bluuebunny/crossref_metadata_2025_split huggingface dataset:
ПІДВИЩЕННЯ ЕКОЛОГІЧНОЇ БЕЗПЕКИ ЖИТТЄДІЯЛЬНОСТІ РОБІТНИКІВ У ВИРОБНИЧИХ УМОВАХ НА ТЕХНОЛОГІЧНИХ ОПЕРАЦІЯХ АЛМАЗНОГО ШЛІФУВАННЯ
Authors: Новіков Ф. В.  , Новіков Г. В.  
Published: March 2023

У роботі обґрунтовано основні напрями підвищення екологічної безпеки життєдіяльності робітників у виробничих умовах на технологічних операціях алмазного шліфування шляхом застосування екологічно чистої технології електроерозійної правки алмазних кругів на високоміцних металевих зв'язках. Показано, що ця технологія на відміну від традиційно технології абразивної правки виключає утворення абразивного пилу на робочому місці, а на відміну від електрохімічної правки виключає застосування сильних електролитів. Замість них застосовується звичайна технічна вода. Однак, в процесі електроерозійної правки в зоні обробки виникає іскріння, яке небажано для робітника при значному часі правки. Тому в роботі запропоновано нове технічне рішення, яке полягає у використанні ручного ізольованого електроду, що забезпечує короткочасну електроерозійну правку. Це фактично виключає негативний вплив іскріння на органи зору робітника. На цій основі розроблено практичні рекомендації щодо створення екологічно чистих технологій шліфування алмазно-абразивними інструментами на металевих зв'язках виробів, виготовлених із важкооброблюваних матеріалів (твердих сплавів, природних алмазів, керамік, феритів та ін). Це, по-перше, дозволяє виготовляти конкурентоздатну промислову продукцію, а, по-друге, покращує екологічну захищеність робочого місця і виробництва в цілому, підвищує безпеку і працездатність робітника.
РОЗРОБКА МЕТОДУ ПІДВИЩЕННЯ ТОЧНОСТІ ТА ШВИДКОДІЇ ВИМІРЮВАЛЬНИХ КОМПЛЕКСІВ
Authors: Катаєва М.О.  , Квашук Д. М.  
Published: March 2023

У статті визначено перспективні напрямки в метрологічному забезпечені проведення вимірювань у нанометровому діапазоні. Визначено, що для вимірювання механічних властивостей наноструктурованих матеріалів з прив'язкою до рельєфу поверхні найбільш поширеними у застосуванні є вимірювальні комплекси, що поєднують у собі можливості скануючих зондових мікроскопів та нанотвердомірів. Тому актуальною постає задача підвищення точності та швидкодії розпізнавальної системи зондового вимірювального комплексу за рахунок оптимального вибору кількості і розміщення вимірювальних точок на поверхні нанооб’єкта та точок відліку для математичного опису топологічних та фізичних характеристик поверхні. Доведено, що однією з основних проблем, які виникають у процесі вимірювання нанооб’єктів за допомогою зондового вимірювального комплексу є негативний вплив зовнішніх дестабілізуючий факторів, які можуть бути причиною спотворення вимірювальної інформації та отримання недостовірного зображення рельєфу нанооб’єкта. Оскільки всі дестабілізуючі фактори та викликані ними похибки завчасно невідомі і випадковим чином змінюються у часі, можна стверджувати, що ми маємо справу з цілим рядом випадкових функцій часу. На основі проведеного дослідження, розроблено метод оптимального вибору кількості вимірювальних точок для математичного опису випадкового процесу та доведено, що запропонований метод сприяє значному підвищенню точності та швидкодії розпізнавальної системи зондових вимірювальних комплексів при проведені метрологічних робіт в нанометровому діапазоні.
PERFORMA PRODUKSI DAN KUALITAS TELUR AYAM KETARRAS PADA SISTEM PEMELIHARAAN KANDANG BATERAI DAN UMBARAN
Authors: Kususiyah Kususiyah , Kaharuddin Desia , Soetrisno Edi , Dani Muhammad 
Published: March 2023

The aim of the study was to evaluate egg production performance and egg quality of Ketarras chickens in battery and umbaran rearing system. The study used 100 female Ketarras chickens aged 20 weeks; divided into 2 groups of maintenance systems, namely 50 in the battery cage and 50 in the umbaran rearing. The research was conducted at the Commercial Zone and Animal Laboratory (CZAL) Department of Animal Husbandry, Faculty of Agriculture, University of Bengkulu. Variables of production performance include: feed consumption, egg weight, percentage of egg production, egg mass production and feed conversion, while egg quality variables include: sample egg weight, egg index, yolk color, yolk weight, albumen weight, egg shell weight and shell thickness egg. Sampling for observation of egg quality was 100 eggs in each rearing system. Production performance data is discussed descriptively, while egg quality data is analyzed using the t test. The results of the evaluation of production performance showed that feed consumption and feed conversion in battery cages were lower with egg weight, egg production percentage and egg mass production being higher than in umbaran rearing system. The results of the t test showed that the rearing system had no significant effect (t count<t table) on all egg quality variables. It can be concluded that the egg production performance of Ketarras chickens in battery cages is better than in umbaran rearing system without any difference in egg quality.
Keyword : Ketarras Chicken, Rearing System, Performance, Egg Quality
PERSEPSI DAN SIKAP PEKERJA TERHADAP PETERNAKAN AYAM PETELUR MILIK PAK DASMAN DI DESA PAL VIII KECAMATAN BERMANI ULU RAYA KABUPATEN REJANG LEBONG
Authors: Derianti Septian , Sigit Priyono Basuki , Sumantri Bambang 
Published: March 2023

This study aims to (1)Analyzing employee perceptions of Pak Dasman's laying hens farm, (2) Analyzing employee attitudes towards Pak Dasman's laying hens farm(3)Analyze what factors are related to employee perceptions of Pak Dasman's laying hens farm, (4) Analyzing the relationship between employee perceptions and attitudes towards Mr. Dasman's laying hens farm. Determination of the location in this research is done purposively (deliberately). This research was conducted in Pal VIII Village, BermaniUlu Raya District, RejangLebong Regency. Determination of respondents is done intentionally, namely as many as 26 respondents in the farm. The data analysis itself uses Spearman Rank Correlation analysis, Based on the results of the study, it is known that after conducting the Spearman Rank analysis, the following RESULTS were obtained. (1) Workers' perceptions of Pak Dasman's laying hens tend to be quite good (2) he attitude of workers towards Pak Dasman's laying hens farm tends to be quite positive (3) The factors that are significantly related to workers' perceptions of Pak Dasman's laying hens farm are education, expectations and interests, while age and experience have no significant relationship, (4) Perceptions related to the attitude of workers towards Pak Daman's laying hens farm obtained a tcount of 3.395 with a 95% confidence level or t0.05 = 1.1711, it can be concluded that H0 is rejected and Ha is accepted, which means that there is a real relationship between perceptions and attitudes of workers. against the laying hens farm owned by Mr. Dasman.
Keywords: Perception, Attitude, Factors Related To Perception
The Number of Quasi-Trees in Fans and Wheels
Authors: Merino Criel 
Published: March 2023

We extend the classical relation between the $2n$-th Fibonacci number and the number of spanning trees of the $n$-fan graph to ribbon graphs. More importantly, we establish a relation between the $n$-associated Mersenne number and the number of quasi trees of the $n$-wheel ribbon graph. The calculations are performed by computing the determinant of a matrix associated with ribbon graphs. These theorems are also proven using contraction and deletion in ribbon graphs. The results provide neat and symmetric combinatorial interpretations of these well-known sequences. Furthermore, they are refined by giving two families of abelian groups whose orders are the Fibonacci and associated Mersenne numbers.
Coffee Shade Tree Selection Criteria and Management Techniques in Smallholder Coffee-Based Agroforestry System in Gomma Woreda, Southwest of Ethiopia
Authors: Wariyo Zerfu Deresu , Negewo Derejie Adugna 
Published: March 2023

To maintain the balance of productivity and increase coffee yield in the coffee agroforestry system, understanding the selection and management practices of shade trees is crucial. The purpose of this study was to examine shade tree selection factors and farmers management methods in a smallholder coffee-based agroforestry system in Gomma woreda, south-west Ethiopia, along an elevation gradient. Upper, middle, and lower gradients of the elevation were stratified, and two villages were randomly chosen from each elevation group. A total of 115 households were selected for interviews to examine coffee shade tree management practices and selection criteria. Moderated interviews that included both closed- and open-ended questions were administered. The information was gathered on the farmer's understanding and practice with regard to coffee shade tree selection and management. Result found that there is no correction between respondents age, sex and coffee shade management practices in study site. Farmers preferred both indigenous and exotic shade tree species such as 20% Cordia africana, 20% Albizia gummifera, 19%Croton macrostachyus, 5.2% Persea americana, 13% Grevillea robusta, and 3.5% Mangifera indica for coffee shade. Shade tree selection was based on tree height, origin, leaf size, shade quality, and leaf decomposition rate attributes.. Farmers also valued coffee shade trees for other additional ecosystem goods and services such as fruit, timber, construction wood, soil fertility maintenance, fodder, soil, and water conservation. Coffee shade tree provided both economic re-turn and biological conservation in study site.
ANALISIS ARUS KAS DAN PROFITABILITAS UNTUK MENILAI KINERJA KEUANGAN PADA PT. WIJAYA KARYA TBK PERIODE TAHUN 2016-2020
Authors: Khaerunisa Windi , Ciana Regina Felly 
Published: March 2023

This study aims to determine how cash flow and profitability assess financial performance. The object of research is PT. Wijaya Karya Tbk, Data is taken from the financial statements from 2016-2020. This research uses a descriptive qualitative method consisting of three variables: cash flow and profitability as independent variables and financial performance as the dependent variable. Based on the results of data analysis shows that the average cash flow for 5 years is 2.53%. The average profitability for 5 years is 6.13%. Thus, the results of cash flow and profitability to assess average financial performance for the last 5 years, namely, the 2016-2020 period contributed 8.66% and the rest was contributed by other factors not examined in this study.
ABSTRAK
Penelitian ini bertujuan untuk mengetahui bagaimana arus kas dan profitabilitas menilai kinerja keuangan. Objek penelitian adalah PT. Wijaya Karya Tbk, Data diambil dari laporan keuangan tahun 2016-2020. Penelitian ini menggunakan metode kualitatif deskriptif yang terdiri dari tiga variabel yaitu arus kas dan profitabilitas sebagai variabel bebas dan kinerja keuangan sebagai variabel terikat. Berdasarkan hasil analisis data menunjukkan bahwa rata-rata arus kas selama 5 tahun adalah 2,53%. Profitabilitas rata-rata selama 5 tahun adalah 6,13%. Dengan demikian, hasil cash flow dan profitabilitas untuk menilai rata-rata kinerja keuangan selama 5 tahun terakhir yaitu periode 2016-2020 memberikan kontribusi sebesar 8,66% dan sisanya disumbang oleh faktor lain yang tidak diteliti dalam penelitian ini.
DETERMINAN KINERJA KEUANGAN PADA PEMERINTAH KABUPATEN/KOTA DI PROVINSI JAWA TENGAH TAHUN 2015-2019
Authors: Aslindar Dwi Astarani , Hapsari Hening Pratika Nila 
Published: March 2023

Penelitian ini bertujuan untuk menguji pengaruh pendapatan asli daerah, dana alokasi umum dan dana alokasi khusus terhadap kinerja keuangan pemerintah Kabupaten/Kota di Provinsi Jawa Tengah Tahun 2015-2019. Sampel yang digunakan sebanyak 35 Kabupaten/Kota di Jawa Tengah. Pemilihan sampel menggunakan teknik sampling jenuh. Data yang digunakan sebanyak 155 data. Data dianalisis menggunakan regresi linear berganda. Hasil analisis data menunjukkan bahwa pendapatan asli daerah secara partial tidak berpengaruh terhadap kinerja keuangan pemerintah daerah. Sedangkan dana alokasi umum dan dana alokasi khusus masing-masing secara partial berpengaruh terhadap kinerja keuangan pemerintah daerah. Hasil analisis data lainnya menunjukkan bahwa pendapatan asli daerah, dana alokasi umum dan dana alokasi khusus secara simultan berpengaruh terhadap kinerja keuangan pemerintah daerah.This study aims to examine the effect of local revenue, general allocation funds and special allocation funds on the financial performance of district/city governments in Central Java Province in 2015-2019. The sample used was 35 districts/cities in Central Java. Sample selection using saturated sampling technique. The data used are 155 data. Data were analyzed using multiple linear regression. The results of data analysis show that local revenue partially does not affect the financial performance of local governments. Meanwhile, the general allocation fund and the special allocation fund each have a partial effect on the financial performance of local governments. The results of other data analysis show that local revenue, general allocation funds and special allocation funds simultaneously affect the financial performance of local governments
Persepsi Masyarakat Terhadap Penggunaan Finansial Teknologi (Studi Kasus UMKM Kota Medan)
Authors: Wirananda Henny Andriyani 
Published: March 2023

Kajian ini bermaksud untuk mendeteksi efek persepsi manfaat dan persepsi kemudahan atas finansial teknologi UMKM di Kecamatan Medan Amplas, Medan Denai dan Medan Area. Populasi dalam penelitian ini adalah konsumen UMKM di Kecamatan Medan Amplas, Medan Denai dan Medan Area yang jumlah diperkirakan lebih dari 1000 orang. Sampel sebanyak 100 orang. Teknik analisis data menggunakan Analisis regresi berganda, uji parsial, uji simultan dan uji determinasi, sebelumnya dilakukan uji validitas dan reliabilitas serta uji asumsi klasik. Hasil penelitian terbukti secara parsial Persepsi Manfaat dan persepsi kemudahan memberikan efek pada finansial teknologi UMKM di Kecamatan Medan Amplas, Medan Denai dan Medan Area. Secara simultan persepsi manfaat dan persepsi kemudahan atas finansial teknologi. Perolehan dari uji determinasi didapati nilai Adjusted R Square sebesar 0, 756 yang bermakna besarnya dominasi variabel Persepsi Manfaat dan Persepsi Kemudahan atas variabel Finansial Teknologi sebesar 0,756 atau 75,6%, sisanya sebesar 24,4% didominasi oleh variabel yang tidak diamati dalam kajian ini seperti kepercayaan, persepsi risiko dan lain-lain.
OPTIMALISASI PERAN RELAWAN PAJAK DALAM PELAPORAN SPT TAHUNAN DI MASA PANDEMI COVID-19
Authors: Az Nike Aulia Firdiani , Chamalinda Khy'sh Nusri Leapatra 
Published: March 2023

Penelitian ini bertujuan menganalisis peran relawan pajak dalam pelaporan SPT Tahunan di masa pandemi Covid-19. Dalam penelitian ini menggunakan metode kualitatif, paradigma interpretive dengan pendekatan studi kasus. Teknik pengumpulan data yaitu observasi, wawancara, dan dokumentasi. Uji validitas data menggunakan teknik triangulasi sumber dan triangulasi teknik. Hasil penelitian menunjukkan bahwa peran relawan pajak adalah memberikan pendampingan atau asistensi pada wajib pajak orang pribadi yang menggunakan formulir SPT 1770S dan 1770SS melalui e-filing. Peran relawan pajak dioptimalkan semaksimal mungkin pada masa pandemi covid-19. Pasalnya, asistensi SPT Tahunan dilakukan melalui TPT virtual. Relawan pajak juga memberikan edukasi pada wajib pajak dengan harapan dapat mendorong terwujudnya self assessment system. Hambatan yang dialami oleh relawan pajak diklasifikasi menjadi tiga sudut pandang yakni dari sisi sistem, wajib pajak, dan relawan pajak.Kata Kunci: Peran, Relawan Pajak, SPT Tahunan, Pandemi Covid-19 This study aims to analyze the role of tax volunteers in reporting Annual Tax Returns during the Covid-19 pandemic. In this study using qualitative methods, interpretive paradigm with a case study approach. Data collection techniques are observation, interviews, and documentation. Test the validity of the data using source triangulation techniques and triangulation techniques. The results show that the role of tax volunteers is to provide assistance or assistance to individual taxpayers who use the SPT 1770S and 1770SS forms through e-filing. The role of tax volunteers is optimized as much as possible during the COVID-19 pandemic. The reason is, the assistance for the Annual SPT is carried out through a virtual TPT. Tax volunteers also provide education to taxpayers in the hope of encouraging the realization of a self-assessment system. The obstacles experienced by tax volunteers are classified into three points of view, namely from the system side, taxpayers, and tax volunteers. Keywords: Role, Tax Volunteer, Annual SPT, Covid-19 Pandemic
A Statistical Relation between Mass, Age, and Velocity Dispersion in the Solar Neighborhood*
Authors: Fatheddin Hossein , Sajadian Sedighe 
Published: March 2023

Abstract
The stellar kinematics of the Galactic disk are the main factors constraining disk formation and evolution processes in the Milky Way. In this paper, we investigate a statistical relation between stellar mass, age, and velocity dispersion for stars in the solar neighborhood. Age–velocity dispersion relations, with their applications, have been studied in detail before, but their correlation with mass was mostly neglected. To investigate this relation, we use proper motion data of more than 113,035 stars in the Galactic disk (with solar distances less than 150 pc) provided by the third data release of the Gaia mission, and for stellar mass and age, Gaia's Final Luminosity Age Mass Estimator is implemented. We analyze this data and the correlations between the parameters with random forest regression, which is an ensemble statistical-learning technique. Finally, we show that, by considering stellar mass alongside age, we can determine velocity dispersions with an average relative error and a mean absolute error of about 9% and 2.68 km s−1, respectively. We also find that the correlation of stellar age with velocity dispersion is 3–8 times more than mass, which varies due to the different stellar types and masses.
Testing the Radio-selection Method of Dual Active Galactic Nuclei in the Stripe 82 Field
Authors: Gross Arran C. , Fu Hai , Myers A. D. , Djorgovski S. G. , Steffen Joshua L. , Wrobel J. M. 
Published: March 2023

Abstract
We test the merger-induced dual active galactic nuclei (dAGNs) paradigm using a sample of 35 radio galaxy pairs from the Sloan Digital Sky Survey Stripe 82 field. Using Keck optical spectroscopy, we confirm 21 pairs have consistent redshifts, constituting kinematic pairs; the remaining 14 pairs are line-of-sight projections. We classify the optical spectral signatures via emission line ratios, equivalent widths, and excess of radio power above star formation predicted outputs. We find six galaxies are classified as LINERs and seven are AGN/starburst composites. Most of the LINERs are retired galaxies, while the composites likely have AGN contribution. All of the kinematic pairs exhibit radio power more than 10× above the level expected from just star formation, suggestive of a radio AGN contribution. We also analyze high-resolution (0.″3) imaging at 6 GHz from the NSF’s Karl G. Jansky Very Large Array for 17 of the kinematic pairs. We find six pairs (two new, four previously known) host two separate radio cores, confirming their status as dAGNs. The remaining 11 pairs contain single AGNs, with most exhibiting prominent jets/lobes overlapping their companion. Our final census indicates a dAGN duty cycle slightly higher than predictions of purely stochastic fueling, although a larger sample (potentially culled from VLASS) is needed to fully address the dAGN fraction. We conclude that while dAGNs in the Stripe 82 field are rare, the merger process plays some role in their triggering and it facilitates low to moderate levels of accretion.
No Need for Extreme Stellar Masses at z ∼ 7: A Test-case Study of COS-87259
Authors: van Mierlo Sophie E. , Caputi Karina I. , Kokorev Vasily 
Published: March 2023

Abstract
Recent controversy regarding the existence of massive (

log
(

M

*

/

M

⊙

)
≳
11

) galaxies at z > 6 poses a challenge for galaxy formation theories. Hence, it is of critical importance to understand the effects of SED fitting methods on stellar mass estimates of Epoch of Reionization galaxies. In this work, we perform a case study on the AGN host galaxy candidate COS-87259, with spectroscopic redshift z
spec = 6.853, that is claimed to have an extremely high stellar mass of

log
(

M

*

/

M

⊙

)
∼
11.2

. We test a suite of different SED fitting algorithms and stellar population models on our independently measured photometry in 17 broad bands for this source. Between five different code setups, the stellar mass estimates for COS-87259 span

log
(

M

*

/

M

⊙

)
=
10.24

–11.00, while the reduced χ
2 values of the fits are all close to unity within

Δ

χ

ν

2

=
1.2

, such that the quality of the SED fits is basically indistinguishable. Only when we adopt a nonparametric star formation history model within Prospector do we retrieve a stellar mass exceeding

log
(

M

*

/

M

⊙

)
=
11

. Although the derived stellar masses change when using previously reported photometry for this source, the nonparametric SED-fitting method always yields the highest values. As these models are becoming increasingly popular for James Webb Space Telescope high-redshift science, we stress the absolute importance of testing various SED fitting routines particularly on apparently very massive galaxies at such high redshifts.
The Behavior of BpSi Stars in the Far UV—Paper II: HD 9996 (HR 465)
Authors: Monier Richard 
Published: March 2023

Abstract
The analysis of IUE spectra of the B9 SiCrEu star HD 9996 recorded by the SWP and the LWP camera on board the International Ultraviolet Explorer collected at two phases of its very long rotational period (separated by Δϕ = 0.40), reveals large variations of the far and mid ultraviolet flux. The FUV flux seems to vary in opposition with the optical brightness recorded by the Fine Error Sensor near the V band. At ultraviolet maximum, the lines of Mg ii, Cr ii and Fe ii are definitely stronger than at minimum, which suggests that these elements are distributed in a non uniform manner on the stellar disk with large horizontal gradients. However, the changing aspect of the magnetic field between the two rotational phases observed could also cause part of the ultraviolet variability.
Le voile : une autre forme de séduction
Authors: Cherni Sana , Jelizi Sarah , Ben Said Islem 
Published: March 2023

Cette étude ouvre de nouvelles perspectives de compréhension du voile chez les jeunes femmes « arabo-musulmanes » en se basant notamment sur une approche complexe de cet objet, tout en restant ancrée dans une épistémologie psychanalytique. Si le voile était une sorte de compromis entre le désir de plaire et l’interdit sexuel. Si le voile avait une fonction de pare-excitation, en protégeant l’adolescente de ses propres transformations corporelles et pulsionnelles. Si le voile intervenait dans le processus de socialisation en empêchant la chosification de l’adolescente et lui donnant la place d’un sujet. Si le voile permettait de lutter contre la pulsion scopique vécue comme agressive et effractante ? Le voile permettrait-il alors une nouvelle forme de séduction ? À l’aune de ces questionnements, nous posons l’hypothèse que le port du voile sert, entre autres, à lutter contre l’érogénéité de la pulsion scopique ainsi qu’à endiguer les angoisses masculines archaïques.