bluuebunny/crossref_metadata_2025_split huggingface dataset:
Examining the Role of Organizational Behavior and Leadership Styles Towards Employees' Performance in Petrochemical Companies in Saudi Arabia
Authors: Elrayah Musaddag , Abdelwahed Nadia A. Abdelmegeed , Almajed Abdulhameed A. , Moustafa Mohamed A. , Afaneh Jehad Abdallah Atieh 
Published: November 2023

Objective: The objective of this study was to examine the role of organizational behavior (OB) and leadership styles towards Employees Performance (EP) in petrochemical companies in Saudi Arabia.

Method: This study is quantitative and applied an online approach using Google. Forms to gather the information from the respondents. The study utilized 165 valid responses to conclude the investigation. Using multiple regression analysis, the study highlights the influence of Organizational Behavior (OB), Democratic Leadership Style (DLS), and Bureaucratic Leadership Styles (BLS) on Employees Performance (EP).

Results: The findings showed that OB has positively affected the EP. Three out of five hypotheses (two independent variables and one mediator variable) were statistically significant: OB (T=-3.678, p<0.001, β= -0.240), DLS (T= 5.604, p<0.001, β=0.383), and BLS (T= 2.979, p=0.003, β= 0.195) in EP. ALS, on the other hand, was not statistically significant in EP (T =0.922, p=0.358, and β=0.063). Also, LLS was not statistically significant in EP (T=1.427, p=0.155, and β= 0.099).

Conclusions: The findings suggest specific ways to enhance the leadership and EP of supervisors. It indicated that increased EP would result from a DLS and BLS. Leaders or supervisors should be aware of what is crucial for their teams and businesses and inspire their team members to view possibilities and problems in new ways. Supervisors should also have their own goals and strategies for helping subordinates grow as team players and collaborative workers. Supervisors should be innovative and inspire associates to look for more options and possibilities rather than settling for performance that meets standards. Supervisors should be aware of the values of their employees and develop business strategies, plans, procedures, and practices for their department or unit that will likely enhance employees' well-being. Respect for people is essential to developing a good working relationship between managers and staff.
Synthesis of graphene by electrochemical exfoliation from petroleum coke for electrochemical energy storage application
Authors: Singaramohan Dhana Priya , Ramanujam Saravanathamizhan , Veerasamy Manimozhi , Thomas Santhoshini Priya , Natesan Balasubramanian 
Published: November 2023

The objective of the present work was to synthesize a graphene-like structure from petroleum coke (pet coke). Graphene is a potential alternative conducting material to replace traditional electrode materials such as indium tin oxide. The phosphoric acid was used to activate the pet coke in conditions where the coke to acid ratio is varied as 1:1, 1:2, 1:3, 1:4 and 1:5. The samples were kept at different temperatures in the furnace maintained in inert atmospheric conditions at 400, 500 and 600 °C for activation time intervals of 1, 2 and 3 h. The extent of activation of pet coke samples was characterized by their yield and iodine number. For the optimized conditions (600 °C, 3 h, 1:4 coke to acid ratio), the activated pet coke was moulded and taken as the anode for electrochemical exfoliation using platinum wire as cathode, and 0.3 M H2SO4 solution as electrolyte. The electrochemical exfoliation was carried out using DC power supply at 22 V for 8 h, and the obtained exfoliated product was analysed by surface-sensitive techniques (XRD, Raman and SEM). The specific capacitance values were measured using cyclic vol­tammetry in KOH, Na2SO4 and H2SO4 electrolytes. The highest specific capacitance value of 40 F g-1 for the scanning rate of 25 mV s-1 was obtained in 1 M H2SO4. It was confirmed that graphene-like structure produced from activated pet coke can be used as an alternate material for supercapacitor applications.
OPERATED ROOFING: PERSPECTIVES OF USE
Authors: Кодоева Ванда Состиковна , Тибилова Ада Георгиевна , Котолова Светлана Роландовна 
Published: November 2023

В статье рассматривается эксплуатируемая кровля - важная перспективная составляющая развития городов, создающая комфорт и улучшающая историческую архитектуру. С развитием инновационных технологий в области создания качественных строительных материалов расширяются возможности проектирования и эксплуатации надежных, долговечных, экологичных, энергоэффективных зон работы и отдыха людей.
The article deals with the exploitable roof - an important promising component of urban development, creating comfort and improving historical architecture. With the development of innovative technologies in the field of creating quality building materials, the possibilities of designing and operating reliable, durable, environmentally friendly, energy-efficient areas for people's work and recreation are expanding.
Fluorescence sensors based on imidazolium for biogenic amines
Authors:   , Kongwutthivech Jaturong 
Published: November 2023

The aim of this work is to design the system for histidine (HD) and histamine (HM) discriminated detection by using the fluorescence sensors including Histamine Blue (HB), imidazole compound (AN) and imidazolium compound (ANI). Firstly, the synthesis of sensors HB, AN and ANI have been achieved. Our first concept was that the combination of sensors HB and ANI discriminated HD and HM by using FRET process. Unfortunately, sensor ANI consisting of a naphthalimide moiety cannot discriminate HD and HM due to a competitive fluorophore against sensor HB. For the second concept, the binding affinity of Cu2+ ion towards the HBHD and HBHM complexes could discriminate the HD and HM detection by using fluorescence technique. The Cu2+ ion bound selectively with HBHD complex and the fluorescent response of HBHD was quenched in the presence of excess Cu2+ ion. Therefore, we successfully discriminated HD and HM by using the combination of sensor HB and Cu2+ ion. Surprisingly, we enabled to apply the fluorescence responses under different guests to construct the logic gates system. Moreover, we have also studied the selectivity of sensors AN and ANI. The results showed that the fluorescence spectra of sensor AN was deeply quenched in the presence of Cu2+ ion. The complex of sensor AN and Cu2+ ion had the log K value for binding affinity of 5.130 with the stoichiometry 1:1. In case of sensor ANI, the fluorescence quenching of sensor ANI was observed in the presence of F- ion. As the binding studies, the log K value of the complex was 3.05 with the binding mode of 1:1. Limit of detection and limit of quantification of F- determination were 0.18 mM and 0.60 mM, respectively. Finally, sensor ANI gave a promising selectivity for F- determination by colorimetric and fluorimetric naked-eye detection.
Popping mechanism of popped rice
Authors:   , Konharn Lalita 
Published: November 2023

This thesis presents the popping mechanism and the influence of temperature on the pore structure of popped rice. We compared the popping process of popped rice with popped corn. When a rice grain/corn kernel was heated by hot air, they exploded into popped products with an emitted characteristic “pop” sound. The thermally stable rice husk with an air-tight interlocking of lemma and palea made rice grain popped at a higher temperature as compared to that of popped corn. The higher popping temperature generated superheated water of higher pressure and greater mass of water involved in the popping process. The high pressure of superheated steam ruptured the rice husk. At this moment, the superheated steam exploded the microscopic starch granules into inter-connected starch balloons with micrometer-thin starch walls. SEM images confirmed larger pore sizes at greater popping temperature. The popped rice expanded about 21 times the grain volume while the popped corn expanded about 13 times the volume of kernel. During the popping process, the transformation of rice and corn did not undergo chemical changes as they only transformed their structures. Due to the higher popping temperature and the greater mass of water involved in the popping process, the popped rice jumped higher into the air with an instantaneous separation of popped rice and its husk.
Development of oxalate sensor using paper-based analytical device
Authors:   , Janrod Manassawee 
Published: November 2023

Herein, oxalate sensors were developed using paper-based analytical devices (PADs) coupled with electrochemical and colorimetric detection. For electrochemical paper-based analytical device (ePAD), the amount of oxalate in the solution was determined through the measurement of hydrogen peroxide (H2O2) produced from the enzymatic reaction between oxalate and oxalate oxidase (OxOx) obtained from an oxalate test kit. A carbon paste electrode (CPE) as a working electrode (WE) was modified with silver nanoparticles (AgNPs) and multi-walled carbon nanotubes (MWCNTs) to enhance electrochemical signal of H2O2. A CPE was composed of 50% w/w oil phase (mineral oil and PDMS) and 50% w/w graphite powder. The CPE was modified with 400 µL of 10,000 ppm AgNPs and 1% w/w MWCNTs. The AgNPs-MWCNTs-CPE was used to measure H2O2 using amperometric detection with an applied potential of -0.6 V. The linear ranges of the method for determination of H2O2 were in the ranges of 0.05-10 and 10-1,000 mM. From the first linear range, limit of detection (LOD) and limit of quantitation (LOQ) were found to be 0.02 and 0.08 mM, respectively. For detection of oxalate using the AgNPs-MWCNTs-CPE, oxalate solution was reacted with OxOx in a reagent B consisting of OxOx and horseradish peroxidase (HRP). However, electrochemical signal was not observed, which could be because the produced H2O2 was reacted with HRP from the reagent B. Therefore, the electrochemical determination of oxalate using ePADs was not successful.

In addition, a PAD was developed with colorimetric detection as an oxalate sensor using the same enzymatic reaction. The produced H2O2 was reacted with 3-(Dimethylamino) benzoic acid (DMAB) and 3-Methyl-2-benzothiazolinine (MBTH) to produce an indamine dye which is a blue color. The color intensity corresponded to the amount of oxalate in the solution. Interfering effect of AA contained in urine was minimized by adding a masking reagent (CuSO4, H3BO3 and NaOH) to react with AA for 30 min. The optimized amounts of OxOx, HRP, DMAB and MBTH were 3 x 10-3 u L-1, 1 x 10-4 u L-1, 2.4 mM and 0.0176 mM, respectively, which were used to react with oxalate for 10 min before measuring color intensity. The linearity of the method was in the range of 5-50 ppm. LOD and LOQ were found to be 3.38 and 11.27 ppm, respectively. The developed oxalate sensor based on PADs with colorimetric detection was successful to determine oxalate in urine with high accuracy and precision, in which %recovery of spiked oxalate in urine was found in the range of 80.7-110.0% and %RSD values of the amounts of oxalate from intra and inter-day measurements were lower than 5%. Therefore, the developed oxalate sensor based on PADs will hold a great promise to be a simple, low-sample and reagent volume, reliable and portable tool for determination of oxalate, especially for on-site measurements.
Quantum dots and fluorescence compounds for biogenic amine sensing
Authors:   , Tepakidareekul Manunya 
Published: November 2023

The simple approach for biogenic amine sensing electron transfer (ET) process and ligand exchange mechanism has been constructed by using fluorophore-micellar probe. In this work, coumarin derivative (CouS1) and carbon nanoparticles namely branch-polyethyleneimine modified carbon dots (N-CDs) were synthesized and used as fluorophore for constructing the probe. In the presence of SDS, the fluorescence intensity of these fluorophores was enhanced leading to a high sensitivity in sensing application. Upon the addition of various metal ions into the both solutions of CouS1 and N-CDs in the presence of SDS, Co2+ ion exhibited the highest fluorescence quenching in the both solution due to ET process. As a result, the CouS1/SDS/Co2+ and N-CDs/SDS/Co2+ probe were constructed for discrimination of biogenic amine. In the case of CouS1/SDS/Co2+ probe, the fluorescence recovery of CouS1/SDS was observed upon the addition of histidine because of removal of Co2+ ion from the probe by histidine. On the contrary, a high fluorescence quenching of CouS1/SDS/Co2+ was observed due to co-bonding of histamine with Co2+ ion. Moreover, CouS1/SDS/Co2+ enables to give a benefit discrimination of imidazole based biogenic amine by naked-eye approach. In the case of N-CDs/SDS/Co2+ probe, the fluorescence recovery of N-CDs/SDS was observed in particular of presented histidine. The detection limits of CouS1/SDS/Co2+ and N-CDs/SDS/Co2+ over histidine were 45 µM and 74 µM, respectively. This suggests that these probes can be applied for analytical detection of histidenemia both normal and histidenemia patients. Additionally, molecular logic gate was developed form these different sensing spectrum upon the different stimuli of Co2+ ion, histidine and histamine.
Fabrication of particles from tea polyphenol extract for anticancer activity
Authors:   , Pukfukdee Puttikorn 
Published: November 2023

Tea polyphenols, compounds expressed in various tea (Camellia sinensis) leaves, possess powerful antioxidant and anti-camcer activities. Nevertheless, more cytotoxicity to cancer cells with safety to normal cells of the tea polyphenols is needed for greater potential in cancer treatment. In this work, we have synthesized the oolong tea polymerized polyphenol (P-OTE) particles from the oolong tea polyphenol extract (OTE). The obtained particles are water dispersible and can entrap hydrophobic drugs such as paclitaxel (PTX) and xanthone. The P-OTE particles are spherical with size of 250±5 nm. PTX and xanthone can be loaded onto the particles at approximately 30% and 27% (w/w) loading content, respectively. The PTX-loaded P-OTE particles disperse well in water. The PTX-loaded P-OTE particles show excellently improved anticancer activity against lung cancer (A549) cell line as compared to the unencapsulated PTX, i.e., the IC50 value of < 0.02 μg/l for the entrapped PTX as compared with the IC50 value of 0.18 μg/l for the unentrapped PTX in DMSO.
ANALISA PEMASARAN JASA TUKANG CUKUR PADA BARBER SHOP SULTAN DI KELURAHAN MOLINOW KECAMATAN KOTAMOBAGU BARAT
Authors: Sherihulla Mokoagow Sitty 
Published: November 2023

Penelitian ini mengembangkan pengertian tentang individu dan kejadian dengan memperhitungkan konteks yang relevan, landasan pikir (teori), pikiran-pikiran dan ide-ide. Memahami fenomena sosial melalui gambaran holistik dan memperbanyak pemahaman mendalam makna (mearing). Penelitian ini tidak dimaksudkan untuk menguji hipotesis tertentu, tetapi hanya menggambarkan apa adanya tentang sesuatu variabel, gejala atau keadaan. Hasil penelitian menunjukkan hal yang sangat penting yang menjadi pegangan dalam pemasaran jasa yaitu kualitas pelayanan/jasa sebagai berikut: Aspek Tangible; telah memiliki dekorasi interior dan ruang tunggu yang bersih, tata letak fasilitas dan peralatan yang canggih, karyawan yang ramah dan memakai seragam kerja yang rapi. Aspek Reliability (keandalan); memiliki suatu keterampilan khusus dalam hal cukur mencukur dan bagi orang dewasa apabila telah selesai mencukur rambut, kumis ataupun jenggot, diberikan tambahan pelayanan berupa pijatan. Aspek Responsiveness; memberikan pelayanan yang cepat dan tepat. Ini diberikan agar membuat konsumen selalu merasa diperhatikan apalagi konsumen tersebut menginginkan atau mengatakan bahwa sedang diburu waktu. Inti dari responsibility (cepat tanggap) yaitu menyangkut kemauan dari karyawan dan pengusaha untuk membantu pelanggan dan memberikan jasa dengan cepat serta mendengarkan dan mengatasi keluhan/komplain dari konsumen. Aspek Asurance; karyawan sebelum diterjunkan ke lapangan atau tempat-tempat yang akan menjadi objek penghasilan cukur mencukur ini, terlebih dahulu diberikan pendidikan dan pelatihan agar memiliki pengetahuan yang cukup. Aspek Empathy; saat karyawan sedang memberikan pelayanan kepada konsumen biasanya tanpa disengaja mengadakan pembicaraan tentang apa pekerjaan konsumen, hobi konsumen, statusnya konsumen dan hal-hal lain, sehingga membuat konsumen tak merasa kalau waktu cukur mencukurnya telah selesai. Saran agar lebih meningkatkan pelayanan jasa yang lebih baik lagi ke depan, terutama dalam hal bagaimana menarik minat konsumen untuk tetap menjadi pelanggan yang tetap.
SISTEM INFORMASI PEMASARAN DAN MANAJEMEN ORDER PRODUK PADA TOKO SUMBER RAYA KOTAMOBAGU
Authors: Syafarin Mokoginta Moch Natsir 
Published: November 2023

Perumusan Masalah dalam penelitian ini adalah untuk mengetahui sistem informasi pemasaran dan manajemen order produk pada Toko Sumber Raya Kotamobagu. Penelitian ini menggunakan Teknik analisis deskriptif, atau uraian tentang sistem informasi pemasaran dan manajemen order produk pada Toko Sumber Raya Kotamobagu. (Raymond McL eod, 2011:213). Sumber data primer penelitian adalah Pimpinan dan karyawan Toko Sumber Raya Kotamobagu sedangkan Metode pengumpulan data melalui observasi, wawancara dan dokumentasi. Penelitian ini diharapkan bermanfaat bagi Pimpinan dan Karyawan Toko Sumber Raya Kotamobagu sebagai bahan penambah informasi dan bahan masukan khususnya dalam penyempurnaan sistem informasi pemasaran dan manajemen order produk yang efektif. Hasil penelitian menunjukkan aplikasi Sistem Informasi Penjualan yang digunakan dalam mengelola transaksi pembelian/ penjualan di Toko Sumber Raya Kotamobagu masih bersifat single user dengan bahasa pemrograman Visual Basic NET sehingga diharapkan Sistem informasi yang sudah dibangun bisa dikembangkan menjadi multi user sehingga bisa mempercepat proses pengolahan data dan transaksi.
Effect of Replacing Conventional Base Materials with Granular Volcanic Ash on Engineering Properties
Authors: Alhadama Saddam H. , Almaswari Abdullah A. , Algaboby Ziyad M. 
Published: November 2023

Granular Volcanic Ash (GVA) is a material of volcanic activity; it has a rough surface, a low specific gravity, and a high porosity because of the structures of the minerals in it. The purpose of this study was to find a way to utilize this waste material, which is widely distributed across Yemen, by using GVA for the placement of conventional coarse aggregate (basalt aggregate) while constructing roads. In this study, Red and Black GVA materials were combined with conventional coarse aggregate for use in the construction of pavement. Base coarse materials were blended with GVA aggregate and examined for their engineering characteristics in an experimental study. Conventional coarse aggregate was partially replaced by five replacement levels from GVA, corresponding to 10%, 20%, 30%, 40%, and 50% of the dry aggregate's total weight, were applied. As a control, a sample with no volcanic ash had been used. According to the results of experiment tests includes: density, California bearing ratio (CBR), abrasion percentage, and permeability test, it is possible to replace some of the basalt aggregates with GVA. Results showed that the engineering properties of base coarse materials specifications for CBR, and abrasion percentage were satisfied for volcanic ash percentages up to 20%.
POLA KEPEMIMPINAN YANG EFEKTIF DAN IMPLIKASINYA TERHADAP MULTIPLIKASI KETUA FAMILY CARE MASA KINI
Authors: Suhendra Suhendra , Aloysius Da Yohanes 
Published: November 2023

This writing aims to examine Effective Leadership Patterns, which aims to find out the direct implications for the leadership of today's Family Care Chairs in the process of development and multiplication of both groups and also the leaders who will become the new Family Care Chairs. Becoming an effective leader in the Family Care group is very important so that each congregation can be shepherded well, at the same time the existing congregation is directed and prepared to become an effective leader in this current era.
In writing this scientific work, appropriate research methods are needed, so the author uses qualitative research methods. By using basic theory from various book sources. The author also collected data in the field using interview methods with participants who were in direct contact with the current head of Family Care.
KEBOLEHAN MENIKAHI WANITA HAMIL DALAM PASAL 53 KOMPILASI HUKUM ISLAM (ANALISIS TEORI MAQASHID SYARI’AH)
Authors: Gunawan Gunawan 
Published: November 2023

Abstract: In the era of science and technology, the use of social media can hardly be limited because it crosses space, time and place, so that the Muslim community is increasingly faced with various problems, both those that directly touch Islamic teachings and other problems that are still related to Islam and these problems require settlement instruments and one of those instruments is Islamic law. One of the problems that is currently rife is promiscuity among young people who do not only meet in person but have penetrated social media such as FB, WA, Instagram and so on which makes meetings easier, so many things appear that should not have happened. in the Islamic generation, say for example dating relationships and to having premarital sex which causes pregnancy out of wedlock which impacts are not good for individuals and society, so that it becomes gossip because marriage is caused by pregnancy out of wedlock and the problem does not stop there but even continues to the status of the child born. In this research the author examines how the legal rules regarding women's marriage pregnant in the Compilation of Islamic Law and how to review the maqasid syari'ah theory of the rules law marry pregnant in Chapter 53 KHI.

Abstrak: Di era Iptek, penggunaan medsos hampir tidak bisa dibatasi karena melintasi ruang, waktu dan tempat, sehingga ummat Islam semakin dihadapkan dengan berbagai persoalan, baik yang langsung menyentuh ajaran Islam maupun masalah lain yang masih ada kaitannya dengan keislaman dan persoalan itu membutuhkan instrumen penyelesaian dan salah satu instrumen itu adalah hukum Islam. Salah satu persoalan yang saat ini marak terjadi adalah pergaulan bebas pada muda-mudi yang tidak hanya bertemu secara langsung tetapi sudah merambah ke media sosial seperti FB, WA, Instagram dan sebagainya yang semakin memudahkan pertemuan, sehingga banyak muncul hal-hal yang tidak seharusnya tejadi pada generasi Islam, sebut saja misalnya hubungan pacaran dan sampai melakukan seks pra nikah yang menyebabkan kehamilan diluar nikah yang dampaknya tidak baik untuk pribadi dan masyarakat, sehingga menjadi bahan gunjingan karena nikah disebabkan terjadinya hamil diluar nikah dan masalahnya tidak berhenti disitu saja bahkan berlanjut sampai pada status anak yang dilahirkan. Pada penelitian ini penulis mengkaji tentang bagaimana aturan hukum tentang perkawinan wanita hamil dalam Kompilasi Hukum Islam dan bagaimana tinjauan teori maqashid syari’ah terhadap aturan hukum kawin hamil dalam Pasal 53 KHI.

Kata Kunci: Pernikahan, Nikah Hamil, Maqashid Syari’ah