cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Conformally flat FRW metrics
Creators: name: Iihoshi, Masao
name: Ketov, Sergei V.
name: Morishita, Atsushi
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We find a new family of non-separable coordinate transformations bringing the FRW metrics into the manifestly conformally flat form. Our results are simple and complete, while our derivation is quite explicit. We also calculate all the FRW curvatures, including the Weyl tensor.
description: 19 pages; LaTeX; no figures; misprints corrected, a few references and short notes added
Radio Constraints on Activity in Young Brown Dwarfs
Creators: name: Osten, R. A.
name: Jayawardhana, R.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We report on searches for radio emission from three of the nearest known young brown dwarfs using the Very Large Array. We have obtained sensitive upper limits on 3.6cm emission from 2MASSW J1207334-393254, TWA~5B and SSSPM J1102-3431, all of which are likely members of the $\sim$8-Myr-old TW Hydrae association. We derive constraints on the magnetic field strength and the number density of accelerated electrons, under the assumption that young brown dwarf atmospheres are able to produce gyrosynchrotron emission, as seems to be indicated in older brown dwarfs. For the young brown dwarf TWA~5B, the ratio of its detected X-ray luminosity to the upper limit on radio luminosity places it within the expected range for young stars and older, active stars. Thus, its behavior is anomalous compared to older brown dwarfs, in which radio luminosity is substantially enhanced over the expected relationship. Our observations deepen the conundrum of magnetic activity in brown dwarfs, and suggest that a factor other than age is more important for determining radio emission in cool substellar objects.
description: accepted, ApJL replaced earlier version: typo in astro-ph author field
Viral load outcomes after art initiation among women in a PMTCT B+ programme in Zimbabwe
Creators: name: H Bygrave
name: S Simons
name: C Metcalf
name: T Bonyo
name: G Chenjerai
Publisher: name: F1000Research
Year: 2015

description: The WHO 2013 guidelines recommend that all HIV-infected pregnant and breastfeeding women take Antiretroviral Therapy (ART) to prevent mother-to-child transmission (PMTCT). A high viral load (VL) (>1000 copies/ml) during pregnancy or breast-feeding is associated with higher rates of MTCT. In Zimbabwe, routine VL testing was introduced in MSF-supported HIV programmes in 2012, with patients tested at three and twelve months after starting ART, and then annually. This analysis aimed to determine the proportion of PMTCT women with a VL >1000 copies /ml, associated risk factors, and to compare the findings to women outside the PMTCT programmeA significant number of pregnant and breastfeeding women failed to suppress their VL within 3 months of starting ART, putting their infants at ongoing risk of HIV infection. Increased support is needed for counselling at ART initiation and during the first months on ART, particularly among younger women. In addition, guidance is urgently needed on the optimal timing of VL testing among women in PMTCT programmes.
Chronic non-communicable disease care in an atypical refugee setting: Syrian refugees in Lebanon
Creators: name: Boulle, Philippa
name: Fernandez, Gustavo
name: Lightowler, Maria
Publisher: name: F1000Research
Year: 2015

description: There is limited MSF experience in non-communicable disease (NCD) management in an open refugee setting within a middle-income context. Therefore our objectives are to understand the feasibility of a model of care utilising task-shifting, simplified protocols, limited use of investigations. In addition we will investigate the feasibility/impact of home glucose monitoring and the reasons for defaulting.Some of our conclusions point towards the need for simplified protocols and expert support enable task-shifting and GP-based model of care. An appointment system, dedicated patient files, defaulter tracing and patient circuit would allow improved patient follow-up.
Room-Temperature Quantum Hall Effect in Graphene
Creators: name: Novoselov, K. S.
name: Jiang, Z.
name: Zhang, Y.
name: Morozov, S. V.
name: Stormer, H. L.
name: Zeitler, U.
name: Maan, J. C.
name: Boebinger, G. S.
name: Kim, P.
name: Geim, A. K.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The quantum Hall effect (QHE), one example of a quantum phenomenon that occur on a truly macroscopic scale, has been attracting intense interest since its discovery in 1980 and has helped elucidate many important aspects of quantum physics. It has also led to the establishment of a new metrological standard, the resistance quantum. Disappointingly, however, the QHE could only have been observed at liquid-helium temperatures. Here, we show that in graphene - a single atomic layer of carbon - the QHE can reliably be measured even at room temperature, which is not only surprising and inspirational but also promises QHE resistance standards becoming available to a broader community, outside a few national institutions.
description: Published in Science online 15 February 2007
Learning & Development in Afghanistan: an online tool linking staff performance to operations
Creators: name: Gompel, Lieke Van
name: Sikora, Thierry
Publisher: name: F1000Research
Year: 2015

description: The objective of learning and development (L&D) is to increase the competencies of staff, contributing to a higher level of care, and increasing sustainability regardless of staff turnover.The tool is currently being piloted with about 150 staff. Possible future functionalities include video-recorded trainings (MOOC), improving ease of sharing of tools and trainings between other MSF projects, and an online forum for distant support.
It is not just about giving the drugs: Medication Adherence Clubs (MACs) for HIV and Non-Communicable Disease (NCD) patients in an informal setting in Kibera, Kenya
Creators: name: Venables, Emily
name: Khabala, Kelly
name: Edwards, Jeffrey
name: Ritter, Helga
name: Reid, Tony
name: Kibachio, Joseph
name: Etienne, William
name: Saar Baert
name: Bygrave, Helen
Publisher: name: F1000Research
Year: 2015

description: 13 million people are currently on lifelong antiretroviral therapy (ART). Adaptation of ART delivery models could lead to treatment of larger numbers of stable patients. These adaptations include longer drug refills and collecting drugs in clinic-based clubs or the community.This is an innovative model, acceptable to patients and health-care workers. MACs provide large numbers of stable HIV & NCD patients with drug refills: retention will need to be assessed next. MACs also provide peer support, although disclosure is a challenge for HIV positive patients. Increased promotion of drug refill strategies is required to enable improved patient choice in accessing chronic medication.
A State-Based Regression Formulation for Domains with Sensing Actions
 and Incomplete Information
Creators: name: Tuan, Le-Chi
name: Baral, Chitta
name: Son, Tran Cao
Publisher: name: arXiv
Year: 2006
Subjects: subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences
subject: I.2.4; I.2.8

description: We present a state-based regression function for planning domains where an agent does not have complete information and may have sensing actions. We consider binary domains and employ a three-valued characterization of domains with sensing actions to define the regression function. We prove the soundness and completeness of our regression formulation with respect to the definition of progression. More specifically, we show that (i) a plan obtained through regression for a planning problem is indeed a progression solution of that planning problem, and that (ii) for each plan found through progression, using regression one obtains that plan or an equivalent one.
description: 34 pages, 7 Figures
Bifurcation of a square plate twisted by corner forces
Creators: name: Miya, Raymon
Publisher: name: University of British Columbia
Year: 2009

description: A square plate twisted by corner forces is described by classical linear theory as a saddle surface. In an experiment, as the plate deforms to any noticeable deflection, it appears not as a saddle surface, but as a cylindrical surface. The transformation in mode shapes presents problems in determining material behaviour by shear in a plate twisting experiment. The two mode shapes can be described by either displacement or curvature of the surface. The purpose of this work is to investigate the buckling of a square plate twisted by corner forces by determining the bifurcation point and comparing the present FEA work with the experimental results of Howell and other results found in literature. The problem is examined using nonlinear finite element buckling analysis. The bifurcation point is determined by load-displacement plots. The critical value of Gaussian curvature at the centre of the plate is determined by the Southwell plot method. The critical value of Gaussian curvature is found to occur before the bifurcation point. Gaussian curvature is found to vary by an order of magnitude over the plate at bifurcation.
Transiting exoplanets from the CoRoT space mission III. The spectroscopic transit of CoRoT-Exo-2b with SOPHIE and HARPS
Creators: name: Bouchy, F.
name: Queloz, D.
name: Deleuil, M.
name: Loeillet, B.
name: Hatzes, A. P.
name: Aigrain, S.
name: Alonso, R.
name: Auvergne, M.
name: Baglin, A.
name: Barge, P.
name: Benz, W.
name: Bordé, P.
name: Deeg, H. J.
name: De la Reza, R.
name: Dvorak, R.
name: Erikson, A.
name: Fridlund, M.
name: Gondoin, P.
name: Guillot, T.
name: Hébrard, G.
name: Jorda, L.
name: Lammer, H.
name: Léger, A.
name: Llebaria, A.
name: Magain, P.
name: Mayor, M.
name: Moutou, C.
name: Ollivier, M.
name: Pätzold, M.
name: Pepe, F.
name: Pont, F.
name: Rauer, H.
name: Rouan, D.
name: Schneider, J.
name: Triaud, A. H. M. J.
name: Udry, S.
name: Wuchterl, G.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We report on the spectroscopic transit of the massive hot-Jupiter CoRoT-Exo-2b observed with the high-precision spectrographs SOPHIE and HARPS. By modeling the radial velocity anomaly occurring during the transit due to the Rossiter-McLaughlin (RM) effect, we determine the sky-projected angle between the stellar spin and the planetary orbital axis to be close to zero lambda=7.2+-4.5 deg, and we secure the planetary nature of CoRoT-Exo-2b. We discuss the influence of the stellar activity on the RM modeling. Spectral analysis of the parent star from HARPS spectra are presented.
description: A&A Letters (in press), 5 pages, 2 figures
การพัฒนาคุณลักษณะที่พึงประสงค์ของนักศึกษาครูสาขาการศึกษาปฐมวัย มหาวิทยาลัยราชภัฏนครราชสีมาผ่านกิจกรรมนิทานและหุ่นสำหรับเด็ก
Creators: name: ประมุข กอปรสิริพัฒน์
Publisher: name: คณะมนุษยศาสตร์และสังคมศาสตร์ มหาวิทยาลัยราชภัฏบุรีรัมย์
Year: 2556
Subjects: การพัฒนา, คุณลักษณะอันพึงประสงค์, หุ่นและนิทาน, เด็กปฐมวัย

description: 1, 11, รมยสาร
Phonon dispersion in graphene
Creators: name: Falkovsky, L. A.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: Taking into account the constraints imposed by the lattice symmetry, the phonon dispersion is calculated for graphene with interactions between the first and second nearest neighbors in the framework of the Born-von Karman model. Analytical expressions are obtained for the out-of-plane (bending) modes determined only by two force constants as well as for the in-plane modes with four force constants. Values of the force constants are found in fitting to elastic constants and Raman frequencies observed in graphite.
description: 6 pages, 4 figures
Horizontal Position Reconstruction in PandaX-II
Creators: name: Zhang, Dan
name: Tan, Andi
name: Abdukerim, Abdusalam
name: Chen, Wei
name: Chen, Xun
name: Chen, Yunhua
name: Cheng, Chen
name: Cui, Xiangyi
name: Fan, Yingjie
name: Fang, Deqing
name: Fu, Changbo
name: Fu, Mengting
name: Geng, Lisheng
name: Giboni, Karl
name: Gu, Linhui
name: Guo, Xuyuan
name: Han, Ke
name: He, Changda
name: He, Shengming
name: Huang, Di
name: Huang, Yan
name: Huang, Yanlin
name: Huang, Zhou
name: Ji, Xiangdong
name: Ju, Yonglin
name: Li, Shuaijie
name: Lin, Qing
name: Liu, Huaxuan
name: Liu, Jianglai
name: Liu, Liqiang
name: Lu, Xiaoying
name: Ma, Wenbo
name: Ma, Yugang
name: Mao, Yajun
name: Meng, Yue
name: Namwongsa, Parinya
name: Ni, Kaixiang
name: Ning, Jinhua
name: Ning, Xuyang
name: Ren, Xiangxiang
name: Shaheed, Nasir
name: Shang, Changsong
name: Shen, Guofang
name: Si, Lin
name: Wang, Anqing
name: Wang, Hongwei
name: Wang, Meng
name: Wang, Qiuhong
name: Wang, Siguang
name: Wang, Wei
name: Wang, Xiuli
name: Wang, Zhou
name: Wu, Mengmeng
name: Wu, Shiyong
name: Wu, Weihao
name: Xia, Jingkai
name: Xiao, Mengjiao
name: Xie, Pengwei
name: Xiao, Xiang
name: Yan, Binbin
name: Yang, Jijun
name: Yang, Yong
name: Yu, Chunxu
name: Yuan, Jumin
name: Yuan, Ying
name: Zeng, Xinning
name: Zhang, Tao
name: Zhao, Li
name: Zheng, Qibin
name: Zhou, Jifang
name: Zhou, Ning
name: Zhou, Xiaopeng
Publisher: name: arXiv
Year: 2021
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: Dual-phase noble-gas time projection chambers (TPCs) have improved the sensitivities for dark matter direct search in past decades. The capability of TPCs to reconstruct 3-D vertexes of keV scale recoilings is one of the most advantageous features. In this work, we develop two horizontal position reconstruction algorithms for the PandaX-II dark matter search experiment using the dual-phase liquid xenon TPC. Both algorithms are optimized by the $^{83m}$Kr calibration events and use photon distribution of ionization signals among photomultiplier tubes to infer the positions. According to the events coming from the gate electrode, the uncertainties in the horizontal positions are 3.4 mm (3.9 mm) in the analytical (simulation-based) algorithm for an ionization signal with several thousand photon electrons in the center of the TPC
description: 18 pages, 11 figures
การพัฒนาหลักสูตรเสริมสร้างจิตสาธารณะของนักเรียนชั้นมัธยมศึกษาตอนต้น
Creators: name: ปฏิวัติ เทียบอุ่น
Publisher: name: คณะมนุษยศาสตร์และสังคมศาสตร์ มหาวิทยาลัยราชภัฏบุรีรัมย์
Year: 2556
Subjects: การพัฒนา / หลักสูตรเสริม / จิตสาธารณะ

description: 1, 11, รมยสาร
ผลการใช้จิตตปัญญาศึกษาเพื่อเสริมสร้างคุณลักษณะความเป็นครูสำหรับนักศึกษาคณะครุศาสตร์ มหาวิทยาลัยราชภัฏ
Creators: name: วันทนีย์ นามสวัสดิ์
Publisher: name: คณะมนุษยศาสตร์และสังคมศาสตร์ มหาวิทยาลัยราชภัฏบุรีรัมย์
Year: 2556
Subjects: จิตตปัญญาศึกษา, ชุดกิจกรรม, คุณลักษณะความเป็นครู

description: 1, 11, รมยสาร
Knowledge based dynamic restructuring of flexible production systems
Creators: name: Gu, Jianhua
Publisher: name: University of British Columbia
Year: 2009

description: This thesis addresses high level automation in flexible production systems (FPS). In a flexible production system, for example in a dedicated FPS for fish processing, the process components are typically organized as distinct workcells where each workcell is responsible for a special class of production activity. Changes in production demand, variation in raw material supply, and malfunction or failure of workcell components can change the workload on some components in the workcell. A technique that is termed dynamic restructuring, which enables an FPS to change its configuration automatically to suit new situations, thereby achieving a near-optimal load distribution among system components is developed in the thesis. Characteristics of the restructuring problem are known to be fuzzy (both restructuring goal and FPS status), complex, and non-analytic. A knowledge-based method is employed for solving this problem rather than the conventional mathematical methods. Different types of knowledge sources are organized in a three-level hierarchy of decision making: • The first (highest) level determines whether there should be a restructuring oper-ation according to the current FPS status. • The second level determines a restructuring method, in which, due to the fuzziness of the restructuring goal, general heuristics are used. • The third level selects an optimal action based on the current situation, employing fuzzy logic to handle system uncertainty. Various approaches of knowledge representation and reasoning are used, as appro-priate in different levels of the hierarchy. A blackboard architecture is implemented to coordinate associated knowledge sources, which makes the entire system easily ex- pandable. Heuristics are organized in the order of their priorities, in the planning of restructuring actions. Techniques of fuzzy associative memory are developed to evaluate a set of possible restructuring actions from which a decision maker could pick an optimal one. Therefore, the system is intelligent in the sense that the decision maker always selects a proper action based on the current system status. The FPS restructuring system is implemented in Prolog. The approach is applied to an automated fish processing plant, in computer simulation. Several special cases are studied through simulation experiments, to demonstrate the practical use of the approach.
สรรพนามบุรุษที่ 2 ในภาษาไทย : การใช้ การเกิด การคงอยู่ และการสูญ
Creators: name: วรวรรธน์ ศรียาภัย
Publisher: name: คณะมนุษยศาสตร์และสังคมศาสตร์ มหาวิทยาลัยราชภัฏบุรีรัมย์
Year: 2556
Subjects: สรรพนาม, วรรณคดีไทย

description: 1, 11, รมยสาร
ความรับผิดของแพทย์ที่ไม่เป็นธรรมกับผู้ป่วยตามร่างพระราชบัญญัติความรับผิดของแพทย์และวิธีพิจารณาความสำหรับผู้ประกอบวิชาชีพด้านสุขภาพ
Creators: name: กาญจนพิฬดา ศักดิ์ศิริญดากุล
Publisher: name: คณะมนุษยศาสตร์และสังคมศาสตร์ มหาวิทยาลัยราชภัฏบุรีรัมย์
Year: 2556
Subjects: ผู้ประกอบวิชาชีพเวชกรรม (แพทย์), ความรับผิดทางอาญา, การกระทำโดยประมาทเลินเล่อ

description: 1, 11, รมยสาร
Data capacity scaling of a distributed Rydberg atomic receiver array
Creators: name: Otto, J. Susanne
name: Hunter, Marisol K.
name: Kjærgaard, Niels
name: Deb, Amita B.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: Applied Physics (physics.app-ph)
subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: The data transfer capacity of a communication channel is limited by the Shannon-Hartley theorem and scales as $\text{log}_2(1 + \text{SNR})$ for a single channel with the power signal-to-noise ratio (SNR). We implement an array of atom-optical receivers in a single-input-multi-output (SIMO) configuration by using spatially distributed probe light beams. The data capacity of the distributed receiver configuration is observed to scale as $\text{log}_2(1 + N\times\text{SNR})$ for an array consisting of $N$ receivers. Our result is independent on the modulation frequency, and we show that such enhancement of the bandwidth cannot be obtained by a single receiver with a similar level of combined optical power. We investigate both theoretically and experimentally the origins of the single channel capacity limit for our implementation.
Energy dependent ~100 μs time lags as observational evidence of Comptonization effects in the neutron star plasma environment
Creators: name: Falanga, Maurizio
name: Titarchuk, Lev
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present a Comptonization model for the observed properties of the energy-dependent soft/hard time lags and pulsed fraction (amplitude) associated with the pulsed emission of a neutron star (NS). We account for the soft lags by downscattering of hard X-ray photons in the relatively cold plasma of the disk or NS surface. A fraction of the soft X-ray photons coming from the disk or NS surface upscatter off hot electrons in the accretion column. This effect leads to hard lags as a result of thermal Comptonization of the soft photons. This model reproduces the observed soft and hard lags due to the down- and upscattered radiation as a function of the electron number densities of the reflector, n_{e}^{ref}, and the accretion column, n_{e}^{hot}. In the case of the accretion-powered millisecond pulsars IGR J00291+5934, XTE J1751-305, and SAX J1808.4-3658, the observed time lags agree well with the model. Soft lags are observed only if n_e^{ref} << n_e^{hot}. Scattering of the pulsed emission in the NS environment may account for the observed time lags as a non-monotonic function of energy. The time lag measurements can be used as a probe of the innermost parts of the NS and accretion disk. We determine the upper and lower limits of the density variation in this region using the observed time lags. The observed energy-dependent pulsed amplitude allows us to infer a variation of the Thomson optical depth of the Compton cloud in which the accretion column is embedded.
description: 4 pages, 3 figures, ApJ accepted
รังสรรค์เพลงพื้นบ้านชุมชนนครชุมจังหวัดกำแพงเพชรสู่สากล
Creators: name: กวี ครองแก้ว
Publisher: name: คณะมนุษยศาสตร์และสังคมศาสตร์ มหาวิทยาลัยราชภัฏบุรีรัมย์
Year: 2556
Subjects: รังสรรค์เพลงพื้นบ้าน, ชุมชนนครชุม

description: 1, 11, รมยสาร
Characterization of Dusty Debris Disks: the IRAS and Hipparcos Catalogs
Creators: name: Rhee, Joseph H.
name: Song, Inseok
name: Zuckerman, B.
name: McElwain, Michael
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Dusty debris disks around main-sequence stars are signposts for the existence of planetesimals and exoplanets. From cross-correlating \hip stars with the \iras catalogs, we identify 146 stars within 120 pc of Earth that show excess emission at 60 $\micron$. This search took special precautions to avoid false positives. Our sample is reasonably well distributed from late B to early K-type stars, but it contains very few later type stars. Even though \iras flew more than 20 years ago and many astronomers have cross-correlated its catalogs with stellar catalogs, we were still able to newly identify debris disks at as many as 33 main-sequence stars; of these, 32 are within 100 pc of Earth. The power of an all-sky survey satellite like \iras is evident when comparing our 33 new debris disks with the total of only 22 dusty debris disk stars detected first with the more sensitive, but pointed, satellite \iso. Our investigation focuses on the mass, dimensions, and evolution of dusty debris disks.
description: Changes made to table, figures and conclusion (v4); correction made to Equation 9 (v3); added a paragraph and a reference to Section 3 (v2); ApJ in press
Additional file 2 of Surgical site infection after intracorporeal anastomosis for left-sided colon cancer: study protocol for a non-inferiority multicenter randomized controlled trial (STARS)
Creators: name: He, Liang
name: Li, Meng
name: Zhang, Jia-xin
name: Tong, Wei-hua
name: Chen, Yan
name: Wang, Quan
Publisher: name: figshare
Year: 2022
Subjects: subject: Medicine
subject: Microbiology
subject: FOS: Biological sciences
subject: Biotechnology
subject: Cancer
subject: Science Policy
subject: Mental Health
subject: Infectious Diseases
subject: FOS: Health sciences

description: Additional file 2. CDC guidelines.
การพัฒนาหลักสูตรฝึกอบรมเสริมสมรรถนะการวิจัยเพื่อพัฒนางานประจำ สำหรับบุคลากรสายสนับสนุนในมหาวิทยาลัยราชภัฏบุรีรัมย์
Creators: name: ฐิตาภรณ์ เวียงวิเศษ
Publisher: name: คณะมนุษยศาสตร์และสังคมศาสตร์ มหาวิทยาลัยราชภัฏบุรีรัมย์
Year: 2556
Subjects: การพัฒนาหลักสูตร สมรรถนะการวิจัย บุคลากรสายสนับสนุน

description: 1, 11, รมยสาร
Rechtliche und monetäre Bedeutung von dinglichen (gesetzlichen) Vorkaufsrechten an landwirtschaftlichen Nutzflächen aus Sicht von berechtigten Landwirten
Creators: name: Moog, Kristina
name: Bahrs, Enno
Publisher: name: Berichte über Landwirtschaft - Zeitschrift für Agrarpolitik und Landwirtschaft
Year: 2021

description: Die Konkurrenz um landwirtschaftliche Nutzflächen hat sich in Deutschland in den letzten Jahren verschärft. Für Landwirte wird es aufgrund stark gestiegener Kaufpreise bei gleichzeitiger Konkurrenz durch außerlandwirtschaftliche Nachfrager zunehmend herausfordernd, landwirtschaftliche Grundstücke zu erwerben. Zwar soll das Vorkaufsrecht nach Reichssiedlungsgesetz in Verbindung mit dem Grundstückverkehrsgesetz Landwirte beim Flächenerwerb privilegieren, jedoch ist diese Gesetzgebung nicht (mehr) ausreichend zielführend. Aus diesem Grund wird in den letzten Jahren häufig über eine Novellierung des Grundstücksverkehrs- und Siedlungsrechts auf Länderebene diskutiert. Im vorliegenden Beitrag werden bereits bestehende Gesetze sowie Gesetzesentwürfe auf nationaler und europäischer Ebene im Kontext von Vorkaufrechten näher betrachtet und hinsichtlich möglicher Auswirkungen auf den landwirtschaftlichen Bodenmarkt evaluiert. Dabei wird deutlich, dass Vorkaufsrechte ein sinnvolles Instrument zur Privilegierung von Landwirten sein können. Jedoch muss genau geprüft werden, welche Auswirkungen Vorkaufsrechte auf den Bodenmarkt haben. Sonst besteht die Gefahr, unerwünschte Effekte zu erzielen. Ergänzend dazu werden im Rahmen einer Umfrage in Verbindung mit einem Discrete Choice Experiment der Nutzen von sowie die Zahlungsbereitschaft für Vorkaufsrechte unterschiedlicher Ausgestaltung aus Sicht berechtigter Landwirte ermittelt. Die Ergebnisse zeigen, dass Landwirte Vorkaufsrechten einen positiven Nutzen beimessen, der von den jeweiligen Eigenschaften des Vorkaufsrechts beeinflusst werden und dass Landwirte für die Eintragung eines Vorkaufsrechts, dessen Umsetzung offen ist, in Abhängigkeit seiner Eigenschaften eine Zahlungsbereitschaft haben.
description: Berichte über Landwirtschaft - Zeitschrift für Agrarpolitik und Landwirtschaft, Aktuelle Beiträge
On the existence of some ARCH($\infty$) processes
Creators: name: Douc, Randal
name: Roueff, François
name: Soulier, Philippe
Publisher: name: arXiv
Year: 2006
Subjects: subject: Statistics Theory (math.ST)
subject: Probability (math.PR)
subject: FOS: Mathematics
subject: 60G10 62M10

description: A new sufficient condition for the existence of a stationary causal solution of an ARCH($\infty$) equation is provided. This condition allows to consider polynomially decaying coefficients, so that it can be applied to the so-called FIGARCH processes, whose existence is thus proved.
Constraining primordial magnetic fields with CMB polarization experiments
Creators: name: Kristiansen, Jostein R.
name: Ferreira, Pedro G.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We calculate the effect that a primordial homogeneous magnetic field, $\B_0$, will have on the different CMB power spectra due to Faraday rotation. Concentrating on the $TB$, $EB$ and $BB$ correlations, we forecast the ability for future CMB polarization experiments to constrain $\B_0$. Our results depend on how well the foregrounds can be subtracted from the CMB maps, but we find a predicted error between $σ_{\B_0} = 4 \times 10^{-11}$Gauss (for the QUIET experiment with foregrounds perfectly subtracted) and $3 \times 10^{-10}$Gauss (with the Clover experiment with no foreground subtraction). These constraints are two orders of magnitudes better than the present limits on $\B_0$.
description: 9 pages, 7 figures. Extended results section. Typos corrected. Corresponds to version accepted for publication in Phys. Rev. D
Spin-valley qubits in gated quantum dots in a single layer of transition metal dichalcogenides
Creators: name: Altıntaş, Abdulmenaf
name: Bieniek, Maciej
name: Dusko, Amintor
name: Korkusiński, Marek
name: Pawłowski, Jarosław
name: Hawrylak, Paweł
Publisher: name: arXiv
Year: 2021
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We develop a microscopic and atomistic theory of electron spin-based qubits in gated quantum dots in a single layer of transition metal dichalcogenides. The qubits are identified with two degenerate locked spin and valley states in a gated quantum dot. The two-qubit states are accurately described using a multi-million atom tight-binding model solved in wavevector space. The spin-valley locking and strong spin-orbit coupling result in two degenerate states, one of the qubit states being spin-down located at the $+K$ valley of the Brillouin zone, and the other state located at the $-K$ valley with spin up. We describe the qubit operations necessary to rotate the spin-valley qubit as a combination of the applied vertical electric field, enabling spin-orbit coupling in a single valley, with a lateral strongly localized valley-mixing gate.
supplementary figures and text from Scaling and responses of extreme hourly precipitation in three climate experiments with a convection-permitting model
Creators: name: Lenderink, Geert
name: Vries, Hylke De
name: Fowler, Hayley J.
name: Barbero, Renaud
name: Ulft, Bert Van
name: Meijgaard, Erik Van
Publisher: name: The Royal Society
Year: 2021
Subjects: subject: Atmospheric Sciences
subject: FOS: Earth and related environmental sciences

description: It is widely recognized that future rainfall extremes will intensify. This expectation is tied to the Clausius-Clapeyron (CC) relation, stating that the maximum water vapour content in the atmosphere increases by 6–7% per degree warming. Scaling rates for the dependency of hourly precipitation extremes on near-surface (dew point) temperature derived from day-to-day variability have been found to exceed this relation (super-CC). However, both the applicability of this approach in a long-term climate change context, and the physical realism of super-CC rates has been questioned. Here, we analyse three different climate change experiments with a convection-permitting model over Western Europe: simple uniform-warming, 11-year pseudo-global warming and 11-year global climate model driven. The uniform-warming experiment results in consistent increases to the intensity of hourly rainfall extremes of approximately 11% per degree for moderate to high extremes. The other two, more realistic, experiments show smaller increases—usually at or below the CC rate—for moderate extremes, mostly resulting from significant decreases to rainfall occurrence. However, changes to the most extreme events are broadly consistent with 1.5–2 times the CC rate (10–14% per degree), as predicted from the present-day scaling rate for the highest percentiles. This result has important implications for climate adaptation.This article is part of the discussion meeting issue ‘Intensification of short-duration rainfall extremes and implications for flash flood risks’.
Υδρομορφολογικά χαρακτηριστικά του ποταμού Τριπόταμου Ημαθίας, προβλήματα και προτάσεις μέτρων αποκατάστασης
Creators: name: Αθανασιάδου, Ελένη Αλέξανδρου
Publisher: name: Aristotle University of Thessaloniki
Year: 2018
Subjects: Υδρομορφολογία
Τριπόταμος Ημαθίας
Οδηγία 2000/60/Ε.Κ.
Hydromorphology
Tripotamos Imathias
Directive 2000/60/EC

description: Ο ποταμός Τριπόταμος αποτελεί τμήμα της υδρολογικής λεκάνης του Αλιάκμονα και βρίσκεται στην Κεντρική Μακεδονία, στο Νομό Ημαθίας. Από την κατασκευή της περιφερειακής τάφρου Τ66 το 1936 και μέχρι σήμερα, ο ποταμός Τριπόταμος εκβάλει σε αυτήν. Σκοπός της εργασίας ήταν να διερευνηθούν τα υδρομορφολογικά χαρακτηριστικά του ποταμού Τριπόταμου, όπως ορίζονται από την Οδηγία 2000/60/Ε.Κ. Ειδικότερα η εργασία στηρίχθηκε στο άρθρου 1.1.1 του παραρτήματος V, της οδηγίας 2000/60/Ε.Κ, στο οποίο προτείνονται συγκεκριμένοι υδρομορφολογικοί παράγοντες που υποστηρίζουν τα βιολογικά στοιχεία. Οι υδρομορφολογικές παράμετροι που μελετήθηκαν ήταν η σύνδεση με συστήματα υπόγειων υδάτων, η συνέχεια του ποταμού, η διακύμανση του βάθους και του πλάτους του ποταμού Τριπόταμου, η δομή και το υπόστρωμα του πυθμένα του ποταμού Τριπόταμου, η δομή της παρόχθιας ζώνης και η δυναμική του νερού. Η παροχή του νερού δεν μετρήθηκε, καθώς η μελέτη αυτής χρειάζεται μεγαλύτερη χρονοσειρά παρακολουθήσεων. Επιπλέον έγινε προσπάθεια αποτύπωσης των προβλημάτων που παρουσιάζονται κατά μήκος της κοίτης του Τριπόταμου από τις τροποποιήσεις που έχει υποστεί. Τέλος προτάθηκαν μέτρα αποκατάστασης, στα σημεία όπου οι τροποποιήσεις στον ποταμό δημιουργούν πρόβλημα στην οικολογική βιωσιμότητα του
description: Tripotamos River, in the prefecture of Imathia is located in Central Macedonia and is located within the Aliakmonas hydrological basin. Ever since the construction of the peripheral canal “66” in 1936, Tripotamos River flows into it. The object of this thesis was to investigate the hydromorphological characteristics of Tripotamos River, as defined in Directive 2000/60/EC, which suggests certain hydromorphological factors supporting biological elements. The hydromorphological parameters studied were the connection to underground water systems, the continuity of the river, its variations in depth and width, the structure and the substrate of its bed, the structure of the riverside and the dynamical characteristics of the water. The runoff was not measured, as it would necessitate a substantially larger time-series of observations. Additionally, an attempt was made to record the problems faced alongside the riverbed that stem from human interventions. Finally, a number of restoration measures were suggested for the locations, where the riverbed alterations have created problems with its overall ecological sustainability
Ανάπτυξη πρότυπου προγράμματος βιωματικής εκπαίδευσης μαθητών για χρήση δημόσιων συγκοινωνιών στο πλαίσιο της βιώσιμης αστικής κινητικότητας
Creators: name: Σκορδάς, Αθανάσιος Θεόδωρου
Publisher: name: Aristotle University of Thessaloniki
Year: 2018
Subjects: Βιώσιμη Αστική Κινητικότητα
Καμπάνια Ο.Α.Σ.Θ.
Οδική Ασφάλεια
Sustainable Urban Mobility
O.A.S.Th. Campaign
Road Safety for primary school students

description: Στα πλαίσια της παρούσας Διπλωματικής Εργασίας έγινε προσπάθεια να αναπτυχθεί ένα πρότυπο πρόγραμμα βιωματικής εκπαίδευσης μαθητών Δημοτικού για τη χρήση Δημόσιων Μέσων Μεταφοράς στο πλαίσιο της βιώσιμης αστικής κινητικότητας. Παρουσιάστηκε το υφιστάμενο εκπαιδευτικό πρόγραμμα του Οργανισμού Αστικών Συγκοινωνιών Θεσσαλονίκης (Ο.Α.Σ.Θ.), με την ιστορική αναδρομή του και τα έως σήμερα αποτελέσματά του καθώς και άλλα παραδείγματα καλής πρακτικής τόσο σε εθνικό όσο και σε διεθνές επίπεδο. Έγινε παράλληλα αναφορά στην έννοια της βιώσιμης αστικής κινητικότητας και της οδικής ασφάλειας καθώς και της βιωματικής εκπαίδευσης των μαθητών. Κατόπιν, συντάχθηκαν και διανεμήθηκαν ερωτηματολόγια για τους οδηγούς του Ο.Α.Σ.Θ. με θέμα την οδική ασφάλεια των μαθητών. Ομοίως, συντάχθηκαν και διανεμήθηκαν ερωτηματολόγια σχετικά με την καμπάνια του Ο.Α.Σ.Θ. προς τους συμμετέχοντες μαθητές στην καμπάνια αυτή κατά το προηγούμενο σχολικό έτος. Έγινε η σχετική στατιστική επεξεργασία των παραπάνω ερωτηματολογίων και παρουσιάστηκαν τα αποτελέσματα και τα συμπεράσματα από αυτήν. Τέλος, διατυπώθηκαν γενικά συμπεράσματα και προτάσεις για περαιτέρω έρευνα καθώς και βελτίωση και ανάπτυξη του υφιστάμενου εκπαιδευτικού προγράμματος του Ο.Α.Σ.Θ.
description: In this Master’s Thesis was made an attempt to develop an educational program for elementary students about the safe use of public transport, taking into consideration sustainable urban mobility. The existing training program of the Thessaloniki Urban Transport Organization (OASTh) was described with its historical background and its results so far as well as other examples of good practice both at national and international level. At the same time, reference was made to the concept of sustainable urban mobility and road safety as well as to the experiential education of students. Questionnaires about the road safety of students were prepared and distributed to the OASTh drivers. In addition, a questionnaire survey about the OASTh campaign has taken place for students who participated during the previous school year in the campaign. Finally, general conclusions and proposals for further research as well as improvement and development of the existing educational program of OASTh were formulated
Mixed modulus and anomaly mediation in light of the muon $g-2$ anomaly
Creators: name: Jeong, Kwang Sik
name: Kawamura, Junichiro
name: Park, Chan Beom
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The new measurement of the anomalous magnetic moment of muon at the Fermilab Muon $g-2$ experiment has strengthened the significance of the discrepancy between the standard model prediction and the experimental observation from the BNL measurement. If new physics responsible for the muon $g-2$ anomaly is supersymmetric, one should consider how to obtain light electroweakinos and sleptons in a systematic way. The gauge coupling unification allows a robust prediction of the gaugino masses, indicating that the electroweakinos can be much lighter than the gluino if anomaly-mediated supersymmetry breaking is sizable. As naturally leading to mixed modulus-anomaly mediation, the KKLT scenario is of particular interest and is found capable of explaining the muon $g-2$ anomaly in the parameter region where the lightest ordinary supersymmetric particle is a bino-like neutralino or slepton.
description: 1+29 pages, 5 figures, 1 table; references added, matches published version
Spiral stellar density waves and the flattening of abundance gradients in the warm gas component of spiral galaxies
Creators: name: Vorobyov, E. I.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Motivated by recent observations of plateaus and minima in the radial abundance distributions of heavy elements in the Milky Way and some other spiral galaxies, we propose a dynamical mechanism for the formation of such features around corotation. Our numerical simulations show that the non-axisymmetric gravitational field of spiral density waves generates cyclone and anticylone gas flows in the vicinity of corotation. The anticyclones flatten the pre-existing negative abundance gradients by exporting many more atoms of heavy elements outside corotation than importing inside it. This process is very efficient and forms plateaus of several kiloparsec in size around corotation after two revolution periods of a galaxy. The strength of anticyclones and, consequently, the sizes of plateaus depend on the pitch angle of spiral arms and are expected to increase along the Hubble sequence.
description: 10 pages, 12 figures, accepted for publication in MNRAS
New technology for an old disease: Unmanned Aerial Vehicles for tuberculosis sample transport in Papua New Guinea
Creators: name: Chikwanha, Isaac
Publisher: name: F1000Research
Year: 2015

description: We are investigating Tuberculosis as a burden on Papua New Guinea, as it is currently the third cause of morbidity and mortality and is showing poor program outcomes. An important aim is to discover how best to move Tuberculosis diagnostic samples from remote health centres to MSF laboratories in the shortest possible time. It is proposed that unmanned aerial vehicles (UAV) could be used to overcome the problems caused by lack of infrastructure.Matternet has had a positive outcome from the feasibility test, showing decent speeds and good acceptance from the population. However so far the travel distances are only short ranging and the process still requires human intervention to swap the batteries over.
The Niger refresh project: a paradigm change
Creators: name: Jean-Yves Nuttinck
name: Zongo, Mamadou
name: Faure, Guy
name: Huggings Madondo
name: Bergh, Rafael Van Den
name: Maes, Peter
Publisher: name: F1000Research
Year: 2015

description: Water is one of the main health determinants and is a necessity for every single MSF intervention. In the Niger pilot project so far, we have seen 40 boreholes diagnosed and 12 of these regenerated.The benefits of regenerating rather than replacing boreholes are; speed, efficiency and lower cost. However the numbers of professionals with the required hydrogeology knowledge are lacking and often repairs are not always possible.
Additional file 3 of Surgical site infection after intracorporeal anastomosis for left-sided colon cancer: study protocol for a non-inferiority multicenter randomized controlled trial (STARS)
Creators: name: He, Liang
name: Li, Meng
name: Zhang, Jia-xin
name: Tong, Wei-hua
name: Chen, Yan
name: Wang, Quan
Publisher: name: figshare
Year: 2022
Subjects: subject: Medicine
subject: Microbiology
subject: FOS: Biological sciences
subject: Biotechnology
subject: Cancer
subject: Science Policy
subject: Mental Health
subject: Infectious Diseases
subject: FOS: Health sciences

description: Additional file 3. Informed consent in Chinese.
Phase models of the Milky Way stellar disc
Creators: name: Rodionov, S. A.
name: Orlov, V. V.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present a new iterative method for constructing equilibrium phase models of stellar systems. Importantly, this method can provide phase models with arbitrary mass distributions. The method is based on the following principle. Our task is to generate an equilibrium N-body system with a given mass distribution. For this purpose, we let the system reach equilibrium through its dynamical evolution. During this evolution we hold mass distribution in this system. This principle is realized in our method by means of an iterative procedure. We have used our method to construct a phase model of the disc of our Galaxy. In our method, we use the mass distribution in the Galaxy as input data. Here we used two Galactic density models (suggested by Flynn, Sommer-Larsen and Christensen and by Dehnen and Binney). For a fixed-mass model of the Galaxy we can construct a one-parameter family of equilibrium models of the Galactic disc. We can, however, choose a unique model using local kinematic parameters that are known from Hipparcos data. We show that the phase models constructed using our method are close to equilibrium. The problem of uniqueness for our models is discussed, and we discuss some further applications of our method.
description: 16 pages, 10 figures
Project ELEOS: a barcode / handheld computer based solution for Ebola Management Centres
Creators: name: Gallego, Manuel Silva
Publisher: name: F1000Research
Year: 2015

description: There are several objectives here: to replace an unreliable paper-based system, to reduce medical staff workload and to provide a real-time overview of patient location/status and bed status. Using a mobile application and identification bracelets, patients should be able to be tracked and their treatment therefore should be more efficient.The results show some positive outcomes: more patients were seen in shorter periods of time, therefore reducing hospital staff shift lengths. In addition the mobile application is easy to use and was deployed quickly and cheaply. However, there is currently insufficient technical support on the ground.
Viral load monitoring: how do HIV-positive patients interpret and understand their results?
Creators: name: Horter, Shona
name: Lobenguni Simelane-Mahlinza
name: Velibanti Dlamini
name: Kourline, Tatiana
name: Kerschberger, Bernhard
name: Stringer, Beverley
name: Rusch, Barbara
Publisher: name: F1000Research
Year: 2015

description: In 2012 MSF (in collaboration with Ministry of Health (MoH)) started a VL monitoring pilot to investigate potential challenges with implementation. This then became the SoC in mid 2013 for Shiselweni, following positive results plus stronger WHO recommendations on VL monitoring. There are now around 18,000 patients on ART for whom VL monitoring has been implemented.

 VL monitoring has a positive impact on adherence and potentially on treatment outcomes. Implications for future practice include: increase patient information about VL, ensure careful training of health practitioners and consider VL messaging.
Managing children and adolescents with HIV treatment failure: results from a pilot project in Khayelitsha, South Africa
Creators: name: J Bernheimer
name: G Patten
name: G Van Cutsem
name: A Shroufi
name: Thembisa Makeleni
name: Nompumelelo Mantangana
name: Nobasa Dumile
name: V Cox
Publisher: name: F1000Research
Year: 2015

description: Data regarding the success of antiretroviral therapy (ART) for children shows high rates of virologic failure. A South African study on long term paediatric outcomes showed a 38% failure rate.Key points were that the median age that ART was started was more than three years old, which is too late. The pilot project was resource intensive however it was very simple and interventions can lead to high rates of re-suppression of HIV.
Paediatric HIV diagnosis in non-PMTCT settings: a systematic review
Creators: name: Whitehouse, Katie
name: Luek, Kristen
name: Tuttle, Julia
name: Tan, Trang
name: Cohn, Jen
Publisher: name: F1000Research
Year: 2015

description: There is currently increased but still insufficient testing for children with HIV. There are ambitious global targets (909090) and renewed focus on efficiencies. This review was conducted to inform and update WHO global guidance to identify strategies for improving efficiencies for identifying HIV-positive children.We have found that there is a need for a bigger emphasis on postpartum re-testing of mothers – linked with EPI visits. There is an ongoing lobby within MSF for integration of HIV testing and treatment into paediatric projects.

 