bluuebunny/crossref_metadata_2025_split huggingface dataset:
ANALISIS FAKTOR YANG MEMPENGARUHI KINERJA PERANGKAT DESA DENGAN DISIPLIN KERJA SEBAGAI VARIABEL INTERVENING (Studi Kasus di Desa Bercak, Desa Bercak Asri, Desa Kladi. Kecamatan Cermee Kab. Bondowoso)
Authors: Septianingrum Rini , Hamdun Edy Kusnadi , Anshory Muhammad Iqbal 
Published: March 2024

The aim of this study was to analyze the factors of leadership style and work environment that influence the performance of village officials with Workout discipline as an intervening variable (case study in Bercak Village, Bercak Asri Village, Kladi Village, Cermee District, Bondowoso Regency). The sampling technique used in this research was a saturated sample with a total sample of 44 village officials. Data analysis and hypothesis testing in this research used Partial Least Square Structural Equation Modeling (PLS-SEM)
The results of direct effect hypothesis test using Smart PLS 3.0 application showed that leadership style has a positive but not significant effect on work discipline, work environment has a positive but not significant effect on work discipline, leadership style has a positive but not significant effect on performance, work environment has a significant positive effect on performance, work discipline has a significant positive effect on performance, leadership style has nosignificant effect on performance through work discipline, work environment has not significant effect on performance through work discipline.
Anaerobe treatment of organicwaste
Authors: Voytovych І.G. 
Published: March 2024

The problems what it is possible to solve with helpe of biogas technology: power industry; agricultural; ecological; social were named. The type of raw materials which was investigated from 1993 y. Into laboratory of UNFU on suitability to receive of biogas were named. The technological factors that influence on process obtaining of biogas ware indicated and occasion from experience functioning of plant when don't observe to form of biogas were named.
It is established that the processing of organic waste without oxygen access from the air is a highly efficient way of obtaining quality organic fertilizers; environmentally friendly energy, which is biogas; reducing environmental pollution and improving the social conditions of residets, especially rural populations. It is recommended for installation in each rural yard where organic, small, family-type biogas plants accumulate up to 20 m3 of organic waste. It is substantiated that after being in biohumus plants, organic waste acquires better characteristics of fertilizers. It is estimated that small biohumus plants can generate enough biogas for their own needs.
Features of laser welding of wood-cutting band saws
Authors: Rebeznyuk I.T. , Lazarchuk K. 
Published: March 2024

Abstract. Laser welding is the most effective method of joining the ends of band saws according to the high level of existing jointing requirements; using this method allows you to form anesthetic, even and smooth sound weld without deformation. Laser welding has a number of advantages but at the same time the main disadvantage of laser welding is the high cost of equipment and the need for highly qualified maintenance. The paper considers the main features of the method for joining a number of band saws into an endless band saw by laser welding. The specific feature of laser welding is that it produces the highest degree of energy density on a tiny spot. The essence of the laser welding process sis that inartificially generated laser beam is used as a source of thermal energy to per form the work. High cooling rates of the weld (up to 3,000° C/s) and high speeds of welding (up to 120 m/h) of low-carbon steels affect the ir primary and secondary structure. The same factors provide a disordered fine-grained structure, which contributes to an increased resistance of the weld to the appearance of hot cracks. The laser welding of metals operates in three modes, the advantages and disadvantages of these modes being analyzed. Annealing after welding, accompanied by heating to a temperature of 450–470° C and holding for 30 s (recommended by Rentgen – the CR400 steel manufacturer) causes a gradual equalization of the hardness distribution. In the CR400 steel, containing chromium and tungsten at the lower allowable limit (3,5% and 5,3%, respectively), complete recovery of hard ness after annealing is not observed. Fluctuation sin hardness reach 30–35%, which negatively affects the strength of the saw. To eliminate this shortcoming, it is necessary to equalize the hardness, which can be provided by a special thermal strengthening. It is proposed to develop modes of laser thermal strengthening of the weld after the welding process, which will significantly increase the strength of the tool.
Dependence of band saw noise on the welding method
Authors: Rebeznyuk I.T. , Lazarchuk K.Ya. 
Published: March 2024

The band saw used on a woodcutting band saw machine must be securely connected to the endless band, and the connection method must provide both the required strength and the lowest noise level during operation. The research methodology covers the stage of detecting, using a professional noise level meter, the sections of the cutting mechanism with the highest level of noise and the stage of measuring the noise level on a band saw machine at an idle mode with tension supports, for saws: 1 – connected by arc welding, and the joint weld is located at an angle of 90° to the rear edge; 2 – connected by laser welding, and the seam is located at an angle of 90° to the rear edge; 3 – connected by laser welding, and the seam is located at an angle of 60° to the rear edge. The experiments were carried out on a modern horizontal band saw machine MEBOR HTZ 1200 with a wide band. The machine is designed for lengthwise cutting of logs in order to obtain high quality lumber. Measurements of the noise level during the operation of band saws showed that noise is generated in certain sections of the cutting mechanism – the section of the saw run on the pulley, the section of contact of the saw with the first guide and the section of the saw exit from the second guide. It has been established that during the operation of horizontal bandsaw machines, in which saws are used and whose ends are connected by traditional arc welding and the weld is located at an angle of 90° to the rear edge of the saw, the noise level exceeds the sanitary norms by a maximum of 35 dB. It is found that welding of band saws by modern laser method, when the seam is located at an angle of 60° to the rear edge of the saw, allows obtaining a noise level 10–15 dB less than with laser welding of the saw when the seam is at an angle of 90° to the indicated edge. An analysis of the noise spectra showed that the linear spectrum of sound pressure has a uniform distribution of the sound energy radiation intensity in a wide frequency range of 125–8000 Hz. It was found that, starting from the third octave (125 Hz), for a laser-welded saw with the seam located at an angle of 60° to the rear edge of the saw, the noise level exceeds the sanitary norms (80 dB) by 19 dB. The experimental studies have shown a significant reduction in noise when using band saws welded by a laser method and with the seam located at an angle of 60° to the rear edge of the saw. It was found that in some frequency bands the noise level exceeds sanitary norms and in this regard the design of a band saw machine with a new damping device is proposed, which, according to data from the technical literature, will provides further noise reduction; and in order to clarify the amount of noise reduction, it is necessary to conduct further experimental studies.
Revisão sobre os efeitos do fogo em eriocaulaceae como subsídio para a sua conservação
Authors: De Oliveira Neves Ana Carolina , Cadaval Bedê Lúcio , Parentoni Martins Rogério 
Published: March 2024

Eriocaulaceae é uma das famílias mais numerosas e ricas em endemismos do Cerrado. A beleza das suas inflorescências faz com que espécies conhecidas como sempre-vivas (plantas de diversas famílias que tem suas inflorescências pouco alteradas após serem colhidas e desidratadas), sejam cobiçadas pelo mercado nacional e internacional de plantas ornamentais secas. O declínio das populações de várias eriocauláceas tem sido atribuído a um aparente aumento da freqüência de queimadas realizadas no Cerrado para renovar pastagens, preparar o solo para a agricultura e devido ao manejo extrativista. Neste trabalho, revisamos a literatura científica que trata da ação do fogo em sete espécies de Eriocaulaceae que ocorrem no Cerrado. O fogo promoveu o aumento do número de indivíduos reprodutivos nas três espécies estudadas quanto a esse aspecto (Actinocephalus polyanthus, Comanthera elegantula e Syngonanthus nitens), de inflorescências por indivíduo em duas entre quatro espécies (Comanthera elegantula e Leiothrix crassifolia) e de sementes por capítulo na única espécie estudada nesse aspecto (S. nitens). O fogo estimulou ainda o recrutamento por plântulas devido Ã eliminação da vegetação competidora em três das quatro espécies estudadas (A. polyanthus, C. elegantula e Leiothrix arrecta, e por brotamentos em S. nitens). Em espécies policárpicas, o aumento do esforço reprodutivo pode impactar negativamente a produção de inflorescências nos anos seguintes Ã primeira estação reprodutiva após a queima (ex. C. elegantula e S. nitens), além do crescimento e sobrevivência de indivíduos em idade reprodutiva (ex. C. elegantula</i.). Entretanto, a mortalidade e a redução do crescimento podem ser atenuados pela coleta de escapos antes que as sementes sejam produzidas, como foi observado em C. elegantula. Queimadas freqüentes podem levar populações ao declínio através da exaustão do banco de sementes, mortalidade (principalmente de plântulas) e estímulo Ã reprodução e morte precoce em espécies monocárpicas. Por outro lado, a exclusão de queimadas por longos períodos pode levar as populações ao envelhecimento e ao declínio devido Ã redução no recrutamento e aumento da mortalidade, causadas pelo aumento da vegetação competidora. Considerações sobre o manejo de espécies de Eriocaulaceae são feitas, considerando diferenças em suas histórias de vida.Â
Fogo e artesanato de capim-dourado no Jalapão - usos tradicionais e consequências ecológicas
Authors: Belloni Schmidt Isabel , Bonesso Sampaio Maurício , Benedetti Figueiredo Isabel , Ticktin Tamara 
Published: March 2024

O artesanato de hastes florais de capim-dourado Syngonanthus nitens, Eriocaulaceae) costuradas com as fibras de folhas-jovens de buriti (Mauritia flexuosa, Arecaceae) tornou-se símbolo da região do Jalapão e mesmo de todo o estado de Tocantins na última década. Além do extrativismo vegetal, esta importante atividade econômica envolve o uso do fogo para o estímulo da floração do capim-dourado. Este artigo sintetiza resultados de estudos etno-ecológicos desenvolvidos em cooperação com comunidades rurais e gestores ambientais do Jalapão entre 2002 e 2011. Os estudos centraram-se nos efeitos do extrativismo de hastes de capim-dourado e folhas-jovens de buriti nas populações destas espécies, bem como nos efeitos do uso do fogo para o manejo dos campos úmidos de colheita de capim-dourado. Conforme relatado por extrativistas experientes, queimadas bienais estimulam a floração, ou seja, a produção de hastes do capim-dourado. Além disto, simulações numéricas indicam que queimadas bienais são ideais para o crescimento populacional de capim-dourado em longo prazo. Intervalos de queima mais longos, apesar de não estimularem a floração, não prejudicam as populações desta espécie. As populações de capim-dourado são muito resistentes a queimas, no entanto, apresentaram flutuações anuais significativas em resposta a variações também anuais na precipitação durante o período chuvoso. Estas características são provavelmente compartilhadas por outras dezenas de espécies vegetais dos campos úmidos. A colheita de hastes de capimdourado após 20 de setembro, como determinado por legislação estadual em Tocantins, não tem efeitos negativos sobre os indivíduos tampouco sobre as populações de capim-dourado. A colheita de folhas-jovens de buriti para a obtenção das fibras utilizadas para costurar o capim-dourado não causam efeitos negativos em indivíduos e populações de buriti, na intensidade praticada no Jalapão. A legislação atual é adequada a todo o estado do Tocantins, pois previne a colheita precoce de capim-dourado, que é extremamente prejudicial Ã conservação da espécie. Ações para prevenção da colheita precoce devem envolver educação ambiental e fiscalização. Como forma de reduzir a incidência de incêndios de grande extensão na região deve-se capacitar os moradores locais para o uso controlado do fogo. Queimadas controladas nos campos úmidos devem ser feitas com extremo cuidado para evitar incêndios em fisionomias sensíveis ao fogo, como as áreas de ocorrência de buriti.

Palavras-chave: extrativismo; gestão de recursos naturais; produtos da biodiversidade; produtos florestais
não-madeireiros; uso sustentável.
Perancangan Set Meja Makan Menggunakan Konsep Space Saving dengan Jerami Sebagai Unsur Hias
Authors: Khoirul Musadid Ahmad , Wibowo DS. Drajad , Zainudin Achmad 
Published: March 2024

Furniture merupakan produk pelengkap yang dibutuhkan dalam kehidupan, baik interior dan eksterior. Perkembangan kebutuhan dan desain furniture juga mengalami peningkatan yang baik dan dapat menyesuaikan kondisi juga manfaatnya. Peningkatan jumlah penduduk setiap tahun dapat mempengaruhi dalam perkembangan desain baik hingga hunian dan kebutuhan lainnya. Penelitian ini bertujuan untuk memberikan ide perancangan desain furniture yang mempunyai kekuatan, kenyamanan, keunikan dan fleksibel terhadap ruang, yaitu konsep space saving. Material yang digunakan dalam penelitian menggunakan kayu jati sebagai material utama dan jerami padi sebagai unsur hias. Metode penelitian perancangan ini menggunakan pendekatan design thinking yang mempunyai lima tahapan perencanaan yang sesuai dengan konsep perancangan, yaitu: (1) Empathize, (2) Define, (3) Ideate, (4) Prototype, (5) Test. Data informasi yang dikumpulkan melalui observasi lapangan dengan wawancara pada narasumber terkait dan observasi melalui sumber media terkait, yang mana data tersebut dapat menjadi panduan penelitian. Penelitian yang bersifat kualitatif ini dilakukan dengan menjalankan langkah-langkah metodologis: (1) mengumpulkan data sumber masalah; (2) Menyusun konsep desain; (3) membuat sketsa alternatif; (4) memilih desain terpilih dari alternatif desain yang tersedia; dan (5) menjalankan tahap perwujudan produk. Perancangan desain perpaduan ide konsep furniture space saving yang mengarah pada fungsional dan menjadi konsep utama yang dipadukan dengan kaki gaya Scandinavian (sisi estetik), dan jerami sebagai unsur hias pada top meja utama dapat menjadi sebuah pembelajaran sehingga menghasilkan produk yang modern, fleksibel, dan mudah dalam penyimpanan serta pengemasan.
The TESS–Keck Survey. XIX. A Warm Transiting Sub-Saturn-mass Planet and a Nontransiting Saturn-mass Planet Orbiting a Solar Analog
Authors: Hill Michelle L. , Kane Stephen R. , Dalba Paul A. , MacDougall Mason , Fetherolf Tara , Li Zhexing , Pidhorodetska Daria , Batalha Natalie M. , Crossfield Ian J. M. , Dressing Courtney , Fulton Benjamin , Howard Andrew W. , Huber Daniel , Isaacson Howard , Petigura Erik A. , Robertson Paul , Weiss Lauren M. , Behmard Aida , Beard Corey , Chontos Ashley , Dai Fei , Giacalone Steven , Hirsch Lea A. , Holcomb Rae , Lubin Jack , Mayo Andrew W. , Močnik Teo , Murphy Joseph M. Akana , Polanski Alex S. , Rosenthal Lee J. , Rubenzahl Ryan A. , Scarsdale Nicholas , Turtelboom Emma V. , Van Zandt Judah , Bieryla Allyson , Ciardi David R. , Eastman Jason D. , Falk Ben , Hesse Katharine M. , Latham David W. , Livingston John , Matson Rachel A. , Matthews Elisabeth , Ricker George R. , Rudat Alexander , Schlieder Joshua E. , Seager S. , Winn Joshua N. 
Published: March 2024

Abstract
The Transiting Exoplanet Survey Satellite (TESS) continues to increase dramatically the number of known transiting exoplanets, and is optimal for monitoring bright stars amenable to radial velocity (RV) and atmospheric follow-up observations. TOI-1386 is a solar-type (G5V) star that was detected via TESS photometry to exhibit transit signatures in three sectors with a period of 25.84 days. We conducted follow-up RV observations using Keck/High Resolution Echelle Spectrometer (HIRES) as part of the TESS–Keck Survey, collecting 64 RV measurements of TOI-1386 with the HIRES spectrograph over 2.5 yr. Our combined fit of the TOI-1386 photometry and RV data confirm the planetary nature of the detected TESS signal, and provide a mass and radius for planet b of 0.148 ± 0.019 M
J and 0.540 ± 0.017 R
J, respectively, marking TOI-1386 b as a warm sub-Saturn planet. Our RV data further reveal an additional outer companion, TOI-1386 c, with an estimated orbital period of 227.6 days and a minimum mass of 0.309 ± 0.038 M
J. The dynamical modeling of the system shows that the measured system architecture is long-term stable, although there may be substantial eccentricity oscillations of the inner planet due to the dynamical influence of the outer planet.
Aperture and Resolution Effects on Ultraviolet Star-forming Properties: Insights from Local Galaxies and Implications for High-redshift Observations*
Authors: Clark Ilyse , Berg Danielle A. , Leitherer Claus , Arellano-Córdova Karla Z. , Sander Andreas A. C. 
Published: March 2024

Abstract
We present an analysis of the effects of spectral resolution and aperture scale on derived galaxy properties using far-ultraviolet (FUV) spectra of local star-forming galaxies from the International Ultraviolet Explorer (R ∼ 250, field of view (FOV) ∼ 10″ × 20″) and Cosmic Origins Spectrograph on the Hubble Space Telescope (R ∼ 15,000, FOV ∼ 2.″5). Using these spectra, we measured FUV luminosities, spectral slopes, dust attenuation, and equivalent widths. We find that galaxies with one dominant stellar cluster have FUV properties that are independent of aperture size, while galaxies with multiple bright clusters are sensitive to the total light fraction captured by the aperture. Additionally, we find significant correlations between the strength of stellar and interstellar absorption lines and metallicity, indicating metallicity-dependent line-driven stellar winds and interstellar macroscopic gas flows shape stellar and interstellar spectral lines, respectively. The observed line strength versus metallicity relation of stellar-wind lines agrees with the prediction of population synthesis models for young starbursts. In particular, measurements of the strong stellar C iv
λλ1548, 1550 line provide an opportunity to determine stellar abundances as a complement to gas-phase abundances. We provide a relation between the equivalent width of the C iv line and the oxygen abundance of the galaxy. We discuss this relation in terms of the stellar-wind properties of massive stars. As the driving lines in stellar winds are mostly ionized iron species, the C iv line may eventually offer a method to probe α-element-to-iron ratios in star-forming galaxies once consistent models with nonsolar abundance ratios are available. These results have important implications for the galaxy-scale, low-resolution observations of high-redshift galaxies from JWST (R ∼ 100–3500).
JWST-MIRI Spectroscopy of Warm Molecular Emission and Variability in the AS 209 Disk
Authors: Romero-Mirza Carlos E. , Öberg Karin I. , Banzatti Andrea , Pontoppidan Klaus M. , Andrews Sean M. , Wilner David J. , Bergin Edwin A. , Czekala Ian , Law Charles J. , Salyk Colette , Teague Richard , Qi Chunhua , Bergner Jennifer B. , Huang Jane , Walsh Catherine , Guzmán Viviana V. , Cleeves L. Ilsedore , Aikawa Yuri , Bae Jaehan , Booth Alice S. , Cataldi Gianni , Ilee John D. , Le Gal Romane , Long Feng , Loomis Ryan A. , Menard François , Liu Yao 
Published: March 2024

Abstract
We present MIRI Medium-resolution Spectrograph observations of the large, multi-gapped protoplanetary disk around the T Tauri star AS 209. The observations reveal hundreds of water vapor lines from 4.9–25.5 μm toward the inner ∼1 au in the disk, including the first detection of rovibrational water emission in this disk. The spectrum is dominated by hot (∼800 K) water vapor and OH gas, with only marginal detections of CO2, HCN, and a possible colder water vapor component. Using slab models with a detailed treatment of opacities and line overlap, we retrieve the column density, emitting area, and excitation temperature of water vapor and OH, and provide upper limits for the observable mass of other molecules. Compared to MIRI spectra of other T Tauri disks, the inner disk of AS 209 does not appear to be atypically depleted in CO2 nor HCN. Based on Spitzer Infrared Spectrograph observations, we further find evidence for molecular emission variability over a 10 yr baseline. Water, OH, and CO2 line luminosities have decreased by factors of 2–4 in the new MIRI epoch, yet there are minimal continuum emission variations. The origin of this variability is yet to be understood.
Multiple Jets in the Bursting Protostar HOPS 373SW
Authors: Lee Seokho , Lee Jeong-Eun , Johnstone Doug , Herczeg Gregory J. , Aikawa Yuri 
Published: March 2024

Abstract
We present the outflows detected in HOPS 373SW, a protostar undergoing a modest 30% brightness increase at 850 μm. Atacama Large Millimeter/submillimeter Array observations of shock tracers, including SiO 8–7, CH3OH 7k–6k, and 12CO 3–2 emission, reveal several outflow features around HOPS 373SW. The knots in the extremely high-velocity SiO emission reveal the wiggle of the jet, for which a simple model derives a 37° inclination angle of the jet to the plane of the sky, a jet velocity of 90 km s−1, and a period of 50 yr. The slow SiO and CH3OH emission traces U-shaped bow shocks surrounding the two CO outflows. One outflow is associated with the high-velocity jets, while the other is observed to be close to the plane of the sky. The misaligned outflows imply that previous episodic accretion events have either reoriented HOPS 373SW or that it is an unresolved protostellar binary system with misaligned outflows.
Upstream Plasma Waves and Downstream Magnetic Reconnection at a Reforming Quasi-parallel Shock
Authors: Lu Quanming , Guo Ao , Yang Zhongwei , Wang Rongsheng , Lu San , Chen Rui , Gao Xinliang 
Published: March 2024

Abstract
With the help of a two-dimensional particle-in-cell simulation model, we investigate the long-time evolution (near

100

Ω

i
0

−
1

, where Ω
i0 is the ion gyrofrequency in the upstream) of a quasi-parallel shock. Some of the upstream ions are reflected by the shock front, and their interactions with the incident ions excite low-frequency magnetosonic waves in the upstream. Detailed analyses have shown that the dominant wave mode is caused by the resonant ion–ion beam instability, and the wavelength can reach tens of ion inertial lengths. Although these plasma waves are directed toward the upstream in the upstream plasma frame, they are brought by the incident plasma flow toward the shock front, and their amplitude is enhanced during the approaching. The interaction of the upstream plasma waves with the shock leads to the cyclic reformation of the shock front, and the reformation period is slightly larger than 10

Ω

i
0

−
1

. When crossing the shock front, these large-amplitude plasma waves are compressed and evolve into current sheets in the transition region of the shock. At last, magnetic reconnection occurs in these current sheets, accompanying the generation of magnetic islands. Simultaneously, there still exist plasma waves of another kind, with the wavelength of several ion inertial lengths in the ramp of the shock, which are excited by the nonresonant ion–ion beam instability. The current sheets in the transition region are distorted and broken into several segments when the plasma waves of this kind are transmitted into the downstream, where magnetic reconnection and the generated islands have a much smaller size. No obvious ion flow can be observed around some X-lines produced in the magnetic reconnection, and this implies that electron-only reconnection may occur.