bluuebunny/crossref_metadata_2025 huggingface dataset:
The Effect of Micro and Nona Silica Addition on the Filtration and Mud Cake of Drilling Fluid
Authors: Assi Amel Habeeb
Published: September 2023

The selection of suitable materials as components of the drilling fluid remains the primary concern of the mud engineer. Micro and nanomaterials represent dense and effective complementary additives to the drilling fluid. In this paper, both micro silica and Nano silica were used in order to find the effect of each on the properties of drilling fluid in general and filtration in particular. Where the results showed that each of them has an effective and different role in improving the properties of drilling fluids in general and filtration in particular. although they are one material, but nanotechnology has contributed to making Nano-silica more efficient and effective than micro-silica. Both materials reduce the permeability of the mud cake and reduce the volume of the filtrate, as well as increase the viscosity, yield point and gel strength. As for density and acidity, fine silica had the biggest effect. Where it can be used as a heavy material, as well as the effect of adding micro silica on the PH value has been studied, as the results prove that the proportion is direct. As for Nano silica, it did not have a significant effect on the density or the pH. The results showed that Nano-silica is the most efficient for reducing filtration, followed by CMC, then PAC, then micro-silica It was found that if the percentage of addition was 25%, the filter volume value is as follows: 0.5 cc for Nano silica, 1.9 cc for CMC, 2 cc for PAC and 3 cc for micro silica. The addition of Nano-silica gave a cohesive clay cake with a permeability of 1.84, five times lower than what was provided by PAC for a 25% addition ratio.
Estimation the Remaining Life for Reformer Unit Tubes Furnace Operated Beyond the Design Life
Authors: Al-Warmizyari Husam Ahmed
Published: September 2023

The aim of this work is to study and model creep damage accumulation for remaining safe working life estimation of tube material used in petroleum industry plants operated at a high temperature for long time beyond the design life. Material constants and other data required for life estimation were extracted from the output results of real accelerated creep rupture tests conducted at three test temperatures (700, 725, and 750(oC and at three constant stress applications (120, 130, and 140 MPa). Also, a time-temperature parameter method (Larson-Miller Method) was modified to be applied based on the results of the accelerated creep rupture tests to build life predicted master curve for austenitic stainless steel type 321H. It is found that creep rupture time for stainless steel alloy decreases as temperature or stress increase. Also, it distinguished from the creep curves for the serviced stainless steel alloy, that the onset of tertiary creep stage starts early (about 50% of creep curve), this reflects the reduction in creep strength of the alloy as a result of the degradation in alloy properties that take place during the service life. It is also found that the estimated remaining working life for the serviced tube samples made from austenitic stainless steel type 321H is about (54703 hr) based on the calculated stress level (40 MPa) and service temperature 570 oC. The difference between the estimated remaining life and the experimental creep test life is due to the differences between the applied stresses, where higher level of stresses in the experimental creep testes are used to accelerate failure of specimens. The application for the result of this work can be the petroleum industries that where heaters tubes serviced at such industry need to be estimated for the remaining life after the design life expire.
Mordenite-Type Zeolite from Iraq Sand: Synthesis and Characterization
Authors: Ahmed Abdulla M. , Jarullah Aysar T. , Hussein Hala M. , Ahmed A. N.
Published: September 2023

Mordenite's excellent physical and chemical qualities set it apart from other zeolites with similar applications in industry. Mordenite is frequently produced through hydrothermal processing with TEA+ cations. The best template agent is TEA+ cations, despite the fact that they may lead to a variety of problems, such as the release of toxicity, the high cost of production, the contamination of wastewater, and environmental damage. So, it's important to develop a mordenite synthesis technique that doesn't need an organic template or a cheap template. The mordenite-type zeolites were prepared using sand from the western part of Iraq (Ar-Rutbah). Silica was extracted from Iraqi sand as a silica source and sodium aluminate as a source of alumina Al by using the SOL-GEL method through the hydrothermal technique at temperatures ranging from 23 to 27 °C over a period of 7 days. Analyses such as XRD, BET surface area AFM, FT-IR, and FE-SEM were performed on the sample. The average particle size was 31.9 nm, and the BET surface area was 202.487. XRF detected the ratio of silica to alumina (Si/Al = 4.55), and the exchange of sodium ions for hydrogen ions through ionic exchange is 100%. The micrograph clearly reveals a tiny portion of the crystal band with a flaky habit, while FE-SEM images of synthesized H-MOR show that plates form the majority of the crystals.
Bacteria
Authors: Malinowska Agnes
Published: September 2023

Bacteria have played a truly outsized role in the evolutionary story of life on earth, and they continue to be crucial to sustaining organisms and ecosystems. Until recently, however, most cultural and scientific interest in bacteria has centered on defeating the nefarious “germ.” This entry focuses in particular on how public health efforts to reign in the threat of bacterial disease in the US around 1900 aligned with the aspirations of a hegemonic Anglo-American culture to control and suppress marginalized groups like immigrants and racial others, easy scapegoats for disease. At the same time, British settler colonialism and, eventually, US government policy catalyzed devastating epidemics amongst Indigenous populations from the colonial period into the twentieth century, such as the tuberculosis crisis in Native health. While bacterial disease has been largely divisive in the US, bacteria themselves can encourage humans to think in terms of cooperation and alliance, rather than the strict enforcement of borders. Both symbiosis—bacteria’s preferred social relation—and binary fission—bacterial reproduction—suggest a radical form of sociality that permeates, ruptures, and transforms “individuals” constantly, so that the one always slips into the collective.
Fundamentals for the repurposing of hydralazine as an anti-neoplastic drug
Authors: Tomas Koltai
Published: September 2023

Hydralazine (HDZ) is a drug patented in 1949 that has been used for the treatment of arterial hypertension since 1953. New and better anti-hypertensive drugs have almost moved HDZ into oblivion. Interestingly, anti-cancer effects were found and this drug is seriously being considered for repurposing it for cancer treatment. The main mechanism of action against tumors seems to be its ability to act as a demethylator agent. By demethylating the promoter region of tumor suppressor genes HDZ seems to restore the effects of these genes, which are frequently inhibited in cancer through epigenetic mechanisms. However, HDZ also has some other important involved mechanisms such as anti-angiogenesis, and reversal of resistance to imatinib. Particularly important is its ability to restore the activity of non-mutated p16 in cancer. HDZ ability to inhibit glutamate oxaloacetate transaminase 1 is a recent finding that will probably add further interest to the drug in cancer treatment. This review analyzes the anti-tumoral effects of HDZ.
Comparative analysis of properties of fresh and fermented palm wine
Authors: Chioma I. Awuzie
Published: September 2023

This study attempted a proximate comparison of fresh and fermented palm wine to determine the percentage of their nutritional values. It used AOAC Guidelines for Single-Laboratory Validation of Chemical Methods for Dietary Supplements and Botanicals (current edition) Official Methods of Analysis. The physiochemical proximate analysis showed that fresh palm wine contains carbohydrate (1.21%), protein (0.588%), moisture content (94.99%), ash (2.00%), fat (0.90%), crude fibre (0.32%) and little amount of alcohol content of 28.00%). While the analysis showed that fermented palm wine contains moisture contents (92.00%), ash content (2.00%), protein (0.32%), fat (0.100%, carbohydrate (4.92%), fibre (0.66%). The key findings of the study showed that fresh palm wine is rich in protein, which has reduced alcohol contents. The paper thus surmised consumption of freshly tapped palm wine is good. Hence, submits that it is advisable to take palm wine when it is freshly tapped. The paper also encouraged mechanization of the tapping process to enable the youths participate.
Alobar holoprosencephaly: A case report
Authors: Jalal Mohammed , El Abbassi Imane , Amghar Ayoub , Lamrissi Amine , Bouhya Said
Published: September 2023

Introduction: Holoprosencephaly (HPE) is a rare brain malformation, which results from a cleavage defect of the prosencephalon. Three forms have been described as: alobar, semi-lobar, and lobar forms.

Case Report: We report a rare case of holoprosencephaly, diagnosed at the maternity of the Ibn Rochd Hospital Center in Casablanca.

Conclusion: Holoprosencephaly is secondary to a cleavage anomaly of the prosencephalon, the diagnosis is based on echotomography, computed tomography (CT) scan and nuclear magnetic resonance imaging (MRI). It is important to perform a karyotype to look for a chromosomal anomaly. Holoprosencephaly, although rare, should be recognized and diagnosed; minor forms are likely to benefit from medical replacement therapy or ventricular shunting.
2012–2021 yılları arasındaki bazı meteorolojik verilerin analizi ve değişim eğiliminin irdelenmesi: Sinop ve Kastamonu illeri örneği
Authors: BOLAT İlyas , ŞENSOY Hüseyin
Published: September 2023

Küresel ısınma ile meydana gelen iklim değişikliğinin etkileri özellikle sıcaklık ve yağışta meydana gelen değişimler şeklinde görülmektedir. Bu çalışma son on yıllık dönemde (2012–2021) aylık minimum, ortalama ve maksimum sıcaklıklar ile aylık ortalama minimum, maksimum ve yıllık toplam yağış miktarları gibi bazı meteorolojik parametrelerde bölgesel ölçekte meydana gelen değişimleri belirlemek amacıyla, Batı Karadeniz Bölgesi’nin doğusunda yer alan Sinop ve Kastamonu illerinde gerçekleştirilmiştir. Basit doğrusal regresyon modeli (BDRM) sonuçlarına göre Sinop ve Kastamonu’da ortalama minimum ve maksimum sıcaklık ile yıllık ortalama sıcaklığın (Sinop; r = 0,498, Kastamonu; r = 0,225), Kastamonu iline ait ortalama minimum sıcaklık hariç (r = -0,07), artış eğiliminde olduğu belirlenmiştir. Bununla birlikte, illerin ortalama sıcaklık değerleri arasında istatistiki olarak fark (P < 0,05) vardır. Yıllara göre ortalama toplam yağış değişimini belirlemek için yapılan regresyon analizi modelinde Sinop (r= - 0,094) ve Kastamonu (r =- 0,276) illerinde ortalama toplam yağışın azalış eğiliminde olduğu ortaya çıkmıştır. Yıllık ortalama toplam yağışın Sinop’ta 738,95 mm ve Kastamonu’da 564,55 mm olduğu belirlenmiştir. Ortalama sıcaklık değerinde olduğu gibi illerin yıllık toplam yağış değerleri arasında da istatistiki olarak fark (P < 0,05) vardır. Çalışma sonucu küresel ısınmanın işareti olarak bölgesel ölçekte sıcaklıkların artış eğiliminde olduğunu, yağış rejimi ve dağılımında da değişimlerin gerçekleştiğini ortaya koymaktadır.
Osteonecrosis in the jaws an alert to the use of bisphosphonates literature review
Authors: Barbosa Thamires Tamara Trindade , Oliveira Milena Ferreira De , Trentiny Eduardo , Marques Fabiana Ribeiro , Pasetti Lilian Aparecida , Stroparo Jeferson Luis de Oliveira
Published: September 2023

Bisphosphonates are a class of drugs widely used to treat bone conditions such as osteoporosis and metastatic bone cancer, they work by inhibiting the activity of osteoclasts, the cells responsible for bone resorption, resulting in an increase in bone density. However, prolonged use of these medications has been linked to the development of osteonecrosis, a condition in which a part of the bone loses its blood supply, resulting in pain, inflammation and, in severe cases, bone necrosis. Awareness of bisphosphonates and osteonecrosis is critical to ensuring that the benefits of these drugs outweigh the risks.
Oxygen therapy for treatment of oral lesions following COVID-19 infection: a case report
Authors: Stroparo Jeferson , Barbosa Thamires , Trentiny Eduardo , Lyra Luciana , Zielak João , Baratto-Filho Flares , Gabardo Marilisa
Published: September 2023

Oral manifestations following COVID-19 infection can cause discomfort to patients, therefore new treatments must be investigated in order to avoid or minimize this condition. The aim of this study was to report on the use of oxygen therapy in the treatment of COVID-19 oral manifestations. A 22-year-old male patient sought dental care 15 days after isolation due to the infection. He noticed that lesions had arisen in his oral cavity, having initially decreased, but returned after quarantine. The patient had difficulty in eating due to painful symptoms and a burning sensation in the tongue. During clinical examination several lesions were found in his mouth. Treatment using oxygen therapy was proposed with the mouthwash containing active oxygen. After the first day of treatment the patient reported that he was able to eat more easily; after the second day he was able to eat normally, and the burning sensation in his tongue also stopped; by the tenth day total lesions regression had occurred. It was found that the use of oxygen therapy promotes healing of oral lesions due to COVID-19, bringing comfort to the patient, reducing painful symptoms and leading to total healing of lesions.
Development and dependent capitalism in Latin America
Authors: Peres Anna Paula Lemos Santos , Ravnjak Leandro Luciano Silva
Published: September 2023

Capitalism, socialism and communism. The relationship between these systems leads to several analyses, among which emerges the one involving economic growth in the context of development and dependence in Latin America. Understanding the relationship between political system, economic system, development and dependence is the objective of this work. It employs the deductive method, with a qualitative approach, of exploratory character from a bibliographic review. Development cannot be conceived as synonymous with economic growth, with understandings in the sense that it is not possible to universalize development to all nations, while there is understanding in the sense that development is possible even in a context of dependence. The association of democracy with capitalism generates important discussions since the State ends up being appropriated and used as an instrument by capital. The analyses point to the stranglehold of the capitalist system and its logic that promotes inequalities. New paths are pointed out in the face of the challenge of democratic/capitalist civilizations, especially Latin American ones.
The Effectiveness of Digital Learning Curriculum 2013 in Pandemic
Authors: Nur Sahril , Lakoro Qadriyah , Lengkoan Fergina
Published: September 2023

This paper aim to find out the effectiveness of digital learning curriculum 2013 in pandemic era. This paper is focused on how to design digital learning based on Curriculum 2013 in the middle of the COVID-19 Pandemic that is affecting all aspects of life including in part of education. In this paper, descriptive content analysis techniques and literature reviews are employed as the methodology. All of the information is obtained from scientific articles related to the material and the focus raised in this article. From the results of the analysis collected, the author reveals that although there are several advantages and disadvantages that can be obtained from online learning as we are more able to relax in carrying out activities. There are also some problems that must be faced by students and from teachers when undergoing online learning in a pandemic situation, such as validly, reliably, and long-distance communication. Based on the discussion, digital learning in curriculum 2013 can be solution to solve the problem, the advantages of digital learning such as interactive e-book, in-site and out-site classroom, creative learning, and digital literacy. The authors then concluded that teachers and students could still have to find some tools, materials, methods, and learning resources that could be used to support and facilitate students in online meetings.
Calidad ambiental desde el aprovechamiento de residuos orgánicos como estrategia educativa.
Authors: Gracia Rosa
Published: September 2023

Actualmente se están implementando diversas estrategias orientadas a aprovechar, desde una perspectiva sostenible, los residuos orgánicos generados dentro de las instituciones educativas. En este contexto, se realizó una investigación dirigida a analizar la percepción sobre calidad ambiental de los estudiantes de la Unidad Educativa Inmaculada, sobre temas como el impacto ambiental o la buena disposición de residuos sólidos orgánicos, a objeto de conocer la importancia de su adecuada separación y procesamiento. Se manejó una metodología basada en dos fases: 1) descriptiva y de campo, aplicando una encuesta a 90 estudiantes de los grados 4°, 6° y 8° para conocer su percepción sobre la calidad ambiental desde el aprovechamiento de residuos orgánicos, 2) revisión sistemática sobre la temática. Resultados: Más de la mitad de los encuestados afirman que la calidad ambiental, tiene mucho que ver con el reciclaje y el manejo eficiente de los residuos, igualmente indican que el ambiente escolar es ideal para la enseñanza y el fomento de las conductas de reciclaje. Se concluye que el manejo de los residuos es una herramienta educativa de gran valor por lo que se deben promover estrategias a nivel escolar, que involucren a toda la comunidad para maximizar el aprovechamiento de los desechos con base en su naturaleza. En este sentido, un plan educativo sobre el manejo de residuos orgánicos, corresponde a una herramienta orientada a generar, a futuro, una cultura de cuidado ambiental que ayude a mejorar la conservación de la comunidad.
Buenas prácticas ambientales para el manejo sustentable de aceites provenientes de lubricadoras en el Cantón Esmeraldas
Authors: Charcopa José
Published: September 2023

La aplicación de un esquema de buenas prácticas ambientales se enfoca básicamente en generar el reconocimiento de un proceso de operaciones asociadas a procedimientos estandarizados para garantizar, un servicio de calidad, con el cuidado y protección para un entorno, ambientalmente sano. Esto aumenta la demanda de acciones concretas dirigidas a abordar una gestión ambiental, con un estilo de producción más limpia; convirtiéndose en un esquema de buenas prácticas con una sistemática planeación de diferentes acciones para minimizar el impacto sobre el ambiente. Así, se desarrolla este estudio con el objetivo de proponer un conjunto de lineamientos básicos dirigidos a la conformación de un esquema de buenas prácticas ambientales para el manejo sustentable del aceite proveniente de las lubricadoras localizadas en el cantón Esmeraldas. Se siguió una metodología de carácter documental; donde se siguieron tres fases de trabajo: preparatoria, descriptiva e interpretativa. Los resultados, se enfocan en el significativo impacto de estas organizaciones sobre el ambiente; destacando particularmente, la naturaleza del proceso productivo desarrollado, los aspectos medioambientales generados, los potenciales riesgos laborales de los trabajadores. Las conclusiones establecen lo imprescindible de un enfoque por procesos dirigido a diseñar un plan de buenas prácticas ambientales en las empresas lubricadoras para obtener beneficios destacando: comprensión y coherencia para cumplir con los requisitos exigidos por el sistema; consideración de los procesos en términos de valor agregado; logro del desempeño eficaz de cada proceso; así como la mejora de los procesos con base en la evaluación de los datos e información.
Systematic study in Cressa cretica L. (Convolvulaceae) species from Lake Qarun, El-Fayoum province, Egypt
Authors: Wafaa Kamal Taia  , Amany Mohamed Abd El-Maged
Published: September 2023

Cressa cretica L. is a monotypic species belongs to the plant family Convolvulaceae, tribe Cresseae. It is an erect, small, dwarf shrub, commonly grown in coastal areas and considered as an important medicinal plant with many therapeutic effects. Individuals of this species became restricted in specific areas in Egypt in became under threat of extinction. This study dealt with careful examination of the external and leaf internal structure beside pollen grain morphology. The study aims to understand the species morphological characteristics and protect it from localization and destruction processes. The results showed that the leaf macro- and micro-morphological characters are of the halophytic ones, with long unicellular hairs as well as T-shaped hairs and sunken stomata. The leaf internal structure has mesophyll differentiated into one layer palisade and spongy layers full of ca-oxalate crystals and salt glands distributed in the mesophyll. Pollen grains productivity was few and they are small, spheroidal to subprolate with tricolporate aperture and tectate perforate with supra-tectum granules. The results obtained show that Cressa cretica has external and internal halophytic structure in addition to few small pollen grains. Germination experiments needed to test the pollen productivity of this plant under non-saline habitats for its conservation.
Epidemiologia das taxas de internação e de mortalidade por acidente vascular cerebral isquêmico no Brasil
Authors: Freitas Martins Maria Elvira , Zaccariotti Alice Jardim , Miranda Borges Athus Di Lucca , Oliveira Caixeta de Sousa Cristiely , Araújo Peres Luís Felipe , Porfírio de Oliveira Júnior Jairo
Published: September 2023

Introdução: O Acidente Vascular Cerebral Isquêmico (AVCi) é caracterizado pela oclusão de um vaso sanguíneo do cérebro com interrupção do suprimento de oxigênio, sendo a forma mais frequente de AVC, representando 87% dos casos. Dessa forma, o objetivo do presente estudo é avaliar a tendência das taxas de internação (TI) e mortalidade (TM) por AVCi por faixa etária entre 2011 e 2020.
Métodos: Trata-se de um estudo analítico, observacional e retrospectivo. Obtiveram-se o número de internações e óbitos por AVCi pelo Sistema de Informações sobre Mortalidade (SIM) e os dados populacionais do Instituto Brasileiro de Geografia e Estatística (IBGE). Calcularam-se a TI e TM por 100.000 habitantes, bem como suas tendências pela regressão linear segmentada. Obtiveram-se as variações percentuais anuais (APCs) com intervalos de 95% de confiança (IC95%).
Resultados: O Brasil apresentou 223210 internações e 23468 óbitos por AVCi no período. As TI e TM apresentaram-se maiores conforme a idade em todos os anos. Houve uma tendência decrescente tanto da TI (APC= -4,5) quanto da TM (APC= -7,9) para a população total. Com exceção das faixas etárias de 1 a 39 anos, as demais apresentaram TI decrescentes. Enquanto na TM, apenas a faixa etária entre 1 e 19 anos demonstrou tendência estacionária.
Discussão: O decréscimo da TI e da TM coincidiu com o período de implementação do programa Hiperdia cujo objetivo é vincular os portadores de hipertensão arterial sistêmica e diabetes mellitus às unidades de saúde, garantindo-lhes tratamento sistemático, o que previne os fatores de riscos modificáveis de grande impacto na ocorrência de AVCi.
Conclusão: É de suma importância a conscientização da população quanto aos fatores modificáveis para AVCi, assim como é necessário o aprimoramento profissional da equipe de atendimento, visto que um menor tempo para a abordagem é essencial para evitar piores desfechos.
Assessment of the Protection of Children under the Nigerian Data Protection Regulation 2019
Authors: Olubiyi Ifeoluwa A. , Kwame-Okpu Aghohovwia
Published: September 2023

Data protection which evolved out of the established notion of privacy to deal with threats posed to privacy by information communications technology is concerned with the use of laws and policies to regulate the collection and processing of personal data. This paper discusses the level of protection given to children under the Nigerian Data Protection Regulation which is the primary law on the subject matter in Nigeria. To achieve its aim, the paper examines the development of data protection as an offshoot of the established notion of privacy and the need to specifically protect children before discussing the level of data protection afforded children in Nigeria with a view to showing its adequacy or otherwise. The paper found that as a vulnerable group, children face privacy risks posed by information communications technology and may unknowingly disclose personal information due to several factors. So, it is necessary for data protection law to establish safeguards for their protection. The paper also found that the Nigerian Data Protection Regulation does not designate children as vulnerable groups. Further findings are that the law also does not adequately regulate the processing nor provide for the protection of personal data belonging to children and some of its inadequate provisions may adversely affect the effective protection of children’s privacy in today’s digital world. To remedy these shortcomings the paper makes some recommendations that can be implemented immediately and in the future before concluding.
Examination of the Tax Treatment of Cryptocurrency Transactions in Nigeria
Authors: Ahmed Isau
Published: September 2023

Tax is assessed and paid in the legal tender in which the transaction was conducted. A legal tender is a fiat currency centrally issued by the government through its Central Bank and is legally declared and designated as money to meet all kinds financial obligations including payment of taxes and debts within the boundary of a particular country. However, advancements in technology led to the emergence of virtual medium of payment such as ‘cryptocurrency’ which do not enjoy legal tender status like fiat currency. Over the past decade, there has been an increased number of transactions in Nigeria where cryptocurrency was the means of payment. This raises the question as to how such transactions will be assessed to tax bearing in mind that tax can only be assessed and paid in the currency in which the transaction was conducted. In addition, the virtual nature of cryptocurrency creates opportunities for tax avoidance thereby constituting a serious tax challenge for a developing country such as Nigeria. It therefore becomes necessary to address the taxation of cryptocurrency transactions to prevent tax avoidance that can arise therefrom. This objective of this article is toexamine the nature and the legal status of cryptocurrency. The article will also examine the tax treatment of cryptocurrency in some selected tax jurisdictions as well as the tax challenges posed by cryptocurrency transactions.
Investigating Personality Traits, E-Market Orientation and Firm Performance of Tourism Entrepreneurs in J & K
Authors: Bashir Neda Ul , Dar Shahnawaz Ahmad
Published: September 2023

This study, based on Jammu and Kashmir Tourism SMEs, examines the big five personality factors that impact business success. Further, E-marketing orientation has been taken as a mediator variable of the study. Data was collected from SME owners (hoteliers) in Jammu and Kashmir. Hotel owners were selected randomly and worked in the hospitality industry. The ultimate assemblage of SMEs to whom the questionnaires were distributed includes 386 people. PLS-SEM was utilised to investigate the associations between the study's variables. The study revealed a direct positive influence of Extraversion and Openness to experience on Firm performance. Further, Agreeableness has shown a negative and significant influence on firm performance. However, Conscientiousness and Neuroticism have shown insignificant results. In the context of e-marketing orientation, extraversion Agreeableness and Conscientiousness have also shown positive and Significant influence on e-marketing Orientation. While as e-marketing orientation has shown negative but significant results on firm performance. Further, e-marketing orientation has negatively mediated the relationship between extraversion and firm performance and Agreeableness and firm performance. Thus shows partial competitive mediation between the variables of interest. Conversely, e-marketing orientation does not show any mediating effects between firm performance and Conscientiousness, Openness to experiences and Neuroticism. The research adds to an enhanced understanding of the essential success factors and issues that entrepreneurs encounter. It can also aid in better understanding the personality qualities and e-market orientation required by entrepreneurs.
Edition 76 - Sexual Health	Discontinuation of Hormonal Contraception: A Systematic Review and Metanalysis
Authors: Roberts Joni K , McNabb Katherine C. , Bergman Alanna , Taskin Tanjila , Mualem Bella , Ogungbe Oluwabunmi
Published: September 2023

Introduction Around the globe, unintended pregnancy rates remain high, especially among women in low and middle-income countries. A major contributor is contraceptive discontinuation. This study aims to synthesize the rates of early hormonal contraceptive discontinuation (i.e., discontinuation prior to 12 months of use) and the impact of side effects on discontinuation. Methods A systematic review of seven databases covered articles published between 2011 and 2021. Observational studies that assessed choices about hormonal contraceptive use were included in the final review. As reported in each article reviewed, the pooled proportions of early contraceptive discontinuation rates were calculated using a random effects model. Qualitative and quantitative data about the influence of side effects on discontinuation of hormonal contraception were synthesized using a narrative approach. Results Fifty studies met the inclusion criteria. The pooled overall early discontinuation rate was 26% (95% CI: 21–32%). The pooled early discontinuation rates for short-acting hormonal methods like oral contraceptives and injectables were 42% (95% CI: 20–67%) and 21% (95% CI: 7–40%), respectively. Meanwhile, the pooled discontinuation rates for long-acting hormonal methods like implants and intrauterine devices were 22% (95% CI: 16–28%) and 17% (95% CI: 11–24%), respectively. The side effects mentioned most frequently as contributing to hormonal contraceptive discontinuation were abnormal bleeding, abdominal pain, nausea, vomiting, cramping, headaches, mood changes, and sexual and genitourinary side effects. Discussion/ Conclusion High rates of early contraceptive discontinuation persist with varying levels of discontinuation based on contraceptive type. Side effects play a major role in hormonal contraceptive discontinuation. However, there is a dearth of evidence on managing side effects, making this an important area for future research.
The Impact of Serum and Follicular Fluid Irisin on Oocyte and Embryonic Characteristics in Infertile Women Undergoing ICSI According to BMI
Authors: Dawood Sundus Ali , Jwad Mufeeda Ali , Mossa Hayder Ali Lafta
Published: September 2023

Background: Irisin is a recently identified myokine that acts like adipokines. It has been revealed to be connected with insulin resistance (IR), obesity, and metabolic syndrome. Objective: To investigate serum, follicular fluid (FF), irisin, and IR in lean, overweight, and obese women undergoing the intracytoplasmic sperm injection (ICSI) cycle and correlate them with oocyte and embryo quality. Methods: Ninety infertile Iraqi women aged 18 to 40 years had primary or secondary infertility. They were enrolled in this study and divided into three groups according to body mass index ranking: the first group: twenty-seven normal-weight females, the second group: thirty-five overweight females, and the third group: twenty-eight obese females. ICSI was done for them to evaluate the level of serum and follicular fluid Irisin with the Homeostatic Model Assessment for Insulin Resistance (HOMA-IR) at the day of oocyte pickup and correlate them to the outcome. Results: HOMI-IR, serum, and FF Irisin levels were significantly higher in obese people. Also, there was a significant difference between groups in regard to MII, oocyte maturity rate, grade 1 embryo, and pregnancy outcome, which was less in the obese group. In addition, there was a significant negative correlation between HOMI-IR and irisin levels in serum and follicular fluid with MII oocyte count, oocyte maturity rate, embryo grade 1, and pregnancy outcome. Conclusion: Serum, follicular fluid Irisin, and HOMA-IR were significantly higher in obese cases than in lean cases, which may cause a reduction in the ICSI outcome.
SCHEME OF FUNCTION STUDY AND METHODOLOGICAL APPROACH OF SKETCHING GRAPHS OF THE FUNCTIONS IN THE SCHOOL COURSE OF MATHEMATICAL ANALYSIS
Authors: Gasparyan S. , Ghulghazaryan L.
Published: September 2023

The article examines one of the most important topics of the high school
course "Elements of Algebra and Mathematical Analysis": scheme of function
study and methodological approaches to graph construction.
In RA the methods of sketching graphs of function are studied during the
high school course "Elements of Algebra and Mathematical Analysis" in two
stages: without using the concept of derivative (10th grade) and with the use of
the derivative (11th grade) [1, 2].
The derivative is introduced in the 11th grade during the step-by-step
study of a function, which facilitates the study of the properties of the
function. However, after analyzing the function with the recommended steps,
the students sometimes find it difficult to sketch the graph of the function
because they encounter a number of difficulties that are insurmountable due to
the lack of relevant knowledge.
This article recommends introducing the concepts of function convexity
(concavity), the inflection point during the teaching of second-order
derivatives in the 11th grade in basic mathematics streams of the high school
course "Elements of Algebra and Mathematical Analysis", which will
significantly simplify the process of sketching the graph of the function. As a
result, the course will be more comprehensive, and the outline of the function
study and sketching graphs will be more understandable to high school
students
PECULIARITIES OF TEACHING OLD ARMENIAN PREPOSITIONS
Authors: Hayrapetyan A.
Published: September 2023

The ancient Armenian language has always been in the spotlight: it is
interesting both as an ancient language, and as a religious language, and as a
language of source study, thanks to which it is studied both by pupils and
students of universities, seminaries and gymnasiums, as well as by Armenian
and foreign researchers who study Armenian ancient and medieval history and
culture. Naturally, in this case, the teaching of the subject is important.
Grabar, as a dead literary language, has teaching features. it is not a
language of living communication. This means that there are certain
difficulties in its study and especially in its assimilation. In this logic, of course,
the method chosen for learning is extremely important.
The choice of teaching methods is doubly important when it comes to
grammar rules that do not exist in this language, for example, possessive
pronouns, personal numbers, prepositions. The latter, being characteristic of
the ancient Armenian language, are no longer applicable in the modern
Armenian language, that is, they are difficult to understand by modern
Armenians and create certain difficulties in learning, which can only be
overcome by using the right type of classes, practical exercises, drawing
classifiers, etc.
That is why, in the article, we have examined and propose to use such
methods and methodical tricks during the teaching of Grabar, which are
successfully used in living languages with prepositions, such as in English and
Russian (preposition, preposition). comparing and comparing their teaching
with popular methods of teaching English and Russian, we have localized it for
teaching English
Harnessing aquaculture wastewater with Chlorella protothecoides for biodiesel and bioethanol production
Authors: Sudaporn Tongsiri  , Obaid Ahmad Bhat  , Rajeswaran Ramaraj  , Pimpimol Tipsukhon
Published: September 2023

The wastewater treatment potential of the microalga Chlorella protothecoides was investigated in the context of fish farming, and it is efficacy was further evaluated through cultivation at different inoculation levels to gauge pollutant removal efficiency. This study examines C. protothecoides for growth, nutrient removal, and biofuel potential. Climbing perch culture effluent (CPCE) mediums are employed for algal cultivation, with optical density (OD) measurements capturing growth dynamics that culminate on the 10th day in dense biomass accumulation. Nitrogen and phosphorus, key components of wastewater, exhibited substantial reduction. Ammonia concentrations decreased by 77.88%, nitrite by 93.75%, and nitrate by 95.67%. The most striking reduction was observed in phosphorus levels, with a remarkable 97.87% removal rate. Furthermore, the microalga's pigment composition was explored, showcasing high chlorophyll content, alongside significant carotenoids. High protein content (45.71 g/100 g) offers amino acids for bio-based materials and enzymatic catalysts. Carbohydrates (33.23 g/100 g) represent a valuable energy source for bioethanol production. Lipid content (8.64 g/100 g) suggests biodiesel potential, with unsaturated fatty acids comprising over 82% of the biodiesel content. The study underscores C. protothecoides's potential in growth, nutrient removal, and biofuel production. Therefore, this research contributes valuable insights into sustainable wastewater treatment and bioenergy generation technologies, with empirical data supporting the findings.
Autotrophic production of bio-functional proteins from freshwater microalgae using natural water medium for an economical and ecofriendly approach
Authors: David D-W. Tsai  , Rameshprabu Ramaraj  , Yuwalee Unpaprom  , Prakash Bhuyar  , Rajeswaran Ramaraj  , Paris Honglay Chen
Published: September 2023

As natural repositories of a broad spectrum of bioactive compounds ranging from pigments and enzymes to unique fatty acids and proteins, microalgae have attracted growing interest for their potential to produce bio-functional proteins. This comprehensive study examines the autotrophic cultivation of freshwater microalgae, focusing on protein production using a photobioreactor and natural water as the growth medium. The cultivation strategy eliminated the need for supplemented nutrients, enhancing environmental sustainability and cost- effectiveness. The study achieved a biomass production rate of 0.262 mg/L/day and a notable protein yield of 27.69 mg/L/day. Our findings support the feasibility and efficacy of employing natural water as a cultivation medium for freshwater microalgae for protein production. This approach alleviates the environmental burden associated with synthetic growth media and contributes to reducing operational costs. The study thus demonstrates the potential for this methodology to pave the way for a new, eco-friendly, and economically sustainable paradigm in the production of algal bio-functional proteins. Moreover, the widespread availability of natural resources makes this approach highly adaptable and scalable for larger production systems.
Climate change: Consequences for neglecting the early warnings a brief testimony
Authors: Rihashni Thivagaran  , Abu Bakar Nurul Huda , Karthick Murugan Palanisamy  , Bhuyar Prakash , Natanamurugaraj Govindan  , Ab. Rahim Mohd Hasbi , Maniam Gaanty pragas
Published: September 2023

To a great extent reversing the effects of climate change is almost unfeasible. The impact has grown to a near-final stage. The results certainly cost a lot to human beings. Humans undoubtedly initiated the current deteriorating state through their activities to achieve the so-called 'development'. On the other hand, the deterioration effects have not happened in one day but at a relatively slower pace with numerous indications (rise in temperature, sea level, CO2, land disappearing, unpredictable sudden weather changes) that have been missed or neglected. The most that can be done now is to reduce the deterioration rate, which is only possible with collective efforts from all nations, especially the top-emitting countries. Simultaneously, people must adapt to the ever-changing climate and its consequences by devoting themselves to early warning systems. This report highlights those early indications (warnings) and the effects by neglecting those warnings and suggesting adaptation by focusing on early climate information.
Pengaruh Metode Pembelajaran Brainstorming Terhadap Kemampuan Pemecahan Masalah Matematis Siswa di SMP Negeri 3 Mandrehe Barat
Authors: WARUWU SALOME , Telaumbanua Yakin Niat , Lase Sadiana , Zega Yulisman
Published: September 2023

This research is based on a preliminary study conducted by researchers during observations at SMP Negeri 3 Mandrehe Barat. The problem is that students' mathematical problem-solving skills still need improvement. This study aims to determine whether there is an effect of brainstorming learning methods on students' mathematical problem-solving ability. This type of research uses the quasi-experimental research method involving two groups that are given different treatments. The population of this study was all VIII classes of SMP Negeri 3 Mandrehe Barat, and two classes were selected by simple random sampling as research samples, namely class VIII-A totaling 20 students as an experimental class taught using the brainstorming learning method and class VIII-B 21 students as a control class taught using conventional learning methods. Data were collected through student mathematical problem-solving ability tests. Based on this research, the results of hypothesis testing are   and . Because   > , then Ho is rejected, and Ha is accepted that there is an effect of brainstorming learning method on students' mathematical problem-solving ability at SMP Negeri 3 Mandrehe Barat.
Effect of Production Process Management on Quality Control in The Iron and Steel Industry in Libya
Authors: Azouza Omer Ibrahim , Masaud Khairi Ahmed R
Published: September 2023

Quality is the crucial factor that determines a company’s ability to compete in the marketplace and survive. However, developing production process management is one of the most critical factors affecting quality control. Hence, this study aims to investigate the impact of the development of production process management on quality control in the Iron and Steel industry in developing countries. A quantitative approach was utilized to achieve the study’s goals. A total of 384 employees working in Libyan Iron and Steel Company were sampled during the data collection stage of this study. Structural Equation Modelling (SEM) was used to evaluate the impact of the development of production process management on quality control. The findings of this study showed a positive and significant impact of the development of production process management on quality control. This study offers practical implications, some recommendations for the direction of future research, as well as study limitations.
The Relationship of Academic Self-Efficacy to Academic Motivation of Junior High School Students From Families Towards Prosperity
Authors: Arif Furqon Muhammad
Published: September 2023

Every individual behaves based on motives. The existence of a motive makes behavior directed towards the goals to be achieved by someone. Someone who has the motivation, based on the existence of self-confidence called self-efficacy. Especially in an academic setting, students will be motivated if they have confidence in the achievements they will achieve. The purpose of the study was to determine the relationship between academic self-efficacy and academic motivation of junior high school students from Families to Prosperity. The subjects in this study were 134 State Junior High School students in grades VII and VIII from those belonging to families towards prosperity. This research design uses a quantitative approach with regression analysis. The results of this study indicate that academic self-efficacy has an influence of 34% on the academic motivation of KMS students. The results of this study indicate that there is a relationship between self-efficacy and academic motivation of students who come from families to prosper. Self-efficacy as an internal factor has a greater role than external factors in increasing the academic motivation of students with family backgrounds towards prosperity
Dry Eyes Post Laser Assisted in Situ Keratomileusis
Authors: Miraditi Ni Komang
Published: September 2023

Dry eye is one of the most common complications following laser-assisted in situ keratomileusis (LASIK), with nearly all patients experiencing some degree of postoperative dry eye symptoms. Postoperative dry eye affects approximately 50% of patients at 1 week postoperatively, 40% at 1 month, and 20%-40% at 6 months postoperatively. LASIK can cause intracorneal nerve damage, goblet cell damage caused by suction, and can cause changes in the shape of the central cornea. Dry eye diagnosis can be made using a questionnaire to determine the patient's history, examination of tear break up time, staining of the eye surface using fluorescein or lissamine green, and Schirmer's test. This reserech use Literatur Review Method. Post-LASIK dry eye complaints such as irritation, red eyes, foreign body sensation, pain, gritty, and photophobia. Management of post-LASIK dry eyes can be done by giving tear supplements, anti-inflammatory agents, ointments and eye patches, and treatment of meibomian gland dysfunction. Post-LASIK dry eye usually peaks within a few months after surgery, and then improves in most patients 6-12 months after surgery. Although dry eye signs and symptoms are most common in the immediate postoperative period and are usually only temporary, a minority of individuals experience chronic and severe dry eye
Evaluation of Digital Development Based on the International Digital Economy and Society Index 2020 Data
Authors: Tarjáni Janka Ariella , Kalló Noémi , Dobos Imre
Published: September 2023

Digitalization and technological advances develop together with our society. The European Commission intends to monitor this development using the International Digital and Society Index (I-DESI) and provide an objective comparison of the participating countries. This comparison of the counties can be an important part of the roadmap of digital transformation for companies and other participants in the market. The aim of this study is to further analyze the 2020 data of I-DESI using multivariate statistical methods not included in the official report. Our objective is to show whether there are differences between the EU and non-EU countries (discriminant analysis, variance analysis), whether the dimensions of the I-DESI index are overlapping (correlation analysis, factor analysis), and whether different country groups can be formed (cluster analysis). Answering these questions, we can give a useful tool to companies for a more successful digital transformation.