bluuebunny/crossref_metadata_2025 huggingface dataset:
The “Natural Time” Method Used for the Potential Assessment for Strong Earthquakes in China Seismic Experimental Site
Authors: Zhang Shengfeng , Zhang Yongxian
Published: February 2023

Due to the direct achieving for the state of stress or the strain along the earthquake fault which is quite essential in the assessment for the potential of strong earthquakes, the method of nowcasting earthquakes using the ‘natural time’ concept has been used in several locations worldwide and shown significant result. In this work, the Earthquake Potential Score (EPS) was determined using the nowcasting approach before several earthquake cases in the China Seismic Experimental Site (CSES) and analyze the consistency with the observation to evaluate its effectiveness. Firstly, with the importance of the data quality to this statistical method, we describe the background seismicity of the CSES area. Secondly, ergodicity research demonstrates the differences that exist in sub-regions such as Sichuan and the Yunnan region, mainly due to the simultaneous impact with the 2008 Wenchuan 8.0 earthquake. In the end, the strong earthquake potential prior to four earthquakes with magnitude larger than 6.0 was ultimately determined using the nowcasting method, which has EPS above 0.8. This may give support for the interpretation of EPS in earthquake nowcasting and will serve as a key reference for the ongoing development of this technology.
Freshwater Fish Migration: Fisheries Management Strategy Insight
Authors: Tut Deng Gatriay , Tsegaye Demisse Birtukan
Published: February 2023

Migration is a deliberate movement taken by animals for survival. It is commonly categorized as spawning, feeding, and refuge seeking migrations. Migration is governed by costs and benefits. Energy production and utilization is one of the greatest challenges of freshwater fish migration. The upstream and long-distance migrants demand more energy. Orientation and navigation mechanisms in fishes have a long history of interest. Different sensory mechanisms for accurate orientation have been suggested, including orientation using sun position, polarized light patterns, and the Earth’s geomagnetic field. Fish morphology plays a significant role in assisting freshwater fish’s migration. Long-distant migrants have streamlined body structure and longer caudal regions, while short-distance migrants are fusiform making them hard to move long distance against water current. Since fish migration may involve two different aquatic environments, all migrant fishes that cross the interface between freshwater and saline water habitats must therefore undergo physiological changes. Fish migration activities are influenced by abiotic factors including variations in water temperature, water level, and light availability. Human activities significantly affect fish migration. A good understanding of the migratory behavior of fishes is important for effective fisheries management. Fishermen and near-shore communities need to become aware about the nature of fish migration.
Plant Regeneration from Cassava Protoplasts
Authors: Feng Wen , Fu Hai-Tian , Luo Yan-Chun , Huang Jian-Qi
Published: February 2023

Cassava is an important crop for food, feed, and industrial raw materials. Given that traditional conventional breeding is restricted by various factors, biotechnology breeding has become an important breeding method. Tissue culture regeneration is the basis of biotechnology breeding. This chapter reviews the establishment and development of cassava tissue culture and regeneration systems and the technical processes of tissue culture and regeneration starting from the induction of explants of tissue-cultured cassava plantlets to embryogenic calli, isolation to protoplasts, culture to embryogenic calli followed by differentiation into embryos, and then sprouting, stemming, and rooting into complete plants. This chapter focuses on the technical processes from protoplast to complete plant and summarizes the important influencing factors of protoplast regeneration, which is the key and difficult point in the entire regeneration process of cassava protoplasts. This chapter aims to provide technical guidance for cassava protoplast regeneration, offer useful inspiration and reference for cassava tissue culture, and lay a foundation for the genetic improvement of cassava.
Perspective Chapter: The Learning Management System of 2028 and How We Start Planning for This Now
Authors: David Sankey Michael , James Marshall Stephen
Published: February 2023

It has been said for years that, in the near future the Learning Management System (LMS) will become a thing of the past. Some suggest this should already be the case, but it has not been possible to break our institutional dependence on this technology. In the meantime, institutions have developed sophisticated networks of tools, largely built off the back of LTIs and xAPIs to seamlessly make the LMS a pervasive convenor of learning. These tools include media streaming, virtual classrooms, collaboration tools, plagiarism checking, ePortfolio, voice interaction, peer-review/learning, brainstorming, H5Ps and the list goes on. All that is left for the traditional LMS to do is to mediate these tools, house and collate assessment and scaffold the different learning scenarios. Admittedly it also helps the institution link to other organizational tools such as student management and curriculum management systems. This chapter looks at the future implications and examines a range of views from technology enhanced learning professionals from across the sector. The views being canvased may provide institutions with a framework to help them consider their future directions and how the evolving technology landscape may see newer ways of using emerging technologies to better support or student cohorts.
Intense Regulated Pulsed Light (IRPL) for Dry Eye Treatment
Authors: Rojas Alvarez Eduardo , Pino Urias Naima
Published: February 2023

IRPL was traditionally used for the treatment of a variety of dermatological diseases such as rosacea. However, third-generation equipment was created specifically for periocular application with multiple homogeneously sculpted pulses “It is the only IRPL device medically certified to treat Meibomian Gland Dysfunction.” Several hypotheses or effects of how the device works have been proposed. Ablation of the small telangiectatic vessels around the eyelid, elimination or reduction of the ectoparasite Demodex, which resides in the meibomian glands and consumes meibum secretions in patients who have rosacea, photomodulation of the glands stimulates cellular activity, improving the micro and macro structure of the meibomian glands. In addition, the modification would decrease the inflammation surrounding them.
Abattoirs: The Hidden Sources of Plants’ Heavy Metals and Other Pollutants in Lagos, Nigeria
Authors: Lawrence Ogun Mautin , Solomon Anagun Olajide , Kayode Awote Olasunkanmi , Opeolu Oluwole Surukite , Christiana Kappo Sesi , Oseremi Alonge Faith
Published: February 2023

Abattoirs are places where animals are slaughtered and processed for human consumption leading to the production of huge wastes. Abattoir wastes contain several pollutants, most of which have growth limiting effects on soil microbes, plants, animals, and the entire ecosystem. A larger fraction of these wastes contains heavy metals. Heavy metals present in abattoir wastes are often acquired by plants through bioaccumulation, biomagnification and bioconcentration and remain persistent via food chain in the ecosystem. Most abattoirs in the developing nations such as Nigeria (Lagos) lack good personnel, equipment, and healthy practices. These ineffective management practices often provide bedrock for the occurrence of several negative effects evident in disease, disruption of wellness and so on. To prevent this effects, good abattoir waste management such as burying, composting, rendering, anaerobic digestion, blood processing, incineration with proper policies, laws and regulations must be put in place and enforced by necessary government agencies especially in Lagos State, Nigeria to minimize the pollutants released into the ecosystem. .
Provocation: prolonged maturation of beer is of unproven benefit
Authors: Bamforth Charles
Published: February 2023

Approaches to brewing are suffused with dogmatic insistence that certain techniques are unequivocally linked to the delivery of quality products. Amongst these belief sets is the perseverance with prolonged maturation (or ‘conditioning’) times post-fermentation. Historically the justification for these lagering techniques was to allow settling of solids, carbonation, flavour maturation and removal of chill haze entities. As science and technology have advanced it is unequivocally the case that solids and chill haze precursors can be dealt with in short order and without the need for lengthy treatments. 
Equally it is perfectly possible to deliver specified levels of carbonation without the need for all the carbon dioxide to be introduced via yeast action. However, there remain many who feel that the nature of carbonation differs depending on which approach is taken. Herein lies one of the research areas that the author proposes. The perception of carbonation is not primarily due to bubble release on the palate, but rather is through the detection of carbonic acid. Is there a difference in the availability of this form of the gas depending on the mode of carbonation and to what extent does the adsorption of the carbonic acid on polypeptides in the beer have a role to play? 
In terms of flavour, the advocates for lagering insist that there needs to be a handling of vicinal diketones, acetaldehyde, and hydrogen sulphide. However, all of these can be controlled through attention to primary fermentation. Then, the proponents for maturation insist that there is a desirable release of non-volatile materials into beer, which substances supposedly benefit the balance and mouthfeel of the lager. These include amino acids and nucleotides. It seems to this author however that the likeliest explanation for the greatly increased levels of these materials and of pH is autolysis of yeast. This, together with the disadvantageous impact of increased free amino nitrogen and higher pH on aspects such as biological stability, flavour stability and foam, should convince any brewer that there is a sound argument for avoiding the prolonged contact of beer with yeast. Indeed, a metabolomic approach to studying changes in non-volatile substances under conditions where there is little or no autolysis, revealed no detectable changes in any entity. 
The author is open to being convinced that there are yet unidentified materials that are developed (whether through the action of viable yeast or by yeast autolysis) as beer is stored, substances which can be proven through sound organoleptic investigation to benefit the flavour of beer. Perhaps the Japanese term kokumi is what we are looking for here: ‘rich taste’. This is believed to be afforded by γ-glutamyl peptides and, inter alia, these are to be found in yeast extracts. Herein lies the second experimental approach that the author recommends for pursuit.
Accounting Practice In North Borneo: Changes Within 1881-19411
Authors: Mail Rasid , Mahadi Rozaidy , Noordin Raman
Published: February 2023

The dynamic of accounting practice as part of social system is acknowledged. It interacts with environment to respond to environmental pressure and the ever changing needs of enterprise. This has extended the understanding of accounting from a mere technical and neutral practice to a socially and politically related activity. As such efforts have been devoted to understand how accounting changed and developed over time in public and private sector. Historical investigation is getting popular in an effort whereby accounting development is narrated through societal development concerning social, economical and political phenomenon. This is particularly important in the context of public sector whereby historical aspects of accounting practice describe previous practice, explain the existing practice, and prescribe the future practice of accounting. The mobilisation of accounting practice in social, economical and political phenomena describes and provides informative and authoritative evidence on the relationship of accounting to its environment and consequently on how accounting change occurred. This could lead to a prescription, practically, on how to manage and harness accounting change. This paper presents evidence of such a claim through a historical investigation on accounting change phenomena during the colonial era in North Borneo. Such a comprehensive investigation that covers the period of 61 years (1881-1941) provides a thick description to understand the previous practice and how it influences the accounting in practice currently. Extensive review on archival documents in the Archive Department of Sabah illuminates evidence of accounting change process during the period under study. Keywords: Accounting changes, history, North Borneo, imperialism, colonialism, British North Borneo Chartered Company.
The Expectation Of Accountant General’s Department Of Malaysia Towards Future Accountants’ Skills
Authors: Ilias Azleen , Abd Razak Mohd Zulkeflee , Shakina Sarah , Rosman Syafiqa Razan
Published: February 2023

Nowadays, employers are expecting capable and competent graduates to be hired in fulfilling organizations’ goals and objectives. Same goes to public sector organization as facing by Accountant General’s Department of Malaysia (AG) in ensuring their future accountants acquired both soft skills and hard skills. Today, future public sector accountants will face more challenging working style since they are being needed to be more effective in enhancinggovernance, accrual accounting, reporting, auditing and overall accounting practices. Thus, the important of skills and knowledge being needed has been explored and discussed in this current research particularly from the perspective of public sector. In this research, five important skills have been identified to be important for future accountants in order to be employable. The skills are team work, time management, problem solving, communication andknowledgeinaccounting theory and practice. Furthermore, most employees fromAG was expected that future accountants must be able to work in group, competent to organize workload in meeting deadlines, able to integrate multidisciplinary knowledge to solve problems, proficient to listen and understand information and able to use data, evaluate risks in solving a real world problems. The findings can assist AG in enhancing and improving the competency of junior and future accountants in early stage of being part of AG through internal or external training. Besides that, the important of every skills perceived by employers can facilitate the future accountants to be prepared prior joining AG as public accountants in any of AG unit. Keywords: Accountant General’s Department (AG), skills, team work, time management, problem solving, communication, knowledge in accounting theory and practice, accountants
Cash Economy Dan Ketidakpatuhan Cukai Di Kalangan PKS Sektor Pembinaan Di Malaysia
Authors: Mashadi Muhammad Aqbal , Ramli Rosiati , Palil Mohd. Rizal , Jaffar Romlah
Published: February 2023

The tax environment in Malaysia is still facing the problems of non-compliance. It has become more critical due to the existence of activities under cash economy among small and medium-sized businesses (SMEs). Although many studies on tax compliance have been done, there are still limited discussion on the form or condition referred to as tax non-compliance. Hence this study details out the forms of tax non-compliance based on four situation which are: (1) no registration; (2) late or no submission of tax return; (3) no income reporting or under statement of income; (4) late no payment of income tax. The term cash economy is still new in Malaysia’s tax environment. It is also known as parallel, black, hidden, underground and shadow economy. Most tax literatures refer cash economy as tax non-compliant activities that effect most countries in the world including Malaysia. Therefore the focus of this study is to identify which categories of SMEs in Malaysia that are involved in activities of cash economy, especially from the construction sector which has been indicated as highly involved with tax non-compliance. The results showed that in 2013, 44% of the SME samples in the construction sector did not comply, and out of that 84% were involved in cash economy. The finding also showed that the action of not registering, late or not submitting the tax return were the most dominant. On the other hand, civil engineering and micro-sized businesses are the most dominant SMEs of the construction sector in Malaysia that involve in tax non-compliance. The result of this study are highly relevant to the Inland Revenue Board of Malaysia in developing tax compliance strategies and at the same time adding value to the collection of tax literatures. Keywords: tax non-compliance (register, filing, reporting and payment); cash economy; small and medium enterprise (SME); construction sector.
Obesity: a clinician’s perspective
Authors: M Baillie Hector
Published: February 2023

I am sometimes referred to as a medicine/geriatric specialist, but I credit geriatricians with a lot more smarts with the elderly (osteoporosis, cognitive decline, movement limitations, social interaction) than I do. But I might call myself an internal medicine/metabolic syndrome doctor, given the size and shape of my referral population. In Roman times, it was a sign of success and wealth to be overweight. I remember seeing a statue on top of a sarcophagus (of the occupant), who in life was clearly obese. It was also a defence against disease and famine, which were unpredictable in occurrence and life-threatening in severity. Intermittent war, blight, and social upheaval made the lot of our ancestors quite grim.
Spintronics and Optical Properties of Advanced Bio Materials
Authors: Srivani Alla
Published: February 2023

Spintronics is an interactive combination of electronics and magnetics that has grown in popularity in the twenty-first century as nanotechnology has advanced. Spintronics is a new type of electronics that employs mutual control of magnetic and other physical signals, such as electrical and optical signals. Spin current has recently received a lot of attention as a basic idea in spintronics. Understanding spin current entails deciphering the mechanisms underlying the mutual control of diverse physical signals, which should lead to future advances in spintronics. The notion of spin current and its historical context are discussed first in this chapter, followed by a discussion of innovative materials for spintronics. Much attention is also dedicated to the physical phenomena that result from the coupling of spins.
Effect of Ozone Layer Depletion on Advanced Materials
Authors: Srivani Alla
Published: February 2023

From ozone exposure can result in significant economic losses due to the higher costs of maintenance, upkeep, and replacement of these materials. Common plastic materials' outdoor service life is restricted by their vulnerability to sun UV radiation. The UV-B component of the solar spectrum is highly effective in causing photo damage in manufactured and naturally occurring materials. This is especially true with plastics, rubber, and wood utilised in the construction and agriculture industries. Any drop in the stratospheric ozone layer and resulting increase in the UV-B component of terrestrial sunlight will therefore tend to reduce the service life of these materials. However, estimating the extent to which the service life is shortened is challenging because it is dependent on various factors.
Organisasi Sosial Keagmaan; Persyarikatan Muhammadiyah, Tokohnya dan Kegiatannya Dalam Bidang Pendidikan
Authors: Salito  , Bahaking Rama  , Muhammad Rusdi Rasyid
Published: February 2023

The Muhammadiyah organization was born out of KH's anxiety. Ahmad Dahlan in education, thus establishing one of the religious social organizations namely the Muhammadiyah Association in the field of education. In this case, we can see that education in Muhammadiyah is divided into three levels, namely; Informal education is education that is held in the family or household, community. Non-formal education organized in the community and at school. Formal education held in schools Muhammadiyah's outlook on life will always be closely related to the objectives of the Muhammadiyah organization itself. In formal education, levels of education will be made, from kindergarten, elementary, junior high, high school to university, in this case the Islamic movement, da'wah, and tajdid. The Muhammadiyah organization has also placed education as one of the media to achieve the goals of this socio-religious organization. Apart from being strategic, this placement has brought tremendous success in the context of educating Muslims and the Indonesian nation. As one of the vehicles to play an active role in educating the nation's children.
Application of the new periodontal classification: Part 2
Authors: Nolan Michael , Aljudaibi Suha Aljudaibi , Harrison Peter , Winning Lewis
Published: February 2023

The World Workshop on the Classification of Periodontal and Peri-implant Diseases and Conditions was convened in 2017 and resulted in the publication of a new classification system in 2018.1 This replaces the formerly used 1999 (Armitage) Classification.2 The complete Workshop proceedings are available to clinicians for free online via the European Federation of Periodontology (EFP) website.3

The new process for diagnosing and classifying cases of periodontitis incorporates staging and grading of each case.4 At its simplest, the stage represents an interpretation of periodontitis severity and the complexity of management of the case. The grade provides supplemental evidence on the historic rate of disease progression, and can help to identify cases where risk factors exist and/or where expected outcomes of therapy may be less favourable.5

Diagnostic decision trees may be of value to practitioners in applying the new classification in daily practice. The current series utilises the decision tree published by the British Society of Periodontology (BSP),6 as this arguably represents the simplest approach to classifying periodontitis cases.
Análisis de la formación universitaria en España de los profesionales sanitarios y del deporte para la prescripción de ejercicio físico en el ámbito de la salud.
Authors: Martínez-Majolero Víctor
Published: February 2023

El objetivo fue analizar las competencias y contenidos relativos al ejercicio físico en los planes de estudio de los grados de las profesiones sanitarias de: Medicina, Enfermería y Fisioterapia, y las competencias y contenidos relativos al ámbito de la salud de los profesionales de las Ciencias de la Actividad Física y el Deporte. Se llevó a cabo una investigación descriptiva, donde se han revisado y analizado los planes de estudios de los distintos grados. Se encontraron un total de 42 Universidades de Medicina, 60 de Enfermería, 54 de Fisioterapia y 40 de Cafyde. La formación recibida por el personal sanitario y los profesionales de Cafyde para prescribir ejercicio físico es escasa e incompleta. Por ello, sería interesante la revisión y modificación de los planes de estudios creando itinerarios especializados (menciones) en distintos ámbitos para aumentar las horas de formación en ejercicio físico como medio de tratamiento de enfermedades.
Asociaciones entre actividad física y rendimiento académico en estudiantes con altas capacidades
Authors: Infantes-Paniagua Álvaro , Bustos Juan Gregorio Fernández , Ruiz Ascensión Palomares , Jordán Onofre Ricardo Contreras
Published: February 2023

Este estudio pretendió determinar la asociación entre la actividad física y el rendimiento académico en una muestra española de estudiantes con altas capacidades (AACC). Se llevó a cabo un estudio transversal con una muestra de 219 preadolescentes y adolescentes con AACC. La actividad física se midió a través del cuestionario PAQ-A y el rendimiento académico mediante el autoinforme de las notas globales y de las asignaturas de Lengua, Matemáticas, Lengua extrajera y Educación física. No se hallaron correlaciones significativas, salvo con Educación física. Cuando se realizaron análisis por sexo, se hallaron correlaciones positivas entre la actividad física y el rendimiento académico en chicos. Además, se presentaron indicios de una posible relación cuadrática en forma de U invertida en chicas. Se probaron modelos de regresión incluyendo variables socioeconómicas y culturales que no resultaron significativos para la actividad física. Se discute la existencia de un importante efecto techo, así como de otros elementos, que podrían explicar estos resultados. A pesar de ello, se argumenta que el alumnado con AACC podría beneficiarse de la actividad física. La futura investigación debe encargarse conocer cómo y en qué medida la actividad física puede ser beneficiosa en el rendimiento académico del alumnado con AACC.
Necesidades psicológicas básicas según factores académicos y saludables en adolescents de la ciudad de Granada
Authors: Castro-Sánchez M. , Cuberos-Gámiz E. , Lara-Sánchez A.J. , García-Mármol E.
Published: February 2023

Se realizó un estudio de tipo descriptivo y corte transversal, el cual perseguía como objetivo definir las necesidades psicológicas básicas en Educación Física (EF) según diversos factores académicos y deportivos como la calificación en EF o el tipo de deporte practicado. Participaron un total de 168 sujetos (14,90±0,71 años de edad) de 3º y 4º curso de la ciudad de Granada, empleándose como instrumentos la escala NPBEF (Moreno et al., 2008). Para el análisis de los datos se utilizó el software SPSS® versión 23.0. Los resultados revelaron que los adolescentes varones poseían una necesidad de autonomía más elevada. Se observó que aquellos que obtenían mayores calificaciones y obtenían beca mostraban una mayor necesidad de competencia en EF. Asimismo, los sujetos que practicaban Actividad Física (AF) de forma extraescolar poseían una mayor necesidad de competencia y relación. De forma específica, los jóvenes que practicaban deportes individuales con contacto poseían mayor necesidad de competencia, mientras que los que practicaban deportes colectivos con contacto mayor necesidad de relación. Como conclusión, señalar el interés de promocionar motivaciones intrínsecas en EF a través de necesidades psicológicas básicas dada su relación positiva con las calificaciones y una mayor práctica deportiva extraescolar.
Buckling behavior of spiral stiffened sandwich FGM cylindrical shells with porous core under axial compression using the FSDT
Authors: Nguyen Hoang Quan , Vu Minh Duc , Nguyen Thi Phuong , Le Ngoc Ly , Nguyen Thi My Trang
Published: February 2023

The linear buckling behavior of functionally graded cylindrical shells with porous core stiffened by spiral stiffeners under axial compression using the first-order shear deformation theory is presented in this paper. The improved Lekhnitskii’s smeared stiffeners technique is applied for shear deformable spiral FGM stiffeners. Approximate analytical solutions are assumed to satisfy the simply supported boundary conditions and the adjacent equilibrium criterion is applied to obtain closed-form relations of buckling loads. Effects of the number of FGM stiffeners, stiffener angle, volume fraction index and porosity coefficient on the buckling behavior of shells are numerically investigated.
Effect of weather aging on volume expansion properties of steel slag
Authors: Trinh Hoang Son
Published: February 2023

Steel slag, one of the huge industrial waste sources, which has many outstanding advantages (hardness, roughness, angularity, and abrasion resistance) has been used as an aggregate in asphalt concrete to bring many benefits. However, steel slag is rarely used in Portland cement concrete because of concerns that it may give rise to volume expansion. One of the main causes of this problem is that the steel slag contains a considerable amount of free lime. This free lime content can be reduced if it is hydrated or the steel slag is aged by water. Therefore, in this study, the effects of weather aging on volume expansion properties of steel slag will be considered. The pH, free lime and volume expansion tests were carried out on weather-aged steel slag samples (after aged by 1 month, 6 months, 12 months and 30 months) and compared with non-aged one. The results showed that the 6 month-aged, 12 month-aged, and 30 month-aged steel slag samples had low free content, low pH and volume expansion. Moreover, steel slag aged more than 6 months has very low volume expansion, meeting the requirements of ASTM D492 for use as aggregate in concrete.
Nghiên cứu xây dựng phương trình hồi quy giữa cường độ chịu nén, độ thấm ion clo với các thành phần của bê tông muội silic bằng phương pháp quy hoạch thực nghiệm Taguchi
Authors: Nguyễn Long Khánh , Nguyễn Thị Tuyết Trinh
Published: February 2023

Đất nước Việt Nam có đường bờ biển dài, khí hậu nhiệt đới gió mùa ẩm, do đó các công trình bê tông cốt thép trong khu vực biển phải chịu ảnh hưởng rất lớn từ các yếu tố có hại (ion clo, sunphat, cacbonat hóa…) gây ra hiện tượng ăn mòn cốt thép bên trong, làm suy giảm tuổi thọ của các công trình. Trong những năm gần đây, có nhiều nghiên cứu phụ gia muội silic nhằm cải thiện độ bền bê tông, đặc biệt là cải thiện cường độ chịu nén và độ thấm ion clo. Bài báo có mục đích xây dựng phương trình hồi quy giữa đặc tính cường độ chịu nén, độ thấm ion clo và tỷ lệ nước/chất kết dính (N/CKD), hàm lượng muội silic (MS) của bê tông muội silic thông qua phương pháp Quy hoạch thực nghiệm (QHTN) Taguchi.
Nghiên cứu giảm phát thải cho động cơ diesel lắp trên xe tải cỡ nhỏ bằng bộ lọc DPF
Authors: Nguyễn Công Đoàn , Vũ Ngọc Khiêm , Trần Trọng Tuấn , Nguyễn Diệp Thành
Published: February 2023

Hiện nay, một trong những giải pháp hữu hiệu để giảm phát thải cho động cơ diesel là sử dụng các bộ xử lý khí thải nhằm đáp ứng tiêu chuẩn khí thải đang ngày càng được thắt chặt. Bài báo trình bày các kết quả nghiên cứu, đánh giá khả năng giảm phát thải của bộ lọc DPF khi được lắp trên đường thải động cơ diesel trang bị trên các phương tiện vận tải đang lưu hành bằng phần mềm mô phỏng AVL-Boost. Kết quả nghiên cứu cho thấy hiệu quả giảm phát thải đáng kể của bộ lọc DPF đồng thời không ảnh hưởng đáng kể đến tính năng kỹ thuật-kinh tế của động cơ. Kết quả nghiên cứu là cơ sở để nghiên cứu thiết kế, chế tạo, lắp đặt và thử nghiệm hiệu quả giảm phát thải của bộ lọc DPF trên động cơ diesel lắp trên các phương tiện vận tải đang lưu hành tại Việt Nam.
Predicting Bike-Sharing Demand Using Random Forest
Authors: Ngo Thu-Tinh T. , Pham Hue T. , Acosta Juan G. , Derrible Sybil
Published: February 2023

Being able to accurately predict bike-sharing demand is important for Intelligent Transport Systems and traveler information systems. These challenges have been addressed in a number of cities worldwide. This article uses Random Forest (RF) and k-fold cross-validation to predict the hourly count of rental bikes (cnt/h) in the city of Seoul (Korea) using information related to rental hour, temperature, humidity, wind speed, visibility, dewpoint, solar radiation, snowfall, and rainfall. The performance of the proposed RF model is evaluated using three statistical measurements: root mean squared error (RMSE), mean absolute error (MAE), and correlation coefficient (R). The results show that the RF model has high predictive accuracy with an RMSE of 210 cnt/h, an MAE of 121 cnt/h, and an R of 0.90. The performance of the RF model is also compared with a linear regression model and shows superior accuracy.
Investigation in manufacturing self-healing cementitious materials using microbial technology
Authors: Tran Van Quan , Giap Van Loi
Published: February 2023

Small cracks are inherent in cementitious-based structures. This causes deterioration of buildings, reducing the bearing capacity of structures due to the invasion of harmful substances as well as corrosion of reinforcement in cementitious material. Therefore, the cementitious material needs to be restored and these voids filled. Self-healing cementitious material has been strongly developed for long time in the world. However, this technology has not been popular in Vietnam. Therefore, the aim of this paper is to find the appropriate mix-design for creating self-healing cementitious material in Vietnam conditions. Experimental results show that the mixture including bacillus subtilis and calcium lactate can be used for creating the self-healing cementitious materials. Mixing directly the mixture in the cement is selected to manufacture the self-healing cementitious materials. It seems that the width of crack affects more on healing ability than the length of crack.
Tác động của cấu trúc kiểm soát nội bộ đến hiệu quả tài chính tại các doanh nghiệp ngành xây dựng niêm yết trên thị trường chứng khoán Việt Nam
Authors: Hoàng Thị Hồng Lê  , Đỗ Thị Huyền  , Phan Thùy Dương
Published: February 2023

Bài báo trình bày sự ảnh hưởng của cấu trúc kiểm soát nội bộ đến hiệu quả tài chính của các doanh nghiệp ngành xây dựng niêm yết trên thị trường chứng khoán Việt Nam. Nghiên cứu được thực hiện trên dữ liệu sơ cấp thu thập bằng bảng câu hỏi  và dữ liệu thứ cấp thu thập từ báo cáo tài chính của các doanh nghiệp xây dựng niêm yết trên thị trường chứng khoán Việt Nam được lấy mẫu. Kết quả nghiên cứu thực nghiệm cho thấy doanh nghiệp xây dựng có môi trường kiểm soát lành mạnh, việc đánh giá rủi ro được thực hiện tốt, việc thực thi đúng và đủ các quy trình được thiết kế phù hợp, việc truyền thông hiệu quả, việc giám sát tốt thì doanh nghiệp thường có hiệu quả tài chính tốt.
Đề xuất lựa chọn tổ hợp phụ gia chống ăn mòn cho bê tông trong môi trường xâm thực
Authors: Nguyễn Thu Ngà , Nguyễn Anh Tuấn
Published: February 2023

Việt Nam với đặc điểm có đường bờ biển trải dài hơn 3000 km nên rất nhiều công trình xây dựng bằng kết cấu bê tông cốt thép nằm trong môi trường xâm thực cao. Việc sửa chữa, bảo trì các kết cấu này là rất khó khăn, tốn kém, thậm chí không làm tăng được tải trọng khai thác đáp ứng theo các tiêu chuẩn hiện hành. Do vậy khi xây dựng các công trình mới cũng như công tác bảo trì công trình sau này, đặc biệt là các công trình dọc ven biển (trong vùng khí hậu biển) đặt ra yêu cầu phải có được độ bền chống xâm thực của môi trường. Để chống lại tác động ăn mòn này cần tạo được lớp bê tông bảo vệ đặc chắc và chống ăn mòn cao. Trong phạm vi nghiên cứu, bài báo bước đầu đưa ra việc lựa chọn phụ gia phù hợp để cải thiện độ bền cho bê tông giúp cho công trình được bảo vệ an toàn hơn.
The Dispute Over a Children’s Book Related to Sex Educatio
Authors: Penova Paulina
Published: February 2023

The sexual education of kids is an important topic, which despite its delicacy should be publicly discussed and analysed so that it can be helpful primarily for parents. As their children's first teachers, parents are often faced with the intimate questions, asked by their children and for which answers they are not prepared. The possibilities for sex education of kids are numerous and one of them are the books, which encourage families to talk with their children about these topics. The present text explores the appearance of one such book on the Czech marke
Hate speech in election campaigns
Authors: Mateeva Elena
Published: February 2023

The democratization of the public communications language extends to the election campaigns as well. The desire to find convincing messages that set the political organization apart from its opponents has made us witness a violation of the good tone of political speech. In order to trace the language used during the July 11 parliamentary election campaigns, a review of the online publications of parties and coalitions (websites and Facebook profiles) was conducted. The research shows hostile rhetoric from almost all parties, using different methods of hate speech, incl. doublespeak, veiled hostility, presenting opponents as a public threat, etc.
Motivación y ansiedad de estudiantes de Introducción a la Economía (FCEyS-UNMdP) durante el aislamiento por la COVID-19
Authors: Actis Di Pasquale Eugenio
Published: February 2023

En este estudio se realiza un análisis sobre el grado de motivación de los estudiantes universitarios durante la pandemia. En particular, se llevó a cabo la encuesta MSLQ a quienes cursaron la asignatura Introducción a la Economía de la Facultad de Ciencias Económicas y Sociales (UNMDP) durante el primer cuatrimestre de 2021. La metodología utilizada incluye el test de confiabilidad α de Cronbach, los test de medias U de Mann-Whitney y H de Kruskal Wallis y el coeficiente de correlación de Pearson. La consistencia interna del cuestionario es elevada, por ende, resulta confiable. Los resultados obtenidos permiten afirmar que los valores más preocupantes se encuentran en el nivel de motivación extrínseca y de ansiedad, los cuales se encuentran asociados inversamente con el rendimiento académico. Al mismo tiempo, quienes promocionaron la materia tienen los valores más elevados de motivación y el menor nivel de ansiedad.
Talent or not talent: unclothing a competence
Authors: Riera Prunera Maria Carme , Marimon Viadiu Frederic , Mas Machuca Marta
Published: February 2023

One of the main objectives of higher education institutions (HEIs) is to equip individuals with skills, tools, and resources to explore and develop their talent and provide the labour market with highly skilled workers. In other words, students should be prepared to address social and economic changes in a balanced way, which is not an easy task to do. Literature detects discrepancies among the competences that the HEIs include in their programs, the skills that students acquire, and those required according to the employers. This research aims at addressing these discrepancies (Hergert, 2009 and Stephen and Knouse, 2008) by focusing on the different phases where these gaps have been generated. The information obtained from the application of the procedure proposed should be useful for HEIs and help reduce the existing gaps, thus contributing to fostering talent and employability.
Café literario, una herramienta para el desarrollo de la habilidad comunicativa en el estudiante de ingeniería
Authors: Ocañas Galván Cyntia , Alfaro Cázares Neydi Gabriela , Estrada Carvajal Alpha Iris , Habib Mireles Lizbeth
Published: February 2023

El proyecto de Café Literario se ha implementado por más de tres años a los estudiantes de la facultad de ingeniería de una universidad pública, ubicada en el noreste de México. El objetivo principal ha sido desarrollar la competencia comunicativa, además de otras habilidades blandas. El programa se realizó de manera presencial hasta la llegada de la pandemia del Covid-19, donde se hicieron los ajustes que se consideraron pertinentes para mantener encuentros literarios a distancia. Estos se muestran en el presente trabajo, donde se utilizó una metodología cualitativa de observación descriptiva. Se mencionan los resultados obtenidos, ciertas aportaciones de los estudiantes y las conclusiones. También se incluyen algunas recomendaciones para poner en práctica en la continuación de este proyecto.
Validación del constructo “calidad docente virtual” en universidades presenciales sometidas a la docencia semipresencial
Authors: Chuliá-Peris Lourdes , Escorihuela Guillem
Published: February 2023

Esta investigación pretende conocer cómo las universidades tradicionalmente presenciales han adaptado la evaluación docente que se realiza a través de las encuestas del alumnado al curso semipresencial al que se vieron sometidas en 2020-2021 por la emergencia sanitaria de la Covid-19. A través de la revisión de encuestas de satisfacción docente de universidades valencianas y su posterior comparación con encuestas de universidades españolas virtuales, se categorizan los ítems para buscar el constructo calidad docente en estas circunstancias a partir de las frecuencias más altas. Los resultados indican la necesidad de ahondar en preguntas que aborden la semipresencialidad.
Minority press and control in the Ottoman State and the Republic of Turkey: the example of the Armenian press
Authors: Ulu Cafer , Ozden Kemal
Published: February 2023

In line with the stages that humanity has gone through, the technique of putting information on paper with symbols has evolved gradually. Modern printing techniques evolved from early printing techniques and materials. Subjects of the Ottoman Empire closely followed advances in Europe, and the printing press was introduced there. Armenians significantly advanced printing and publishing in the Ottoman and Turkish Republic eras. They established printing facilities and published books, periodicals, newspapers, and other things. While carrying out these activities, they sometimes received awards, but they had problems in some periods. Due to some of the contents in the materials they published, they were punished such as closing the newspapers and magazines, having the books confiscated, or not being brought into the country. The Turkish government has also closely followed materials published abroad. While examining the minority press in the Ottoman and Turkish Republics, this article focuses on the Armenian press.
Effect of detection and control of financial fraud on performance of Nigerian deposit money banks - a conceptual review
Authors: Ahmed Ibrahim , Abubakar Nuruddeen , Garba Hauwa Ahmad , Hamzah Mohammed Abubakar
Published: February 2023

The growing upsurge of fraud and forgery circumstances in the banking sector in modern times incited this study. This problem is considered important given the role of banking sector in the economic growth and development. This paper reviewed the current scenario on financial fraud detection and prevention in Nigerian deposit money banks. The main aim is to examine the connections between acts of violence, responses, and the roles of deposit money management in Nigerian banks. The study made use of previous works that were drawn from recent journal articles on related concepts such as textbooks, and earlier academic investigations relevant to the topic. Literatures pertaining to the specific topics were reviewed using the content analysis technique. The study's conclusion is that crime has a detrimental impact on DMBs in Nigeria and that it is important to handle fees, checks, account openings, and securities carefully to prevent fraud against financial institutions, especially DMBs in Nigeria. The conclusion will be supported by a review of relevant literature and empirical review. However, it was concluded that control measures have considerably boosted the deposit money institutions' financial performance in Nigeria. The inclusion of fraud control measures has never been deceptive in Nigeria. It is suggested that there should be a strong connection between all stakeholders in fraud management and Deposit Money Banks in relations to fraud detection and control. Direction for future research was also covered.
Persepsi Masyarakat Pesisir dalam Pengelolaan Hutan Mangrove Biak Timur Kabupaten Biak Numfor
Authors: Rante Irwan
Published: February 2023

Pertumbuhan penduduk di wilayah pesisir, mempengaruhi beberapa kebutuhan seperti, lahan untuk pemukiman, perkebunan, budidaya perikanan, dan penggunaan lainnya. Hal ini menyebabkan banyak lahan mangrove yang rusak. Penelitian ini bertujuan untuk mengetahui persepsi masyarakat terhadap fungsi dan peran hutan mangrove serta pengelolaan ekosistem hutan mangrove yang lestari. Lokasi penelitian berada di wilayah pesisir Biak Timur. Teknik pengambilan sampel dalam penelitian ini dilakukan secara sengaja (purposive sampling). Responden yang diambil terdiri dari masyarakat yang ditentukan dengan menggunakan pendekatan statistik untuk tingkat kesalahan 10% dari populasi. Pengambilan sampel menggunakan teknik Simple Random Sampling atau metode slovin. Dengan jumlah masyarakat pesisir Biak Timur sebanyak 2.805 jiwa dan 691 KK. Maka jumlah sampel yang akan diambil adalah 88 responden yang mendiami kawasan mangrove serta yang secara ekonomi memanfaatkan kawasan mangrove di Biak Timur, dan yang mewakili berbagai profesi/pekerjaan pada lokasi penelitian diantaranya pekerjaan sebagai PNS/pegawai swasta atau tenaga honorer lainnya di perkantoran, pekerjaan sebagai tukang batu/tukang kayu, pekerjaan bertani, pekerjaan nelayan, responden yang telah pensiun, responden yang bekerja sebagai wiraswasta. Teknik analisa data yatiu menganalisa tingkat persepsi masyarakat dalam pengelolaan hutan mangrove dengan membuat tabulasi data (skor, frekuensi, persentase), dari setiap data/ jawaban.  Hasil penelitian menunjukan bahwa Persepsi dan pemahaman masyarakat Biak Timur tentang manfaat dari keberadaan hutan mangrove bagi kehidupan mereka berada pada kategori skala likert 3 (baik), dengan jumlah sebesar 78,41%.
PEMBERDAYAAN EKONOMI MASYARAKAT MELALUI WAKAF PRODUKTIF DI KOTA PADANG PANJANG
Authors: Octaviani Rizda
Published: February 2023

Pemberdayaan adalah upaya meningkatkan daya kelompok yang kurang beruntung dapat dilihat dari kelas, ras/etnisitas, dan gender dengan tujuan bidang ekonomi suatu kelompok sebagai sasaran yang berada di bawah garis kemiskinan dapat mengelola usahanya guna menciptakan kesejahteraan masyarakat. Hubungan wakaf dengan kemiskinan, di mana wakaf merupakan kegiatan yang mencerminkan tanggungjawab sosial dalam mengatasi faktor-faktor penyebab kemiskinan. Berdasarkan data dari Badan Wakaf (BWI) Provinsi Perwakilan Sumatera Barat, bahwa jumlah harta wakaf di Kota Padang Panjang adalah 79 lokasi dengan luas 105174.25 m2, yang sudah melakukan pengelolaan harta wakaf produktif berjumlah 7 lokasi, sedangkan dilapangan ditemukan 8 lokasi yang sudah melakukan pengelolaan harta wakaf produktif, sebagai berikut: (1) Masjid Nurul Huda Ganting; (2) Masjid Nurul Iman Silaiang Bawah; (3) Perguruan Islam Darul Hikmah; (4) Masjid Raya Jihad; (5) Perguruan Thawalib Padang Panjang; (6) MAN Gunung; (7) Thawalib Gunung; dan (8) Masjid Asasi Sigando. Berdasarkan hasil analisa yang didapatkan, menyimpulkan adalah kebijakan dalam pemberdayaan ekonomi masyarakat adalah (1) pelayanan pendidikan; (2) mendorong munculnya wirausaha dan peningkatan akses pengembangan SDM. Ditinjau dari aspek ekonomi publik, secara fungsional dengan upaya pemecahan masalah-masalah ekonomi, seperti pengentasan kemiskinan (bantuan terhadap anak yatim), kesenjangan sosial akibat dari perbedaan dalam kepemilikan kekayaan. Kontribusi lembaga wakaf dalam pendidikan adalah mampun menyediakan sarana pendidikan baik secara kuantitatif maupun kualitatif.