bluuebunny/crossref_metadata_2025 huggingface dataset:
Hydrogeological Assessment of the Aquifers in Shwan Sub-Basin, Kirkuk, Iraq
Authors: Al-Hayali Hussein , Al-Tamimi Omer , Hamamin Dara
Published: March 2024

Groundwater is considered one of the main sources of providing water for agricultural, domestic, and industrial activities within the Kirkuk province. The current article aims to assess the groundwater impound and estimate the hydraulic properties of the main aquifers within the Shwan sub-basin. Pumping test was conducted in 6 water wells with the aid of the principal observation wells drilled in the Bai-Hassan formation and Quaternary deposit. Based on the sketches of the drilling wells and according to the results of the hydraulic characteristics the aquifer types lie under the confined to semi-confined conditions. The saturation thickness varies between 35–82 m. The values of hydraulic conductivity ranged between 12–28 m/d the Transitivity is in the range of 570 m2/d–1032 m2/day, and the storage coefficient ranged between 3 x 10-4 – 9 x 10-4. The flow net map was created by measuring the depths of the groundwater from 55 wells drilled inside the area of interest. The depths to the water table range from 7.5 –108 m below the ground surface and the static water level varies from 235–750 m a.s.l. The groundwater flow map shows that the water in the area heads mainly from the eastern towards the western direction, then drains to the Lesser Zab River.
Characterization of the Yamama Reservoir in the Abu-Amood Oil Field, Nasiriya, Southern Iraq
Authors: Alshammary Zahraa , Al-Khafaji Amer , Al-Najm Fahad
Published: March 2024

The Abu-Amood (Rafidain) Oilfield considered as one among five main fields of Nasiriya, with multiple oil reservoir units: Mishrif, Mauddud, Zubair, Nahr Umr, Ratawi, and Yamama formations. The current study highlights the findings of identifying and analyzing the petrophysical characterization of the carbonate Yamama reservoir units in the studied oil field in southern Iraq, in order to understand their influence on the reservoir hydrocarbon potential production of the field. A set of wirelines well logs for five wells was investigated for reservoir evaluation and reservoir unit characterization, including gamma-ray, caliper, spontaneous potential, neutron, sonic, density, and resistivity wire logs. The Didger Software utilized for converting the geophysical wireline log images to digital data, which was then transferred to Excel and IP software to determine and interpret the qualitative and quantitative interpretations values, like porosity, permeability, water saturation, hydrocarbon saturation (Sh), and total water volume. According to the gamma-ray vs. neutrons chart, three types of lithology were identified (limestone, argillaceous limestone, and shale). The Yamama Formation is primarily made of limestone, with argillaceous limestone accounting for the majority of the primary mineral components, and the neutron-density relationship chart which also shows a little gas in wells AAm1, 2, 4, and 5. Based on the results of the petrophysical characteristics interpretations of the oilfield wells, the Yamama Formation was include six units: YR-1, YR-2, YR-3, YR-4, YR-5, and YR-6, and separated by five barrier beds. The porosity ratio variety between fair to good (from 0.10 to 0.17%) in reservoir units which are the most significant reservoir units and oil-containing zones due to their good porosity and low water saturation and permeability which variety from very good to moderate in YR-1 unit. The remaining units are considered inefficient reservoir and do not hold hydrocarbons because of low porosity ratio and high-water saturation.
Exploring the Impact of Petrophysical Uncertainties on Recoverable Reserves: A Case Study
Authors: Sadeq Dhifaf , Almomen Ahmed , Hamad Haider , Alameedy Usama
Published: March 2024

Reliable estimation of critical parameters such as hydrocarbon pore volume, water saturation, and recovery factor are essential for accurate reserve assessment. The inherent uncertainties associated with these parameters encompass a reasonable range of estimated recoverable volumes for single accumulations or projects. Incorporating this uncertainty range allows for a comprehensive understanding of potential outcomes and associated risks. In this study, we focus on the oil field located in the northern part of Iraq and employ a Monte Carlo based petrophysical uncertainty modeling approach. This method systematically considers various sources of error and utilizes effective interpretation techniques. Leveraging the current state of available data, our approach generates a wide range of theoretically possible results. Furthermore, establishing a set of probabilities to indicate the likelihood of each possible outcome is of utmost importance. By implementing this approach, we aim to enhance reserve assessments by accounting for petrophysical uncertainties, thereby providing decision makers with valuable insights into the range of possible outcomes and associated risks. This study contributes to a more robust understanding of recoverable reserves and supports informed decision making in the oil and gas industry.
Reservoir Characterization of the Paleogene Khurmala Formation in Tawke and Shaqlawa Areas, Kurdistan Region of Iraq
Authors: Abdulla Rzger , Hussein Hussein , Hamad Masoud , Abdulla Alan
Published: March 2024

Well logs were utilized to investigate petrophysical properties of the Khurmala Formation’s surface outcrops in Shaqlawa Subdistrict and Tawke Oilfield, e.g., lithology, shale volume, porosity, and fracture. The thickness of the formation is about 15 m in the Shaqlawa section and 42 m in the Tawke Oilfield. Porosity logs were used to estimate porosity; where the porosity values reached a maximum of 52% from the sonic log, 48% from the density log, and 35% from the neutron porosity log. The reservoir quality of the Khurmala Formation, as determined through the analysis of thin sections, which were obtained from outcrop samples, is deemed to be of low quality. The determined shale volume within the examined interval exhibits a moderate level of clay constituents, with the highest gamma-ray measurement indicating a shale content of 29% at some locations within the reservoir. This integrated method using various conventional well logs suggests a great probability of petrophysical properties in the Khurmala Formation to be considered as the reservoir.
Studying the Statistical and Petrophysical of the Mishrif Formation in the Nasiriya Oilfield, Southern Iraq
Authors: Al-Najm Fahad , Shehab Mayssa , Al-Samer Heba , Hafiz Mohammed
Published: March 2024

The Mishrif Formation was studied in seven wells that were distributed in the Nasiriya Oil-field, southern Iraq, well logs were obtained for these wells and included: Gamma ray, Neutron, Density and Resistivity log. The Nasiriya Oil field is located at the unstable platform Mesopotamian zone. The Mishrif Formation was divided into two rock units, the upper MA and lower MB, separated by insulating shale rocks based on the gamma ray log. Furthemore, the lower rock unit was also divided into two reservoir units MB1 and MB2. The petrophysical properties of the formation were studied using various logs and through realationships between the logs. The petrophysical study of the water and hydrocarbon saturations showed that the formation contains varying proportions and quantities of water and hydrocarbons that can be produced. The research also included a statistical study and calculation of reservoir heterogeneity using two methods: first using the Dykstra-Parsons Coefficient, where the results showed that is, the Lateral extension of the reservoir units of the study wells are heterogeneous, and second using the Lorenz coefficient, where the results showed that wells heterogeneous distribution, while Ns-9 and Ns-16 wells a homogeneous distribution.
Understanding the Mechanisms of Drilling Challenges through a Systematic Risk Assessment and Geomechanics Modeling; a Post-Drill Case Study, Balsam Field, Onshore East Nile Delta, Egypt
Authors: El Sherbeny Wael , Sharaf Lobna , Baghdady Ashraf , Rizk Mohamed , Farag Ali
Published: March 2024

This case study represents an approach of applying a systematic risk assessment in combination with Post-Drilling Geomechanics modeling to properly understand the root causes of drilling challenges through Late Messenain – Early Tortunian formations, Balsam field, onshore East Nile Delta, Egypt. The aim of the analysis is to support pro-actively the operator to drill the future wells safely through the problematic formation in the field. According to the risk assessment; drilling the reservoir section experienced three major challenges including downhole losses, tight spots, and differential sticking. The case study includes two phases; phase-I (Risk Identification Phase) considers defining the drilling hazards utilizing daily drilling reports (DDR’s), meanwhile Phase-II considers (1D Geomechanics & Wellbore Stability) constructing a post-drill Geomechanics models using a licensed Software using all available E-logs, borehole image and caliper data. Post-drill geomechanics models calibrated using drilling events, borehole image, caliper data and reservoir pressure measurements. The results of both risk identification and geomechanics models confirms that tight spots and differential sticking was related to overbalance drilling with improper wellbore strengthening package of drilling fluids that results in invasion/pressure transmission and eventually thick filter cake across high permeable/depleted sandstone rock. the study results indicates that the drilling challenges might be related to certain geomechanics signs e.g. time-dependent failures, weak bedding planes and pressure transmissions. Those Geomechanics events could be related to fluids-rock interactions and lack of improper wellbore strengthening art. The study outcomes would help in minimizing drilling challenges for future wells considering both drilling practices and drilling fluids design.
IMPLENTASI PEMBELAJARAN AQIDAH AKHLAQ DALAM PEMBENTUKAN KARAKTER RELIGIUS SISWA DI MTS MIFDA PRIMA KABUPATEN PROBOLINGGO
Authors: Sholehati  , Muhammad Devy Habibi
Published: April 2024

This study aims to explore the implementation of Islamic Moral Education in shaping religious character among students at MTS Mifda Prima Probolinggo, as well as to identify the supporting and hindering factors, along with the outcomes of applying this educational approach at MTS Mifda Prima Probolinggo. The research was conducted at MTS Mifda Prima Probolinggo, involving both the Islamic moral education teachers and the students as research subjects and informants. The applied method in this research is qualitative descriptive, where data, both written and oral, regarding the research subjects, are detailed. Data collection is carried out through observation, interviews, and documentation. Data analysis is performed using the Miles and Huberman approach, involving data reduction, data display, and drawing conclusions. The research findings indicate that the implementation of Islamic Moral Education in shaping religious character among students at MTS Mifda Prima Probolinggo is carried out through exemplary and habituation methods. This includes incorporating pre-lesson prayers, communal prayers, participating in the Tahsinul Qur'an program, fostering commendable behavior, and showing respect to teachers and peers. The goal is to support the formation of religious values that can be applied in daily life and provide positive examples. Identified hindering factors involve inadequate time allocation and the behavior of students.
Intersectional Impacts on Trans-Masc Individuals' Fertility
Authors: Daniels Lukas
Published: April 2024

The world’s “first'' pregnant man, Thomas Beatie, made headlines across the US in 2008 (Trebay, 2008). While these sensational headlines broke the ice for queer people across the country wanting to produce and carry their biological children, they did not curb the rampant transphobia, homophobia, and lack of information within the US public and the medical field. While the case of Thomas Beatie premiered over 12 years ago, the realities of biological parenthood for transmasculine individuals have not changed much as shown by a lack of information, research, training, or guidelines for providing medical and therapeutic care to trans-masc. individuals. However, recent research is slowly creating a baseline of information regarding transgender bodies and how they experience the world (de-Castro-Peraza, et al. 2019:12).
Properties of (C, r)-Hankel Operators and (R, r)-Hankel Operators on Hilbert Spaces
Authors:   Department of Mathematics, Hansraj College, University of Delhi, India, BHOLA JYOTI , GUPTA BHAWNA ,   Department of Mathematics, Netaji Subhas University of Technology, India
Published: March 2024

We introduce the operators which are generalizations of Hankel-type operators, called the (C,r)-Hankel operator and (R,r)-Hankel operator on general Hilbert spaces. Our main result is to obtain characterizations for a bounded operator on general Hilbert spaces to be a (C,r)-Hankel operator (or (R,r)-Hankel operator). We also discuss some algebraic properties like boundedness (for |r|≠1) of these operators and the relationship between them. Moreover, some characterizations for the commutativity of these operators are explored.
On some Combinatorial Properties of Generalized Commutative Pell and Pell-Lucas Quaternions
Authors:   Faculty of Mathematics and Applied Physics Rzeszow University of Technology, Poland, BRÓD DOROTA , SZYNAL-LIANA ANETTA ,   Faculty of Mathematics and Applied Physics Rzeszow University of Technology, Poland
Published: March 2024

Generalized commutative quaternions generalize elliptic, parabolic and hyperbolic quaternions, bicomplex numbers, complex hyperbolic numbers and hyperbolic complex numbers. In this paper, we study generalized commutative Pell quaternions and generalized commutative Pell-Lucas quaternions. We present some properties of these numbers and relations between them.
On Spectral Radius Algebras and Conditional Type Operators
Authors:   Faculty of Mathematical Sciences, University of Tabriz, Iran, JABBARZADEH MOHAMMAD REZA , MINAYI BAHMAN ,   Faculty of Mathematical Sciences, University of Tabriz, Iran
Published: March 2024

In this note, we study both the spectral radius and Deddens algebras associated to the normal weighted conditional type operators on L2(Σ). Also, in this setting, some other special properties of these algebras will be investigated.
Pertanggungjawaban Hukum Rumah Sakit Terkait Kebocoran Data Pribadi Pasien Berdasarkan Peraturan Perundang-Undangan
Authors: Erwin Tumpal Ferdinand Tampubolon  , Andika Persada Putera  , M. Khoirul Huda
Published: March 2024

Isu kebocoran data pribadi di Indonesia, termasuk di sektor kesehatan, semakin mengkhawatirkan. Rumah Sakit, sebagai korporasi, memikul tanggung jawab besar dalam menjaga data pribadi pasien dan potensi konsekuensi hukum yang timbul dari setiap pelanggaran data. Tesis ini bertujuan untuk menjelaskan akuntabilitas rumah sakit terhadap kebocoran data pribadi pasien berdasarkan peraturan hukum. Untuk menjamin perlindungan informasi pribadi pasien di rumah sakit, pemerintah harus menyediakan kerangka legislatif yang sesuai dan mematuhi peraturan perundang-undangan yang berlaku. Dengan demikian, pasien dapat memiliki kepastian hukum dan kepercayaan bahwa data pribadi atau informasi kesehatannya tidak akan dikompromikan selama prosedur medis di rumah sakit. Sebagai korporasi, rumah sakit tidak dapat menghindari kewajiban hukumnya. Kewajiban ini mencakup semua tanggung jawab hukum perdata, pidana, dan administratif sehubungan dengan pengungkapan informasi pasien. Dengan memahami dan menerapkan ketentuan ini, rumah sakit dapat secara efektif menjaga keamanan data pribadi pasien dan menghindari konsekuensi hukum yang merugikan.
Pengaruh Fasilitas Kerja, Pengembangan Karir dan Pengawasan Kerja Terhadap Kinerja Pegawai di Kantor Pelayanan Pajak Pratama
Authors: Ridwan Muhammad , Ramadhan Tengku Apriansya , Barat Robby , Panjaitan Ismail Arif , Suprayitno Eddi , Sadly Effendi , Pane Sri Gustina
Published: April 2024

This study aims to determine the Effect of work facilities, career development and work supervision partially and simultaneously on the performance of employees work in the Kantor Pelayanan Pajak Pratama Medan Belawan. The study was conducted at the Kantor Pelayanan Pajak Pratama Medan Belawan Jalan Sukamulia Nomor 17A Medan, with a population of 106 people, and a study sample. of 96 people. The data analysis technique used is multiple regression analysis using the IMB Statistics computer program for Product and Service Solution (SPSS) version 24. Based on the analysis results obtained work facilities have a positive and significant effect on the performance of employees work of the Kantor Pelayanan Pajak Pratama Medan Belawan, this is supported by the results of t count analysis > t-table (4,860 > 1,986) at n = 96 at 95% significance level. Career development has a not effect on the performance of employees work of the Kantor Pelayanan Pajak Pratama Medan Belawan, this is supported by an analysis of t count > t-table (3,297 > 1,986) at n = 96 at 95% significance level. Work supervision has a effect on the performance of employees work of the Kantor Pelayanan Pajak Pratama Medan Belawan, this is supported by an analysis of t count >-table (5,133 > 1,986) at n = 96 with a significant level of 95%.Value of F-count> F table (46,513 > 2,70) This states that together (multiple) there are positive and significant effects of work facilities, career development and work supervision on the performance of employees work of employees of the Kantor Pelayanan Pajak Pratama Medan Belawan. Thus the hypothesis proposed is accepted by the truth
Pengelolaan Persediaan Kaca Film Menggunakan Metode Economic Order Quantity (EOQ)
Authors: Al Ghozali Muhammad Syafri , Vikaliana Resista
Published: April 2024

CV Jaya Mandiri Motor is a company engaged in the sales and installation services of automotive and building window films, with branches in various cities. CV Jaya Mandiri Motor is an official dealer for various types of window films. Due to the increasing demand for window film installations, it is not uncommon for the CV Jaya Mandiri Motor branch in Kota Metro to experience shortages of window film stock, mainly due to the two-week lead time for ordering window films from the central distributor. Therefore, an optimization of the window film inventory system at the CV Jaya Mandiri Motor branch in Kota Metro is necessary to address the issue of stockouts and maximize the company's profits. In conducting research at the CV Jaya Mandiri Motor branch in Kota Metro, the Economic Order Quantity (EOQ) method is used to determine the most optimal and economical order quantities for each purchasing instance. The research results in the following EOQ values: Heat Protection window film, 98 meters in quantity with a frequency of 3 orders; 3M Black Beauty window film, 171 meters with a frequency of 2 orders; 3M Crystal Line window film, 83 meters with a frequency of 3 orders; Elite/5M window film, 633 meters with a frequency of 1 order; 3D Auto Film window film, 264 meters with a frequency of 2 orders; Black Sun Control window film, 264 meters with a frequency of 1 order; Black Platinum window film, 231 meters with a frequency of 1 order; and Crystal Ice window film, 456 meters with a frequency of 1 order
Reaksi Pasar Keuangan Terhadap Nilai Tukar dan Minyak Dunia
Authors: Rasyidin M , Rizkina Azka , Saleh M , Muttaqim Hakim
Published: April 2024

This research aims to examine the influence of world exchange rates and oil on financial markets in Indonesia from 1993 to 2022. The type of data in this research is secondary data and multiple linear regression analysis methods. That the exchange rate has a positive and significant effect on the financial market in Indonesia, which means that every increase in the exchange rate is followed by an increase in the financial market in Indonesia. World oil has a negative and significant effect on the financial market in Indonesia, meaning that every increase in world oil will reduce the financial market in Indonesia.
Levels of physical activity, physical and psychological well-being of university students, during the COVID-19 pandemic
Authors: Gibelli Giovana , Grava de Moraes Mayra , Alves Teodoro Marina , Lopes Verardi Carlos Eduardo
Published: April 2024

The objective of the study was to evaluate the levels of physical activity practice and psychological well-being of university students, of both sexes, during the COVID-19 pandemic. We opted for the cross-sectional experimental design method, when addressing the variables of physical exercise, stress, depression and anxiety that were manipulated and combined to verify a greater change in the responses to be analyzed in the research proposal, that is, that greater levels of physical exercises would be related to minor negative symptoms in the sphere of mental health. The results showed that, according to the sample collected, the proposed relationship was not verified, since the prevalence rates of symptoms of anxiety, depression and stress showed normal rates, without scores that indicate significant severity in the health condition mental health, and thus not proving, in this study, that the time of weekly physical activity had a direct influence on the mental health of the evaluated individuals, either in the improvement or reduction of the negative symptoms. Thus, it was verified that the Brazilian university students of the respective sample, despite not having adequate levels of physical activity practice, presented mental health conditions with a low prevalence of negative symptoms related to the psychological profile, indicating, therefore, little significance regarding the study hypothesis that positive mental health indicators would be directly related to higher levels of physical activity.
Key-words: Physical activity. University students. Anxiety. Depression. Mood states. Stress.
Associação entre treinamento físico e açaí na homeostase do cálcio e inflamação no coração de ratos submetidos a dieta hiperlipídica
Authors: Neiva Lavorato Victor , Coutinho de Miranda Denise , Bernardes Leite Luciano , Eustáquio Silva Marcelo , José Natali Antônio
Published: April 2024

O objetivo do presente estudo foi investigar os efeitos da associação de tratamentos com treinamento físico aeróbico (TEA) e suplementação de açaí sobre a homeostase do cálcio (Ca2+) e marcadores inflamatórios do coração de ratos submetidos a dieta hiperlipídica. Foram utilizados ratos Fisher, divididos em cinco grupos experimentais: Controle (C), Dieta Hiperlipídica (H); Dieta hiperlipídica + Açaí (HA); Dieta hiperlipídica + AET (HT); Dieta hiperlipídica + Açaí + AET (HAT). Os grupos alimentados com dieta rica em gordura receberam 21,8% de banha e 1% de colesterol. Os grupos suplementados com açaí liofilizado receberam 1% de açaí na dieta. Os animais dos grupos treinados foram submetidos a um programa progressivo de corrida em esteira durante 8 semanas. Por fim, os corações foram dissecados e os ventrículos esquerdos separados para análise de PCR em tempo real. O grupo HT apresentou maior expressão gênica do receptor de rianodina tipo 2 (RyR2) em comparação ao grupo H. Em relação ao trocador sódio/cálcio (NCX), o grupo H apresentou menor expressão gênica em comparação aos demais grupos. A interleucina 10 (IL-10) estava elevada no grupo HT em comparação ao grupo H. Os tratamentos alteraram os parâmetros de homeostase do Ca2+ e inflamação, mas a associação de intervenções não proporcionou efeitos adicionais.
Palavras-chave: Treinamento físico; açaí; Contratilidade; Inflamação; Coração.
KASUT MANIK PERANAKAN BABA DAN NYONYA: SATU KOLEKSI USAHA PEMELIHARAAN
Authors: JAMALUDIN NOR SOFIATUL AKMA , OTHMAN AHMAD NIZAM , ALBAKRY NUR SAFINAS , MOHAMMAD YUSOFF MOHAMMAD DZULSYAFIQ
Published: March 2024

Abstrak
Kasut Manik atau beaded shoe merujuk kepada kasut tradisional yang dihiasi dengan manik yang cantik dan rumit serta menjadi bahagian penting dalam sejarah budaya Peranakan Baba dan Nyonya. Usaha pemeliharaan bersama ini menunjukkan keupayaan untuk mempertahankan karya seni fesyen Peranakan Baba dan Nyonya. Tujuan kajian ini untuk mengumpul dan meneliti kajian-kajian lepas mengenai pemeliharaan kasut manik Peranakan Baba dan Nyonya. Kajian ini menggunakan triangulasi data iaitu menggabungkan pemerhatian, nota lapangan dan analisis dokumen untuk memastikan kefahaman yang menyeluruh tentang kajian yang dijalankan. Kajian ini juga menggunakan ‘Systematic Literature Review (SLR)’ untuk meminimumkan berat sebelah dalam penyelidikan sedia ada. Dapatan kajian ini membuktikan bahawa matlamat pemeliharaan budaya Peranakan boleh dicapai dalam pelbagai cara. Pengumpulan artikel atau jurnal ilmiah, penerbitan buku, konvensyen tahunan, program perantisan, perkongsian maya, rangkaian kerjasama, koleksi hadiah, pameran, dan promosi pelancongan adalah beberapa inisiatif yang telah dicadangkan. Kajian ini diharapkan dapat memberi panduan dan bantuan dalam pemeliharaan budaya Peranakan Baba dan Nyonya. Hasilnya, tujuan kajian ini mencipta koleksi literatur yang belum pernah dilakukan oleh pengkaji sebelum ini sebagai rekod bertulis yang dapat dijadikan rujukan ilmiah kepada penyelidik di masa akan datang.
Abstract.
Kasut Manik or beaded shoe refers to traditional shoes embellished with intricate and gorgeous beads, which are a vital part of Baba and Nyonya’s Peranakan cultural history. This collaborative preservation effort demonstrates the ability to defend Peranakan Baba and Nyonya fashion artworks. The purpose of this study is to collect and research previous studies on the preservation of Peranakan Baba and Nyonya beaded shoes. This study uses data triangulation, combining observation, field notes and document analysis to ensure a comprehensive understanding. It also employs a Systematic Literature Review (SLR) to minimize bias in existing research. The findings of this study reveal that the goal of preserving Peranakan culture can be accomplished in a variety of ways. The gathering of scholarly articles or journals, book publication, annual conventions, apprenticeship programmes, virtual sharing, collaborative networks, gift collections, exhibitions, and tourism promotion are among the initiatives proposed. This study is expected to provide guidance and aid in the preservation of Peranakan Baba and Nyonya culture. As a result, the purpose of this study is to create a collection of literature that has never been done before by a researcher as a written record to be used as an academic reference for future scholars.
Formación de un Domo de Lava en el volcán Sabancaya durante el año 2019: Evidencias de monitoreo multiparamétrico
Authors: Taipe Edu , Aguilar Rigoberto , Antayhua Yanet , Ortega Mayra , Cruz Luis , Choquehuayta Fredy
Published: April 2024

El volcán Sabancaya ubicado en el sur del Perú entró en erupción el 19 noviembre de 2016, después de 18 años de inactividad. Esta erupción es de tipo vulcaniana, con IEV=1-2. Una de las características más resaltantes de este proceso es la formación de un domo de lava en el cráter, la cual fue registrada por diferentes parámetros de monitoreo. El proceso se inicia el 5 de marzo con la deformación en una fuente de sobrepresurización superficial, y se propone que esto es debido a la desgasificación y migración de un cuerpo magmático. La desgasificación se registra en superficie desde el 27 de marzo con un incremento de flujo de SO2. Durante esta etapa, además, se registran dos sismos LP muy energéticos (105 MJ), que confirmarían el incremento de presión por desgasificación y migración de magma. Consecuentemente, el 27 de abril se incrementa la altura de las columnas eruptivasde 1500 a 3000 m sobre el cráter. Seguidamente, se produce la ruptura de estructuras internas por migración del magma, y se registran enjambres de sismos VT y VTD con energías muy altas (hasta 294 MJ en un día); y la  migración de los fluidos por estas fracturas se registra mediante el incremento de energía en los sismos LP. Se propone que la extrusión del domo de lava se produce desde el 6 de setiembre, ya que los sismos de tipo LP son más energéticos, por la desgasificación del magma en ascenso y la ocurrencia un nuevo enjambre de sismicidad VT más superficial, lo cual empuja el magma a la superficie. Finalmente, entre el 26 de noviembre y 3 de diciembre se produce un último aporte magmático que culmina con la formación del domo en el cráter del volcán. Las características sísmicas cambian completamente. La cantidad diaria de las explosiones y LP disminuyen mientras que los sismos TRE e HIB aumentan drásticamente. Esto explicaría la existencia de un conducto abierto y un domo permeable. Dado que no hay deformación superficial o eventos sísmicos asociados a movimiento de volúmenes importantes de fluidos, se propone que es el final de este proceso de extrusión.
An examination of the barriers to gender-responsive public procurement in South Africa
Authors: Williams S
Published: March 2024

Women-owned businesses (“WOBs”) obtain less than 6% of public procurement contracts, despite accounting for close to 30% of registered businesses in South Africa. This contribution examines the reasons for the limited participation of WOBs in the public procurement system and finds that there are policy, legal, institutional and cultural barriers to the participation of WOBs in public procurement in South Africa. Policy barriers arise out of the misalignment between economic, gender and procurement policies and legal barriers arise from the previous limited and currently uncertain approach to preferential procurement legislation. However, the contribution finds that institutional, cultural and structural barriers pose even more of a risk to women’s participation in public procurement in South Africa. These institutional barriers include a reticence to prioritise WOBs by public agencies in the absence of an explicit mandate to do so, the reluctance to favour new market entrants to avoid contract failures and a culturally biased approach to WOBs by public agencies. Other barriers include the gendered impact of procurement corruption; the gendered impact of Covid-19, which terminated public contracts in sectors serviced by WOBs; and the complexity and opacity of the procurement process. The contribution finds that the historical lack of attention to women’s participation in procurement, and the lack of disaggregated data on preferential and gendered contracts, have made it difficult to understand the extent of women’s participation and the nature of required legal and policy interventions. This contribution assesses the barriers to the participation of WOBs in public procurement and makes recommendations aimed at addressing some of these barriers.
The role of the recognition of the Customary Marriages Amendment Act 1 of 2021 and wills in determining the proprietary consequences of polygynous customary marriages [Discussion of Mshengu v Estate Late Mshengu (9223/2016P) 2021 ZAKZPHC 49 (6 August 2021)]
Authors: Manthwa Tshepo Aubrey
Published: March 2024

The Recognition of Customary Marriages Amendment Act 1 of 2021 amends section 7(1) of the Recognition of Customary Marriages 120 of 1998 as a sequel to Gumede v President of the Republic of South Africa 2009 3 SA 152 (CC) and Ramuhovhi v President of the Republic of South Africa 2018 2 SA 1 (CC) in which this section was declared unconstitutional on the basis that it unfairly discriminated, on the basis of gender and race, against women married in terms of customary law before the commencement of the Act. According to the Constitutional Court, these women did not have the right to possess property in terms of customary law, which left them especially vulnerable in the absence of statutory protection if their marriages were dissolved for example. The achievement of gender equality is an important transformative and social justice goal in South Africa. Over the years, the courts have reconstructed customary law to promote gender equality. Customary law traditionally did not discriminate against women and they were allowed to manage property. However, this changed after contact with colonialism where, through collaboration with African men, women were treated as minors. This was a distortion of the legal system. The problem is that all the focus, including that of the courts and the legislature, is on the distorted version of customary law, and the true version that did not discriminate against women is being ignored. Consequently, in reconstructing and creating gender equality, a new form of customary law is being created, namely constitutional customary law. The true form of customary law does not recognise private ownership of property, A person can only manage property, not own it, but through constitutional customary law, the court and legislature have imposed common law concepts such as joint and equal ownership of property. This has unfortunate consequences, such as the fact that a customary heir can alienate family property after divorce while disregarding any responsibility to the family.
The relationship between strategic consensus and entrepreneurial orientation by mediating strategic leadership: An Analytical study in the Directorate for the Protection of Embassies and Diplomatic Missions
Authors: Saba Noori Alhamdany  , Sofya Imad Yousif
Published: March 2024

The objective of this study was to examine the influence of strategic consensus, encompassing dimensions of communication, transparency, and empowerment, on entrepreneurial orientation. Furthermore, it aimed to investigate the role of strategic leadership as a mediating variable in the relationship between strategic consensus and entrepreneurial orientation. The study addressed this issue through various theoretical and practical inquiries formulated based on the current circumstances of Iraqi organizations. The Directorate of Embassy Protection and Diplomats in Baghdad was selected, representing 94% of the total study population. The sample comprised 190 officers, with 170 questionnaires returned after distribution. Following encoding, 20 incomplete questionnaires were excluded, resulting in 160 valid responses. Statistical analysis revealed a significant and meaningful relationship between strategic consensus, strategic leadership, and entrepreneurial orientation, as demonstrated by hypothesis testing.
The effect of increasing the intensity of specialized endurance training on runners' ability in the advanced 1500-meter run in terms of vital capacity indicators (V.C.) and heart rate (S.V.)
Authors: Hussein Jaber Abboud  , Hussein Khamis Hussein  , Saad Abbas Fadhil
Published: March 2024

The 1500m race event is part of the athletics system, and the continuous competition to break records and achieve the highest levels of achievement in athletics events, especially the 1500m race event, is one of the topics that occupies the minds of many people interested in achieving digital development for this event, given the distance of the race and the time it takes to complete it. Because it is unique from other events, it has characteristics that distinguish it from other events, despite it being a middle-distance event, which shares with them that its speed is measured by the step, which consists of the length of the step and its frequency. Increasing any of these two factors while keeping one of them constant or increasing them together improves the level of speed and strength, which contributes to achievement.
Effectiveness of Distance Learning Technologies in Higher Education in Canada
Authors: Thompson Amelia
Published: April 2024

Purpose: The aim of the study was to investigate the effectiveness of distance learning technologies in higher education in Canada.

Methodology: This study adopted a desk methodology. A desk study research design is commonly known as secondary data collection. This is basically collecting data from existing resources preferably because of its low cost advantage as compared to a field research. Our current study looked into already published studies and reports as the data was easily accessed through online journals and libraries.

Findings:  Distance learning technologies in Canadian higher education have significantly expanded access to education, particularly for remote communities. They offer diverse courses and programs, accommodating non-traditional students and professionals. These technologies facilitate interactive learning, promoting collaboration among students and instructors. Studies demonstrate comparable learning outcomes between online and traditional classroom settings. Overall, integrating distance learning technologies has enhanced accessibility, flexibility, and quality of education in Canada.

Unique Contribution to Theory, Practice and Policy: Social cognitive theory, diffusion of innovations theory & community of inquiry framework may be used to anchor future studies on the effectiveness of distance learning technologies in higher education in Canada. Encourage universities and colleges to invest in professional development programs for instructors to enhance their pedagogical skills in utilizing distance learning technologies effectively. Advocate for policy initiatives that support equitable access to distance learning technologies and resources for all students, regardless of their geographical location or socio-economic background.
Comparative Analysis of Adverse Drug Reactions (ADRs) between COVID-19 Vaccines and Established Vaccines: A CDC VAERS Database Analysis
Authors: Sreekanth Shruti , Sreekanth Shreya , Viswanathan Sreekanth
Published: March 2024

Background: COVID-19 vaccines have been developed rapidly to combat the pandemic, but vaccine hesitancy remains a challenge due to concerns about adverse drug reactions (ADRs). This study aimed to compare the ADR profiles of COVID-19 vaccines with established vaccines and investigate differences between adults and children.

Methods: A retrospective observational study used the VAERS database to analyze ADR reports from January 2021 to December 2022 in the United States. Top ten common ADRs and seven severe ADRs associated with COVID-19 vaccines were studied using the Evans Criteria.

Results: Among the common ADRs, only dyspnea showed disproportionate reporting in COVID-19 vaccines. Severe ADRs, including myocarditis, pneumonia, and cerebrovascular accidents, were disproportionately reported. Age-stratified analysis revealed myocarditis disproportionately reported in both adults and children.

Conclusions: This study provides a comprehensive comparison of ADRs between COVID-19 vaccines and established vaccines. Although some severe ADRs were disproportionately reported, further evaluation is required to establish any causal relationships with COVID-19 vaccine. Continuous monitoring of ADRs is crucial for vaccine safety.
Pengaruh Chanyeol EXO Sebagai Brand Ambassador Dan Perilaku Konsumtif Fans EXO Terhadap Keputusan Pembelian Produk Nacific
Authors: Pancaningsih Rahayu , Fadila Sarah , Habiibika Baaq Shalli , Saryadi Saryadi , Suyatno Agus
Published: March 2024

Brand Ambassador dapat dijadikan sebagai salah satu cara untuk meningkatkan brand image suatu produk. Dalam penelitian ini peneliti akan membahas mengenai pengaruh Chanyeol EXO sebagai brand ambassador dan perilaku konsumtif EXO-L terhadap keputusan pembelian produk Nacific. Variabel independen dalam penelitian ini adalah brand ambassador dan perilaku konsumtif EXO-L sedangkan untuk variabel dependennya adalah keputusan pembelian Nacific. Metode penelitian yang digunakan adalah metode kuantitatif dengan jumlah responden sebanyak 100 responden yang di peroleh menggunakan sampel random sampling dari populasi seluruh EXO-L Indonesia. Sumber data dari penelitian ini diperoleh dengan cara menyebarkan kuisioner dengan teknik pembobotan likert. Penelitian ini menggunakan apikasi Statistical Package Sosial Sciense (SPSS) versi 25 dan hasil penelitian ini menunjukkan bahwa Chanyeol EXO sebagai brand ambassador, perilaku konsumtif dan fanatisme fans EXO memiliki pengaruh signifikan terhadap keputusan pembelian produk Nacific.
Dampak Manajemen Konflik Dan Kompetensi Terhadap Kinerja Pegawai Melalui Motivasi
Authors: Shoalihin Shoalihin , Sunaryo Hadi , Harijanto Djony
Published: March 2024

Penelitian ini bertujuan untuk menganalisis dampak manajemen konflik dan kompetensi terhadap kinerja pegawai melalui motivasi. Objek penelitiannya adalah para pegawai negeri sipil yang bekerja di BKPSDM Kota Malang, BKPSDM Kabupaten Malang Dan BPSDM Provinsi Jawa Timur. Pengumpulan data dalam penelitian ini menggunakan metode Survey dengan menggunakan kuesioner. Kuesioner dibagikan kepada 121 responden. Data yang dikumpulkan diolah dengan menggunakan Structural Equition Modeling (SEM) dengan bantuan Software Analysis of Moment Structure (AMOS). Hasil penelitian menunjukkan bahwa manajemen konflik secara langsung berpengaruh positif dan signifikan terhadap motivasi dan kinerja pegawai, kompetensi secara langsung tidak berpengaruh positif dan signifikan terhadap motivasi dan kinerja pegawai, dan secara tidak langsung manajemen konflik dan kompetensi terhadap kinerja pegawai melalui motivasi tidak berpengaruh positif dan signifikan.
Analisis Strategi Pemasaran Produk Gadai Emas (Rahn) Di PT Pegadaian (Persero) KC Tanjung Pura
Authors: Mubarak Husni , Harianto Budi
Published: March 2024

Strategi Pemasaran merupakan serangkaian rancangan besar yang mengambarkan bagaimana sebuah perusahaan harus beroperasi untuk mencapai tujuannya. Tujuan penelitian ini untuk mengetahui strategi pemasaran produk gadai emas (rahn) yang menggunakan prinsip 7P serta kendala dan upaya yang dilakukan dalam pemasaran produk gadai emas (rahn) di Pegadaian (Persero) KC Tanjung Pura. Penelitian ini menggunakan metode kualitatif dengan bentuk penelitian data (field research) Teknik pengumpulan data yang digunakan yaitu wawancara. Hasil penelitian menunjukkan bahwa strategi pemasaran yang dilakukan oleh Pegadaian (Persero) KC Tanjung Pura adalah dengan menggunakan 7P (product, price, place, promotion people, process dan physical evidence). Dimana dari strategi product, price, place, people dan process sudah baik. Sedangkan untuk strategi promotion masih kurang sehingga informasi mengenai produk gadai emas ini (rahn) ini tidak tersampaikan secara rata. Dan untuk strategi physical evidence fasiltas bangunan tidak terlalu besar. Kendala yang dihadapi yaitu kurangnya karyawan (SDM) dalam mempromosikan produk gadai emas (rahn) dan adanya pesaing. Sedangkan untuk upaya yang dilakukan yaitu melakukan promosi menggunakan media sosial dan memberikan pelayanan lebih baik lagi kepada nasabah. namun strategi yang telah diterapkan sudah baik, hal ini terbukti dari jumlah nasabah yang semakin meningkat setiap tahunnya.
Pengaruh Diskriminasi Pajak terhadap Penggelapan Pajak dengan Sanksi Pajak Sebagai Pemoderasi
Authors: Putra M. Doni Permana
Published: March 2024

Suatu Negara membutuhkan dana untuk membiayai segala kegiatan yang dilakukannya baik pengeluaran rutin maupun pengeluaran pembangunan dalam menjalankan roda pemerintahan. Sampai saai ini sumber penerimaan terbesar di Indonesia bersumber dari pajak. Pajak di definisikan sebagai kontribusi wajib kepada negara yang terutang oleh orang pribadi atau badan yang bersifat memaksa berdasarkan Undang Undang, dengan tidak mendapat timbal balik secara langsung dan digunakan untuk keperluan negara. Pajak dipungut dari warga negara Indonesia dan menjadi kewajiban yang dapat dipaksakan penagihannya. Tidak jarang masyarakat masih memandang pajak sebagai beban yang membuat pendapatannya berkurang. Sehingga kemungkinan untuk melakukan penggelapan pajak sangat besar. Penelitian ini bertujuan untuk mengetahui pengaruh diskriminasi pajak terhadap penggelapan pajak yang dimoderasi sanksi pajak. Hasil penelitian ini menunjukan bahwa diskriminasi pajak berpengaruh positif terhadap penggelapan pajak. Sanksi pajak tidak berpengaruh terhadap penggelapan pajak. Dan sanksi pajak tidak mampu memoderasi pengaruh diskriminasi pajak terhadap penggelapan Pajak. Menurut wajib pajak jika terjadi diskriminasi yang membuat wajib pajak merasa tidak mendapatkan rasa keadilan dalam memenuhi kewajiban perpajakannya, wajib pajak merasa tidak perlu mematuhi aturan yang berlaku terkait kewajiban perpajakan ataupun sanksi yang berlaku.
A comprehensive study on reference material of Imidacloprid in tomato matrix
Authors: Nguyen Linh Trang , Tran Thi Thu Trang , Dinh Hoang Anh , Nguyen Thi Thao Nguyen , Tran Thi Hong , Do Thi Thu Hang , Kieu Thi Lan Phuong , Dang Huu Cuong , Dang Van Ket , Nguyen Thi Huyen , Le Thi Phuong Thao , Le Thi Hong Hao , Nguyen Thi Anh Huong , Nguyen Thi Minh Hoa ,   Vietnam National University, Hanoi, Vietnam,   Vietnam National University, Hanoi, Vietnam,   Vietnam National University, Hanoi, Vietnam,   Vietnam National University, Hanoi, Vietnam,   National Institute for Food Control, Hanoi, Vietnam,   National Institute for Food Control, Hanoi, Vietnam,   National Institute for Food Control, Hanoi, Vietnam,   National Institute for Food Control, Hanoi, Vietnam,   National Institute for Food Control, Hanoi, Vietnam,   National Institute for Food Control, Hanoi, Vietnam,   National Institute for Food Control, Hanoi, Vietnam,   National Institute for Food Control, Hanoi, Vietnam,   Vietnam National University, Hanoi, Vietnam,   National Institute for Food Control, Hanoi, Vietnam
Published: March 2024

Controlling the level of crop protection chemical residues in food is always a matter of concern. Certified reference materials (CRM) or reference materials (RM) are used in crop protection chemical residue analysis to validate analytical methods and evaluate the quality of measurement results. Imidacloprid is a common crop protection chemical used in tomato crops. A comprehensive study of the production, storage, transport, and utilization of CRM imidacloprid in tomato matrix was conducted. After comparing the two frozen and freeze-dried production processes, the freeze-dried production process was concluded to be superior. The CRM characterization process complies with ISO 17034:2016. The concentration of imidacloprid in tomato CRM is consistent with the maximum residue limit of imidacloprid according to the Codex and regulations of Circular 50/2016/TT-BYT of the Ministry of Health of Vietnam. At 4°C storage temperatures, freeze-dried tomato CRM was predicted to be stable for at least 552 days, while at -20°C the shelf life was at least 704 days.
Study on coffee husk treatment by microorganisms
Authors: Nguyen Nhu Ngoc , Nguyen Mau Nghia ,   Vietnam National University of Forestry, Gia Lai, Vietnam,   Vietnam National University of Forestry, Gia Lai, Vietnam
Published: March 2024

The aim of this study was to identify the biodegradation abilities of some indigenous microorganisms applied in coffee husk treatment into organic substrates. There were three useful strains in coffee husks that were isolated and identified as Bacillus thuringiensis CF2, Bacillus subtilis CF4, and 01 fungal strain Cladosporium tenuissimum CF17. The biodegradation diversity of organic compounds in coffee husks as well as nitrogen fixation and 3- Indol acetic acid (IAA) production of those strains were tested. The biomass of three strains also were collected from fermentation broth and mixed into biomass solution with 1:1:1 (v/v/v) proportion in volume and then were incubated with dry coffee husks. The results showed that the most effective incubation formula is mixing 500 mL of the biomass solution mixture with 20 kg of dry coffee husks for 8 weeks. The quality of the substrates from coffee husk waste after 08 weeks of incubation is shown through a number of indicators meeting the quality of organic substrates specified in TCVN 7185: 2002 and testing the quality of the substrates. The organic substrates from coffee husks were used to grow sprouts and accessed. The weight of sprouts obtained when sowing on coffee husk substrates reached 69.7 grams while it reached 43.2 grams on a commercial substrate in the same area of 30 cm2.