bluuebunny/crossref_metadata_2025_split huggingface dataset:
TRANSFORMATION OF THE DEFENSE PROCUREMENT SYSTEM UNDER THE INFLUENCE OF THE NEEDS OF THE STATE OF MARTIAL
Authors: Zaporozhets S. , Zhezherun Yu. , Zeleny P. , Kolesnyk V. , Britov D. , Zaets M. 
Published: December 2023

The article is devoted to the study of the basic institutional and methodological foundations of the functioning of the defense procurement system during the period of the legal regime of martial law. An analysis of the changes in the regulatory and legal support for defense procurement, which took place during the time of Ukraine's independence, was carried out.
The algorithm of defense procurement during the period of martial law is schematically depicted and systematized by groups of its main participants - state customers. At the same time, their position within the boundaries of defense, security, information and economic components in the field of defense procurement is substantiated.
The parameters of the implementation of the procedure for the implementation of the applicable types of defense procurement are summarized, the specifics of the implementation of individual stages of the defense procurement process are specified. It was found that in the conditions of martial law in Ukraine, three actions of defense procurement are used: closed procurement, bidding with limited participation and simplified bidding with the use of an electronic procurement system.
The evaluation of the most economically advantageous tender offer is automatically most often carried out by the electronic procurement system and is based on taking into account individual criteria (price, life cycle cost, etc.) and the evaluation methodology specified by the customer in the tender documentation. As a rule, the most economically advantageous offer is considered to be either the only one submitted or the one whose price / quoted price will be the lowest.
The authors identified problematic issues of defense procurement, which made it possible to substantiate a number of important characteristic features of the transformed national system of defense procurement, appropriate for implementation in the conditions of the formation of an increased level of national security risk. Under such conditions, the transformed system of defense procurement should have the following characteristics: quality of provision, completeness of provision, structural organization, competitive orientation, redistribution efficiency, quality management, investment attractiveness, innovative development, international integration, competitiveness, priority integration, synergy of system, adaptability, interoperability. This will make it possible to increase the level of efficiency of the defense procurement system under the conditions of implementation of anti-corruption measures and activation of digital transformation processes.
Therefore, reforming the defense procurement system is a complex and long-term process that requires the participation of all interested parties. An important step in this direction, among others, is the improvement of procedures for monitoring the execution of state defense procurements.
Factores que Influyen en el Apego al Tratamiento Antirretroviral en Pacientes con VIH en el HGZ No. 3 Tuxtepec Oaxaca
Authors: Vázquez Martínez José Román , Cruz Martínez José Adalberto , Cruz Sacramento Ángela Carlota 
Published: December 2023

Introducción: La infección por Virus de la Inmunodeficiencia Humana (VIH) es una enfermedad crónica y constituye uno de los problemas de salud pública más graves a nivel mundial, debido a su propagación constante y continua. El tratamiento actualmente ha modificado sustancialmente la evolución de la enfermedad con la disminución de infecciones oportunistas, así como mejorando la calidad y esperanza de vida para las personas infectadas. La Terapia Antirretroviral de Gran Actividad (TARGA), ha hecho posible comenzar a hablar de la infección por VIH como una enfermedad crónica no necesariamente fatal. El éxito del tratamiento está relacionado con la adherencia a los medicamentos por lo que identificar los factores que influyen en el apego es fundamental para predecir el éxito o fracaso del tratamiento y evitar complicaciones, morbilidad y mortalidad de los pacientes. Material y Métodos: El diseño de estudio es observacional, descriptivo, transversal, aplicado a un universo de 153 pacientes, que recibían tratamiento antirretroviral en el HGZ No. 3, Tuxtepec, Oaxaca, previo consentimiento informado, se les aplicó el test de Morisky-Green-Levine modificado, así como la encuesta de factores determinantes de cumplimiento terapéutico. Resultados: De un total de 153 pacientes, 118 cumplieron con los criterios de selección, a los que se aplicó el cuestionario, una vez obtenidos los datos se concluyó que la adherencia al tratamiento antirretroviral si está relacionada a factores externos y propios del paciente. Conclusiones: Los factores que se asocian a el apego al tratamiento antirretroviral, se encuentran relacionados a los servicios de salud, el apoyo familiar, la información de la enfermedad y tratamiento. Factores como la depresión y la discriminación, juegan un papel importante y son fundamentales para que exista un apego al tratamiento antirretroviral a largo plazo.
El Desarrollo Fonológico en el Dominio del Lenguaje en los Niños de Tercer Año General Básica
Authors: Elien Magdalena López Morejón  , Tandazo Eras Mary Elena , Arguello Arguello Juana María 
Published: December 2023

El presente trabajo de investigación sobre como incide el desarrollo fonológico en el dominio del lenguaje en los niños de tercer año general básica, su objetivo es analizar la incidencia del desarrollo fonológico en el dominio del lenguaje en los estudiante de la escuela mencionada anteriormente, hay que tener claro que en este subnivel los alumnos deben manejar perfectamente las articulaciones fonológicas, favoreciendo la interiorización de la conciencia metalingüísticas y de habilidades sistemática como la lectura, escritura puedan desarrollarse perfectamente, la metodología del trabajo investigativo se destacó en realizar y plantear actividades en los estudiantes de tercer año de educación general básica, se realizaron instrumento para recabar información del personal docente y padres de familia como fue la entrevista y la encuesta, de igual modo el total de los docentes entrevistados fueron 3 y encuestados los padres de familia fueron 40, los resultados nos permitieron destacar visiones amplias y objetivos claro sobre la importancia en la adquisición de los nuevos conocimientos con optimo uso de herramientas pedagógicas que sea del agrado de los alumnos durante su formación educativa.
ОЦЕНКА ЭКОЛОГИЧЕСКОГО СОСТОЯНИЯ ПОЙМЕННЫХ ЛЕСОВ РЕКИ ШАРЫН И НЕОБХОДИМЫЕ МЕРЫ ПО ИХ ВОСПРОИЗВОДСТВУ
Authors: Кертешев Талгат , Шыныбеков Мурат , Акимжанов Дархан , Огарь Наталья , Жумаров Мухимжан , Нурумов Дилшат 
Published: December 2023

Река Шарын – крупнейший приток р. Иле. Площадь бассейна реки 7720 км2, длина 427 км. Истоки реки и ее правобережные притоки расположены на южном склоне Кетменского хребта. Наиболее многоводный ее левобережний приток (река Каркара) формирует сток с северо-восточных отрогов Терскей-Алатау и Кунгей-Алатау. Шарын относится к рекам смешанного типа питания (с преобладанием снегового), с растянутым периодом весенне-летнего половодья (апрель- июль) из-за разновременного таяния снега в различных высотных зонах. Формирование стока происходит в основном в высокогорной и среднегорной зонах бассейна.
Мойнакская ГЭС была введена в эксплуатацию в 2012 году в верхней части реки Шарын. Создание гидроэлектростанции изменило поток реки Шарын, ниже по течению от объекта произрастает ясеновая роща на площади 5014 га. Ясеновая роща имеет статус памятника природы республиканского значения. Здесь кроме ясеня согдианского растут туранга сизолистый, вяз перистоветвистый, барбарис илийский, облепиха и другие.
Хотя была проведена некоторая работа по управлению водными ресурсами, до сих пор не разработан План управления водными ресурсами реки Шарын. В рамках исследований проведена оценка современного состояния пойменных лесов, степени покрытия растительностью и уровня увлажненности поймы в динамике за 2000-2018 гг.
На основе анализа имеющихся материалов и результатам проведенных исследований обобщены и предложены меры по мониторингу гидрологического режима реки и состояния популяции ясеня согдианского, как ключевого вида, по обеспечению периодического затопления поймы, соответствующего условиям устойчивого функционирования пойменной растительности.
СОВЕРШЕНСТВОВАНИЕ РЕЖИМА ОРОШЕНИЯ РИСА В УСЛОВИЯХ КЫЗЫЛОРДИНСКОГО МАССИВА ОРОШЕНИЯ
Authors: Олжабаева Аксауле , Байманов Жанузак , Умбетова Шолпан , Айбекқызы Ақбопе 
Published: December 2023

Необходимость полного удовлетворения растущей численности страны продовольственным зерном – одна из ключевых проблем сельскохозяйственного производства. Важнейший фактор увеличения объема производства зерна в современных условиях –интенсификация зернового поля. Сущность процесса интенсификации сводится к качественному преобразованию основного средства производства сельскохозяйственной продукции-земли и совершенствованию технологии выращивания зерновых культур таким образом, чтобы увеличить выход зерна с единицы площади при одновременном сокращении затрат труда и средств на единицу получаемой продукции. Особое место в интенсификации отводится разработке и освоению современных технологий выращивания сельскохозяйственных культур.
Особенность интенсивных технологий возделывания сельскохозяйственных культур в частности зерновых заключается в направленности системы технологических операций на нейтрализацию факторов, лимитирующих урожайность. Поэтому разработка таких технологий основывается на учете биологических особенностей с тем, чтобы активизировать жизнедеятельность растений путем создания наиболее благоприятных условий для конкретного сорта и на конкретном поле. Эффективность интенсивных технологий наилучшим образом проявляется только при общей высокой культуре земледелия, при освоении всех элементов его научно-обоснованных систем, при строгом соблюдении технологической, а также детальное изучение водного баланса орошаемых земель позволяет разработать мероприятия, направленные на сохранение благоприятной мелиоративной обстановки. В числе важнейших это строгое нормирование водоподачи на орошаемые земли. Исследования по обоснованию рациональных норм водопотребления сельскохозяйственных культур и водно-балансовые наблюдения проводились в Караултюбинском опытном хозяйстве Кызылординского массива орошения.
Detecting Biosignatures in Nearby Rocky Exoplanets Using High-contrast Imaging and Medium-resolution Spectroscopy with the Extremely Large Telescope
Authors: Zhang Huihao , Wang 王 Ji 吉 , Plummer Michael K. 
Published: December 2023

Abstract
In the upcoming decades, one of the primary objectives in exoplanet science is to search for habitable planets and signs of extraterrestrial life in the Universe. Signs of life can be indicated by thermal-dynamical imbalance in terrestrial planet atmospheres. O2 and CH4 in the modern Earth’s atmosphere are such signs, commonly termed biosignatures. These biosignatures in exoplanetary atmospheres can potentially be detectable through high-contrast imaging instruments on future extremely large telescopes. To quantify the signal-to-noise ratio (S/N) with extremely large telescopes, we select up to 10 nearby rocky planets and simulate medium-resolution (R ∼ 1000) direct imaging of these planets using the Mid-infrared ELT Imager and Spectrograph (ELT/METIS, 3–5.6 μm) and the High Angular Resolution Monolithic Optical and Near-infrared Integral field spectrograph (ELT/HARMONI, 0.5–2.45 μm). We calculate the S/N for the detection of biosignatures including CH4, O2, H2O, and CO2. Our results show that GJ 887 b has the highest detection of S/N for biosignatures, and Proxima Cen b exhibits the only detectable CO2 among the targets for ELT/METIS direct imaging. We also investigate the TRAPPIST-1 system, the archetype of nearby transiting rocky planet systems, and compare the biosignature detection of transit spectroscopy with JWST versus direct spectroscopy with ELT/HARMONI. Our findings indicate JWST is more suitable for detecting and characterizing the atmospheres of transiting planet systems such as TRAPPIST-1 that are relatively further away and have smaller angular separations than more nearby nontransiting planets.
Rapid Black Hole Spin-down by Thick Magnetically Arrested Disks
Authors: Lowell Beverly , Jacquemin-Ide Jonatan , Tchekhovskoy Alexander , Duncan Alex 
Published: December 2023

Abstract
Black hole (BH) spin can play an important role in galaxy evolution by controlling the amount of energy and momentum ejected from near the BH into the surroundings. We focus on radiatively inefficient and geometrically thick magnetically arrested disks (MADs) that can launch strong BH-powered jets. With an appropriately chosen adiabatic index, these systems can describe either the low-luminosity or highly super-Eddington BH accretion regimes. Using a suite of 3D general relativistic magnetohydrodynamic simulations, we find that for any initial spin, an MAD rapidly spins down the BH to the equilibrium spin of 0 < a
eq ≲ 0.1, very low compared to a
eq = 1 for the standard thin luminous (Novikov–Thorne) disks. This implies that rapidly accreting (super-Eddington) BHs fed by MADs tend to lose most of their rotational energy to magnetized relativistic outflows. In an MAD, a BH only needs to accrete 20% of its own mass to spin down from a = 1–0.2. We construct a semi-analytic model of BH spin evolution in MADs by taking into account the torques on the BH due to both the hydrodynamic disk and electromagnetic jet components, and find that the low value of a
eq is due to both the jets slowing down the BH rotation and the disk losing a large fraction of its angular momentum to outflows. Our results have crucial implications for how BH spins evolve in active galaxies and other systems such as collapsars, where the BH spin-down timescale can be short enough to significantly affect the evolution of gamma-ray emitting BH-powered jets.
Can Proton Beam Heating Flare Models Explain Sunquakes?
Authors: Sadykov Viacheslav M. , Stefan John T. , Kosovichev Alexander G. , Stejko Andrey M. , Kowalski Adam F. , Allred Joel C. , Kerr Graham S. 
Published: December 2023

Abstract
Solar Dynamics Observatory (SDO)/Helioseismic and Magnetic Imager (HMI) observations reveal a class of solar flares with substantial energy and momentum impacts in the photosphere, concurrent with white-light emission and helioseismic responses, known as sunquakes. Previous radiative hydrodynamic modeling has demonstrated the challenges of explaining sunquakes in the framework of the standard flare model of “electron beam” heating. One of the possibilities to explain the sunquakes and other signatures of the photospheric impact is to consider additional heating mechanisms involved in solar flares, for example via flare-accelerated protons. In this work, we analyze a set of single-loop Fokker–Planck and radiative hydrodynamics RADYN+FP simulations where the atmosphere is heated by nonthermal power-law-distributed proton beams which can penetrate deeper than the electron beams into the low atmospheric layers. Using the output of the RADYN models, we calculate synthetic Fe i 6173 Å line Stokes profiles and from those the line-of-sight observables of the SDO/HMI instrument, as well as the 3D helioseismic response, and compare them with the corresponding observational characteristics. These initial results show that the models with proton beam heating can produce the enhancement of the HMI continuum observable and explain qualitatively the generation of sunquakes. The continuum observable enhancement is evident in all models but is more prominent in ones with E

c
≥ 500 keV. In contrast, the models with E

c
≤ 100 keV provide a stronger sunquake-like helioseismic impact according to the 3D acoustic modeling, suggesting that low-energy (deka- and hecto-keV) protons have an important role in the generation of sunquakes.
Spectral Hardness and Evolution of Swift Gamma-Ray Bursts and X-Ray Afterglows
Authors: Du X. Y. , Zhen H. Y. , Liu J. X. , Zhang Z. B. , Dong X. F. , Ge Y. , Yan J. M. 
Published: December 2023

Abstract
Spectral hardness of gamma-ray bursts can be characterized by either hardness ratio or peak energy, and the inconsistency of these parameters can reflect spectral diversity and complexity. We have chosen 310 Swift bursts with well-measured X-ray afterglows to analyze the distributions of their peak energies and hardness ratios before and after absorption of neutral hydrogen. We categorize them into four types according to X-ray temporal patterns and calculate the hardness ratios of both γ-rays and X-rays. It is found that the hardness ratios of X-rays are systematically smaller than those of γ-rays. We also find that both γ-ray hardness ratios and peak energies of bursts of types I, II, and III are identically distributed and are significantly lower than the corresponding measurements of type IV bursts in statistics, which hints that the evolving spectra of type IV bursts are most probably affected by the geometry of outflows. This proves that the influence of neutral hydrogen absorption on the estimation of hardness ratio is negligible even though it can reduce the brightness of γ/X-rays somewhat. Furthermore, we verify that almost all the observed spectra of gamma-ray bursts can be described by a broken power-law function and confirm a magnetar origin for the bursts with internal X-ray plateaus.
The UNCOVER Survey: A First-look HST+JWST Catalog of Galaxy Redshifts and Stellar Population Properties Spanning 0.2 ≲ z ≲ 15
Authors: Wang 王冰 Bingjie 洁 , Leja Joel , Labbé Ivo , Bezanson Rachel , Whitaker Katherine E. , Brammer Gabriel , Furtak Lukas J. , Weaver John R. , Price Sedona H. , Zitrin Adi , Atek Hakim , Coe Dan , Cutler Sam E. , Dayal Pratika , van Dokkum Pieter , Feldmann Robert , Marchesini Danilo , Franx Marijn , Förster Schreiber Natascha , Fujimoto Seiji , Geha Marla , Glazebrook Karl , de Graaff Anna , Greene Jenny E. , Juneau Stéphanie , Kassin Susan , Kriek Mariska , Khullar Gourav , Maseda Michael , Mowla Lamiya A. , Muzzin Adam , Nanayakkara Themiya , Nelson Erica J. , Oesch Pascal A. , Pacifici Camilla , Pan Richard , Papovich Casey , Setton David J. , Shapley Alice E. , Smit Renske , Stefanon Mauro , Suess Katherine A. , Taylor Edward N. , Williams Christina C. 
Published: December 2023

Abstract
The recent UNCOVER survey with the James Webb Space Telescope (JWST) exploits the nearby cluster A2744 to create the deepest view of our Universe to date by leveraging strong gravitational lensing. In this work, we perform photometric fitting of more than 50,000 robustly detected sources out to z ∼ 15. We show the redshift evolution of stellar ages, star formation rates, and rest-frame colors across the full range of 0.2 ≲ z ≲ 15. The galaxy properties are inferred using the Prospector Bayesian inference framework using informative Prospector-β priors on the masses and star formation histories to produce joint redshift and stellar populations posteriors. Additionally, lensing magnification is performed on the fly to ensure consistency with the scale-dependent priors. We show that this approach produces excellent photometric redshifts with σ
NMAD ∼ 0.03, of a similar quality to the established photometric redshift code EAzY. In line with the open-source scientific objective of this Treasury survey, we publicly release the stellar population catalog with this paper, derived from our photometric catalog adapting aperture sizes based on source profiles. This release (the catalog and all related documentation are accessible via the UNCOVER survey web page: https://jwst-uncover.github.io/DR2.html#SPSCatalogs with a copy deposited to Zenodo at doi:10.5281/zenodo.8401181) includes posterior moments, maximum likelihood spectra, star formation histories, and full posterior distributions, offering a rich data set to explore the processes governing galaxy formation and evolution over a parameter space now accessible by JWST.
The Pengaruh Ekstrak Metanol Tembakau (Nicotiana tabacum L.) terhadap Kejadian dan Intensitas Serangan Hama pada Pertanaman Cabai Merah (Capsicum annum L.)
Authors: Yoseph Pratama Lumban Tobing  , R. Arif Malik Ramadhan  , Nasrudin Nasrudin  
Published: December 2023

Tanaman cabai merupakan salah satu komoditas penting di Indonesia. Salah satu faktor yang menyebabkan menurunnya kuantitas dan kualitas tanaman yaitu hama. Pengendalian hama yang saat ini diterapkan masih terfokus pada penggunaan pestisida sintetik yang memiliki berbagai dampak negatif. Pestisida nabati merupakan pestisida yang bahan dasarnya terbuat dari tumbuhan, penggunaan pestisida nabati diharapkan dapat menjadi solusi alternatif dalam menekan serangan hama pada tanaman cabai dengan dampak negatif yang rendah. Penelitian ini bertujuan untuk mengetahui tingkat efektifitas ekstrak metanol daun tembakau terhadap kejadian dan intensitas serangan hama pada tanaman cabai. Rancangan yang digunakan dalam penelitian ini ialah Rancangan Acak Kelompok (RAK) dengan 5 perlakuan dan 4 ulangan. Perlakuan yang diujikan dalam penelitian merupakan ekstrak metanol daun tembakau dengan konsentrasi A1 (0%), A2 (0,5%), A3 (1%), A4 (2%), A5 (4%). Masing-masing perlakuan terdiri dari 4 tanaman sehingga didapatkan 80 unit percobaan. Hasil penelitian menunjukkan bahwa perlakuan A5 memiliki hasil yang lebih unggul pada parameter jumlah daun terserang dengan nilai serangan paling rendah yaitu 2,37%. Parameter intensitas serangan terbaik ditunjukkan oleh perlakuan A5 dengan nilai dari 0% di 2 MST sampai 1,81% di 11 MST. Perlakuan A4 dengan konsentrasi ekstrak metanol daun tembakau 2% memperoleh hasil tinggi tanaman paling baik yaitu 14,31 cm pada 2 MST dan 45,44 cm pada 7 MST. mulai dari 14,25 cm di 2 MST sampai 45,44 cm di 7 MST dan jumlah daun tertinggi sebanyak 11,21 helai di 2 MST hingga 56,87 helai di 11 MST dibanding dengan perlakuan kontrol sebanyak 10,44 helai di 2 MST hingga 52,81 helai di 11 MST.
Anxiety sensitivity, stress, and postural control: their implications on archery performance in 11–14-year-olds
Authors: Tokmakci Hayrettin Hayri , Özgür Serkan , Varol Tuncay 
Published: December 2023

Purpose.Archery, a sport based on individual performance, requires postural stability,oncentration and the ability to cope with stress. The effect of stress on success, however, is not clear in the adolescent age group. The present study investigates the association between stress and trait anxiety levels and postural control and shooting performance in young adolescent archers.Methods.Included in the study were a total of 22 licensed archers (6 female; 16 male) aged between 11 and 14 who were evaluated using the ‘Anxiety Sensitivity Index-3’ and ‘Trier Social Stress Test’ (child version, arithmetic component) to measure their trait anxiety status and susceptibility to stress, respectively. Stress was measured based on the number of heartbeats per minute. An evaluation of static postural control was made using a pedobarography device before arrow release, with and without subjecting the archer to stress. To assess performance, 10 arrows were shot at a target 18 metres away, twice – before and after subjecting the participant to stress.Results.Postural control showed no significant change under stress. However, the participants’ trait anxiety status inversely correlated with shooting success. Post-stress shooting scores correlated with total ASI-3 score (<i>r</i> = –0.513; <i>p</i> = 0.021) and its social sub-group (<i>r</i> = –0.634; <i>p</i> = 0.003).Conclusions.A moderately inverse correlation can be noted between the trait anxiety state and shooting success in young adolescent archers subjected to stress. Furthermore, stress was observed to have a detrimental effect on the shooting success of people with a high level of trait anxiety.