bluuebunny/crossref_metadata_2025 huggingface dataset:
Characterization of the boron layer formed by pack boronizing of binary iron-niobium alloys
Authors: Teker Tanju , Karakurt Eyyüp Murat
Published: September 2019

In this study, Fe-1Nb, Fe-5Nb and Fe-10Nb (at.-%) binary alloys were boronized by the pack boronizing method at 950 °C for 3 h. The effect on the boride layer of the increasing niobium amount in pure the iron was experimentally investigated. After boron treatment, microstructural changes occurring on the surfaces of the coated alloys were examined by SEM, EDS and XRD analysis. A microhardness test analysis was applied to the coated alloys. Typical saw tooth morphologies were present in all coated alloys. The increasing niobium amount in the pure iron suppressed the appearance of the saw tooth morphologies. In addition, the microhardness of the boron layers was much higher than that of the base metal.
Effects of multi-pass cutting during wire electrical discharging
Authors: Selvakumar Gurusamy , Balasubramanian Velayutham , Vijayan Sundaravel , Lenin Nagarajan
Published: September 2019

In recent years, the use of wire electrical discharge machining (WEDM) has gained momentum for processing hardened alloys. The machining of a hardened alloy commonly reveals poor surface finish and poor corner accuracy. In order to improve the machining performance, multi-pass cutting was employed during wire EDM of Monel 400 alloy. In this work, multi- pass cutting is achieved by one rough cut followed by two trim cuts. Control factors such as offset distance, pulse-on time (Ton), corner angle, flushing nozzle height, pulse-off time (Toff), open circuit voltage and wire tension are selected as control factors in so far as the process criteria results in reduced speed, corner error and surface roughness. The experiments were carried out using Taguchi design, and the results were analyzed. These showed that surface finish and corner accuracy were improved if the machining had been performed with a single trim cut. The outcome of the results revealed that the use of a trim cut more than once adversely affects the productivity and accuracy of the products in question. Moreover, a comparative study on (i) a single pass cut versus a trim cut (ii) a trim cut versus path modification was carried out.
Influence of Ultrasonic Transducer Structural Parameters on the Frictional Plasticizing Heat Generation of Polymer Particles
Authors: Li X. , Tian H.-G. , Zhang W.-W. , Zhang S.-C.
Published: September 2019

This paper explores the influence of structural parameters of ultrasonic transducer on the frictional plasticizing heat generation of polymer particles. A three-dimensional model of the interfacial friction plasticizing heating was established, and a transducer with different structural parameters was designed and analyzed. The actual output longitudinal vibration excitation of the transducer obtained by simulation analysis was directly loaded into the heating model, which further investigated the effect of various structural parameters on the frictional plasticizing heating process and temperature distribution of polymer particles. The results demonstrated that the interfacial friction plasticizing heating temperature of polymer particles increases nonlinearly with the longitudinal vibration excitation time, and the heat generation is a transient process. The amplification ratio has the greatest influence on the interfacial friction plasticizing heating rates of polymer particles, followed by both front cover length and piezoelectric ceramic pieces thickness; the effects of length of rear cover, horn and ultrasonic tool head are the smallest. The present work provides an effective basis for further studying the ultrasonic plasticizing of polymer particles in ultrasonic micro-molding.
Effect of Annealing Temperature on PP Microporous Membranes Obtained by a Melt-Extrusion-Stretching Method
Authors: Liu Z.-Y. , Wu X.-T. , Yan J. , Yang W. , Yang M.-B.
Published: September 2019

Isotactic polypropylene (iPP) precursor film with highly oriented lamellar structure was produced through a melt extrusion-annealing-uniaxial stretching (MAUS) process. The precursor films were annealed at various temperatures and the structure evolution of precursor films during various annealing temperatures and the pore formation of the annealed film during stretching were investigated. During annealing, recrystallized lamellar structure was formed to obtain “core-shell sandwich” structure. The thickness of newly formed lamellae increased with annealing temperature, which improved the ability of slipping resistance of the original lamellar structure during stretching. As the annealing temperature of precursor film increased, the micropore shape and diameter of the final membranes became more uniform. The porosity of the microporous membranes increased with increasing annealing temperature.
Korelasi Antara Perencanaan Pembelajaran Dengan Hasil Belajar Di SMPI Baburrohmah Mojosari Mojokerto 2017-2018
Authors: Munawaroh Mas’ulil , Muhaimin Abdul
Published: September 2019

In order to realize a quality learning process, it requires professional teachers, especially in planning learning which is teacher preparation before implementing the learning process when the learning process takes place. Planning is determining what will be done. Planning contains a series of broad decisions and explanations of objectives, determination of policies, determination of programs, determination of specific methods and procedures and determination of activities based on daily schedules. This research took place at the Baburrohmah SMPI, Jurangsari Hamlet, Middle Hemisphere Village, Mojosari District, Mojokerto Regency. The type of research in this study is included in quantitative and qualitative research. The technique used to collect data on whether the teacher prepares a learning plan well in the teaching and learning process is a questionnaire (questionnaire) that has previously been tested for validity and reliability according to the standards. Subsequent data analysis was carried out with the help of the SPSS version 22.0 computer program to determine the level of contribution between independent variables and bound and histogram. Based on the results of data analysis regarding the relationship of learning planning with student learning outcomes, it can be concluded that: there is a relationship between learning planning with learning outcomes of class VIII students of SMPI Baburrohmah but very low and not significant. This is evidenced by the value of r-count (0.145) ranging from 0,000 to 0.200, and r-count (0.145) is smaller than r-table (0.254) at a significant level a = 0.05. The magnitude of the relationship (Coefficient of Determination) between Learning Planning (variable X1), with Learning Outcomes (variable Y) class VIII Baburrohmah SMPI in 2016/2017 amounting to 02.11%, the remaining 91.89% is influenced by other factors.
TINJAUAN KRIMINOLOGI TERHADAP TINDAK PIDANA PENIPUAN JUAL BELI ONLINE
Authors: Susanto Wahyu Adi , Hendrawati Heni , Basri Basri
Published: September 2019

This study discusses the overview of Criminology Crime Against Scams Buy Sell Online. Who in real life is very rife due to the lack of security and surveillance conducted by public authorities, so that many victims of criminal fraud and selling online, supported and easy to commit a criminal act of buying and selling online with a variety of modes available. To resolve the problem it should be known what are the factors that caused the criminal act of buying and selling online in terms of criminology. And how do the efforts of law enforcement officers in dealing with criminal fraud and selling online.

Writing of this method normative empirical research that aims to make the data in a systematic, factual, and accurate about the facts and what happens on the field sebenrnya. With a data sekuder and as a source of primary data. Factors that cause the Crime Fraud Buy Sell Online influenced by various factors such as economic factors, environmental factors, social and cultural factors, factors easily commit crimes of fraud and selling online, factor the lack of risk of being caught by
The Regulatory Model for Eradication Corruption in Infrastructure Funding
Authors: Fitriyaningrum Julyatika , Arifin Ridwan
Published: September 2019

This study aims to identify the causes and formulate a regulatory model for the eradication of Corruption in regional infrastructure development funds in Indonesia. This research was conducted by examining cases and laws related to Corruption. Some of the causes of corruption in regional development funds are: 1)Historical Factors; 2)Economic Factors; 3)Cultural Factors and 4)Institutional Factors. Although all four factors have been identified, there are still many countries that have not succeeded in eradicating corruption. An extraordinary crime requires extraordinary effort. The Government of Indonesia needs to formulate legislative policies with those manifested in specific deviant provisions. In addition, there are four approaches that are needed, namely legal approach, moralistic-religious approach, socio-cultural approach, and educational approaches. Massive actions must also be taken in various regions to start an anti-corruption measure.
Law Enforcement of Street Vendors by the Civil Service Police Unit
Authors: Fariza Tama Fasa , Sintha Dewi Dyah Adriantini , Syafingi Habib Muhsin
Published: September 2019

This study aims to analyze the implementation and identify the obstacles to control of street vendors (PKL) by the Civil Service Police Unit (Satpol PP) in Temanggung Regency. This research was conducted with a qualitative approach through in-depth interviews with Satpol PP Officers. Secondary data was obtained from legal materials consisting of Regulation of the Minister of Home Affairs Number 54 of 2011 concerning Operational Standards for Civil Service Police Procedure and Regional Regulation of Temanggung District Number 12 of 2011 concerning Cleanliness, Beauty, Order, and Environmental Health. The data analysis technique used in this research is descriptive qualitative. The results showed that controlling the street vendors conducted by Satpol PP was carried out through several stages, namely 1) coaching and socialization; 2) issuing warning letters, and; 3) demolition of merchant stalls. This control effort has not been able to reduce the number of street vendors who break the rules. Constraints faced in the efforts to control street vendors, among others: 1) the rules which are used as the basis for control are still general in nature; 2) there is no specific location for the existence of street vendors; 3) sanctions are regulated only in the form of criminal sanctions; 4) human resources/personnel of Satpol PP are still lacking; 5) lack of coordination across Regional Apparatuses, and; 6) public awareness (PKL) is still low. Thus, Temanggung District Regulation Number 12 of 2011 concerning Cleanliness, Beauty, Order, and Environmental Health has not been effective in generating PKL compliance with regulations.
Comparison of Immediate Effect of New Knee brace and Conventional Three-Points Knee Valgus Brace on Knee Adduction Moment and ROM in Patients with medial Knee Osteoarthritis
Authors: Rezaei M , Saeedi H , Hajiaghaei B , Khademi-Kalantari Kh , Arazpour M
Published: September 2019

The knee unloader brace can change loading on knee which may be effective in reducing symptoms and progression of disease in people with knee osteoarthritis. The purpose of this study was to evaluate the effect of a new knee brace during walking in a patient with medial compartment knee osteoarthritis. Two brace types were used: new brace and conventional brace. A pneumatic cuff of novel brace was fitted in the bottom of the medical slipper that were connected to the cuff section of the knee through the tube. After the knee brace is deployed, its force can vary in different stages of the gait. During the heel strike, the weight of the cuff is compressed on the floor, causing the air to flow inside it and entering the volume of air into the knee pad. The results of using this pneumatic knee brace compared with conventional knee braces on a patient showed that in both cases, the open and closed palatal pump, the adduction moment and ROM was decreased in the stance phase. But the three-point knee pressure, however, was less effective in reducing the adduction moment but also reduced the knee ROM. Using novel brace can eliminate the patient’s need for painful and costly surgery to reduce the symptoms of osteoarthritis.
Etika Penawaran Jual Beli dalam Telaah Hadits Ahkam
Authors: Dewi Chan Sukma Sari
Published: September 2019

How does Islam laid the foundations of supply ethics in buying and selling transactions? This question will be answered in this article by exploring the hadiths related to the basic principles and ethics of buying and selling in Islam. This ethic is endowed with buyers and sellers who seek to safeguard the interests and feelings of each party. These hadiths are tested using the سوم and بيع keywords then grouped according to the subject matter. These hadiths are then analyzed to gain a complete understanding of the ethical buying and selling offerings in Islam.
Perberdayaan Santri Melalui Pendidikan Kecakapan Hidup
Authors: Umam Aguswan Khotibul
Published: September 2019

Pesantren’s roles include providing life skill and internalizing Islamic principles in real life contexts. This research was focused on the empowerment of students’ life skill: personal skill,thinking skill, social skill, academic skill, and vocational skill at Pondok Pesantren Darul A’mal Metro Lampung. The students were trained on life skills through several trainings: reciting Islamic classical book,computer and IT, fahmil Qur’an, tilwatil Qur’an, public speaking skills, calligraphy, tahkfid nadzom, hadroh, syaril Qur’an; and the students also have opportunity to follow shalawat singing training and pencak silat sport such as Persaudaraan Setia Hati and Pagar Nusa. In order to succeed these programs, all stakeholders should cooperate to develop students’ life skills according to teaching vision and mission of the Pondok Pesantren.
Keadilan Gender dalam Pendidikan Islam di Pondok Pesantren
Authors: Sumaryati Sumaryati
Published: September 2019

This paper describes gender justice in Islamic education in Islamic boarding schools that has not been done optimally. This is due to cultural constraints which have resulted in a less gender responsive policy, namely the patriarchal system. In the patriarchal system men control women's work. The implication is that santri occupy the main authority in the pesantren environment. In analyzing the nature and culture theory, women and their functions are identified with "life", placing themselves close to nature. While men are placed as a group entitled to fill the public sector. In boarding schools, generally still treat santri with the dichotomy of the role. As a result santri have limited access to activities outside the pesantren. Subordination to students is also evident from the lack of opportunities to appear in public. Because something that is mass and prestigious is considered a male area. Finally, the experience gained by the santriwan was greater. The impact of the provision received by students for preparation for plunge in the community is not as big as santriwan.
PENDIDIKAN MUSLIMAH BERCADAR DI PESANTREN BER-MANHAJ SALAFI DI KOTA METRO
Authors: Wahyudin Wahyudin
Published: September 2019

The rapid development of the salafi movement in Indonesia is inseparable from their main approach, namely, purification and education. In the realm of education, there is a phenomenon of the emergence of various salafi schools in various regions in Indonesia, including in the city of Metro, Lampung. Two topics related to the Islamic education system in salafi pesantren and the position of women in salafi pesantren were the questions this research was based on. This research was a qualitative-descriptive study. Data collection was done by direct observation, documentation, and in-depth interviews. The results of the study showed that in terms of the teaching method, the salafi pesantrens in Metro city were not too different from the learning systems in other Islamic boarding schools. Meanwhile, for salafi women, Islamic boarding schools provide a special program for women they call tarbiyah al-nisa'.
PENDIDIKAN ISLAM DAN PERKEMBANGAN PSIKOLOGI GENDER PADA PENYANDANG DISABILITAS HAMBATAN PENDENGARAN
Authors: Solihin Solihin
Published: September 2019

This paper describes Islamic education and the development of gender psychology in persons with hearing impairments. One aspect that supports the implementation of Islamic education is the aspect of psychology. Psychology studies can touch directly on the personality structure of students, so that it can facilitate the process of information transformation. The quality of one's gender intelligence depends on the process of growth and development psychologically. The religious and cultural values ​​that develop in society also influence the psychological maturity of each gender. Hearing barriers are part of a separate problem in Islamic Education. Understanding this psychological condition is an important thing that must be done by everyone, especially educators because it is related to the development of the soul of deaf children. Psychological classification of deaf children who have been exposed above can facilitate learning that is carried out by educators, partially and in the context of the true purpose of Islamic education.
PENGARUH KONSERVATISME AKUNTANSI DAN PENGHINDARAN PAJAK TERHADAP NILAI PERUSAHAAN
Authors: Zulfiara Puradinda , Ismanto Juli
Published: September 2019

Aim of this research is to determine the effect of accounting conservatism and tax avoidance on firm value. The type of data used in this study is secondary data in the form of annual reports of manufacturing companies listed on the Indonesia Stock Exchange (IDX) for the 2013-2016 period. The number of samples is 48 manufacturing companies. The data analysis technique used is regression analysis. The results of the study show that conservatism has a positive effect on firm value, tax avoidance has a negative effect on firm value. While simultaneously conservatism and tax avoidance have a positive effect on firm value. Thus this study supports that accounting conservatism has a role as a function of monitoring the company's investment policies and one way to maintain the value of the company in limiting losses that may arise from poorly performing investment decisions. The company that conducts tax avoidance (has a smaller effective tax rate) is an effort made by management to reduce the company's tax burden and is able to minimize expenditure for tax purposes so that management looks good in the eyes of shareholders.
PENGARUH STRUKTUR MODAL DAN PERUBAHAN LABA TERHADAP NILAI PERUSAHAAN PERDAGANGAN ECERAN DI BURSA EFEK INDONESIA
Authors: Tobing Vargo Christian
Published: September 2019

The conduct of this research aims to see how the influence of capital structure and changes in earnings on firm value. The population in this study are retail trade sub-sector companies in the Indonesia Stock Exchange. Determination of the sample using purposive sampling method. The samples studied in this study were 9 companies. The results of the study concluded that the capital structure measured by the ratio of debt to equity ratio has no significant effect on firm value, earnings changes have no significant effect on firm value, and simultaneously, capital structure and earnings changes have no significant effect on firm value.
PENGARUH STRATEGI GREEN TOURISM DIFFERENTIATION TERHADAP KEPUASAN DAN MINAT KUNJUNG ULANG WISATAWAN HUTAN MANGROVE DI KABUPATEN KEBUMEN
Authors: Pratama Marynta Putri , Wibawanto Sigit
Published: September 2019

Differentiation of green tourism towards satisfaction and interest in tourists visiting mangroves in Kebumen District. In 2017 Kebumen Regency is developing the natural tourism sector, one of which is the tourism of mangrove forests which is designated as ecotourism. Based on the number of visitor reports, which is known to occur in a significant number of visitors. Some visitors are visitors who visit again. For this reason, it is necessary to examine the marketing strategy development model that is able to assess factors that can increase competitiveness and tourist visits, as a basis for developing natural tourism in other natural attractions. The research methods used are quantitative descriptive surveys. The population in this study is mangrove tourists who have visited more than twice in one year. The sampling technique in this study uses convenience sampling. The statistical test tool used is path analysis with the help of the SPSS version 22 program.Keywords: Green Differentiation Tourism, Satisfaction, Revisiting Interests.
The Analisis Job Satisfaction, Job Insecurity dan Turn Over Intention Studi kasus pada PT Indomarco Prismatama Magelang
Authors: Irfatah Mohamad , Kurniawati Agustaria , Wening Nur
Published: September 2019

Good human resource management needs to be done in order to retain employees who show performance so they do not have the desire to leave and or resign (turnover intention) to other companies and or competitors. The objectives of this study are: (1) To find out and analyze Job Satisfaction of PT Indomarco Prismatama employess in Magelang City; (2) Know and analyze Job insecurity of employees of PT Indomarco Prismatama in Magelang City; (3) Know and analyze Turnover Intention of employees of PT Indomarco Prismatama in Magelang City. This research is a quantitative descriptive research using the employees of PT Indomarco Prismata- ma in Magelang City, the research is based upon 50 respondents who are permenant employress of PT. Indomarco Prrsmatama in Magelang City. The analytical method used in the research is descriptive statistical analysis. The results of the analysis show that on average, with regards to Job Satisfaction; employees felt very good at PT Indomarco Prismatama in Magelang City. However, Job Insecurity at PT Indomarco Prismatama in Magelang City is low, and turnover intention of PT Indomarco Prismatama employees in Magelang City is low.

Keywords: Job Satisfaction, Job Insecurity, Turnover Intention
PENGARUH KETAATAN ATURAN AKUNTANSI DAN PERILAKU TIDAK ETIS TERHADAP KECENDERUNGAN KECURANGAN AKUNTANSI DENGAN PENGENDALIAN INTERNAL SEBAGAI VARIABEL PEMODERASI (Studi Pada Perusahaan-Perusahaan Swasta Di Provinsi Jawa Tengah)
Authors: Suwandi Eko Darmawan
Published: September 2019

ABSTRAK

Kasus kecenderungan kecurangan akuntansi di Indonesia terjadi secara berulang-ulang. Media massa banyak memberitakan hal tersebut sehingga bagi masyarakat kasus kecenderungan kecurangan akuntansi sepertinya bukan rahasia lagi. Pada sektor publik kecenderungan kecurangan akuntansi dilakukan dalam bentuk kebocoran anggaran pendapatan dan belanja negara. Di sektor swasta bentuk kecenderungan kecurangan akuntansi juga terjadi dalam bentuk yang sama yaitu ketidaktepatan dalam membelanjakan sumber dana. Penelitian ini bertujuan untuk menganalisis pengaruh ketaatan aturan akuntansi dan perilaku tidak etis terhadap kecenderungan kecurangan akuntansi dengan pengendalian internal sebagai variabel pemoderasi.

Metode penelitian yang digunakan dalam penelitian ini adalah explanatory research, yang akan menjelaskan hubungan kausal antara variabel independen tersebut terhadap variabel dependen melalui pengujian hipotesis Dalam penelitian ini, peneliti mengumpulkan data primer dengan cara kuesioner. Kuesioner diberikan kepada Kepala Bagian Akuntansi dan Staff Keuangan Perusahaan-Perusahaan Swasta di Provinsi Jawa Tengah yang dijadikan sampel penelitian atau responden penelitian. Sedangkan analisis data yang digunakan antara lain uji asumsi klasik dan analisis regressi linear berganda.

Berdasarkan hasil penelitian diketahui bahwa (1)  Ketaatan aturan akuntansi berpengaruh positif dan signifikan terhadap kecenderungan kecurangan akuntansi. Artinya semakin taat Perusahaan-Perusahaan Swasta Di Provinsi Jawa Tengah dalam menerapkan aturan akuntansi akan menyebabkan kecurangan akuntansi semakin menurun; (2) Perilaku tidak etis berpengaruh positif dan signifikan terhadap kecenderungan kecurangan akuntansi. Artinya semakin meningkat perilaku tidak etis dalam perusahaan akan menyebabkan kecurangan akuntansi semakin meningkat; (3) Pengendalian internal berpengaruh positif dan signifikan terhadap kecenderungan kecurangan akuntansi. Artinya semakin efektif pengendalian internal dalam perusahaan akan menyebabkan kecurangan akuntansi semakin menurun; (4) Pengendalian internal secara positif dan sinifikan dapat memperkuat ketaatan aturan akuntansi dan pengaruhnya terhadap kecenderungan kecurangan akuntansi. Artinya semakin efektif pengendalian internal menyebabkan ketaatan akuntansi dalm perusahan semkain meningkat dan mendorong kecurangan akuntansi semakin menurun; (5) Pengendalian internal secara positif dan sinifikan dapat memperkuat perilaku tidak etis dan pengaruhnya terhadap kecenderungan kecurangan akuntansi. Artinya semakin efektif pengendalian internal menyebabkan perilaku tidak etis dalam perusahaan semakin menurun dan mendorong kecurangan akuntansi semakin menurun.

 

Kata Kunci: Ketaatan Aturan Akuntansi, Perilaku Tidak Etis, Kecenderungan Kecurangan Akuntansi, Pengendalian Internal
Adsorption Efficiency of Activated Carbon Produced from Corn Cob for the Removal of Cadmium Ions from Aqueous Solution
Authors: Ernest Ezeh , Onyeka Okeke , C. M. Aburu , C. C. Aniobi , J. O Ndubuisi
Published: September 2019

Studies were carried out to evaluate the adsorption efficiency of activated carbon produced from corn cob for the removal of Cd II ions from aqueous solution. The studies were carried out with due consideration of standard analytical procedures and instrumentation. Increase in the Cd II ions concentration from 90 to 180mg/l decreased the adsorption capacity of the adsorbent from 89.273 to 65.770%. Increase in the adsorbent’s dosage from 0.5 to 2.0g increased the adsorption of Cd II ions from 81.522 to 91.980%. At pH of 5.0, the adsorption process attained equilibrium with a peak adsorption of Cd II ion at 93.628%. At a contact of time of 30mins between the adsorbate (Cd II ions) at the adsorbent; the adsorption of Cd II ions reached a peak value of 92.410%. The adsorption of Cd II ions on the surface of the activated carbon increased from 90.436 to 93.210% with increase in temperature from 40o to 160oC. The decrease in Gibb’s free energy of adsorption of Cd II ions on the surface of the activated carbon revealed that the adsorption was favourable at high temperatures. The positive values of ∆H and ∆S shows that the adsorption process was endothermic.
Self-regulation in Mathematics Courses for Engineering Based on Study and Research Paths
Authors: Cepeda Lenin Augusto Echavarría , Luis Rey Díaz Barron , Vargas Yazpik Hernández
Published: September 2019

Several studies have shown that there is a positive correlation between self-regulation and the academic performance of students. Self-regulated learning is the set of processes that the learners deploy to achieve their personal goals and that have to do with the learning strategies they use, with the answers they offer when evaluating the effectiveness of learning and with the motivations they have. To this end, the Study and Research Paths (SRPs) strategy is proposed to encourage better self-regulation processes in the students of the Unidad Profesional Interdisciplinaria de Ingeniería Campus Guanajuato (UPIIG) of the Instituto Politécnico Nacional (IPN). This strategy was proposed by Yves Chevallard within the framework of the Anthropological Theory of the Didactic and the World Questioning Paradigm. Students of the courses of Numerical Methods and Numerical Analysis of the academic programs of engineering in: Aeronautics, Automotive Systems, Biotechnology and Pharmaceutical formed the study group. This research work presents the analysis of the results of the initial phase of the measurement of the evolution of the self-regulatory processes that students use in the development of engineering projects that need the application of numerical methods for the analysis of situations, the decision making and the development of new products.
Definition of Derivative Function: Logical Error in Mathematics
Authors: Kalanov Temur Z.
Published: September 2019

The critical analysis of the foundations of the differential calculus is proposed. Methodological basis of the analysis is the unity of formal logic and of rational dialectics. It is shown that differential calculus is fictitious mathematical theory because the concept of the limiting process is the starting point for definition of the derivative function. The passage to the limit “zero” in the definition of the derivative function signifies that the variable quantity takes the only essential value “zero”. This fact leads to the following errors. (1) The definition of the derivative function is based on the violation of the necessary and sufficient condition for the validity of the relationship between the increment of the function argument and the increment of the function because the increment of the function is divided by the zero increment of the argument in the case of the limiting process. (2) The definition of the derivative function is based on the contradiction which is that the increment of the argument is both zero and not zero in the same relationship. This contradiction represents a violation of the formal-logical law of identity and of the formal-logical law of the lack of contradiction. (3) The definition of the differential of function is based on two contradictory (mutually exclusive) features: the differential of the argument is not zero while the increment of the argument in the definition of the derivative function is zero.
KOMORBIDITAS GANGGUAN PEMUSATAN PERHATIAN DAN HIPERAKTIVITAS PADA ANAK
Authors: Tantiwi Olga Fanny
Published: September 2019

GPPH merupakan bagian terbesar dari anak yang dibawa orangtua untuk berobat ke psikiater anak. Anak GPPH yang dirujuk ke klinik banyak yang menunjukkan gangguan lain yang menyertai diagnosis utama yang disebut sebagai komorbiditas. Sangat penting untuk mendeteksi kehadiran komorbiditas ketika anak didiagnosis GPPH karena dapat menjadi tantangan diagnostik, manifestasi akan lebih kompleks serta prognosis akan lebih buruk dibandingkan dengan anak-anak dengan GPPH saja. Tujuan penelitian untuk mengetahui jenis gangguan komorbid pasien anak GPPH, perbedaan faktor risiko pasien anak GPPH dengan komorbiditas maupun tanpa komorbiditas. Penelitian ini menggunakan desain deskriptif kuantitatif, dengan teknik total sampling. Terjangkau 84 kasus paisen anak GPPH di RSJD Atma Husada Mahakam Samarinda periode 2015-2018 dan didapatkan sebanyak 18 (21%) pasien anak GPPH tanpa komorbid, 52 (62%) memiliki 1 komorbid dan sebanyak 14 (17%) pasien yang memiliki >1 komorbid. Gangguan Spektrum Autisme(GSA) merupakan jenis gangguan komorbid terbanyak yaitu terdapat 28 (35%) kasus. Faktor risiko yang paling menonjol dari pasien anak GPPH dengan komorbiditas adalah faktor natal dengan persentase 39% dan faktor pengasuhan parsial yaitu sebanyak 18%, sedangkan faktor risiko yang paling menonjol dari pasien anak GPPH tanpa komorbiditas adalah faktor postnatal dengan persentase 33% dan tidak adanya kasus yang ditemukan sebagai faktor pengasuhan parsial.
Early Clinical Outcomes Following Laparoscopic Vs. Open Mesh Repair of Inguinal Hernia 85
Authors: Faisal M Fardil Hossain , Islam KM Saiful , Khan Md Manir Hossain , Biswas Arup Kumar , Azad Mohammad Abul Kalam , Reza Md Nahid
Published: September 2019

Background: As a part of modern surgical procedure, laparoscopic mesh repair of inguinal hernia should be safe, effective and have a short period of convalescence.

Objective: This study was designed to compare the outcome following inguinal hernia repair, performed by laparoscopic technique and open mesh Lichtenstein (tension-free) repair.

Materials and Methods: This prospective quasi experimental study was carried out in the department of surgery, Bangabandhu Sheikh Mujib Medical University, for a period of twelve (12) months. Total thirty six patients of inguinal hernia were included in this study.

Result: Mean (±SD) age was 38.17 (±8.64) years. Mean (±SD) time for unilateral inguinal hernias were 55.30 (±11.01) minute in open mesh repair where as 76.07 (±13.71) minute in laparoscopically. For bilateral inguinal hernia, mean (±SD) time for open mesh repair was 92.4 (±10.26) minute and 81.2 (±10.44) minute in laparoscopically Seroma formation was in 4 patients of open mesh repair where as 5 patients of laparoscopic mesh repair. Sixteen patients of laparoscopic mesh repair needed more anaesthetic narcotics 16 patients of laparoscopic mesh repair had return to work within two weeks of surgery whereas only 10 (55.6%) patients of open mesh repair had return to work during same period of time. Pain at surgical site and discomfort was more in open mesh repair.

Conclusion: Laparoscopic mesh repair is better than open mesh repair of inguinal hernia.

KYAMC Journal Vol. 10, No.-2, July 2019, Page 85-89
Studies on Biochemical Changes and Prolactin Level Evaluation in Patients with Chronic Kidney Disease
Authors: Rahman Md Foyzur , Rezwan Md Sawgat , Kabir Md Faisal
Published: September 2019

Background: Chronic kidney disease (CKD) is progressive loss in kidney function over a period of months or years. CKD is an internationally recognized public health problem affecting 5-10% of the world population and day-by-day the number of cases are increasing at an alarming rate. This study was conducted in Khwaja Yunus Ali Medical College Hospital in Enayetpur, Sirajganj.

Objectives: To assess serum creatinine, hemoglobin (Hb), urea, red blood cell (RBC), protein creatinine ratio (PCR) and prolactin in CKD patients.

Material and Methods: This study included 110 patients, 61 were males and 49 were females and their age range 1 to more than 60 years.The control group also consisted of same number of participants as the patients, who were free from signs and symptoms of kidney disease and prolactin hormone disorders.

Results: The study shows that all the biochemical parameters in CKD patients were found to be significantly high compared with control group (P<0.001). Serum prolactin concentrations in CKD patients were also increased significantly compared with control group (P<0.05). It was found that male CKD patients secret more prolactin hormone than male control.

Conclusion: Although males are more prone to chronic kidney disease, but the percentage of females is not negligible. All the biochemical parameters and prolactin level changed significantly in the CKD patients. It is interesting that in case of CKD, male's prolactin secretion becomes higher.

KYAMC Journal Vol. 10, No.-2, July 2019, Page 90-94
Study of Thyroid Function Status in Type 2 Diabetic Patients
Authors: Alo Kamrunnahar , Banik Shyamal Chandra , Ahammed Safayet , Yasmin Ayesha , Rahman Tania
Published: September 2019

Background: Thyroid dysfunction specially hypothyroidism may occur in type 2 diabetic patients.

Objective: To observe thyroid function status in type 2 diabetic patients

Materials and Methods: This cross sectional study was carried out in the Department of Physiology, Sir Salimullah Medical College, Dhaka from July 2016 to June 2017. Total 60 subjects including male and female, age ranged from 40 to 60 years were included in this study, among them 30 were non-diabetic subjects and 30 were type 2 diabetic patients.

Results: In this study, mean serum TSH level was significantly (p<0.001) higher and serum FT4 level was significantly (p<0.01) lower in diabetic patients than that of apparently healthy non-diabetic subjects. Serum FT3 level was lower in type 2 diabetic patients in comparison to that of non-diabetic subjects but the difference was not statistically significant. However, among the diabetic patients 10% were subclinical hypothyroid and 6.67% were hypothyroid

Conclusion: The present study reveals that hypothyroidism occurs in type 2 diabetic patients. So type 2 diabetic patients should measure thyroid hormone levels routinely to detect thyroid dysfunction.

KYAMC Journal Vol. 10, No.-2, July 2019, Page 95-98
Penile Fracture-Report of Two Cases and Review of Current Literature
Authors: Mallik Ashraf Uddin , Rahman Mostafizur , Bagum Fatema , Karmaker Uttam , Ferdous Baikali , Halder Harbilash
Published: September 2019

Penile fracture is an uncommon urological emergency, especially in Bangladesh. The other name is traumatic rupture of the tunica albuginea and corpora cavernosa in the erect penis. It occurs when an erect penis face to buckle under the pressure of a blunt sexual trauma. Patient gives the typical history of immediate detumescence, severe pain, swelling and eggplant deformity of the penile shaft due to penile injury. Immediate surgical exploration and repair of corpora Cavernosa with tunica albugenia is the most effective treatment modality. In normal cases diagnosis is made from history, physical examination alone. In some special cases ultrasonogram, radiological images, including retrograde urethrography or cavernosography are mandatory for proper diagnosis.

KYAMC Journal Vol. 10, No.-2, July 2019, Page 122-125
Mózg z moralnego punktu widzenia. Postulat neurobiologicznej „rekalibracji etyki”
Authors: Chyrowicz Barbara
Published: September 2019

Z propozycją rekalibracji etyki i zastąpienia jej neuroetyką wystąpiła Patricia S. Churchland.  Churchland twierdzi, że im bardziej rozumiemy szczegóły funkcjonowania naszego systemu nerwowego, tym bardziej jesteśmy przekonani co do tego, że przyjmowane przez nas standardy moralnego działania są uwarunkowane neurobiologicznie. Od roku 2002 termin „neuroetyka” funkcjonuje jako nazwa nowej subdyscypliny etyki. Wymienia się w niej dwa zasadnicze działy: etykę neuronauki i neuronaukę etyki. Pierwszy dotyczy zasadniczo moralnych problemów związanych z zastosowaniem osiągnięć neuronauk, przedmiotem drugiego: neuronauki etyki, jest wpływ, jaki wiedza z zakresu neuronauk ma na nasze rozumienie etyki. Artykuł jest krytyczną prezentacją nowej subdyscypliny etycznej i próbą pokazania, że jakkolwiek neurobiologiczne procesy mają wpływ na nasze działanie, to nie decydują o jego moralnym wymiarze.
Financial Inclusion in Turkey: Evidence from Individual Level Data
Authors: ÖZŞUCA Ekin Ayşe
Published: September 2019

Using individual level data from the World Bank Global Findex for 2017, this study analyzes the level of financial inclusion and explores its main determinants in Turkey. In particular, it explores how individual characteristics (i.e. gender, age, income, education) are associated with the usage of formal financial services and impinge on the perceived barriers to account ownership among financially excluded individuals in Turkey. The results of the study indicate that being man, older, richer and more educated increases the likelihood of having a formal account and formal saving. Moreover, mobile banking is found to be driven by identical individual characteristics with that of other traditional formal financial services usage. As regards with the main obstacles for not having a formal account, each one of the individual attributes seems to be significant in explaining different voluntary and involuntary self-reported barriers behind financial exclusion. The findings are of remarkable importance for designing policies to promote financial inclusion in Turkey
On the Directivity of Acoustic Waves Generated by the Angle Beam Wedge Actuator in Thin-Walled Structures
Authors: Shevtsov Sergey , Chebanenko Valery , Shevtsova Maria , Kirillova Evgenia , Rozhkov Evgeny
Published: September 2019

The paper aims to develop improved acoustic-based structural health monitoring (SHM) and nondestructive evaluation (NDE) techniques, which provide the waves directivity emitted by the angle beam wedge actuators in thin-walled structures made of plastic materials and polymeric composites. Our investigation includes the dispersive analysis of the waves that can be excited in the studied plastic panel. Its results allowed to find two kinds of generated acoustic waves—anti-symmetric Lamb waves (A0) and shear horizontally polarized SH waves (SS0). The bounds of the chosen frequency range for the experimental and numerical studies were accepted as a compromise between the desire to obtain a high defect resolution by generating short waves, their adjustable directivity, and maximum propagation length. The finite element model for the transducer was built by using the results of an actuator structure experimental study. The frequency response functions for the actuator current and oscillation amplitude of the footprint surface demonstrated good agreement. The found eigenfrequencies of the actuator’s structure were used for the numerical and experimental study of the Lamb and SH wave generation and propagation in a thin-walled plastic panel. Our results convincingly demonstrated the satisfactory directivity of the actuated waves at their excitation on the frequencies that corresponded to the natural modes of the actuator oscillation. The authors assume that an efficient use of the proposed technique for other analyzed quasi-isotropic materials and applied actuators can be provided by preliminary research using a similar approach and methods presented in this article.
Influence of Seed Origin on Morphological Characteristics and Phytochemicals Levels in Brassica oleracea var. acephala
Authors: Šamec Dunja , Kruk Valentina , Ivanišević Petra
Published: September 2019

Brassica oleracea var. acephala production and seed selection in the Mediterranean region is traditionally limited to private, family needs or small enterprises. In recent years it became popular, especially in the US, and known as a superfood due to the presence of specialized metabolites associated with health benefits, mainly from polyphenols, glucosinolates, and carotenoids groups. With the increasing popularity of this plant, there is a growing interest in its commercial production. Therefore, in the present work we aimed to study how seed origin influences the content of specialized metabolites in B. oleracea var. acephala. We grew plants from six different seed producers, in a hydroponic system under controlled conditions, and determined seed germination percentage, morphological characteristics, pigments, polyphenols, glucosinolates, and carotenoids content, as well as antioxidant activity. Seed origin influenced germination percentage, yield, and slightly morphological characteristic, but did not influence pigments, total polyphenols, phenolic acids, glucosinolates, and carotenoids content. However, content of flavonoids, ferulic, sinapinic, and, consequently, antioxidant activity was slightly different.
The Alpha Hypothesis: Did Lateralized Cattle–Human Interactions Change the Script for Western Culture?
Authors: Robins Andrew
Published: September 2019

Domestic cattle possess lateralized cognitive processing of human handlers. This has been recently demonstrated in the preference for large groups of cattle to view a human closely within the predominantly left visual field. By contrast, the same stimulus viewed predominantly within the right visual field promotes a significantly greater frequency of dispersal from a standing position, including flight responses. The respective sets of behaviours correspond with the traditional terms of “near side” for the left side of cattle and horses, and the “off” or “far side” for the right side. These traditional terms of over 300 years usage in the literature communicate functional practicalities for handling livestock and the recognition of lateralized cognitive processing. In this review, the possibility of even earlier recognition and the significance of laterality in cattle-human interaction was argued, from the earliest representations of the letter "A", originally illustrated from nearly 4000 years before the present time as the head of an ox as viewed not from the front or from the right, but from the left (near) side. By extension, this knowledge of lateralization in cattle may represent the earliest written example of applied ethology—the study of the behaviour of animals under human management.
Supplementation of Saponins from Leaves of Panax quinquefolius Mitigates Cisplatin-Evoked Cardiotoxicity via Inhibiting Oxidative Stress-Associated Inflammation and Apoptosis in Mice
Authors: Xing Jing-Jing , Hou Jin-Gang , Liu Ying , Zhang Ruo-Bing , Jiang Shuang , Ren Shen , Wang Ying-Ping , Shen Qiong , Li Wei , Li Xin-Dian , Wang Zi
Published: September 2019

Background: Although kidney injury caused by cisplatin has attracted much attention, cisplatin-induced cardiotoxicity is elusive. Our previous studies have confirmed that saponins (ginsenosides) from Panax quinquefolius can effectively reduce acute renal injuries. Our current study aimed to identify the potential effects of saponins from leaves of P. quinquefolius (PQS) on cisplatin-evoked cardiotoxicity. Methods: Mice were intragastrically with PQS at the doses of 125 and 250 mg/kg daily for 15 days. The mice in cisplatin group and PQS + cisplatin groups received four times intraperitoneal injections of cisplatin (3 mg/kg) two days at a time from the 7th day, respectively. All mice were killed at 48 h following final cisplatin injection. Body weights, blood and organic samples were collected immediately. Results: Our results showed that cisplatin-challenged mice experienced a remarkable cardiac damage with obvious histopathological changes and elevation of lactate dehydrogenase (LDH), creatine kinase (CK), creatine kinase isoenzyme MB (CK-MB) and cardiac troponin T (cTnT) concentrations and viabilities in serum. Cisplatin also impaired antioxidative defense system in heart tissues manifested by a remarkable reduction in reduced glutathione (GSH) content and superoxide dismutase (SOD) activity, demonstrating the overproduction of reactive oxygen species (ROS) and oxidative stress. Interestingly, PQS (125 and 250 mg/kg) can attenuate cisplatin-evoked changes in the above-mentioned parameters. Additionally, PQS administration significantly alleviated the oxidation resulted from inflammatory responses and apoptosis in cardiac tissues via inhibition of overexpressions of TNF-α, IL-1β, Bax, and Bad as well as the caspase family members like caspase-3, and 8, respectively. Conclusion: Findings from our present research clearly indicated that PQS exerted significant effects on cisplatin-induced cardiotoxicity in part by inhibition of the NF-κB activity and regulation of PI3K/Akt/apoptosis mediated signaling pathways.