bluuebunny/crossref_metadata_2025 huggingface dataset:
Analysis of a chosen combustion parameters of dual fuel SI engine fuelled with alcohol and gasoline
Authors: STELMASIAK Zdzisław
Published: July 2021

The paper presents comparison of a selected combustion parameters of dual fuel, spark ignited engine run on gasoline
and methyl alcohol. To the testing was used a four cylinder Fiat 1100 MPI engine with multipoint injection of gasoline
and alcohol to area of inlet valve. Preliminary tests of the engine pointed at significant differences of its performance
when the engine was run on alcohol only and on gasoline only [1]. In connection with it an indicator tests were performed
in order to determine, on their base, a differences present in runs of combustions of the both fuels. The paper presents
comparison of maximal pressure, rate of pressure rise, average temperature of working medium, heat release rate, total
angle of combustion and indicated efficiency. These parameters were analyzed both in function of crankshaft rotation
angle as well as engine load. Obtained results show at different course of methanol combustion comparing to gasoline.
Run of methanol combustion is more rapid, what leads to growth of engine efficiency and increase of maximal cylinder
pressures. Growth of working medium temperatures during combustion, what can lead to growth of thermal load of the
engine, can be included to disadvantageous phenomena. Performed tests point at necessity of engine tuning modification
during feeding with methanol, what would enable to take full benefits of advantageous properties of that fuel. Simultaneously,
optimization tests have enabled to restrict disadvantageous effects of combustion of methanol.
Marine engine seating on polymer-metal chocking
Authors: PIASECZNY Leszek
Published: July 2021

Traditional systems of marine engine seating on metal and polymer chocks have been discussed and a new way of engine seating on polymer-metal chocks, of author’s own design has been presented as to such background. The author’s own designed chocks have been patent protected since 24.07.2000, patent number 192120 issued to Bohaterów Westerplatte Naval Academy in Gdynia. The chocks were designed to set the engines and other aggregates on the foundation. They ensure an appropriate alignment of the engine against the crankshaft power takeoff systems. The results of the tests carried out on the chocks have been presented proving that they meet the strength parameters required by the manufacturers of marine engines and comply with the regulations of the classification societies.
The effect of multi-phase injection on selected parameters of the common rail fuel system
Authors: BALAWENDER Krzysztof , KUSZEWSKI Hubert , LEJDA Kazimierz , USTRZYCKI Adam
Published: July 2021

The common rail fuel supply systems due to their flexibility of injection characteristics are the most frequently applied fuel supply solution in Diesel engines. The most essential parameters, which have the effect on the phenomena taking place in a Common Rail system are the duration of the injection, rail pressure and fuel temperature. There may also be other factors effecting the course of the injection. The split of the fuel dose into a few parts can cause a pressure fluctuation in the rail and also in the whole system, effecting the course of the injection. In the article tests results related with the influence of multiple injection on the total fuel dose and real onset of the injection have been presented. The tests were carried out on a test stand fitted with Bosch EPS-815 (electronic fuel dose measurement). For the testing of the real injection onset the visualization system AVL Visioscope was used. The control of the injector was realized through a controller which enabled to split the fuel dose into three parts.
Determination of performance and parameters for turboprop and turboshaft engine for modification through change of gas temperature before turbine
Authors: ANTAS Stanisław
Published: July 2021

The article presents the analysis of a commonly used performance modification method for turboprop and turboshaft
engines with a free power turbine. The description of analytical and numerical methods of evaluation for a change of
parameters and geometry of turbine assemblies are presented. There are also given the basic methods of changing throat
area of turbine nozzle guide vanes and its influence on engine performance. The calculation methods are verified by
experimental tests run by WSK “PZL-Rzeszów” S.A.
SI engine fuelled by injection of pure propane or pure butane into the intake manifold
Authors: DUTCZAK Jerzy
Published: July 2021

The results of the simulation and the test stand investigations of the 170.A1 engine fed by the injection of a liquid phase
of propane-butane or pure propane and pure butane have been reported in the article. A modified serial single point
gasoline injection system and an engine controller of own design engine have been used and discussed. The Comparison
of selected engine parameters for given cases of fuelling confirmed the possibility of the use of the evaporating heat of
fuel to improve the cylinder filling. The effective parameters of an engine fuelled with pure propane or pure butane were
more beneficial than for gasoline fuelling.
Experiences about retrofitting of City Busses with DPF’s
Authors: CZERWINSKI Jan , ZIMMERLI Yan , MAYER Andreas
Published: July 2021

In the paper the activities on reduction of Particle Mater emission of city busses in public transportation in City of Biel
(Switzerland) were discussed. Following objectives were pursued in the 4 years project: clearing up of the usefulness of
water-emulsion fuel, of exhaust gas emissions of busses before and after DPF retrofit, of efficiency of filter additivesupported
regeneration, testing of coated CRT and preliminary tests with different lube oils.
As most important statements it can be pointed out that: water-fuel emulsion combined with CRT reduces significantly
all emission components and supports the DPF regeneration but the influences of oil quality on the particle emissions
need further investigations. It was also find out, that CRT doesn’t work satisfactorily in the Euro 1 busses, while in Euro
2 and Euro 3 busses its cleaning periods were longer than 150 000 km.
Particulate and smoke measurement on Euro 4 engines
Authors: SINGER Wolfgang , SCHINDLER Wolfgang , LINKE Manfred
Published: July 2021

Future legislation like EURO IV regulation will require massive reduction of particulate emission limits. Besides
continuous improvement of the engine combustion process also exhaust aftertreatment systems, like Diesel Particulate
Filters (DPF), or Selective Catalytic Reduction (SCR) of Nitrogen Oxides, are under investigation to meet that goal.
For the development of the complete powertrain system, which means the engine and the aftertreatment device, with
reduced particulate emissions, there is not only demand for high sensitive Smoke and Particulate Measurement, but also
for exhaust gas conditioning to enable gas and particulate measurement at the high pressures and temperatures in the
exhaust duct when sampling in front of e.g. a particulate trap.
Sampling in front of the aftertreatment system as well as behind that device is required when evaluating the catalytic
or filter efficiency.
Emission test equipment is typically equipped with automatically cleaning functions in order to ensure long time
stability of the measuring signal and long service intervals. This is usually performed by purging modes with clean air.
On the other hand oxygen within the purge air is influencing the catalytic behaviour of the aftertreatment system which
needs to be absolutely avoided.
A century of high performance engine testing
Authors: ATKINS Richard D.
Published: July 2021

The past century has seen significant developments in the high performance internal combustion engine.
These changes were driven in the first 50 years by accelerated technology due to two World Wars. A study of the engines in the period 1914–1918 and 1939 to 1944 is interesting in so much as many of the current designs of modern engines were in place. The materials and most importantly the computing power were simply not available. In 1960, a four cylinders normally aspirated race engine produced less than 100 BHP (74 kW) per liter capacity; today this is the norm for standard production car engines. A major thrust in the development of high performance engines came with the introduction of Formula 1 racing, as we understand it today in the early 1960’s when the engine capacity was reduced to 1.5 liters and the engines were normally aspirated. This lead to the onset of high revving engines than ran through to 12,000 rev/min, but still retained a flat BMEP (brake mean effective pressure) curve in excess of 1.4 MPa peak and at least 1.1 MPa from 4,500 rev/min through to 12,000 rev/min. In the course of some 45 years power per liter has risen from 100 BHP to 300 BHP (74–220 kW) and dynamometers and specialist instrument design has kept pace with this rise in efficiency.
The paper will follow these trends and discuss in some detail the instrumentation that was available to early engineers and follow progress through today, culminating in low inertia dynamometers that are capable of continuous running at 30,000 rev/min and absorbing 2,500 BHP (1,800 kW).
On the modeling of droplet transport, dispersion and evaporation in turbulent flows
Authors: BARATA Jorge
Published: July 2021

The present paper presents a numerical study on evaporating droplets injected through a turbulent cross-stream. Several models have been used with more or less success to describe similar phenomena, but much of the reported work deals only with sprays in stagnant surroundings. The ultimate goal of this study is to develop an Eulerian/Lagragian approach to account for turbulent transport, dispersion, evaporation and coupling between both processes in practical
spray injection systems, which usually include air flows in the combustion chamber like swirl, tumble and squish in I.C. engines or crossflow in gas turbines. In this work a method developed to study isothermal turbulent dispersion is extended to the case of an array of evaporating droplets through a crossflow, and the performance of two different evaporation models widely used is investigated.
The convection terms were evaluated using the hybrid or the higher order QUICK scheme. The dispersed phase was treated using a Lagrangian reference frame. The differences between the two evaporation models and its applicability to the present flow are analysed in detail.
During the preheating period of the Chen and Pereira [1] model the droplets are transported far away from the injector by the crossflow, while with the Sommerfeld [2] formulation for evaporation the droplet has a continuous variation of the diameter. This result has profound implications on the results because the subsequent heat transfer and turbulent dispersion is extremely affected by the size of the particles (or droplets). As a consequence, droplet diameter, temperature and mass fraction distributions were found to be strongly dependent on the evaporation model used. So, a
new formulation that takes into account also the transport of the evaporating droplets needs to be developed if practical injection systems are to be simulated. Also, in order to better evaluate and to improve the vaporization models more
detailed measurements of three-dimensional configurations are required.
Measurement of burning velocity on DME fuel-air mixtures using microgravity technique
Authors: OKAJIMA Satoshi
Published: July 2021

Experiment has been carried out to examine the fundamental combustion characteristics of DME fuel-air mixtures using micro-gravity technique, which is achieved in freely falling chamber. The initial conditions of temperature and pressure are 293 K and 0.10 MPa, respectively and the equivalence ratio is the range from stoichiometoric proportion to near the lower flammability limit. The results obtained in the study are as follows:(1) micro-gravity technique is very useful to analyze the flame behavior even at very lean mixtures, and (2) the burning velocity of DME fuel- air mixture is nearly the same with that of methane-air mixture at the range of all the equivalence ratios investigated and those values of DME fuel are 10.0 cm/s and 32.0 cm/s at 0.62 and 0.90 of equivalence ratio, respectively, and (3) from these experimental data it is suggested that the application to the engine combustion of DME fuel is not so impossible.
A model of the IC engine in the form of the bond graph (BG)
Authors: CICHY Marian , KROPIWNICKI Jacek , MAKOWSKI Sławomir
Published: July 2021

Grounds for the use of the bond graph method in the modeling of internal combustion (IC) engines, which are energy sources in systems consisting of different physical nature elements have been presented. The model of hybrid vehicle, as an example of such system, has been presented. Examples of definitions of the main engine parameters, which follow the established BG convention have been given. A proposal of formalization of the IC engine characteristics, which follows the selected method of modeling, has been presented as well as an analytic form of the characteristic as the multidimensional vector function. Example of the engine characteristic approximation with the use of the “Spline” functions and author’s computer programs has been given.
ANALYTICAL STUDY OF ORGANIC EATERIES
Authors: Ali Shaikh , M J Nidhi
Published: July 2021

Humans have manipulated nature in every possible way for the sake of benefits. Their activities have resulted in ozone layer depletion, deforestation, drying of seasonal rivers, lands getting barren, ground water levels going down etc. Besides, the environmental point of view, in the search of earning profits, new threats have emerged for humanity in the form of adulteration in essential commodities like milk, vegetables, fruits, spices, pulses etc. There has been a paradigm shift in the methods of infrastructure creation and operation, because people have understood the importance of shifting towards more eco-friendly ways doing things. The use of fertilizers and pesticides increased the vulnerability of humanity towards threatening diseases. The vegetables and fruits now take less time to grow and the taste is not the same as it used to be earlier. It becomes imperative to go in organic way and create awareness for the same in the rural areas.
Der gymnasiale Privatschulmarkt Deutschlands. Exploration der Charakteristika von Privatschulen mit gymnasialer Oberstufe sowie deren Wechselwirkungen mit sozialen und regionalen Ungleichheiten in Ost- und Westdeutschland
Authors:   , Akkaya Pia
Published: July 2021

Diese explorative Studie widmet sich der Entwicklung und Verfassung des gymnasialen Privatschulmarktes in Ost- und Westdeutschland sowie dessen Wechselwirkungen mit regionalen sozialen Ungleichheiten und Merkmalen der Bildungssysteme. Basierend auf Datenerhebungen zu 814 Privatschulen mit gymnasialer Oberstufe werden sowohl deskriptive Überblicke nach Privatschulträgerschaften (katholisch, evangelisch, reformpädagogisch, international/bilingual und sonstige) gegeben als auch multiple Korrespondenzanalysen unter Berücksichtigung regionaler sozialer Ungleichheiten berechnet.
Prototype Development of Myoelectrics Signal-Based Exoskeleton
Authors: Shabrine Anggrian Riska Amelia , Pujiyanto Pujiyanto , Rahmatillah Akif
Published: July 2021

Diffable is incompleteness or abnormality accompanied by consequences for specific functions. The method used is tapping on the hamstring and hamstring muscles quadriceps to determine the resulting voltage—muscle signal tapping using Electromyograph (EMG) and Ag-AgCl electrodes. Average current-voltage contraction and relaxation are used as threshold values to drive the servo motor. This study indicates the tension when the muscle contracts are in the range of 4 volts while the relaxation time is 0.4 volts. Then it can be concluded that the voltage when the muscle is contracted is more significant than when it is relaxed. Using different tension during contraction and relaxation in normal subjects showed that the different tension could drive the prototype exoskeleton.
The Effective Dose Analysis of Head CT-Scan on Adult Patients
Authors: Rahmadani Febriana Dwi , Wibowo R Arif , Ain Khusnul
Published: July 2021

This study was aimed to determine the difference of the effective dose from the clinical and theoretical on the head CT-Scan examination of adult patients and compare the data with the permitted dose limit from BAPETEN. The data collected at Haji Hospital Surabaya using MSCT Siemens Somatom Definition AS 64 Slice on five adult patients, aged between 28-67 years old. The step before the scanning process were adjusting the voltage (kV) and current values (mA) on the CT-Scan. The scanning duration for each patient was 4s and resulted in head images with CTDIvol and DLP values displayed on the monitor screen. The effective dose limit value for the head CT scan was 2.8 mSv, according to BAPETEN. The study results showed that the effective dose on head CT Scan examination was below the safe dose limit value, while the different fractions between the clinical and theoretical of Patient A, B, C, D, and E was 4.11%; 5.46%; 6.19%; 6.52%; and 5.42%, respectively.
MRI Cervical Image Analysis with Fat Suppression Techniques Between Sequent Turbo Invers Recovery Magnitude (TIRM) and Fat Saturations (Fat Sat) on Degenerative Disc Disease at Haji Hospital Surabaya
Authors: Nata Vita Arinda Ayu Putri , Astuti Suryani Dyah , Wibowo R. Arif
Published: July 2021

This study aimed to analyze the difference of image information and determine the better image quality between the Turbo Invers Recovery Magnitude (TIRM) and Fat Saturation (Fat Sat) techniques on cervical MRI examination at Haji Hospital Surabaya. The samples of this study were one female and three male patients. The obtained data were ROI of the vertebral body tissue, intervertebral discs, spinal cord, and then calculated as SNR and CNR values. SNR and CNR values were statistically tested using Paired T-Test on SPSS 2.5. The Paired T-Test results showed a significant difference between the TIRM and Fat Sat techniques, p>0.05. SNR and CNR average values also proved that the Fat Sat technique had more optimal image quality than the TIRM technique.
Image Classification Using Deep Learning Architecture – EfficientNET for COVID-19 Medicine Consumption
Authors: Jones Erick , Shaik Mohammed Suraj , Azeem Gohar
Published: July 2021

The Coronavirus disease 2019 (COVID-19) pandemic has impacted the world like no other pandemic in history. COVID-19 has progressed rapidly affecting health care in the global community. In this paper, we study the Image classification approach for confirming the consumption of medicine by people. The motivation for this research is to reduce contact with the people, without having them in physical observation and help minimize the spread of COVID-19. We used EfficientNet, a Deep Learning Convolution Neural Network (CNN) [7] architecture for systematical use of model scaling and balancing network depth, width, and resolution for better performance of our model. In this paper, we used the data augmentation technique to avoid overfitting. We used image hashing to compare and remove relatively similar images as data cleaning step and demonstrate the effectiveness of this approach by observing the classification accuracy. We used cloud computation to train the model. This trained model will be helpful to achieve the goal. In this study, we developed a model that could successfully detect the image and confirm the pill consumption by patient with high accuracy rate. This study will help medical professionals, especially during COVID-19 pandemic, in remotely monitoring the patient’s dosage and determine appropriate action in case of non-compliance.
A social learning theory model for understanding team-based professional communication learning for computer science students
Authors: Kalil C. A. , Grant T.
Published: July 2021

The study interrogates an annual course with undergraduate computer science students that takes place against the background of national student protests at universities across South Africa to effect equitable access to universities. It uses reflections by computer science students of their experience of collaborative work on a Scenario Pedagogy (SP) course, as well as the results of a survey of student collaborative practices in a digital space as a window into their learning trajectories. The study demonstrates and offers an understanding of how SP can contribute to developing computer science students as communicators in their discipline at university and future workplaces. It explores the usefulness of Communities of Practice (COP) and Knowledgeability across Landscapes of Practice (KLP) theory as an analytical tool-set as well as a descriptive language for investigating and explaining learning events. The changing and changed landscape of higher education and the world of work present new challenges and opportunities, particularly in curriculum development and delivery. Utilising â€œauthenticâ€ pedagogies and social learning theory provides appropriate tools for meeting these challenges. Exploring reflective practices and their contribution to the emerging of transformed practices and identities in the South African higher education sector would be a fruitful avenue of future research.
Evaluation of quality assurance instruments in higher education institutions: A case of Oman
Authors: Al-Amri A. S. , Zubairi Y. Z. , Jani R. , Naqvi S.
Published: July 2021

The use of a variety of instruments for quality assurance, management, and enhancement in higher education is well recognized. This article investigated the instruClose Panelments used by Higher Education Institutions (HEIs) in Oman to measure, control, and manage the quality of their services in alignment with the standards set by Oman Academic Accreditation Authority (OAAA). Quality Assurance Managers (QAMs) from five HEIs were interviewed to identify the instruments used by them to fulfil the requirements of each standard and the way they make use of the data gathered by using these instruments. Findings from the study reveal that questionnaires and meetings are the most common instruments used by these institutions to measure, control and assure the efficacy of their current quality activities. In addition, HEIs use summary statistics to analyse data and then present them in meetings or through reports. On the other hand, it was found that substantial efforts are made to collect data but the efficient usage of data is missing. The QAMs reported a lack of awareness among the staff on the importance of collecting data since the staff members believe that these data are collected for documentation purposes only. This study emphasizes the importance of using the data gathered from different instruments in decision making and enhancing the quality of HEIs.
DAMPAK KUALITAS PELAYANAN TERHADAP KEPUASAN PASIEN BPJS DI PUSKESMAS JATILAWANG KABUPATEN BANYUMAS
Authors: Kusumaningtyas Kusumaningtyas
Published: July 2021

Satisfaction is a feeling that shows a person's happiness or disappointment that comes after comparing the performance (outcome) of the thinking product to the expected performance (or outcome). Quality of service and satisfaction (patient) is a unity that is difficult to separate. To realize the patients’ satisfaction of BPJS at The Primary Health Service (Puskesmas) of Jatilawang Banyumas Regency as public health service owned by the government, in its development is demanded to give good service quality by increasing employee competence and also pay attention to service quality dimension itself. That are reliability, responsiveness, assurance, tangibles, and empathy. This research is a descriptive quantitative research with the cross-sectional approach which aims to know in general about how the level of patient satisfaction. Meanwhile, the specific purpose of this study to determine how much impact the quality of health services to BPJS patient satisfaction. The results showed that in general from the results of the t-test, the variable reliability (X1), responsiveness (X2), assurance (X3), tangibles (X4) and empathy (X5) partially positive and have a significant effect on patients’ satisfaction of BPJS service (Y). Furthermore, the variable reliability (X1), responsiveness (X2), assurance (X3), tangibles (X4) and empathy (X5) simultaneously have a positive and significant effect on BPJS patient satisfaction (Y). Specifically, the amount of BPJS patient satisfaction at The Community Health Center of Jatilawang, Banyumas is equal to 0.992 or 99.2%.
IMPLEMENTASI KEBIJAKAN UPAH MINIMUM KABUPATEN (UMK) DI KABUPATEN KEBUMEN
Authors: Widajati Endah Wahjoe , Rosyadi Slamet , Wahyuningrat Wahyuningrat
Published: July 2021

Penelitian ini tentang permasalahan implementasi UMK di Kabupaten Kebumen yang sangat komplek apabila dilihat dari formulasi kebijakan, proses kebijakan dan dampak kebijakan memunculkan beberapa masalah yang menyebabkan implementasi UMK sulit dilaksanakan. Dalam tulisan ini akan mengkaji implementasi Upah Minimum Kabupaten yang dipengaruhi perilaku hubungan antar organisasi pelaksana yaitu komitmen dan koordinasi dalam organisasi SPSI/PUK, perilaku implementor yaitu peran kontrol dan profesional dari pemerintah serta pengusaha dan perilaku kelompok sasaran Respon terhadap norma dan peraturan perburuhan, dan kepuasan kerja dari buruh. Penelitian ini menggunakan desain survei dengan pendekatan kuantitatif. Teknik pengumpulan data diperoleh dengan kuesioner, wawancaradan dokumentasi. Dalam penelitian ini teknik sampling digunakan adalah Proposional Cluster Random Sampling. Berdasarkan hasil penelitian dapat disimpulkan sebagai berikut : pertama, terdapat pengaruh positif dan signifikant perilaku hubungan antara organisasi pelaksana terhadap Implementasi Upah Minimum Kabupaten dengan koefisien korelasi sebesar 0,690; kedua, terdapat pengaruh positif dan signifikan perilaku implementor terhadap implementasi Upah Minimum Kabupaten dengan koefisien korelasi sebesar 0,864; ketiga, terdapat pengaruh positif dan signifikan pengaruh antara variabel perilaku kelompok sasaran terhadap implementasi Upah Minimum Kabupaten dengankoefisien korelasi sebesar 0,846; keempat, terdapat pengaruh positif dan signifikan perilaku kelompok sasaran dengan implementasi upah minimum kabupaten dengan kofisien korelasi sebesar 0,846; kelima, pengaruh bersama-sama perilaku hubungan antar organisasi pelaksana PUK/SPSI sebagai organisasi pekerja agar meningkatkan komitmen dan koordinasinya bersama variabel perilaku implementor dan perilaku kelompok sasaran terhadap Implementasi Upah Minimum kabupaten dengan koefisien korelasi sebesar 16.131.
PROSES COLLABORATIVE GOVERNANCE DALAM PEMBANGUNAN KAWASAN PERDESAAN DI KECAMATAN SOMAGEDE KABUPATEN BANYUMAS
Authors: Piani Iin
Published: July 2021

Collaborative governance dapat menjadi solusi untuk berbagai permasalahan publik tetapi dalam prakteknya tidak mudah untuk diterapkan salah satunya pelaksanaan collaborative governance kawasan perdesaan di Kabupaten Banyumas. Penelitian ini bertujuan untuk mengetahui proses collaborative governance dalam pembangunan kawasan perdesaan di Kabupaten Banyumas melalui proses kolaborasi pihak yang terlibat koordinasi pembangunan kawasan perdesaan yang dilakukan oleh beberapa pihak yaitu pemerintah, masyarakat, dan pihak ketiga. Penelitian menggunakan metode kualitatif dengan model pendekatan studi kasus. Hasil penelitian menunjukan dialog tatap muka melibatkan tiga pihak yaitu tim koordinasi pembangunan kawasan perdesaan, masyarakat dan pihak ketiga dari akademisi yaitu Universitas Jenderal Soedirman. Membangun kepercayaan ditunjukan dengan saling mendukung dengan cara ikut serta dalam proses koordinasi baik dalam bentuk pertemuan atau rapat yang diselenggarakan. Komitmen terhadap proses terwujud pada ketergantungan di antara pihak yang terlibat dan saling bekerjasama untuk mencapai tujuan. Sikap saling memahami pihak yang terlibat di dalam pembangunan kawasan perdesaan mewujudkan ketiga desa Tanggeran, Klinting, dan Kemawi menjadi desa yang maju dan juga mandiri dengan memanfaatkan potensi. Hasil sementara dalam pembangunan kawasan perdesaan Kabupaten Banyumas terwujud pada capaian-capaian proses kolaborasi yang menghasilkan rencana strategis yang terdiri dari kegiatan dan upaya yang akan dilakukan pada tahap pelaksanaan kegiatan pembangunan kawasan perdesaan.
Manajemen Kolaboratif Dalam Penanggulangan Bencana Daerah Di Kabupaten Banjarnegara
Authors: Widyaningsih Herlina Wahyu Tri
Published: July 2021

Disaster measurement in Indonesia include in Banjarnegara District by collaborative management, which expected could solvable. The implementation of collaborative management of manajement disater in Banjarnegara District had human resources, budget, and equipment limitation. This situation been interesting researchers to exam the collaborative management of disaster management in Banjarnegara District.

This research aims to analyze how collaborative management in disaster management at Banjarnegara District at response, recovery and developing phase, and to analyze the supporting and inhibiting factors to collaborative management of disaster management in Banjarnegara District and the strategies to solving the problem. This research was qualitative research with descriptive approach. Researh methode was case study. The informants select by purposive sampling techniques with consideration that informant realy understand about collaborative management of disaster management in Banjarnegara District, so could gave many information about research problems. The prime informants were the Head of BPBD, the Head of BPBD Operational Section, the Health Service, Secretary of government Banjarnegara District, Commission D of Regional Representative Council in Banjarnegara, and Head of Social Service. Supporting informant is the head of community organization. Data collection by interviews, observation and documentation. Research data were analyzed by interactive model.

The results of this research been concluted: 1) Collaborative management of disaster management in Banjarnegara District over all not satisfaction comunity and not effective and efficient yet. At response phase could been doing quite well, at recovery phase could been doing well, and at developing phase could been doing well too but not finished at all yet caused by comunity land acquisition problem. BPBD could collaborate with some elements of government institution and non-governmental institutions in order to achieve a common goal which is to minimize the number of victims and the risk of disaster impacts, 2) Supporting factors were communication, commitment and mutual understanding among the stakeholders which be realized in collaboration and awareness all elements about their duties and responsibility so the limitation factors like human resources, equipment and budget can be solving by those collaboration. So that could say if collaborative management of disaster management in Banjarnegara District was solvable for disaster management in Banjarnegara District which has susceptible and disaster potenstions from several aspects, that was geographical, climatological, geological, and demographic social.
Strategi Pemanfaatan Media Online Untuk Pembelajaran Pendidikan Agama Islam Di Era Pandemi Covid-19 Antara Idealita Dan Realita
Authors:   Fakultas Ilmu Agama Islam, Universitas Islam Indonesia, Imawan Dzulkifli Hadi , Safitri Edi ,   Fakultas Ilmu Agama Islam, Universitas Islam Indonesia, Djunaidi A F ,   Fakultas Ilmu Agama Islam, Universitas Islam Indonesia, Asyrof Muhammad Najib ,   Fakultas Ilmu Agama Islam, Universitas Islam Indonesia
Published: July 2021

Pendidikan Agama Islam merupakan salah satu materi wajib bagi mahasiswa Universitas Islam Indonesia. Pendidikan Agama Islam berisi penjelasan tentang akidah, Syariah, dan akhlak serta keteladanan diajarkan untuk membina mahasiswa menjadi muslim yang baik. Tetapi pandemi Covid-19 memaksa pembelajaran Pendidikan Agama Islam dilakukan dengan jarak jauh dengan media online (daring). Karena itu, penelitian ini dilakukan untuk menelisik bagaimana pendidikan Agama Islam dengan daring (online) dapat dilaksanakan dengan baik. Penelitian ini menggunakan metode pendekatan kualitatif deskriptif dan Research and development in education (R&D). Penelitian ini menemukan bahwa agar dapat dipahami oleh mahasiswa dengan baik upaya pembinaan iman dan adab dalam Pendidikan Agama Islam dilakukan dengan menyiapkan materi dalam bentuk softfile dan video, memanfaatkan media-media online seperti google classroom, youtube, whatsapp, zoom untuk pembelajaran dan melakukan instrument penilaian sebagai evaluasi.
Effect of Aluminum Nitride Buffer Layer Deposited by Molecular Beam Epitaxy on the Growth of Aluminum Nitride Thin Films Deposited by DC Magnetron Sputtering Technique
Authors: Riah B. , Camus Julien , Ayad Abdelhak , Rammal Mohammad , Zernadji Raouia , Rouag Nadjet , Djouadi M.A.
Published: July 2021

This paper reports the effect of silicon substrate orientation and aluminum nitride buffer layer deposited by molecular beam epitaxy on the growth of aluminum nitride thin films deposited by DC magnetron sputtering technique at low temperature. The structural analysis has revealed a strong (0001) fiber texture for both substrates Si (100) and (111) and a hetero-epitaxial growth on few nanometers AlN buffer layer grown by MBE on Si (111) substrate. SEM images and XRD characterization have shown an enhancement in AlN crystallinity thanks to AlN (MBE) buffer layer. Raman spectroscopy indicated that the AlN film was relaxed when it deposited on Si (111), in compression on Si (100) and under tension on AlN buffer layer grown by MBE/Si (111) substrates, respectively. The interface between Si (111) and AlN grown by MBE is abrupt and well defined; contrary to the interface between AlN deposited using PVD and AlN grown by MBE. Nevertheless, AlN hetero-epitaxial growth was obtained at low temperature (<250°C).
Ethnobotanical Survey among the Nubian and South Eastern Tribes of Egypt
Authors: Soliman Ashraf Tawfiek , Hamada Fatma A.
Published: July 2021

This survey was conducted on 4 tribes (Ababda, Bisharia, Nubian and Rashayda) live in the south of the Nile and the Eastern Desert of Egypt with the aim to document and compare the traditional herbal medicines and assess the relationships among these tribes. A total of 180 interviews were conducted with the Bedouins and herb healers. Thirty-nine species belonged to 36 genera and 27 families were employed. Fabaceae and Poaceae and Rutaceae were the species-rich families. The used wild species comprised 43.6%, cultivated species (38.5%) and the imported from herbalist shops (17.9%). The leaves were the most used parts (31%), followed by stems and fruits with about 22% each. Distinct species included Acacia nilotica is used in the treatment of dental pain with use value 33.3%, Cymbopogon schoenanthus subsp. proximus in treatment of both cough or headache with use values 35 and 30.6% and a combination of Acacia nilotica with Lawsonia inermis in the treatment of sore throat with use value 22.2%. The highest similarity was recorded between Nubian and Rashayda tribes (55.3%), Ababda and Bisharia (46.8%). Diarrhea and headache were the most popular diseases with 7 different treatments, cough and dental pains with 6 treatments.
Seroprevalence of Porcine Cysticercosis in South-Eastern Côte d'Ivoire
Authors: Koffi Kouassi Eugene , Soumahoro Man-Koumba , N’Dri Kouadio Borel , Nowakowski Mireille , Marius Cataud , Boka O Marcel , MELKI JIHEN , Touré Andre offianan , Djaman Joseph , BELLALOU Jacques , NGoran Eliézer , JAMBOU Ronan
Published: July 2021

Abstract : Background : porcine cysticercosis is an endemic parasitic zoonosis in many developing countries. The objective was to estimate the seroprevalence of porcine cysticercosis in traditional pig farms in the departments of Dabou, Aboisso and Agboville where blood samples were taken from pigs and analyzed by ELISA (IgG) and western blot. Data on farming practices and pig characteristics were collected. Categorical variables were compared with the Chi2 test and continuous variables with the Student test. Multivariate logistic regression models were constructed to identify risk factors. Results: A total of 668 pigs were sampled from 116 farms. The seroprevalence of cysticercosis was estimated at 13.2%. Overweight [ORa=2.6; 95%CI(1.3-4.9)] and fat pigs [ORa=2.3; 95%CI(1.0-4.8)] were twice as likely to be seropositive for cysticercosis. This risk was increased in farms using well water for drinking [aOR=2.5; 95%CI(1.0-6.3)] as well as those reporting veterinary care of the animals (ORa=2.9; 95%CI (1.2-7.3)). Conclusions: This study demonstrated the circulation of T. solium in pig farms in southern Côte d'Ivoire.
The Ever-Expanding Pseudomonas Genus: Description of 43 New Species and Partition of the Pseudomonas Putida Group
Authors: Girard Léa , Lood Cédric , Höfte Monica , Vandamme Peter , Rokni-Zadeh Hassan , van Noort Vera , Lavigne Rob , De Mot René
Published: July 2021

The genus Pseudomonas hosts an extensive genetic diversity and is one of the largest genera among Gram-negative bacteria. Type strains of Pseudomonas are well-known to represent only a small fraction of this diversity and the number of available Pseudomonas genome sequences is increasing rapidly. Consequently, new Pseudomonas species are regularly reported and the number of species within the genus is in constant evolution. In this study, whole genome se-quencing enabled us to define 43 new Pseudomonas species and to provide an update of the Pseu-domonas evolutionary and taxonomic relationships. Phylogenies based on the rpoD gene and whole genome sequences, including 316 and 313 type strains of Pseudomonas, respectively, re-vealed sixteen groups of Pseudomonas and justified the partitioning of the P. putida group into fifteen subgroups. Pairwise average nucleotide identities were calculated between type strains and a selection of 60 genomes of non-type strains of Pseudomonas. Forty-one strains were incor-rectly assigned at the species level and among those, 19 strains were shown to represent an addi-tional 13 new Pseudomonas species that remain to be formally classified. This work pinpoints the importance of correct taxonomic assignment and phylogenetic classification in order to perform integrative studies linking genetic diversity, lifestyle and metabolic potential of Pseudomonas spp.
Pre-Intervention Effects of a Community-Based Intervention Targeting Alcohol Use (LEF);
The Role of Participatory Research and Publicity
Authors: Koning Ina , van der Rijst Vincent G. , de Wit John B. F. , Kock Charlotte De
Published: July 2021

This study explores the impact of the ‘pre-intervention effects’ of a community-based interventions. This refers to participatory research processes and parallel publicity in the media on changes in alcohol use and relevant mechanisms (rules and norms about alcohol, accessibility of alcohol in a formal setting) among adolescents before any intervention is implemented. In a quasi-experimental study, adolescent data were collected twice by means of self-report among adolescents living in two municipalities (control and experimental condition). Regression analysis showed pre-intervention main effects on adolescents’ perceived accessibility of alcohol in a formal setting. Moreover, among adolescents aged 15 years and older, the normative decline in strictness of rules and norms was less steep in the experimental condition compared to the control condition. Also, adolescents aged 14 years and younger in the experimental condition reported more weekly drinking compared to their peers in the control condition. No differential effects across gender were found.
To conclude, applying a co-creational approach in the development of an intervention, not only contributes to more effective interventions in the end, but involvement of and discussions in the community at the start of intervention planning are contributing to changes in targeted factors. This implies that public discussions about the development of intervention strategies should be considered as an essential feature of co-creation in community-based interventions.
Multi-label feature selection based on logistic regression and manifold learning
Authors: Zhang Yao , Ma Yingcang , Yang Xiaofei
Published: July 2021

Like traditional single label learning, multi-label learning is also faced with the problem of dimensional disaster.Feature selection is an effective technique for dimensionality reduction and learning efficiency improvement of high-dimensional data. In this paper, Logistic regression, manifold learning and sparse regularization were combined to construct a joint framework for multi-label feature selection (LMFS). Firstly, the sparsity of the eigenweight matrix is constrained by the $L_{2,1}$-norm. Secondly, the feature manifold and label manifold can constrain the feature weight matrix to make it fit the data information and label information better. An iterative updating algorithm is designed and the convergence of the algorithm is proved.Finally, the LMFS algorithm is compared with DRMFS, SCLS and other algorithms on eight classical multi-label data sets. The experimental results show the effectiveness of LMFS algorithm.
Muhammad Abduh and His Epistemology of Reform: Its Essential Impact on Rashid Rida
Authors: Amir Ahmad Nabil
Published: July 2021

This paper analyze the influence of Muhammad ‘Abduh on his chief disciple, Muhammad Rashid Rida. Rida was the leading advocate of Abduh’s rational principle and modern ideas through his writing in Tafsir al-Manar (The Manar Commentary) and Tarikh al-Ustadh al-Imam Muhammad Abduh (Biography of Muhammad Abduh). Tafsir al-Manar is a Qur’anic exegesis based on rational approach outlined by Muhammad ‘Abduh and the Tarikh is a comprehensive biography of the life and works of Muhammad Abduh printed in three volumes that significantly documented Abduh’s lasting influence and legacy in modern Egypt. Rida continued to resolutely champion the ideas of reform through Majallat al-Manar (al-Manar Journal) that highly reverberated Abduh’s principles and remarkably claimed extensive influence in contemporary Islamic world.
Pengaruh Harga Diri Terhadap Perilaku Social Climber Pada Mahasiswa Bimbingan dan Konseling Universitas Negeri Semarang
Authors: Musafa'ah Iin , Sugiyo Sugiyo
Published: July 2021

The Effect of Self-Esteem on Social Climber Behavior in Guidance and Counseling Students, Semarang State University. This study aims at examining the influence of self-esteem on social climber behavior on Guidance and Counseling students at Universitas Negeri Semarang. These phenomena were related to the behavior of social climber. The most highlighted social climber behavior on students reflected in their lifestyle, e.g. their appearance and circle. This phenomenon happened because of the desire to get recognition from the surroundings. The research was a quantitative method using a psychological scale to collect the data. The results of this study showed that there was a significant relationship between self-esteem and social climber behavior on students. The results of this study are useful for Guidance and Counseling teachers to provide more innovation in conducting Guidance and Counseling services, especially in order to be able to guide individuals with social climber behavior to become individuals who want to accept themselves as they are.
Keywords: Self-Esteem, Lifestyle, Social Climber Behavior
Implementasi Bimbingan Belajar Mengulang Kelas dalam Menumbuhkan Kemampuan Akademik Siswa Baru di Madrasah Qudsiyyah Kudus
Authors: Yasfin Moh Anwar , Ula Ahmad Nilnal Munachifdlil
Published: July 2021

Implementation of Class Repetition Guidance in Developing Academic Ability of New Students at Madrasah Qudsiyyah Kudus. This study aims to describe the implementation of repeating class tutoring in growing the academic abilities of new students at Madrasah Qudsiyyah Kudus. This study uses Field Research Methods (field research) with qualitative descriptive analysis techniques. The research data collected was then analyzed using a deductive approach and an inductive approach. The results showed that first, the guidance process in repeating classes for new students entering the Madrasah Qudsiyyah Kudus was that when they wanted to enter the Madrasah Tsanawiyah level, they had to repeat the first class in MI class voluntarily, even though they had graduated from SD or MI. Second, the tutoring for repeating the classes carried out at Madrasah Qudsiyyah is by grouping according to their abilities. Fourth, the tutoring model for repeating classes at Madrasah Qudsiyyah is carried out in groups by forming a separate curriculum which can focus on the basic salafiyah curriculum as a provision of salafiyah material at an advanced level. Fifth, this basic salafiyah guidance material is carried out by all teachers, not only burdened by counselors.
Keywords: Guidance, Repeating Class, Madrasah Qudsiyyah
Validating a Low-Fidelity Model for Microsurgical Anastomosis Training
Authors: Mohammad Saeed , Hanstein Regina , Lo Yungtai , Levy I. Martin
Published: July 2021

Background:

With cost, size, and availability in mind, we developed a low-fidelity microsurgery anastomosis model for mastery of the tool skills needed to execute microsurgical procedures. The model combined the use of a cannulated Konnyaku Shirataki (KS) noodle with a low-cost, industrial inspection, trinocular stereo (IITS) microscope. The purpose of this study was to establish face and construct validity of this novel “combined” microsurgery training tool.

Methods:

Fifteen participants, divided into 3 groups based on microsurgery experience, attempted microsurgical anastomoses of a cannulated KS noodle using the IITS microscope. Participants were asked to (1) manipulate the noodle ends adjacent to each other, (2) place a single 7-0 nylon suture through the opposed ends, and (3) complete the anastomosis. To determine construct validity, the performance of the microsurgical repair (maximum score 53 points) and time-to-anastomosis was assessed. To determine face validity, microsurgeons were given a 25-item, 5-point scale survey rating their experience with the model.

Results:

Participants included 5 microsurgeons, 5 experienced trainees, and 5 novices. The microsurgeons judged the IITS microscope to be a close analog to an operating microscope (4.6/5 points), the combined model to have high educational value (4.7/5 points), and somewhat technical similarity with microsurgery in the operating room (OR) (3.7/5 points). The median technical score was 50 among microsurgeons, 40 among experienced trainees, and 27 among novices. Increased training level was associated with greater technical score among all 3 groups (p=0.002). The median time-to-anastomosis was 5.88 minutes for microsurgeons, 8.37 minutes for experienced trainees, and 17.10 minutes for novices. Increased training level was associated with shorter time-to-anastomosis (p=0.003).

Conclusion:

The use of the KS noodle with a benchtop stereo microscope is a novel approach to microsurgical training. It is inexpensive, available, conducive to high-repetition training, and suited to many learning environments. Microsurgeons found that this combined model was representative of microsurgery in the OR, and we concluded face validity. Furthermore, an association was demonstrated between training level and performance on the model, suggesting construct validity.