bluuebunny/crossref_metadata_2025_split huggingface dataset:
ประสิทธิภาพการดำเนินงานของอุตสาหกรรมการบินในประเทศไทย: มุมมองจากผู้บริหาร
Authors: แพทย์รังษี นิสรา , จักรทอง ชฎาพร , เสาเกลียว เสาวรจนีย์ , วงศ์ประคอง ปภาพัศร์ 
Published: October 2024

ภูมิหลังและวัตถุประสงค์: กลยุทธ์สำหรับสายการบินในการเพิ่มประสิทธิภาพการดำเนินงานด้านการจัดการทรัพยากรให้เกิดประโยชน์สูงสุด เช่น การใช้เครื่องบิน การบริหารบุคลากร การใช้เทคโนโลยีเพื่อลดระยะเวลาในการปฏิบัติงานและปรับปรุงกระบวนการบริการลูกค้า ช่วยปรับปรุงประสิทธิภาพภายในองค์กร นอกจากนี้ สายการบินต้องดำเนินงานให้สอดคล้องกับกฎระเบียบด้านการบินที่เข้มงวดเพื่อหลีกเลี่ยงปัญหาด้านความปลอดภัยและกฎหมาย งานวิจัยนี้มีวัตถุประสงค์เพื่อวิเคราะห์กลยุทธ์การปฏิบัติการของสายการบินในประเทศไทยจากมุมมองของผู้บริหารระดับสูง
ระเบียบวิธีการวิจัย: ดำเนินการวิจัยโดยใช้วิธีการสัมภาษณ์เชิงลึกกับผู้บริหารในสายการบินและอุตสาหกรรมที่เกี่ยวข้องกับธุรกิจการบิน ข้อมูลที่ได้ถูกนำมาวิเคราะห์เชิงเนื้อหาและเชิงเปรียบเทียบ เพื่อให้เข้าใจถึงบทบาทของกลยุทธ์การปฏิบัติการต่าง ๆ เช่น การปฏิบัติการภาคพื้นดิน การจัดการลูกเรือ การบำรุงรักษา และการปฏิบัติตามกฎระเบียบ
ผลการวิจัย พบว่า กลยุทธ์การปฏิบัติการที่มีประสิทธิภาพมีบทบาทสำคัญในการเพิ่มประสิทธิภาพการดำเนินงานและความสามารถในการแข่งขันของสายการบินในประเทศไทย การบริหารงานบริการภาคพื้นดินที่มีประสิทธิภาพช่วยเพิ่มความพึงพอใจของลูกค้าและลดเวลาการรอคอย การฝึกอบรมและการจัดการเวลาพักผ่อนของลูกเรือช่วยเพิ่มความพร้อมและความปลอดภัยในการปฏิบัติงาน การบำรุงรักษาเชิงป้องกันและการใช้เทคโนโลยีขั้นสูงช่วยลดความเสี่ยงด้าน operations และเป็นเหตุให้ต้องยกเลิกเที่ยวบิน และการปฏิบัติตามกฎระเบียบข้อบังคับของสํานักงานการบินพลเรือนแห่งประเทศไทยอย่างเคร่งครัดช่วยรักษาความปลอดภัยและสร้างความเชื่อมั่นให้ผู้โดยสาร ผู้บริหารยังชี้ให้เห็นถึงความท้าทายที่เกิดขึ้นในการดำเนินกลยุทธ์ เช่น การขาดแคลนบุคลากรที่มีทักษะและการปรับตัวให้เข้ากับการเปลี่ยนแปลงของเทคโนโลยีและกฎระเบียบ
สรุปผล: กลยุทธ์หลักจากมุมมองผู้บริหารแสดงให้เห็นว่า การบริการภาคพื้นดินที่รวดเร็ว ตรงเวลา และการบริการอย่างมืออาชีพของลูกเรือส่งผลต่อความพึงพอใจของลูกค้า การใช้เทคโนโลยีในงานซ่อมบำรุงช่วยลดความเสี่ยงและการยกเลิกเที่ยวบิน การปฏิบัติตามกฎระเบียบส่งผลต่อความปลอดภัยและความไว้วางใจของผู้โดยสาร ผลการวิจัยนี้สามารถนำไปใช้เป็นแนวทางในการปรับปรุงกลยุทธ์การปฏิบัติการของสายการบินในประทศไทยให้มีประสิทธิภาพมากยิ่งขึ้น ส่งเสริมการเติบโตของธุรกิจ และเพิ่มความสามารถในการแข่งขันในตลาดโลก
Оптимизация наклонно-направленного бурения на основе геомеханического моделирования с использованием сейсмических данных
Authors: Е.А. РОЖЕНКОВ , В.И. РЫЖКОВ 
Published: October 2024

В работе рассмотрен способ расчета оптимальной траектории ствола скважины на основе модели механических свойств (ММС), построенной с использованием результатов сейсмической амплитудной инверсии. На примере субвертикально и наклонно-направленного стволов скважин на одном из месторождений Центрального и Восточного Предкавказья показаны возможные причины большого количества осложнений при бурении в глинистых и карбонатных формациях. Представлены рекомендации по стабилизации ствола скважины за счет параметров бурения (плотности бурового раствора и зенитного угла).
The paper discusses a method for calculating the optimal wellbore trajectory based on a mechanical properties model (MPM) constructed using the results of seismic amplitude inversion. Using the example of a subvertical and directional wellbore at one of the fields in the Central and Eastern Ciscaucasia, possible causes of a large number of complications during drilling in clay and carbonate formations are shown. Recommendations for stabilizing the wellbore using drilling parameters (drilling mud density and zenith angle) are presented.
Pengaruh Perencanaan dan Pengembangan Sumber Daya Manusia Terhadap Kinerja Karyawan PT Pegasus Mitra Abadi
Authors: Fauziyah Syifa , Rani Rani 
Published: October 2024

Perencanaan dan pengembangan sumber daya manusia sangat penting bagi perusahaan untuk meningkatkan kinerja karyawan. Tujuan penelitian ini untuk mengetahui dan menganalisis perencanaan dan pengembangan sumber daya manusia berpengaruh positif dan signifikan secara parsial dan simultan terhadap kinerja karyawan PT Pegasus Mitra Abadi Jakarta. Data primer dan data sekunder adalah dua teknik pengumpulan data yang digunakan dalam penelitian. Teknik pengumpulan data yang dilakukan dengan melakukan penyebaran kuesioner kepada karyawan PT Pegasus Mitra Abadi yang berjumlah 35 responden dengan menggunakan Statistical Program for Social Science (SPSS) for windows versi 20.0. Selain itu pengumpulan data dilakukan menggunakan observasi, wawancara dan dokumentasi. Dalam penelitian ini, pendekatan yang digunakan yaitu dengan pendekatan sampel jenuh. Hasil dari penelitian menujukkan bahwa perencanaan (????1) secara parsial berpengaruh positif dan signifikan terhadap kinerja karyawan (Y) dengan nilai 2,817 > 2,035 dan nilai Sig. 0,008 < 0,05, pengembangan sumber daya manusia (????2) secara parsial berpengaruh positif dan signifikan terhadap kinerja karyawan (Y) dengan nilai 3,625 > 2,035 dan nilai Sig. 0,001 < 0,05. Secara simultan menunjukkan perencanaan (????1) dan pengembangan sumber daya manusia (????2) terdapat pengaruh positif dan signifikan terhadap kinerja karyawan (Y) dengan nilai 29,366 > 3,29 dan nilai Sig. 0,000 < 0,05.

Human resource and development is very important for companies to improve employee performance. The research is to determine and analyze human resource planning and development which has a partial and simultaneous positive and significant effect on the performance of PT Pegasus Mitra Abadi Jakarta. Primary data and secondary data are two data collection techniques used in research. The data collection technique was carried out by distributing questionnaires of PT Pegasus Mitra Abadi totaling 35 respondents using the Statistical Program for Social Science (SPSS) for Windows version 20.0. Apart from that, data collection was using observation, interviews and documentation. In this research, the approach used is a saturated sample approach. The results of the research show that planning (????1) partially has a positive and significant on employee performance (Y) with a value 2,817 > 2,035 and Sig value 0,008 < 0,05, human resource (????2) partially has a positive and significant on employee performance (Y) with value 3,625 > 2,035 and Sig value 0,001 < 0,05. Simultaneous shows that planning (????1) and human resource (????2) have a positive and significant on employee performance (Y) with a value 29,366 > 3,29 and Sig value 0,000 < 0,05.
Pengaruh Beban Kerja dan Disiplin Kerja Terhadap Kinerja Karyawan SMK Dewi Sartika Jakarta Barat
Authors: Farhana Siva Nissa , Rani Rani 
Published: October 2024

Di dunia Pendidikan, guru sangat penting dalam menyampaikan pengetahuannya kepada siswanya. Sementara itu, disiplin kerja penting untuk mencapai kesuksesan sedangkan beban kerja yang terlalu banyak akan menghambat efektivitas kinerja karyawan. Tujuan penelitian untuk mengetahui dampak positif dan signifikan secara parsial maupun simultan antara beban kerja dan disiplin kerja terhadap kinerja karyawan. Metode penelitian menggunakan kuesioner, observasi, wawancara dan dokumentasi. Pendeketan penelitian ini menggunakan sampling jenuh dikarenakan jumlah sampel 30 orang dan untuk analisa datanya menggunakan Statistical Program for Social Science SPSS versi 20.0. Hasil penelitian menunjukkan beban kerja berpengaruh positif dan signifikan terhadap kinerja karyawan dengan nilai Thitung 2,457 > Ttabel 2,052 dan nilai Sig < 0,05, hasil disiplin kerja berpengaruh positif dan signifikan terhadap kinerja karyawan dengan nilai Thitung 5,529 > Ttabel 2,052 dan nilai Sig < 0,05. Secara simultan beban kerja dan disiplin kerja berpengaruh positif dan signifikan terhadap kinerja karyawan dengan nilai Fhitung > Ftabel dan nilai sig < 0,05.

In the world of education, teachers are very important in conveying their knowledge to their students. Meanwhile, work discipline is important to achieve success, while too much workload will hinder the effectiveness of employee performance. The aim of the research is to determine the partial or simultaneous positive and significant impact of workload and work discipline on employee performance. The research method uses questionnaires, observation, interviews and documentation. This research approach used saturated sampling because the sample size was 30 people and for data analysis used the Statistical Program for Social Science SPSS version 20.0. The research results show that workload has a positive and significant effect on employee performance with a T count 2,457 > T table 2,052 and a Sig value < 0.05, the results of work discipline have a positive and significant effect on employee performance with a T count 2,457 > T table 2,052 and a Sig value < 0.05. Simultaneously, workload and work discipline have a positive and significant effect on employee performance with Fcount > Ftable and sig < 0.05.
Evaluation of the Effect of Gum Arabic on the Histological and Physiological Changes in the Liver of Albino Rats Exposed to Bisphenol A
Authors: Saleh Asia Ibrahim , Abdulhadi Loay H. Ali, Haitham L. 
Published: October 2024

We designed this work in order to study the protective effect of aqueous extract of gum arabic (GA) from oxidative damage induced by bisphenol A(BPA). This study was conducted on 35 male laboratory Albino rats of Sprague Dawley strain (165-210 grams) and divided into five groups. Each group included 7 rats. The experiment was performed at the animal house of Biology (College of Education for Pure Sciences).
The experiment continued for 90 days under conditions Standard laboratory, as follows: The first group was the control; the second group had GA taken orally; the third group had BPA taken orally; the fourth group had GA taken first, followed by BPS, and the fifth group had BPA taken first, followed by GA. According to the above results clearly, Serum levels of AST, ALT and Lipid profile (Cholesterol, Triglyceride) indicated a highly significant increase in these parameters at group 3, While the fourth and fifth groups show significant reductions in AST, ALT, cholesterol, triglycerides, and MDA, also significant increases in GSH levels, While the histological changes in the third group were represented by the presence of a state of blood congestion with depletion of glycoprotein and degeneration of some cells, in addition to the presence of a state of necrosis of liver cells, while it was not observed severe histological changes when compared to third group in both fourth and fifth groups. In Short, the above results indicated that GA treatment for BPA-induced liver injury had Therapeutic effect through anti-free radical formation and functional role as free scavenger.
Metagenomic Analysis of Microbial Diversity in the Urban Air of Sofia (Bulgaria) during Spring and Winter
Authors: Angelova Boyanka , Iliev Mihail 
Published: October 2024

The main scientific interest for decades remained focused primarily on physical and chemical air pollutants, which severely limited our knowledge of microbial diversity in the atmosphere. The ecology of airborne microorganisms is poorly understood, even though they are a constant element of the air we breathe. Their exploration is very important for understanding health and ecological impacts, mainly in the highly urbanized cities. The main purpose of this study is to explore the biodiversity of microorganisms in the atmosphere over the densely populated centre of Sofia (Bulgaria) during spring and winter by Next-generation sequencing. The results showed that the most prevailing bacteria in the urban bioaerosols were representatives of phyla Firmicutes, Proteobacteria, Bacteroides, Actinobacteria. Many of the identified species were soil and leaf surface dwellers. Most of the detected fungal sequences belong to the phylum Ascomycota. Some pathogenic bacterial and fungal taxa were also found. This study provides the first information about microbial diversity in the outdoor air above Sofia and contributes to better understanding of urban airborne microbiota.
Histological and Biochemical Effects of Lutein on Paraquat-induced Renal Toxicity in Wistar Rats
Authors: Adefola Edward Tolulope , John Ajibade Adeshina , Sunday Edward Sylvester , Ugochukwu Umeaku 
Published: October 2024

Introduction: Paraquat (PQ) poisoning in humans predominantly results from the generation of reactive oxygen species (ROS). To date, no proven antidote exists for PQ poisoning, which is characterized by severe kidney injury and high mortality rates globally. However, free radical scavengers and antioxidant agents have shown potentials to mitigate PQ toxicity.
Aim: The study is aimed at investigating lutein, an antioxidant, for possible mitigation of paraquat-induced renal toxicity.
Study Design: Preclinical experimental study.
Place and Duration of Study: Department of Anatomy, Obafemi Awolowo University (OAU), Nigeria, between 2022 and 2023.
Methods: Forty wistar rats weighing 150-180 grammes were randomly grouped (A to E) for this study. Paraquat (PQ) toxicity was induced in groups B to E. Lutein was administered at graded doses of 50 mg/kg, 100 mg/kg and 150 mg/kg to groups C to E for twenty-one days respectively. Group A (positive control) was given only normal saline, while group B had paraquat only. Twenty-four hours after the last administration, urine and blood samples were collected and the animals were sacrificed before the excision of the kidneys.
Results: A marked histological distortion, which was characterized by compromised Bowman's space and renal tubule dimensions, was observed in Group B. In contrast, the lutein-treated groups exhibited dose-dependent improvements, with outcomes comparable to the control group. Notably, Group B showed significant elevations in plasma creatinine (P = 0.003) and urine protein (P = 0.001), accompanied by reduced plasma protein (P = 0.004), relative to the treated groups. However, Group E, which received the highest lutein dose, demonstrated substantial improvement in histoarchitectural and biochemical findings similar to the control group."
Conclusion: This study demonstrated significant alterations in the histoarchitecture and biochemical profiles of renal tissue following paraquat exposure. Notably, the lutein-treated groups exhibited substantial improvement, with results comparable to the control group. These findings suggest that lutein may possess potential therapeutic properties to mitigate paraquat-induced renal toxicity.
Effect of Iron and Zinc Fertilization on Growth and Yield of Mustard (Brassica juncea L.) in Loamy Sand
Authors: Patel Jinal A. , Patel J. M. , Patel K. K. , Singh Praveen 
Published: October 2024

A field experiment was conducted during rabi 2022-23 at Agronomy Instructional Farm, Chimanbhai Patel College of Agriculture, Sardarkrushinagar Dantiwada Agricultural University, Sardarkrushinagar. The soil of the experimental field was loamy sand in texture, neutral to alkaline in reaction, normal with respect to salt content, low in available nitrogen and sulphur, medium in available phosphorus, potash, zinc and iron and high in manganese and copper. Nine treatment combinations comprising three levels of iron 0.0 kg Fe ha-1 (Fe0), Soil application of 20.0 kg FeSO4. 7H2O ha-1 (Fe1) and 0.5 % FeSO4. 7H2O foliar spray at 30 and 45 DAS (Days after sowing) (Fe2) and three levels of zinc 0.0 kg Zn ha-1 (Zn0), Soil application of 10.0 kg ZnSO4. 7H2O ha-1 (Zn1) and 0.5 % ZnSO4. 7H2O foliar spray at 30 and 45 DAS (Zn2) were evaluated in randomized block design with factorial concept with four replication. Mustard variety GDM 4 was used as a test crop.
Significantly higher number of secondary branches plant-1 (16.59), number of siliquae plant-1 (341.4), test weight (5.18 g), seed yield (2061 kg ha-1) and stover yield (4976 kg ha-1) were recorded with soil application of 20.0 kg FeSO4. 7H2O ha-1 (Fe1) but it was at par with 0.5 % FeSO4. 7H2O foliar spray at 30 and 45 DAS. Stover yield of mustard remained at par with 0.5 % FeSO4. 7H2O foliar spray at 30 and 45 DAS.
Significantly higher number of secondary branches plant-1 (16.37), number of siliquae plant-1 (340.1), seed (2001 kg ha-1) and stover yield (4961 kg ha-1) were recorded with soil application of 10.0 kg ZnSO4. 7H2O ha-1 (Zn1) but it was at par with foliar spray of 0.5 % ZnSO4. 7H2O at 30 and 45 DAS except seed yield of mustard.
Effect of Spatial Arrangement on Growth of Okra in Maize/Okra Intercrop in Kilifi, Kenya
Authors: S. M. Nganga, , L.G Mounde, , J.B. Ndiso, 
Published: October 2024

Okra is an important vegetable cultivated for both local and export market in Kilifi County. The demand for the vegetable has recently been increasing. On the other hand, maize is the staple food crop for most households in Kenya, but yields have been on the decline due to limitations of poor soils, unpredictable rainfall and its cultivation in small parcels of land, resulting in poor yields and low income that exacerbate food insecurity and poverty in the County. In Kilifi, the two crops are intercropped in random mixtures and with inconsistencies in planting density. Field trials were undertaken during short rains (October 2020 - January 2021) and long rains season (April - July 2021), at Industrial Crops Research Institute (ICRI) research farm situated at Kenya Agricultural and Livestock Research Organization (KALRO) - Mtwapa in Kilifi County, Kenya. The objective was to evaluate the effect of spatial arrangement on growth of okra in maize/okra intercropping system in Kilifi County. There were four treatments consisting of sole maize, sole okra, maize/okra intercrop arranged in alternating rows of 1:2, and maize/okra intercrop arranged in 2:2 patterns, replicated three times in a randomized complete block design (RCBD). Data collected in maize included: plant height, number of days to 50% tasseling, number of maize plants per plot; and number of leaves per maize plant. Data in okra included plant height, number of leaves per plant, leaf area, number of branches per plant, number of plants per plot, and days to 50% flowering. Okra plant height, number of okra leaves per plant, okra leaf area, number of branches per plant, number of days to 50% flowering, were significantly affected (P ≤ 0.05) by spatial arrangement. Intercropping increased okra plant height after the sixth week. Leaf area, number of leaves and number of branches per plant, were negatively affected by intercropping. Intercropped okra took longer days to flower compared to sole okra. Maize is more competitive compared to okra. However, both two arrangements can be suitable for intercropping okra with maize.
Efficacy of Hyperbaric Oxygen Therapy in the Treatment of Pyoderma Gangrenous
Authors: F Xavier, Laura , M Ribeiro, Alex , C Diniz, Raquel , P Canabrava, Paula , V Oliveira, Gisele , H Souza, Alessandra 
Published: October 2024

Pyoderma gangrenosum (PG) is a rare and severe neutrophilic dermatosis characterized by the formation of painful and frequently debilitating skin ulcers. Although the definite causes of PG remains uncertain, current evidence has suggested that the condition development might be associated with dysfunctions of the immune system along with multiple systematic conditions. Over the past years, hyperbaric oxygen therapy (HBOT) has been used as an adjuvant treatment in various chronic conditions, including PG.
The retrospective, observational, and descriptive study presented here aims to evaluate the effectiveness of HBOT in treating patients with PG, treated at the Centro Mineiro de Medicina Hiperbárica. Additionally, the investigation seeks to identify treatment response patterns, considering factors such as patient age, the number of HBOT sessions required, and the total duration of treatment.
The study sample comprised ten patients diagnosed with PG who underwent HBOT from January 2000 to December 2022. Most patients were female, with ages ranging from 43 and 72 years. A significant reduction in the area of skin lesions was observed in several patients, indicating a positive response to the treatment. Specifically, 70% of the patients experienced a decrease in the size of their lesions, in which some cases exhibited significant enhancement in areas originally affected by necrosis. Wounds were located in multiple topographies (i.e., perimalleolar, surral, and patellar regions) besides the abdominal and gluteal areas. The duration of treatment varied significantly, spanning from months to years, according to the primary wound features.
Despite the positive findings observed in our study, the definitive effectiveness of HBOT in managing PG necessitates further experimental evaluation, based on larger patient cohorts and more robust methodological designs. This highlights the inherent limitations attributed to our study and emphasizes the need for future research in the field of wound healing.
Pilot Ionosonde Network for Identification of Traveling Ionospheric Disturbances
Authors: Reinisch Bodo , Galkin Ivan , Belehaki Anna , Paznukhov Vadym , Huang Xueqin , Altadill David , Buresova Dalia , Mielich Jens , Verhulst Tobias , Stankov Stanimir , Blanch Estefania , Kouba Daniel , Hamel Ryan , Kozlov Alexander , Tsagouri Ioanna , Mouzakis Angelos , Messerotti Mauro , Parkinson Murray , Ishii Mamoru 
Published: February 2018

AbstractTraveling ionospheric disturbances (TIDs) are the ionospheric signatures of atmospheric gravity waves. Their identification and tracking is important because the TIDs affect all services that rely on predictable ionospheric radio wave propagation. Although various techniques have been proposed to measure TID characteristics, their real‐time implementation still has several difficulties. In this contribution, we present a new technique, based on the analysis of oblique Digisonde‐to‐Digisonde “skymap” observations, to directly identify TIDs and specify the TID wave parameters based on the measurement of angle of arrival, Doppler frequency, and time of flight of ionospherically reflected high‐frequency radio pulses. The technique has been implemented for the first time for the Network for TID Exploration project with data streaming from the network of European Digisonde DPS4D observatories. The performance is demonstrated during a period of moderate auroral activity, assessing its consistency with independent measurements such as data from auroral magnetometers and electron density perturbations from Digisondes and Global Navigation Satellite System stations. Given that the different types of measurements used for this assessment were not made at exactly the same time and location, and that there was insufficient coverage in the area between the atmospheric gravity wave sources and the measurement locations, we can only consider our interpretation as plausible and indicative for the reliability of the extracted TID characteristics. In the framework of the new TechTIDE project (European Commission H2020), a retrospective analysis of the Network for TID Exploration results in comparison with those extracted from Global Navigation Satellite System total electron content‐based methodologies is currently being attempted, and the results will be the objective of a follow‐up paper.