bluuebunny/crossref_metadata_2025_split huggingface dataset:
Large‐scale 3D fast Fourier transform computation on a GPU
Authors: Lee Jaehong , Kim Duksu 
Published: March 2023

AbstractWe propose a novel graphics processing unit (GPU) algorithm that can handle a large‐scale 3D fast Fourier transform (i.e., 3D‐FFT) problem whose data size is larger than the GPU's memory. A 1D FFT‐based 3D‐FFT computational approach is used to solve the limited device memory issue. Moreover, to reduce the communication overhead between the CPU and GPU, we propose a 3D data‐transposition method that converts the target 1D vector into a contiguous memory layout and improves data transfer efficiency. The transposed data are communicated between the host and device memories efficiently through the pinned buffer and multiple streams. We apply our method to various large‐scale benchmarks and compare its performance with the state‐of‐the‐art multicore CPU FFT library (i.e., fastest Fourier transform in the West [FFTW]) and a prior GPU‐based 3D‐FFT algorithm. Our method achieves a higher performance (up to 2.89 times) than FFTW; it yields more performance gaps as the data size increases. The performance of the prior GPU algorithm decreases considerably in massive‐scale problems, whereas our method's performance is stable.
Uniform K-stability of polarized spherical varieties
Authors: Delcroix Thibaut 
Published: March 2023

We express notions of K-stability of polarized spherical varieties in terms of combinatorial data, vastly generalizing the case of toric varieties. We then provide a combinatorial sufficient condition of G-uniform K-stability by studying the corresponding convex geometric problem. Thanks to recent work of Chi Li and a remark by Yuji Odaka, this provides an explicitly checkable sufficient condition of existence of constant scalar curvature Kahler metrics. As a side effect, we show that, on several families of spherical varieties, G-uniform K-stability is equivalent to K-polystability with respect to G-equivariant test configurations for polarizations close to the anticanonical bundle.Comment: with an appendix by Yuji Odaka, v2 taking into account referee's comments and correcting minor mistakes, v3 EPIGA journal version
ANALYSING SELECTED CEMENT COMPANIES OF INDIA: A LIQUIDITY SCENARIO PERSPECTIVE
Authors: Prabhakar Bhavesh , Japee Gurudutta 
Published: March 2023

Liquidity analysis is an important measure of a company's financial health, as it indicates the ability of the company to meet its short-term obligations. The main objective of these study to analysing selected cement companies of India: a liquidity scenario perspective. For the period 2012-2013 to 2021-2022. The secondary data is used for the research. It has been collected from selected ten cement companies’ annual reports. The used tools & techniques: liquidity ratios analysis (current ratio, quick ratio and cash ratio), descriptive statistics analysis, analysis of variance (ANOVA) and Post-hoc Tukey test. It is concluded that there is a considerable variation in the liquidity ratios of the companies in the cement industry. While some companies have a strong liquidity position (e.g., Ambuja Cements Ltd. Shree Cements Ltd. ACC Ltd.), others have a weaker liquidity position (e.g., The India Cements Ltd., The Ramco Cements Ltd. and Prism Johnson Ltd.). Therefore, it is important to evaluate each company's liquidity position based on its specific circumstances and needs. Overall, the 95% confidence interval for the mean values for all three liquidities ratios. which suggests that the true mean values for all three liquidities ratios for all cement companies in the industry is likely to fall within this range. It is also concluded that all the null hypotheses have not been accepted meaning thereby all alternative hypotheses are accepted. There are significant differences between the current ratio, quick ratio and cash ratio of selected cement companies of India.
Analisis Dana Investasi dan Biaya Pertanggungan terhadap Pendapatan Asuransi Jiwa Syariah
Authors: Rorizki Fitri , Nasution Yenni Samri Juliati 
Published: March 2023

Sharia insurance investment funds consist of money donated by participants and deposited into the tabarru fund by the fund manager, namely the insurance business. Part of the participants' investment funds will be invested in sharia securities that are guaranteed to be halal. The sum insured is the entire amount of money that will be issued or paid by the insurer (insurance company). When the insured (policyholder) submits a claim according to the risk promised in the policy agreement or insurance program, the money is disbursed. This study intends to determine the effect of investment funds and coverage costs on sharia life insurance income at Bumiputera Syariah Life Insurance. This research is a quantitative research that uses secondary data as a data source. Using Eviews version 9, conventional assumption tests and hypothesis tests were used for data analysis. According to the findings of the study, both the variable investment funds and coverage costs have a large impact on Islamic life insurance income.
Keywords: Investment fund, cover cost, Insurance Income, Islamic Insurance
Features of the dynamics of erythrocyte parameters depending on the level of physical activity in adolescence
Authors: Saranchina Yu. V. , Tyukpiekov M. B. , Matveeva E. V. 
Published: March 2023

The object of the study: to study the dynamics of erythrocyte parameters in 2nd and 3rd year students with different levels of physical activity.Materials and methods: the venous blood of 56 students served as the material: 29 girls and 27 boys aged 18 to 22 years. With the help of a questionnaire, all the subjects were divided into 3 groups depending on the level of physical fitness (LPF). The red blood cells (RBC) and mean corpuscular volume (MCV), the concentration of hemoglobin (HGB), hematocrit (HCT), the mean cell hemoglobin (MCH), mean corpuscular hemoglobin concentration (MCHC), the red cell distribution of width (RDW) were determined.Results: the highest values of indicators HGB, RBC and HCT were observed in students with high LPF. The highest values were recorded of the MCV, MCH, MCHC and RDW With an average LPF. High values of HGB, RBC and HCT with high LPF and indicators of the MCV, MCHC and RDW with average LPF prevailed in the 2nd year. Young men had an increase in the values of HGB, RBC, HCT, MCH with low LPF and an increase in MCV and RDW at an average level in the 3rd year. Statistically significant differences were found between the 2nd and 3rd year girls in terms of RDW with an average LPF.Conclusion: with an increase in LPF, there is an increase in erythrocyte parameters. The dynamics of erythrocyte parameters depends on the level of physical activity, gender and the course of study.
Plant and animal protein for muscle mass and strength gains: a systematic review
Authors: Meshtel A. V. , Rybakova P. D. , Miroshnikov A. B. , Vybornov V. D. , Antonov A. G. , Khanferyan R. A. , Korosteleva M. M. 
Published: March 2023

Background: Controversial approaches to studying the effect of proteins of various origins on the functional parameters of human skeletal muscles have led to the erroneous opinion that plant-based protein is a lesser stimulator of muscle mass growth and muscle strength than animal protein. Therefore, the purpose of this systematic review was to actually evaluate the effects of plant and animal protein intake on muscle mass and strength through studies comparing protein supplements.Methods: Literature search was carried out in the databases PubMed, Research Gate and the database of the Russian State Library. Studies were considered both in English and in Russian, over the past 20 years, filtered by date: from July 2002 to July 2022. Inclusion Criteria: Participants are healthy men and women over 18 years of age; taking protein supplements from plant products (soy, wheat, pea, rice, etc.); comparison with a group taking protein supplements from animal products (whey, beef, egg, etc.); studies assessed lean and/or muscle mass and assessed participants' muscle strength before and after supplementation; randomized controlled trial.Results: A total of 970 studies were found. After initial screening for title and abstract, 938 studies were excluded. Of the 32 publications selected, 5 duplicates were excluded, and after a secondary selection, 18 studies that did not meet the PICOS criteria were excluded. As a result of the search and selection, the review included 9 publications.Conclusions: Athletes and active individuals who prefer to consume plant-based protein products may not be inferior in terms of muscle strength and muscle mass to those athletes who prefer animal-based protein products. To further explore this topic, more randomized controlled trials should be conducted, taking into account the requirements for standardization and with a large number of participants.Registration: PROSPERO 2022 CRD42022345245
Practical guidelines for standardising the measurement of resting metabolism by indirect calorimetry: a literature review
Authors: Antonov A. G. , Vybornov V. D. , Balandin M. Y. , Rybakova P. D. , Badtieva V. A. , Nikityuk D. B. 
Published: March 2023

Accurate resting metabolic rate readings are essential for dietary planning and body composition monitoring not only for healthy individuals but also for athletes. A number of factors can alter resting metabolic rate during its measurement by indirect calorimetry. The methodology used may affect the results of the study. A clear standardisation of this procedure is needed to obtain the most accurate results.Purpose: To review the literature to determine the optimal subject condition and methodology for the resting metabolism measurement procedure using indirect calorimetry.Materials and methods: A literature search was conducted in PubMed, MEDLINE and Cochrane Library databases. The query included key words and logical phrases: “calorimetry”, “indirect calorimetry”, “resting metabolic rate”, “energy metabolism”, “basal metabolism”, “standards”. Only Englishlanguage studies and human studies were considered. Additional information was identified because of the review and included in the review.Results: the parameters of standardization during the resting metabolism measurement procedure are described: consumption of food, ethanol, caffeine, nicotine; daily activities and physical activity; body position in space and environmental conditions during the measurement; actions of the specialist performing the procedure, etc. The article outlines effective methods for measuring resting metabolism to obtain the most accurate results in both athletes and non-athletes.Conclusion: an attempt has been made to formulate precise methodological rules for standardization and recommendations for measuring resting metabolism by indirect calorimetry.
Features of carnitine metabolism in young athletes
Authors: Samoilov A. S. , Zholinsky A. V. , Rylova N. V. , Bolshakov I. V. 
Published: March 2023

Objective: to study the indicators of carnitine metabolism in young athletes of various specializations.Materials and methods: This study involved 46 people with different levels of physical activity aged 15 to 18 years. The first group consisted of 18 girls professionally involved in field hockey (mean age, 16.17 ± 0.31 years). The second group included 21 swimmers (10 girls and 11 boys, mean age 17.00 ± 0.26 years). The control group included 7 young men with a standard mode of motor activity, not involved in sports (the age of the subjects was 16 years). In the course of the study, the method of liquid tandem chromatography-mass spectrometry with ionization in an electrospray was used. The material for research is capillary blood. As a result of the analysis of the material, the concentrations of bound carnitine (acylcarnitines) and free carnitine were determined in µmol/l.Results: Comparative blood analysis between the three groups showed differences in free carnitine levels. It was shown that the concentration of free carnitine in the blood plasma of field hockey athletes was significantly lower than in the groups of swimmers and non-athletes (p < 0.001). At the same time, the values of indicators of bound carnitine did not differ significantly between all subjects. We also studied that the values of the carnitine coefficient were significantly higher in the group of hockey players compared to other groups (p < 0.001).Conclusion: The decrease in free carnitine levels in the group of hockey players is probably the result of long-term adaptation of the body to conditions in which glucose is the main energy substrate for working muscles. Further studies are needed to clarify the exact mechanisms of development of this phenomenon.
Prevención de nefritis lúpica en pacientes con lupus eritematoso sistémico que reciben tratamiento con hidroxicloroquina
Authors: Orellana Tapia Bryan Andrés , Cordero Neira Adriana Pamela , Campaña Zúñiga Otto Vicente 
Published: March 2023

Introducción: El lupus es una patología sistémica autoinmune crónica, la nefritis lúpica es el resultado de la afectación renal del lupus eritematoso sistémico y es la principal causa de falla renal en este grupo de pacientes. La Hidroxicloroquina es un fármaco antipalúdico con eficacia en varias patologías como coagulopatías, diabetes mellitus, patologías de carácter infeccioso, neoplasias, así como en enfermedades autoinmunes como artritis reumatoide, síndrome de Sjogren y Lupus eritematoso sistémico. La nefritis lúpica es una de las consecuencias más graves del LES, y la HCQ ayuda a la recuperación de la tasa de filtración glomerular y además de la reducción del riesgo de progreso a una enfermedad renal terminal. Objetivo: Analizar la prevención de nefritis lúpica en pacientes con Lupus Eritematoso Sistémico que reciben tratamiento con Hidroxicloroquina. Materiales y métodos: Se realizó una búsqueda en Scielo, PubMed y ScienceDirect con palabras clave que constan en el descriptor de Ciencias de Salud (DeCS) y en Medical Subject Heading (MeSH), se utilizó artículos que cumplan con los criterios de inclusión, y después se procedió a buscar la revista en la cual fueron publicados en Scimago. Conclusiones: Se indica la administración de hidroxicloroquina en pacientes con LES, así como en pacientes con nefritis lúpica ya que disminuye el riesgo de progreso hacia una enfermedad renal terminal, así como recupera la tasa de filtración glomerular. Este fármaco tiene una actividad inmunomoduladora y antiinflamatoria, y ayuda a la prevención de desarrollar una nefritis lúpica en pacientes con LES.
Weltgrößter Versuch mit Urgetreide
Authors: Schultz Olaf 
Published: March 2023

Frankfurt a.M. Beim Anbau von Einkorn sollte der Fokus auf einen sicheren Ertrag gelegt werden. Auch die Verarbeitung erfordert ein gewisses Know-how, wie Wissenschaftler der Uni Hohenheim in ihren Untersuchungen bestätigen.
Spiritualitas Keugaharian: Sebagai Respons Terhadap Pola Hidup Hedonisme Di Era Digital
Authors: Astuti Endang Sri Budi 
Published: March 2023

Abstract Religious Spirituality: as a response to the hedonistic lifestyle in the digital era. Life in this digital era has so many changes that occur because of the changing times caused by the very significant development of digital technology. Along with the rapid changes due to the development of digital technology, the life or lifestyle of Christian students has so also undergone many changes. The lifestyle adopted by most Christian students is no longer a life of simplicity but a lifestyle in a hedonistic culture. The lifestyle that a Christian student needs to implement is a modest lifestyle. Ugahari life is a life ini simplicity and according to need, not to splurge to reap praise. Jesus Christ has set an example for us to live in modesty. This journal was written with the aim of providing an understanding of the simple life as a Christian student and as God’s people by imitating Jesus Christ. The result that can be achieved from this writing is the lifestyle of Christian students. AbstrakSpiritualitas Keugaharian: Sebagai Respons Terhadap Pola Hidup Hedonisme Di Era Digital. Pada kehidupan di era digital ini begitu banyak perubahan yang terjadi karena perubahan zaman yang disebabkan perkembangan teknologi digital yang sangat signifikan. Seiring pesatnya perubahan akibat perkembangan teknologi digital makan kehidupan atau gaya hidup mahasiswa Kristen juga mengalami banyak perubahan. Gaya hidup yang diterapkan oleh kebanyakan mahasiswa Kristen bukan lagi hidup dalam kesederhanaan melainkan gaya hidup dalam budaya hedonisme. Gaya hidup yang perlu diterapkan oleh seorang mahasiswa Kristen adalah gaya hidup ugahari. Hidup ugahari merupakan hidup dalam kesederhanaan serta rasa cukup. Memenuhi kehidupan sesuai kebutuhan bukan untuk berfoya-foya untuk menuai pujian. Yesus Kristus telah memberikan teladan bagi kita hidup dalam keugaharian. Jurnal ini ditulis dengan tujuan memberi pengertian tentang hidup ugahari sebagai seorang mahasiswa Kristen dan sebagai umat Allah dengan meneladani Yesus Kristus. Hasil yang dapat dicapai dari penulisan ini adalah pola hidup keugaharian mahasiswa Kristen.
"Smart" infrastructure
Authors: Волков Д. 
Published: March 2023

Турбулентность в мировом экономическом пространстве, подогреваемая санкционной риторикой, наглядно продемонстрировала, что обладание ресурсами: природными, интеллектуальными и индустриальными еще не гарантирует устойчивого развития — важнейшую роль сегодня играет инфраструктура доставки продукта или услуги до конечного потребителя.
Turbulence in the worldwide economic space, fueled by sanctions rhetoric, clearly demonstrated - the possession of resources: natural, intellectual and industrial does not yet guarantee sustainable prosperity of any state.
PostgreSQL Ins and Outs
Authors: Волков Д. 
Published: March 2023

В помощь специалистам, знакомым с устройством реляционных СУБД, планирующим переход на PostgreSQL, издательство «ДМК Пресс» выпустило книгу «PostgreSQL 15 изнутри».
The exodus of western IT vendors from Russia has led to shrinkage of local enterprise database market. The way out is PostgreSQL, with major Russian financial and industrial corporations having migrated to the database without waiting for imported software products to “turn into a pumpkin”. However, it is no typical task for a corporation to maintain an opensource solution, tracking its development and ensuring guaranteed reliability of the system-level code. For PostgreSQL, those tasks are handled by Postgre Professional, a company offering the Postgres Pro database that is included into the Unified Registry of Russian Software Products.
Elucidating ozone and PM2.5 pollution in the Fenwei Plain reveals the co-benefits of controlling precursor gas emissions in winter haze
Authors: Lin Chunshui , Huang Ru-Jin , Zhong Haobin , Duan Jing , Wang Zixi , Huang Wei , Xu Wei 
Published: March 2023

Abstract. The Fenwei Plain, home to 50 million people in
central China, is one of the most polluted regions in China. In 2018, the Fenwei
Plain was designated as one of the three key regions for the “Blue Sky
Protection Campaign”, along with the Beijing–Tianjin–Hebei (BTH) and
Yangtze River Delta (YRD) regions. However, compared to BTH and YRD, our
understanding of the current status of air pollution in the Fenwei Plain is
limited partly due to a lack of detailed analysis of the transformation from
precursor gases to secondary products including secondary organic aerosol
(SOA) and ozone. Through the analysis of 7 years (2015–2021) of surface
monitoring of the air pollutants in Xi'an, the largest city in the Fenwei
Plain, we show that roughly two-thirds of the days exceeded either the PM2.5 or the O3 level-1 air quality standard, highlighting the severity of
air pollution. Moreover, an increase in O3 pollution in the winter
haze was also revealed, due to the constantly elevated reactive oxygenated
volatile organic compounds (OVOCs), in particular formaldehyde, with
an ozone formation potential of over 50 µg m−3, in combination with
the reduced NO2. The abrupt decrease of NO2, as observed during
the lockdown in 2020, provided real-world evidence of the control measures,
targeting only NOx (70 % decrease on average), and were insufficient to
reduce ozone pollution because reactive OVOCs remained constantly high in a
volatile organic compound (VOC)-limited regime. Model simulation results showed that with NO2
reduction from 20 %–70 %, the self-reaction rate between peroxy radicals, a
pathway for SOA formation, was intensified by up to 75 %, while the
self-reaction rate was only reduced with a further reduction of VOCs of
> 50 %. Therefore, a synergic reduction in PM2.5 and
O3 pollution can only be achieved through a more aggressive reduction
of their precursor gases. This study elucidates the status of ozone and
PM2.5 pollution in one of the most polluted regions in China, revealing
a general trend of increasing secondary pollution, i.e., ozone and SOA in
winter haze. Controlling precursor gas emissions is anticipated to curb both
ozone and SOA formation, which will benefit not just the Fenwei Plain but
also other regions in China.
Air–sea gas exchange in a seagrass ecosystem – results from a 3He ∕ SF6 tracer release experiment
Authors: Dobashi Ryo , Ho David T. 
Published: March 2023

Abstract. Seagrass meadows are some of the most productive ecosystems in the world and could help to mitigate the increase of atmospheric CO2 from human activities. However, understanding the role of seagrasses in the global carbon cycle requires knowledge of air–sea CO2 fluxes and hence knowledge of the gas transfer velocity. In this study, gas transfer velocities were determined using the 3He and SF6 dual tracer technique in a seagrass ecosystem in south Florida, Florida Bay, near Bob Allen Keys (25.02663∘ N, 80.68137∘ W) between 1 and 8 April 2015. The observed gas transfer velocity, normalized for CO2 in
freshwater at 20 ∘C, k(600), was 4.8 ± 1.8 cm h−1, which was lower than that calculated from published wind speed/gas exchange parameterizations. The deviation in k(600) from other coastal and offshore regions was only weakly correlated with tidal motion and air–sea temperature difference, implying that wind is the dominant factor driving gas exchange. The lower gas transfer velocity was most likely due to wave attenuation by seagrass and limited wind fetch in the study area. A new wind speed/gas exchange parameterization is proposed (k600=0.143u102), which might be applicable to other seagrass ecosystems and wind-fetch-limited environments.