bluuebunny/crossref_metadata_2025_split huggingface dataset:
ANALISI PENGARUH KUALITAS PELAYANAN DAN HARGA TERHADAP KEPUASAN KONSUMEN PADA JASA AKOMODASI DI DESA TETEBATU
Authors: Laili Jamilatul , Ilhamuddin M. , Adi Permadi Lalu 
Published: November 2023

The impact of service quality and cost on customers' opinions of lodging establishments in Tetebatu Village is the topic of this research. The goal of this research was to determine if there was a correlation between the price and quality of lodgings in Tetebatu Village. Research was conducted in Tetebatu Village with a sample size of 100 people who had stayed in Tetebatu Village lodgings or had at least visited them. Multiple regression analysis was then used to examine the data. Method for analyzing data in SPSS 26. According to the findings of this research, there is a positive and statistically significant relationship between service quality and customer satisfaction 0.000 <0.05 and between pricing and customer satisfaction 0.000 <0.05.
EKSPERIMENTAL STUDI VARIASI PUTARAN SPINDEL TERHADAP KEKASARAN PERMUKAAN MATERIAL BAJA ST-42
Authors: Tentua Benjamin G , Tupamahu Cendy S.E , Silooy Frans 
Published: November 2023

Kualitas permukaan hasil pembubutan dipengaruhi oleh beberapa faktor seperti kecepatan putaran spindel dan pemilihan sudut sisi potong. Tujuan penelitian ini adalah untuk mengetahui berapa besar tingkat kekasaran permukaan pada proses bubut material ST 42. Penelitian ini merupakan penelitian eksperimen menggunakan mesin bubut konvensional Huvema Model HU 460 X 2000 VAC. Material benda kerja adalah ST-42 dengan diameter 25 mm, panjang 80 mm, pahat HSS ¾ x 6. Variasi putaran spindel 275 rpm, 400 rpm, 605 rpm dan sudut sisi potong 75o. Data yang dihasilkan dari proses penelitian dianalisis menggunakan Desain eksperimental. Hasil penelitian menunjukan bahwa pada putaran spindel 605 Rpm menghasilkan nilai rata-rata kekasaran permukaan ( RaTotal) = 4,200 μm, putaran 400 rpm menghasilkan nilai rata-rata ( RaTotal) = 4.471μm dan untuk putaran spindel 273 rpm, menghasilkan nilai rata-rata kekasaran permukaan tertinggi RaTotal) = 6.752 μm. Tingkat kekasaran permukaan yang dicapai putaran 605 rpm dan putaran 400 rpm adalah N8, putaran 275 rpm adalah N10, yang mana masih diizinkan sesuai ISO Roughness Number.
STUDI REGIM ALIRAN FLUIDA DAN PENENTUAN HEAD LOSS AKIBAT GESEKAN PADA INSTALASI PERPIPAAN
Authors: Rumaherang Edwina Jerusalem , Wattimena W. M. E. , Rawulun Sesilia M. , Noya Excelsis 
Published: November 2023

Instalasi perpipaan dalam industry merupakan sistem keteknikan memegang perananan penting yang berfungsi untuk mengalirkan air, minyak dan gas dari satu titik ke titik lain melalui semua komponen yang tercakup didalamnya. Sistem perpipaan terdiri dari pipa lurus, sambungan-sambungan, belokan katup-katup dan peralatan-peralatan instrumentasi yang harus bekerja secara optimal. Regim aliran fluida di dalam berbagai komponen perpipaan memberikan pengaruh terhadap aliran teristimewa pada dua parameter penting yaitu koefesien gesek dan kehilangan head. Tujuan penelitian ini adalah memantau sifat pergerakan fluida dalam rezim laminar dan turbulen dan menentukan nilai head loss sebagai fungsi debit dalam rezim laminar dan turbulen. Penelitian dilakukan pada pipa lurus berdiamater 4 inci dengan panjang total 10 meter, diameter 4 inci dengan satu belokan 90o. Penentuan hubungan kerugian head terhadap debit dilakukan melalui simulasi hidrodinamika, dimana kecepatan aliran divariasi dari 0,02 - 0,1 m/s, sesuai dengan debit Q = 10-52 liter/menit. Variasi kecepatan ini melewati regim aliran laminar dan turbulen yang diukur pada 4 penampang pada pipa lurus dan elbow. Hasil yang diperoleh menunjukan bahwa profil aliran pada setiap penampang berbeda-bada untuk nilai debit Q yang sama. Pada setiap penampang dengan variasi nilai debit Q, karakter nilai kerugian head meningkat dengan meningkatnya debit aliran Q dengan nilai berbeda pada setiap penampang, namun trend perubahannya mirip. Kondisi laminar terjadi pada Q <34 lit/menit dengan kerugian head hdl < 0,74x10-3 m, transisi terjadi pada Q=34-36 lit/menit, dengan hdl = (0,74 -0,68)x10-3 m dan turbulen sepenuhnya pada Q>36 lit/menit dengan hdl > 0,74x10-3 m. Hal ini menujukan bahwa pada elbow atau belokan, aliran akan menjadi turbulen walaupun pada kecepatan yang rendah.
IDENTIFIKASI KENDALA-KENDALA KONEKTIVITAS TRANSPORTASI LAUT DI WILAYAH KEPULAUAN
Authors: Kelwulan Lodewyk Matheos , Soumokil Ruth P. , Manuputty Monalisa 
Published: November 2023

Sistem transportasi geografis berkaitan dengan pergerakan orang, barang dan informasi, yang mencoba mentautkan kendala-kendala dan atribut-atribut spasial dengan titik-titik asal, titik-titik tujuan, jarak, sifat dan tujuan pergerakan. Konektivitas antar pulau menjadi salah satu kendala transportasi geografis untuk pengembangan sistem transportasi laut di wilayah kepulauan. Provinsi Maluku dengan 1.388 pulau dengan infrastruktur transportasi darat terbatas di sebagian besar pulau, mobilitas orang dan barang rendah, memiliki permasalahan konektivitas antar pulau yang cukup rumit. Dengan menggunakan analisis Weighted Arithmetic Mean (WAM) dan analisis statistik diketahui bahwa masalah utama yang dihadapi oleh para pengguna moda transportasi laut di wilayah kepulauan adalah waktu tunggu yang cukup lama di pelabuhan, disamping tidak tersedianya informasi penjadwalan kapal. Ketiadaan kapal pada saat dibutuhkan juga merupakan salah satu masalah utama sistem transportasi antar pulau di wilayah kepulauan
Presencia de Galeno en dos obras del escritor renacentista Antonio de Torquemada: <em>Coloquios satíricos</em> y <em>Jardín de flores</em>
Authors: López Férez Juan Antonio 
Published: November 2023

Este trabajo consiste en una lectura atenta de dos obras de Antonio de Torquemada (Coloquios satíricos y Jardín de flores), pues ha buscado en ellas cualquier cita o referencia respecto a Galeno, uno de los médicos más importantes de la literatura griega. El lector comprobará que no faltan ocasiones en que no se encuentra en el autor griego alguna mención señalada por el escritor leonés. Torquemada, como preceptor de un hijo del Conde de Benavente y, asimismo, Secretario de dicho noble, tuvo a su alcance la bien dotada Biblioteca del mencionado, donde pudo leer desde Leyes y Medicina hasta Farmacología y Sagrada Escritura. No obstante, Torquemada también recurrió con frecuencia a la erudición de segunda mano, echando mano de repertorios variados y polianteas, al modo habitual entre los humanistas de la época.
Data structures for deductive simulation of HDL conditional operators
Authors: Shkil Oleksandr , Miroshnyk Maryna , Rakhlis Dariia , Trifanov Oleh 
Published: November 2023

The subject of research in the article is qubit-vector models for combinational circuits’ description and procedures for faults deductive simulation based on these models. The object of research is the processes of diagnostic support creation for digital systems based on the usage of vector qubit data. The purpose of the work is to increase the speed and quality of diagnostic support creation for digital devices by creating optimal data structures and deductive fault simulation procedures based on structural-functional models of combinational circuits. The following tasks are solved in the article: analysis of concurrent and sequential conditional operators of hardware description languages and schematic structures into which they are synthesized; development of the procedure for the truth tables (Q-vectors) formation for schematic structures presented by HDL; development of an universal data structure for cubic and analytical deductive faults simulation; vector models improvement of qubit representation of structures and components of digital systems based on address coding of input signals to increase the manufacturability and speed of faults simulation; development of the procedure for obtaining Boolean derivatives by permuting the lines of the truth tables (Q-vectors) and using the XOR operation; development of a data structure for deductive fault simulation based on the cubic representation of digital circuit components. The following methods are used: deductive, cubic, deductive-parallel simulation of faults, faults simulation by deductive Q-vectors. The following results were obtained: the equivalence of concurrent and sequential conditional operators, as well as their schematic implementation in the form of multiplexers, was shown; method of obtaining truth tables of the synthesized circuit structure using TestBench (Xilinx ISE) was proposed; different technologies and data structures of deductive fault simulation for tabular, analytical and qubit methods of digital circuits description were considered; the software implementation of faults cubic deductive simulation is considered and the equivalence of the obtained results for the multiplexers circuits (MUX 2-in-1 and MUX 4-in-1) using the DCP software product was demonstrated. Conclusions: a new Q-method of interpretative faults simulation of digital circuit is proposed, which is characterized by the usage of compact Q-vectors instead of truth tables, which makes it possible to significantly increase the analysis speed due to the addressable formation of the functional primitives outputs and reduce the volume of data structures, which practically makes the method competitive with compilative simulation technologies.
Feasibility analysis of implant movement along arc trajectory under non-contact control in magnetic stereotaxic system
Authors: Hunkun Jiao , Avrunin Oleg 
Published: November 2023

In this paper, the non-contact control of magnetic implants by changing the external magnetic field in the magnetic stereotaxic system is introduced, and the feasibility of making them move along the arc trajectory is analyzed. Through COMSOL software, the process of moving the miniature magnetic implant along the arc trajectory was simulated, the change of the micro-magnetic implant trajectory after the external magnetic field was changed, the relative position relationship between the large permanent magnets was determined, and the mechanical analysis of the miniature magnetic implant moving along the arc trajectory was carried out. In this experiment, we fix a large permanent magnet, only move the second permanent magnet, first, observe the process of small permanent magnets moving along a straight trajectory, determine the position of the large permanent magnet magnetic field when it contacts the small permanent magnet, and then, analyze the force of the small permanent magnet through the force calculation module, and determine the relative position relationship between the two large permanent magnets by comparing and , and when the small permanent magnet will start to move along the arc trajectory. Then, according to the previous data, we move two adjacent large permanent magnets at the same time at a certain interval, record the movement trajectory of the small magnet, Finally, with the force calculation module of the COMSOL software, force analysis of small permanent magnets moving along arc trajectories. The data from this experiment will be used to determine the relative position relationship between two large permanent magnets adjacent to each other during the actual experiment, and under what conditions the small permanent magnets will move along the arc trajectory. The purpose of this experiment is to provide theoretical and data support for the subsequent practical experiments of the magnetic stereotactic system, and all parameters in the COMSOL software are derived from the actual measurement data, so as to improve the reliability of the simulation results.
Methods and pathophysiology of rewarming in case of local cold injury. Literature review
Authors: Kravets O. V. , Yekhalov V. V. , Gorbuntsov V. V. , Stanin D. M. , Krishtafor D. A. 
Published: November 2023

Nowadays, rewarming of the affected tissues is the primary method of treatment for patients with cold injuries. But the warming manipulation has its own characteristics and limitations, depending on specific circumstances. Untimely and incorrectly performed rewarming can lead to a significant increase in the level of dangerous complications, mortality, and disability. The rewarming strategy is implemented according to one of the two scenarios. If there is a risk of freezing again, the injured area is not actively rewarmed; it is just immobilized, and thermo‑insulating bandages are applied. Slow warming with body heat is also acceptable. If the frozen area can be warmed and kept warm without refreezing until the evacuation is completed, a quick warming with warm water or special heating blankets is preferable. Recommendations on the ideal water temperature significantly differ among authors and include a wide range between 37 °C and 43 °C.
The extent of damage to the tissues becomes obvious only after thawing. The traditional classification system of local cold injuries distinguishes four degrees of frostbite. First‑degree frostbite presents with superficial damage to the skin; second‑degree frostbite involves deep skin damage; third‑degree frostbite results in full‑thickness skin damage, including the subcutaneous and surrounding tissues; and fourth‑degree frostbite causes deep necrosis of the subcutaneous structures. Depending on the extent of damage, patients may experience constant and severe pain during rewarming, so analgesics should be prescribed to relieve it. It is recommended to use topical agents (creams, gels, and ointments) to improve circulation and prevent and treat infection. Tissue necrosis with severe frostbite requires surgical treatment of wounds.
The authors hope that the provided information will be useful to doctors‑of‑first‑ contact and in hospital conditions in order to optimize the treatment of local cold injuries.
Symbiofauna of the Yakut breed of horses depending on breeding conditions
Authors: Fedorov V. , Sleptsov E. , Machakhtyrov G. , Machakhtyrova V. , Andreyeva M. , Shadrina Ya. , Alferov I. 
Published: November 2023

Purpose: Study of the fauna of endobiontic infusoria according to the types of the Yakut breed of herd horses.Materials and methods. There were studied infusorian fauna of the intestines of the Yansky type horses of the Yakut breed from the Abyisky region (Arctic zone) and horses of the indigenous type from the Amginsky region and the suburbs of Yakutsk (the central zone). The material was collected during the mass slaughter of horses in November-December 2022, directly from the large intestine. The time interval after the slaughter of the horse before sampling was no more than 20-25 minutes. Samples were fixed with 10% formalin solution. The identification of species was carried out according to the guides of Strelkov A. A., 1939 [1] and Kornilova O. A. [2, 3]. Comparison of the species composition of endobiont infusoria of the cattle fauna of the studied breeds was carried out according to the Jacquard-Malyshev similarity coefficient (Kj-m) and the Czekanowski-Sjørensen fauna commonality index (Ics).Results. There has been determined species composition of endobiont infusoria of the Yansky and indigenous type of the Yakut herd horse breed, bred in areas that differ in geographical location in the Arctic and central zones of Yakutia. A total of 15 species of infusoria have been identified. The percentage of occurrence by species ranged from 2,63 % to 13,2 %. The most frequently encountered species were Cycloposthium edentatum, Holophryoides macrotricha, Bundleia elongata, while Cycloposthium dentiferum, Spirodinium confusum, Cycloposthium ponomarevi and Allantosoma intestinale were rare.
Application of the BLUP Animal Model method in assessing the breeding value of the breeding stock of Ayrshire cattle
Authors: Petrova A. , Romanova E. , Vasileva E. 
Published: November 2023

The aim of the study is to assess the breeding value of the breeding stock of Ayrshire cattle from 13 breeding farms in various regions of the Russian Federation using the BLUP Animal Model method.Materials and methods. The analyzed sample included data on 14,450 cows with a first calving date of 1987 – 2021, which were analyzed for identification errors and discrepancies in the dates of birth of parents and offspring. The forecast of the breeding value of cows based on milk productivity traits for 1 lactation was made using the best linear unbiased forecast method BLUP Animal Model using the RStudio program.Results. The dynamics of milk yield EBV values during the studied time period with different numbers of first calving cows was studied. EBV estimates varied not only depending on the level of absolute milk yield of first-calving cows, but also under the influence of factors such as reproduction, the number of herds being assessed, as well as management, by which herds differed.Conclusion. The assessment of breeding value using the BLUP AM method made it possible to reliably evaluate the studied array of animals of the Ayrshire breed breeding stock on farms in the Russian Federation. The best and worst producers in terms of milk yield were identified, taking into account the effects of various factors.
Factors determining sperm fertility
Authors: Maksimova M. , Korochkina E. 
Published: November 2023

The purpose of the work is to to systematize scientific data on factors affecting sperm fertility. Sperm fertility is the ability of a sexually mature organism to reproduce offspring. It is determined by parameters such as sperm motility and the quantity of normal and pathological sperm forms in the ejaculate. The fertility of male producers is acquired in stages: spermatogenesis occurs at the beginning, then the spermatozoa mature in the epididymis. The epididymis plays a significant role in making sperm fertile. Maturation occurs due to a complex of substances produced by the epididymis, and the full maturation of spermatozoa occurs in the genital tract of the female. Thus, fructose, produced by the vesicular glands, affects the fertility of animals. Another substance found in seminal plasma is citric acid, which takes part in the acrosomal reaction. Fertility is influenced by such factors as: the age of the animal, breed, the health of the male's reproductive system, heat stress and others. For instance, as animals age, the number of pathological sperm forms increases in the ejaculate, and their motility decreases. The same happens in cases of inflammatory diseases of the male reproductive system. Changes in the qualitative characteristics of sperm were recorded among Simmental and red breeds, as well as Holstein-Frisian and Jersey breeds. Prolonged or severe heat stress can also have a negative impact on fertility, despite the presence of compensatory mechanisms. These mechanisms are maintained by the presence of sweat glands in the scrotum, which are innervated by sympathetic nerves, as well as a reflex arc between the scrotum and the respiratory center. When the scrotum's temperature rises, respiratory rate increases, facilitating cooling. Furthermore, sperm activity can vary depending on the season. In animals with seasonal reproductive activity, sperm fertility parameters are better during the breeding season.In summary, sperm fertility is a multifactorial process, the success of which is mainly due to the health of the male reproductive system and the presence of many compensatory and adaptive mechanisms.
Comparative characteristics of protocols for cryopreservation of ram semen
Authors: Pushkina V. , Korochkina E. 
Published: November 2023

Purpose: study and comparison of protocols for cryopreservation of sperm of stud rams.Every day the popularity of sheep farming in Russia is increasing, since sheep are unpretentious in maintenance and at the same time they are multiproduct animals, providing the population with the necessary raw materials (wool, felt) and food products (meat, milk). For this reason, artificial insemination is of fundamental importance in the development of this branch of livestock farming, an important part of which is the correct cryopreservation of ram sperm. There are quite a few advantages of using cryopreserved sperm. Cryopreservation of sheep sperm contributes to the spread of the use of artificial insemination in this branch of the livestock industry. Freezing technology largely ensures the preservation of genetic material and its transportation, eliminating geographical barriers in the use of artificial insemination, and allows increasing the load on the ram sire without risk to his reproductive health. However, during the process of cryopreservation, sheep sperm receives irreversible damage due to cold shock, osmotic stress and oxidative processes, which lead to a decrease in the ability to fertilize sperm. Thus, chromatin may be damaged, membrane permeability increased, hyperoxidation and the formation of reactive oxygen species are possible, which affects the ability to fertilize. As a result, frozen ram semen may have low fertility. For this reason, it is extremely important to select an up-to-date freezing and thawing protocol with maximum recovery of viable and functional sperm of a given animal species for successful further use in artificial insemination. Technological advances in various fields of biotechnology have led to improvements in protocols, methods and equipment used in the laboratory, which have a positive impact on the reliability, accuracy of the procedure. This article summarizes research on the effects of different cryopreservation procedures, cooling rates, cooling times and thawing protocols on ram semen quality. In addition, a correct protocol for cryopreservation of Romanov breed sperm was formed, based on the results of our own research.
Development of physical qualities of football players in the training process
Authors: Malynskyi Ihor , Krupenya Svitlana , Haievyi Vadim , Shchyrskyi Vladyslav 
Published: November 2023

In this article, we will look at what is necessary to develop the physical qualities of football players and their further improvement.
Football training, if properly organized, is a powerful means of developing physical qualities that shape the general and special physical fitness and performance of young football players.
In addition, the game of football requires comprehensive training, due to frequently changing game situations associated with a variety of dynamic individual and collective actions.
In Ukraine, despite the great enthusiasm for football, experts point out that the players of the leading Ukrainian clubs lag far behind the best world and European teams in terms of individual technical, tactical and physical fitness. Physical fitness is of particular importance for young football players and the martial law makes it difficult for Ukrainian clubs to hold matches at home, which in turn is another disadvantage, as our players do not feel the proper psychological and moral support that is necessary to fulfill their tasks.
The physical fitness of football players is one of the important components on which the activity and effectiveness of team, group and individual technical and tactical actions depend.
The development of physical qualities in football players has its own characteristics. Speed - the ability of a football player to perform actions in the minimum time for the given conditions for the minimum period of time. Effective means for the development of physical qualities are physical exercises in pairs, and the rest interval between them should be should be optimal for the recovery of the body. By the same means you can to develop speed endurance, but rest intervals should be limited. Such exercises should be included at the beginning of the main part of the training session, followed by exercises to develop endurance and strength.