galactic dark matter halos
Creators: name: Matos, Tonatiuh
name: Nunez, Dario
name: Sussman, Roberto A.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We show how an adequate post--Newtonian generalization can be obtained for Newtonian dark matter halos associated with an empiric density profile. Applying this approach to halos that follow from the well known numerical simulations of Navarro, Frenk and White (NFW), we derive all dynamical variables and show that NFW halos approximatelly follow an ideal gas type of equation of state which fits very well to a polytropic relation in the region outside the core. This fact suggests that ``outer'' regions of NFW halos might be related to equilibrium states in the non--extensive Statistical Mechanics formalism proposed by Tsallis.
description: 6 pages, 1 figure
The Landscape of M-theory Compactifications on Seven-Manifolds with $G_2$ Holonomy
Creators: name: Halverson, James
name: Morrison, David R.
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Differential Geometry (math.DG)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: We study the physics of globally consistent four-dimensional $\mathcal{N}=1$ supersymmetric M-theory compactifications on $G_2$ manifolds constructed via twisted connected sum; there are now perhaps fifty million examples of these manifolds. We study a rich example that exhibits $U(1)^3$ gauge symmetry and a spectrum of massive charged particles that includes a trifundamental. Applying recent mathematical results to this example, we compute membrane instanton corrections to the superpotential and spacetime topology change in a compact model; the latter include both the (non-isolated) $G_2$ flop and conifold transitions. The conifold transition spontaneously breaks the gauge symmetry to $U(1)^2$, and associated field theoretic computations of particle charges make correct predictions for the topology of the deformed $G_2$ manifold. We discuss physical aspects of the abelian $G_2$ landscape broadly, including aspects of Higgs and Coulomb branches, membrane instanton corrections, and some general aspects of topology change.
description: v1: 37 pages. v2: references added. v3: more discussion of instanton zero modes. JHEP version v4: references corrected
Scalar field "mini--MACHOs": a new explanation for galactic dark matter
Creators: name: Hernández, Xavier
name: Matos, Tonatiuh
name: Sussman, Roberto A
name: Verbin, Yosef
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We examine the possibility that galactic halos are collisionless ensembles of scalar field ``massive compact halo objects'' (MACHOs). Using mass constraints from MACHO microlensing and from theoretical arguments on halos made up of massive black holes, as well as demanding also that scalar MACHO ensambles of all scales do not exhibit gravothermal instability (as required by consistency with observations of LSB galaxies), we obtain the range: $m\alt 10^{-7} M_\odot$ or $30 M_\odot\alt m\alt 100 M_\odot$. The rather narrow mass range of large MACHOs seems to indicate that the ensambles we are suggesting should be probably made up of scalar MACHOs in the low mass range (``mini--MACHOs''). The proposed model allows one to consider a non--baryonic and non--thermal fundamental nature of dark matter, while at the same time keeping the same phenomenology of the CDM paradigm.
description: 5 pages, 1 eps figure. RevTex 4 style. To appear in Physical Review D
Projected Nesterov's Proximal-Gradient Algorithm for Sparse Signal Reconstruction with a Convex Constraint
Creators: name: Gu, Renliang
name: Dogandžić, Aleksandar
Publisher: name: arXiv
Year: 2015
Subjects: subject: Computation (stat.CO)
subject: Machine Learning (stat.ML)
subject: FOS: Computer and information sciences

description: We develop a projected Nesterov's proximal-gradient (PNPG) approach for sparse signal reconstruction that combines adaptive step size with Nesterov's momentum acceleration. The objective function that we wish to minimize is the sum of a convex differentiable data-fidelity (negative log-likelihood (NLL)) term and a convex regularization term. We apply sparse signal regularization where the signal belongs to a closed convex set within the closure of the domain of the NLL; the convex-set constraint facilitates flexible NLL domains and accurate signal recovery. Signal sparsity is imposed using the $\ell_1$-norm penalty on the signal's linear transform coefficients or gradient map, respectively. The PNPG approach employs projected Nesterov's acceleration step with restart and an inner iteration to compute the proximal mapping. We propose an adaptive step-size selection scheme to obtain a good local majorizing function of the NLL and reduce the time spent backtracking. Thanks to step-size adaptation, PNPG does not require Lipschitz continuity of the gradient of the NLL. We present an integrated derivation of the momentum acceleration and its $\mathcal{O}(k^{-2})$ convergence-rate and iterate convergence proofs, which account for adaptive step-size selection, inexactness of the iterative proximal mapping, and the convex-set constraint. The tuning of PNPG is largely application-independent. Tomographic and compressed-sensing reconstruction experiments with Poisson generalized linear and Gaussian linear measurement models demonstrate the performance of the proposed approach.
Pseudo real closed field, pseudo p-adically closed fields and NTP2
Creators: name: Montenegro, Samaria
Publisher: name: arXiv
Year: 2014
Subjects: subject: Logic (math.LO)
subject: FOS: Mathematics
subject: 03C60, 03C45

description: The main result of this paper is a positive answer to the Conjecture 5.1 by A. Chernikov, I. Kaplan and P. Simon: If M is a PRC field, then Th(M) is NTP_2 if and only if M is bounded. In the case of PpC fields, we prove that if M is a bounded PpC field, then Th(M) is NTP_2. We also generalize this result to obtain that, if M is a bounded PRC or PpC field with exactly n orders or p-adic valuations respectively, then Th(M) is strong of burden n. This also allows us to explicitly compute the burden of types, and to describe forking.
Effects of autoclave- and microwave-assisted Caulerpa lentillifera extracts on the growth rate, reproduction, immunity and oxidative stress of Daphnia magna
Creators: name: Saelay, Sumintra
name: Satoh, Aneesah
name: Promjun, Warittha
name: Peerakietkhajorn, Saranya
Publisher: name: Taylor & Francis
Year: 2024
Subjects: subject: Evolutionary Biology
subject: FOS: Biological sciences
subject: Environmental Sciences not elsewhere classified
subject: Ecology
subject: Immunology
subject: FOS: Clinical medicine
subject: Biological Sciences not elsewhere classified
subject: Developmental Biology
subject: Inorganic Chemistry
subject: FOS: Chemical sciences
subject: Science Policy

description: Caulerpa lentillifera is a green alga that contains essential nutrients. This study investigated the effects of autoclave- and microwave-assisted C. lentillifera extracts (A-CLE and M-CLE) on the growth, reproduction, immunity, and oxidative stress in Daphnia magna. Both extracts were supplemented to D. magna at 1 to 5 g/L. The results showed that D. magna treated with 2 to 5 g/L of A-CLE produced juveniles faster than the control. Juveniles at 1 to 4 g/L A-CLE treatments increased. Moreover, juveniles in 1 g/L M-CLE treatment significantly increased, but the hatching time was not affected. A-CLE also stimulated the immunity of D. magna by increasing hemocytes in the 3 g/L treatment. Furthermore, both extracts did not affect the growth rate, phenoloxidase activity, malondialdehyde level, and catalase activity in D. magna. Therefore, our results indicated that both extracts could enhance the reproduction and immunity of D. magna. Our study is useful for the health improvement of D. magna.
Premenstrual mood changes in affective disorders.
Creators: name: The University of North Carolina at Chapel Hill University Libraries
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 1987

description: Mood changes during the premenstrual phase have been the focus of considerable research in recent years. Although there has been significant progress in the diagnosis and etiology of major affective disorders, the relation between these disorders and menstrual changes remains controversial. There have been contradictory reports and speculations on women's susceptibility to psychiatric disorders during the premenstrual phase. We describe three patients with a history of mood swings associated with menstruation in whom major affective disorders developed, necessitating intensive psychiatric treatment or admission to hospital. Among women who manifest menstrual mood changes, manic-depressive illness may develop only in a subgroup with genetic predisposition. In such cases the possibility of postpartum mania or depression should be kept in mind in follow-up.
Exact Solutions of G-Invariant Chiral Equations
Creators: name: Matos, Tonatiuh
Publisher: name: arXiv
Year: 1994
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We give a methodology for solving the chiral equations $(αg_{,z} g^{-1})_{,\overline z} + (αg_{,\overline z} g^{-1})_{,z} \ = \ 0 $ where $g$ belongs to some Lie group $G$. The solutions are writing in terms of Harmonic maps. The method could be used even for some infinite Lie groups. (Preprint CIEA-gr-94/06)
description: 8 TeX pages. Seminar presented at the First Mexican-Russian Meeting on Mathematical Physics, Mexico city, 1993
Reasons for patients' delay in response to symptoms of acute myocardial infarction.
Creators: name: Nolan, R
name: Wielgosz, M
name: Earp, J
name: Wielgosz, A
name: Biro, E
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 1988

description: Survival in the acute phase of myocardial infarction and the subsequent prognosis are critically dependent on the time between onset of symptoms and medical intervention. Studies have shown that the time that patients take to decide to seek help accounts for most of the delay. We documented the length of time from onset of symptoms to arrival in hospital for 201 patients consecutively admitted to one of four hospitals in the Regional Municipality of Ottawa-Carleton between October 1986 and February 1987 for suspected acute myocardial infarction. Of the 160 survivors 42% waited more than 4 hours (a critical time for effective thrombolytic therapy) before coming to hospital, and nearly a third did not arrive within 6 hours. On the basis of interviews conducted with 42 patients, sociodemographic factors, education, past experience with an acute myocardial infarction, a previous diagnosis of angina and a coronary-prone behaviour pattern did not explain the delay. How patients perceived the seriousness of their symptoms and how they used other illness-related coping strategies explained 46% of the variance in the delay. Interventions aimed at reducing the delay between onset of symptoms and treatment must focus on patients' preadmission behaviour.
Bounds for the normal approximation of the maximum likelihood estimator
Creators: name: Anastasiou, Andreas
name: Reinert, Gesine
Publisher: name: arXiv
Year: 2014
Subjects: subject: Statistics Theory (math.ST)
subject: Probability (math.PR)
subject: FOS: Mathematics

description: While the asymptotic normality of the maximum likelihood estimator under regularity conditions is long established, this paper derives explicit bounds for the bounded Wasserstein distance between the distribution of the maximum likelihood estimator (MLE) and the normal distribution. For this task, we employ Stein's method. We focus on independent and identically distributed random variables, covering both discrete and continuous distributions as well as exponential and non-exponential families. In particular, a closed form expression of the MLE is not required. We also use a perturbation method to treat cases where the MLE has positive probability of being on the boundary of the parameter space.
description: Published at http://dx.doi.org/10.3150/15-BEJ741 in the Bernoulli (http://isi.cbs.nl/bernoulli/) by the International Statistical Institute/Bernoulli Society (http://isi.cbs.nl/BS/bshome.htm)
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Creators: name: Dfork
Publisher: name: Zenodo
Year: 2022

description: leqnk; esa [ksyksa dks c<+kok nsus dk VkVk LVhy dk ç;kl blds laLFkkid ds vkn'kks± vkSj n'kZu ls çsj.kk ysrk gSA te'ksnth VkVk [ksyksa ds 'kkSdhu Fks vkSj mUgksaus [ksyksa dks c<+kok nsus dk dksÃ ekSdk ugÈ NksM+kA ukxiqj esa ,Eçsl fey ds laLFkkid ds :i esa] ftls 1874 dh 'kq#vkr esa LFkkfir fd;k x;k Fkk] mUgksaus fey ds deZpkfj;ksa ds chp [ksy dh odkyr djus ds mik; fd,A Þ[ksy dks ukxfjd thou dk fgLlk cuk fn;k x;k gSA pkj O;k;ke'kkyk iq#"kksa vkSj yM+dksa dks fofHkUu vH;klksa esa 'kkfey gksus dk i;kZIr volj nsrh gSa( muds ikl [kqyh gok esa dq'rh çfr;ksfxrk,a gksrh gSa] vkSj xÆe;ksa dh 'kke dks os QqVc‚y] Vsful vkSj fofHkUu Hkkjrh; [ksy ldrs gSaA te'ksnth [ksy ds çfr mRlkg us mUgsa 1902 esa te'ksniqj 'kgj dh LFkkiuk ds le; vius csVs] nksjkc VkVk dks fy[kus ds fy, çsfjr fd;kÞ QqVc‚y] g‚dh vkSj ikdks± ds fy, cM+s {ks= vkjf{kr djsaAÞ VkVk LVhy ds laLFkkid lnL; lj nksjkc VkVk Hkh ,d mRlkgh f[kykM+h FksA ,d ,FkyhV gksus ds ukrs] mUgksaus dSfEczt foÜofo|ky; ls Lukrd dh i<+kÃ iwjh djus ds ckn 1919 esa Hkkjr ykSVus ij vksyafid vkanksyu 'kq: fd;kA mUgksaus iwjs ns'k esa [ksyksa ds çpkj esa lfØ; Hkkx fy;kA nksjkc VkVk us o"kZ 1920 esa ,aVoiZ vksyafid ds fy, pkj ,FkyhVksa vkSj nks igyokuksa dk p;u fd;k vkSj mudh ;k=k dk foÙk iks"k.k Lo;a fd;kA og varjkZ"Vªh; vksyafid lfefr esa Hkkjr ds fy, ,d LFkku gkfly djus esa lQy jgs] ftlds dkj.k 1928 esa ,ELVMZe esa Hkkjr dh igyh vksyafid g‚dh thr gqÃA bafM;u ,Dlçsl] Dyc dk ftØ djrs gq,] 1988 ds jhesd esa] Þvrhr dh ?kVuk,a egku jgh gSa] vkt ds dk;Z iwjs gq, gSa] vkSj Hkfo"; vkSj Hkh vfèkd xqykch fn[krk gSÞA blh lqjkx ds ekè;e ls VkVk LVhy us viuk dk;ZØe 'kq: fd;k FkkA Hkkjr esa [ksyksa ds çksRlkfgr vkSj fodflr djuk gksxkA çkjafHkd o"kks± esa VkVk LVhy dk VkVk LiksV~lZ Dyc dks ekfld vuqnku VkVk lal ls 240 #i;s esa ls 50 #i;s FkkA2 [ksyksa esa VkVk LVhy ds fuos'k dk nk;jk dsoy blds deZpkfj;ksa rd gh lhfer ugÈ gS] cfYd blesa cM+s iSekus ij vusd leqnk; Hkh 'kkfey gSA thou ds lHkh {ks=ksa ds çfrHkk'kkyh deZpkfj;ksa] çfrHkk'kkyh ;qokvksa vkSj [ksy ds çfr mRlkgh yksxksa dks is'ksoj dksÇpx dk ykHk mBkus dk volj feyrk gS] vkSj [ksy ds vius vuq'kklu esa jk"Vªh; vkSj varjkZ"Vªh; Lrj ij çfrLièkkZ djus esa enn djus ds fy, lqfoèkk,a feyrh gSaA ,slk blfy, gS D;ksafd VkVk LVhy dk tksj u dsoy laxBu ds Hkhrj cfYd vklikl ds {ks=ksa esa Hkh [ksyksa dks c<+kok nsus ij gSA ;g bu {ks=ksa ls miyCèk çfrHkkvksa dk nksgu djus ds mís'; ls fd;k tkrk gS] rkfd mUgsa loZJs"B [ksy lkexzh ds :i esa fodflr djus ds fy, rS;kj fd;k tk ldsA bl lacaèk esa VkVk LVhy ds [ksy vkSj dY;k.k foHkkx dks fiNys dqN o"kks± esa mYys[kuh; lQyrk feyh gSA dkQh mfpr :i ls foHkkx dk vkn'kZ okD; i<+rk gSA
End-stage renal disease in Canada: prevalence projections to 2005
Creators: name: The University of North Carolina at Chapel Hill University Libraries
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 1999

description: BACKGROUND: The incidence and prevalence of end-stage renal disease (ESRD) have increased greatly in Canada over the last 2 decades. Because of the high cost of therapy, predicting numbers of patients who will require dialysis and transplantation is necessary for nephrologists and health care planners. METHODS: The authors projected ESRD incidence rates and therapy-specific prevalence by province to the year 2005 using 1981-1996 data obtained from the Canadian Organ Replacement Register. The model incorporated Poisson regression to project incidence rates, and a Markov model for patient follow-up. RESULTS: Continued large increases in ESRD incidence and prevalence were projected, particularly among people with diabetes mellitus. As of Dec. 31, 1996, there were 17,807 patients receiving renal replacement therapy in Canada. This number was projected to climb to 32,952 by the end of 2005, for a relative increase of 85% and a mean annual increase of 5.8%. The increased prevalence was projected to be greatest for peritoneal dialysis (6.0% annually), followed by hemodialysis (5.9%) and functioning kidney transplant (5.7%). The projected annual increases in prevalence by province ranged from 4.4%, in Saskatchewan, to 7.5%, in Alberta. INTERPRETATION: The projected increases are plausible when one considers that the incidence of ESRD per million population in the United States and other countries far exceeds that in Canada. The authors predict a continued and increasing short-fall in resources to accommodate the expected increased in ESRD prevalence.
Neutrino mass mechanisms in 3-3-1 models: A short review
Creators: name: Pires, C. A. de S.
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: In this paper we review some mechanisms that provide light neutrinos in the framework of 3-3-1 gauge models without exotic leptons. In regard to the minimal 3-3-1 model, we call the attention to the fact that the perturbative regime of the model goes until 5 TeV. This requires alternative mechanisms in order to generate light neutrinos. In this review we discuss two mechanisms capable of generating light neutrinos in the framework of the minimal 3-3-1 model. In regard to the 3-3-1 model with right-handed neutrinos, we call the attention to the fact that in it mechanisms that generate light left-handed neutrinos also generate light right-handed neutrinos. Finally, we call the attention to the fact that the 3-3-1 model with right-handed neutrinos accommodate naturally the inverse seesaw mechanism.
description: Final version with corrections on the tex and references updated. Published in the Physics International 2015. arXiv admin note: text overlap with arXiv:0903.0370
The US health care system: On a road to nowhere?
Creators: name: The University of North Carolina at Chapel Hill University Libraries
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2002

description: THIS ARTICLE REVIEWS THE CURRENT STATE AND FUTURE PROSPECTS of the health care system in the United States. The 1990s were a decade of reform and change in US medical care, with the debate over the Clinton plan for universal insurance and, after its defeat, the spread of managed care. In particular, managed care had a profound impact on the delivery of medical services, transforming traditional insurance arrangements. However, after all of the changes, the United States appears to be no closer to solving the problems that have characterized its health care system for the past 3 decades. Over 40 million Americans lack health insurance, universal coverage is nowhere in sight, and medical care costs are rising again after a period of moderation. It is doubtful that incremental health reforms will significantly ameliorate these problems.
Surgery for small asymptomatic abdominal aortic aneurysms
Creators: name: Filardo, Giovanni
name: Powell, Janet T
name: Ballard, David J
name: Martinez, Melissa Ashley-Marie
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2012

description: An abdominal aortic aneurysm (AAA) is an abnormal ballooning of the major abdominal artery. Some AAAs present as emergencies and require surgery; others remain asymptomatic. Treatment of asymptomatic AAAs depends on many factors but an important one is size of the aneurysm, as risk of rupture increases with aneurysm size. Large asymptomatic AAAs (> 5.5 cm in diameter) are usually operated on; very small AAAs (< 4.0 cm diameter) are monitored with ultrasonography. The optimal timing of surgery would benefit from further evidence.
Wnt Signaling from Development to Disease: Insights from Model Systems
Creators: name: Cadigan, Ken M.
name: Peifer, Mark
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2009

description: One of the early surprises in the study of cell adhesion was the discovery that β-catenin plays dual roles, serving as an essential component of cadherin-based cell–cell adherens junctions and also serving as the key regulated effector of the Wnt signaling pathway. Here, we review our current model of Wnt signaling and discuss how recent work using model organisms has advanced our understanding of the roles Wnt signaling plays in both normal development and in disease. These data help flesh out the mechanisms of signaling from the membrane to the nucleus, revealing new protein players and providing novel information about known components of the pathway.
Large values of newforms on GL(2) with highly ramified central character
Creators: name: Saha, Abhishek
Publisher: name: arXiv
Year: 2014
Subjects: subject: Number Theory (math.NT)
subject: FOS: Mathematics

description: We give a lower bound for the sup-norm of an $L^2$-normalized newform in an irreducible, unitary, cuspidal representation $π$ of $GL_2$ over a number field. When the central character of $π$ is sufficiently ramified, this bound improves upon the trivial bound by a positive power of $N$ where $N$ is the norm of the conductor of $π$. This generalizes a result of Templier, who dealt with the special case when the conductor of the central character equals the conductor of the representation. We also make a conjecture about the true size of the sup-norm in the $N$-aspect that takes into account this central character phenomenon. Our results depend upon some explicit formulas and bounds for the Whittaker newvector over a non-archimedean local field, which may be of independent interest.
description: Final version; to appear in IMRN
Hippocampal Subfield and Whole-Brain Activity During Mnemonic Discrimination Across the Adult Lifespan
Creators: name: Seo, Min Sung
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2023

description: Mnemonic discrimination, the ability to distinguish between existing representations and similar new inputs, is suggested to decline with age. Prior studies have associated this age-dependent deficit with age-related changes in the hippocampus, but little is known about the contributions of other cortical brain regions related to episodic memory. Moreover, while past studies examined mnemonic discrimination processes in younger and older adults, middle-aged adults are critically understudied. The current study employed a novel MRI technique enabling whole-brain coverage and isolation of hippocampal subfields at the same time, to examine how neural activity during mnemonic discrimination differs across the lifespan, by testing a sample of individuals ages 18-85. Successful mnemonic discrimination was associated with brain activity in several cortical areas but not in hippocampal subfields, and brain activity did not differ by age. These findings suggest that mnemonic discrimination involves cortical regions, but further research is needed to identify any age-related differences.