bluuebunny/crossref_metadata_2025 huggingface dataset:
DESAIN DIALOG MAHASISWA MENGGUNAKAN POSITIVE REINFORCEMENT DAN FACEBOOK
Authors: Habibi Habibi
Published: March 2021

Dialog antar mahasiswa dan dosen dalam perkuliahan dapat meningkatkan kemampuan berkomunikasi, menganalisis dan juga memperluas materi perkuliahan agar menjadi lebih kontekstual. Studi pendahuluan di Prodi Pendidikan IPA Universitas Wiraraja menunjukkan bahwa dialog mahasiswa di dalam perkuliahan masih minim. Perkembangan teknologi informasi seperti facebook yang sangat digemari mahasiswa sebenarnya sangat potensial digunakan untuk mengembangkan dialog pendukung perkuliahan. Penelitian ini bertujuan untuk mengembangkan dialog mahasiswa menggunakan positive reinforcement dan facebook. Tujuan spesifik pada tahapan ini adalah (1) mendeskripsikan permasalahan yang dihadapi mehasiswa untuk dapat terlibat aktif dalam dialog, dan (2) mendesain suatu aktivitas dialog mahasiswa berdasarkan solusi atas permasalahan yang mereka hadapi tersebut.  Metode penelitian yang digunakan adalah deskriptif kualitatif. Teknik pengumpulan data dengan menggunakan penyebaran angket, wawancara dan observasi. Istrumen yang digunakan adalah angket, pedoman wawancara dan lembar observasi. Teknik analisis yang digunakan adalah analisis interaktif yang diadobsi dari Miles dan Huberman (1992). Hasil analisis memberi temuan bahwa permasalahan dialog mahasiswa meliputi (1) kurang percaya diri, (2) pujian bersifat nonspesifik dan (3) keterbatasan waktu. Berdasarkan pokok-pokok permasalahan tersebut dialog mahasiswa didesain dengan menggunakan teknik (1) penilaian keaktifan, (2) pujian spesifik dan (3) grup diskusi di facebook.s New Roman"; mso-ansi-language:IN;mso-fareast-language:IN;mso-bidi-language:AR-SA'>Pembelajaran Discovery Learning dalam pembelajaran IPA akan meningkatkan aktifitas siswa dalam belajar baik secara individu maupun secara kelompok. Meningkatnya aktifitas siswa dalam pembelajaran membuat siswa semakin bersemangat dalam belajar dan akan meningkatkan hasil belajar siswa.
MENINGKATKAN PRESTASI BELAJAR FISIKA SISWA MELALUI PENGGUNAANMODEL PEMBELAJARAN PROBLEM BASED INTRODUCTUONDI KELAS X/MIA-4 SMAN 1 SUMENEP TAHUN PELAJARAN 2013/2014
Authors: Hasan Zainal
Published: March 2021

Tujuan dari penelitian ini adalah untuk meningkatkan prestasi belajar fisika siswa di kelas X-MIA4 SMA Negeri 1 Sumenep tahun pelajaran 2013/2014. Pendekatan metoda penelitian ini adalah deskreptif kualitatif menggunakan analisis  program SPSS versi 11.05 for Windows, sedangkan jenis penelitian ini adalah penelitiantindakan kelas(Collaborative Classroom Action Reseach) dengan populasi/sampelnya adalah siswa kelas X-MIA4 SMA Negeri 1 Sumenep tahun ajaran 2013/2014, Pengambilan sample dalam penelitian ini menggunakan teknik Cluster Random Sampling terdiri dari 37 siswa mewakili kelas yang tidak diteliti. Data sample diperoleh dengan menggunakan teknik observasi, angket Interviw, documenter dan hasil test. Kesimpulan yang diperoleh adalah pada tahun pelajaran 2013/2014 penggunaan model pembelajaran problem based introductuon dapat meningkatkan prestasi belajar fisika  siswa di kelas X-MIA4 SMA Negeri 1 Sumenep. Hasil penelitian ini diharapkan dapat digunakan sebagai referensi sekaligus sebagai rekomendasi kepada pihak terkait guna peningkatan mutu pendidikan di sekolah masing-masing
EFEKTIVITAS PEMBELAJARAN PEMAKNAAN PADA PELAJARAN IPA TERHADAP CHARACTER BUILDING SISWA MTsN TERATE PANDIAN SUMENEP
Authors: Qari'ah Al , Habibi Habibi , Yudiati Rini
Published: March 2021

Kemorosotan akhlak dan moral siswa perlu segera mendapatkan penanganan serius dari lembaga pendidikan yang ikut bertanggung jawab memberi pendidikan dengan proses dan model pembelajaran yang ditawarkan, salah satunya yaitu penerapan pembelajaran pemaknaan. Tujuan penelitian ini adalah untuk mengetahui keterlaksanaan pembelajaran pemaknaan dan perbedaan character building siswa pada pembelajaran IPA di kelas eksperimen dan kontrol sehingga dapat dijadikan landasan sebagai gambaran efektivitas pembelajaran pemaknaan terhadap character building siswa pada pelajaran IPA. Jenis penelitian yang digunakan yaitu deskriptif kuantitatif dengan teknik analisis data yaitu menggunakan statistik deskriptif dan uji t independen. Hasil penelitian didapatkan pelaksanaan pembelajaran pemaknaan mencapai 81%. Character building siswa kelas yang mengikuti pembelajaran pemaknaan dengan non-pemaknaan terdapat perbedaan sebesar 6,34 (Output uji T). Karakter siswa mengalami peningkatan pada karakter sosial, sedangkan karakter pribadi cenderung menurun. Karakter tanggung jawab, disiplin, dan demokratis memiliki peningkatan yang terendah.
Geophysical prospecting for epithermal gold deposits (a case study from the Maletoivayam gold ore field, Kamchatka Peninsula)
Authors: Gurin G. V.
Published: March 2021

Research subject. The high-sulfidation (HS-type) epithermal gold deposits of the Maletoyvayam ore field, which is located in the volcanic belts of the Kamchatka Peninsula. Materials and methods. The paper presents the results of geophysical and petrophysical studies carried out by “NPP VIRG-Rudgeofizika” (2016–2017 years) in the central part of the Maletoyvayam ore field hosting HS-type gold deposits. Results. The presented case study shows the potential of geophysical prospecting for HS-type epithermal gold deposits located within altered rock areas. On the basis of the conducted magnetic surveys, fragments of a ring structure broken by faults and the hydrothermally altered bodies within the Neogene volcanogenic-sedimentary sequence of the andesite composition were identified. Using the 3D inversion of magnetic data, the shape, size and structure of the hydrothermally altered bodies were estimated. The electrical survey data allowed the hydrothermally altered areas to be differentiated in terms of composition. As a result, zoning of hydrothermally altered areas was conducted, and ore-bearing sites and gold-bearing bodies of monoquartzites in the plan and cross-section were determined. Conclusions. Geophysical techniques for prospecting HS-type epithermal gold deposits are effective in distinguishing important gold-related features within the altered zone thereby facilitating identification of specific drill targets.
Local geochemical features of Lower Paleozoic rocks in the area of Duderhof dislocations (North-West of the Russian plate)
Authors: Terekhov E. N. , Kolodyazhny S. Yu. , Baluev A. S. , Okina O. I.
Published: March 2021

Research subject. A geochemical study of Cambrian-Ordovician deposits was carried out within the area of the Duderhof dislocations of the platform cover of the southern frame of the Baltic shield. Materials and methods. The ICP-MS method was used to study 14 samples of sandstones, limestone, phosphorites and black shales, which comprise both weakly dislocated stratified formations (stratified horizons) and strongly deformed formations, as well as secant dome-like and dike-like bodies. Results. Geochemical studies showed that, in the zones of tectonic disturbances, lower Paleozoic deposits are characterized by high concentrations of a number of trace elements, significantly exceeding the Clark values for sedimentary rocks. This applies to such chemical elements, as Be, Sc, V, Co, Ni, Cu, Mo, Pb, Th and U. At the same time, the concentrations of V and U are higher than those in the developed fields of Estonia and Sweden. An analysis of the cambriansands of the sablin formation showed that the eastern (Archean) part of the Baltic shield could not have been the source of food for their formation. The presence of leucoxene in the sands of the Sablinsky formation, a mineral formed by ilmenite under the influence of high temperatures, and the presence of mechanically unstable minerals in dike-like formations, indicate the influence of deep fluids on the sedimentary cover, whose flows moved along fault zones and carried the above-mentioned chemical elements to the near-surface layers of the earth’s crust. All this points to the endogenous rather than exogenous (glacial) nature of secondary structural-material transformations in the area of the Duderhof dislocations, as well as their genetic relationship with deformations in the Baltic-Mezen shear zone.
Acute hemorrhagic edema of infancy - is it really a mild, benign disease?
Authors: Medovic Rasa , Medovic Marija , Igrutinovic Zoran , Vlahovic Aleksandar , Kostic Gordana , Ristic Gordana , Vuletic Biljana , Markovic Slavica
Published: March 2021

Background. Acute hemorrhagic edema of infancy (AHEI) is a rare vasculitis, which presents dramatically as palpable purpuric skin lesions on the limb, face and auricles, with swelling of these parts and low-grade fever, in children up to 2 years of age. To date, approximately 400 cases have been described in the literature. The etiology remains mostly unknown. With or without treatment, AHEI goes to spontaneous recovery within 1-3 weeks, usually without any complications. To our knowledge, compartment syndrome as complication of AHEI has only been reported in one case. We present an unusual case of AHEI with serious complications due to compartment syndrome of the right-hand fingers.
Case. A 16-month-old male child presented with fever and sudden appearance and rapid spread of palpable, painless, non-itching ecchymotic hematomas on the thigh, cheeks, earlobes, forearms, dorsum of hands and feet, with mild edema of these regions. Complete systemic examination and all vital parameters were normal for age. There was no history of bleeding disorders in the family. Except low hemoglobin on complete blood count and increased D-dimer values, all other laboratory investigations were in the normal range. Changes on the right forearm and hand expanded on almost the entire dorsal side and all surfaces of the fingers, with pronounced swelling and formation of bullous lesions, which were spreading and cracking. Skin biopsy confirmed nonspecific small-vessel vasculitis. That required the use of Methylprednisolone, low-molecularweight heparin, antibiotics and debridement of necrotic eschar, with necrectomy of the affected fingers.
Conclusions. Early recognition of AHEI is important to avoid unnecessary investigation and therapy. On the other hand, our reported case warns that unexpected complications may occur.
Corrupción académica en la educación superior: Cómo identificarla y cómo hacerle frente
Authors: Jongitud Jaqueline
Published: March 2021

Los aportes teóricos en torno a la corrupción de las últimas décadas han permitido revalorar las investigaciones previas, alcanzar una mayor claridad acerca del problema y llegar a ciertos puntos de acuerdo en relación al mismo. Actualmente resulta evidente para la doctrina especializada que la corrupción es un problema persistente, multifacético y complejo. Difícil de asir y más de combatir, pues tiene muchos rostros. Para el problema de la corrupción también se ha sugerido que la educación puede ser una vía para su prevención y combate, pero ¿Qué sucede si la educación ha sido capturada por el fenómeno? Muy simple, la educación se vuelve parte del problema, no parte de la solución, y con ello se pierde a una de las más importantes y potentes aliadas en la lucha contra la corrupción. De ahí el interés por abordar la corrupción, por tratar de entender qué es la corrupción académica y cuáles son las notas que le caracterizan en la educación superior. Este libro trata del «elefante en la habitación». El mismo tratando de dejar atrás los mitos, evitando posiciones esencialistas o deterministas, y reconociendo que ningún ser humano está exento de la corrupción y que nadie está destinado a ser corrupto. Es un estudio que se propone aclarar los conceptos de corrupción y formular una manera de entender a la corrupción académica en las Instituciones de Educación Superior. Una forma que vaya más allá de los estrechos límites de la ley y que considere los bienes internos de las funciones sustantivas universitarias, que son los educativas de nivel superior.
Deciphering the Mediterranean Policy of France through the lens of Islamophobia, Populism, and Turkey
Authors: Yıldırım Galip Emre
Published: March 2021

France’s Mediterranean policy can be analyzed from a historical perspective and through the actual conjuncture related to its geopolitical and geo-cultural elements, such as the West-East civilization dilemma and colonization background. Although these two elements are complementary to each other, they intersect with the political and economic interests of the Turkish state in the region. France’s policy has become intertwined with its involvement in the Eastern Mediterranean dispute against Turkey as a result of the natural gas discovery in recent years in the region. France’s identification of Turkey as an ‘external enemy’ reflects the former’s political and economic concerns in regard to the Mediterranean gas reserves. Therefore, the envisaged French leadership in the region insists that the EU adopt an exclusionary political approach toward Turkey with the political and diplomatic support of France for Greece and Cyprus. The existing regional problems, however, need to be resolved on the basis of equity, not by ignoring the rights of the parties, but by integrating them. This is necessary for the peaceful resolution of these concerns
Russia-GCC Economic Relations: When Quality Matters more than Quantity
Authors: Kozhanov Nikolay
Published: March 2021

During the last five years, Russian relations with the GCC have developed on a largely positive trajectory. Even Moscow’s decision to leave the OPEC+ agreement and launch a price war with Saudi Arabia in March 2020 did not threaten the gains made by Russian diplomacy in the region. Following a cooling-off period in 2012-2014 caused by the negative reaction of the GCC States to the Russian support of the Assad regime in Syria, the overall rapprochement continued. When explaining the complex mixture of factors that are driving Moscow’s dialogue with the GCC member states regardless of occasional political turbulence they usually refer to the growing intensity of Moscow’s presence in the region, changing dynamics of the U.S. relations with Russia and the GCC, existing tensions between Middle Eastern countries as well as the transformation of GCC foreign policy vision. Yet, the economic factors usually remain underestimated. Consequently, this article will try to prove the importance of the economic factors for the current development of Russia’s relations with the Gulf States. It will also assess the prospects for continued economic cooperation between GCC capitals and Moscow including an analysis of the ability of the sides to bring these relations to a new qualitative level.
A New Alliance Axis in the Eastern Mediterranean Cold War: What the Abraham Accords Mean for Mediterranean Geopolitics and Turkey
Authors: Güney Nurşin Ateşoğlu , Korkmaz Vişne
Published: March 2021

The new Cold War has arrived in the Eastern Mediterranean. At the strategic level, Chinese economic and Russian military assertiveness have led the U.S. to think twice about its mistakes, which opened up a power vacuum in this strategic geopolitical realm. Until today, the U.S. has seemed to use three axes of alliances that have emerged as Israeli-based, flexible, and benefit-oriented alignments at the level of regional rivalry. These alignments, especially in the context of the Abraham Accords, are unfortunately expected to reinforce pre-existing divisions in the region unless a radical change occurs. This study examines how and why Washington must embrace the logic of alliance axes to shape the Eastern Mediterranean and explores the projected impact of the U.S.-initiated Abraham Accords on regional geopolitics.
Cryptanalysis of a secret sharing scheme
Authors: Maitra Subhamoy , Nandi Kaushik
Published: March 2021

In this correspondence, we point out a major security problem in the secret sharing scheme proposed in QIC 12(3-4), 0253-0261, 2012.
Efficient classical simulations of quantum Fourier transforms and Normalizer circuits over Abelian groups
Authors: Van den Nest Maarten
Published: March 2021

The quantum Fourier transform (QFT) is an important ingredient in various quantum algorithms which achieve superpolynomial speed-ups over classical computers. In this paper we study under which conditions the QFT can be simulated efficiently classically. We introduce a class of quantum circuits, called \emph{normalizer circuits}: a normalizer circuit over a finite Abelian group is any quantum circuit comprising the QFT over the group, gates which compute automorphisms and gates which realize quadratic functions on the group. In our main result we prove that all normalizer circuits have polynomial-time classical simulations. The proof uses algorithms for linear diophantine equation solving and the monomial matrix formalism introduced in our earlier work. Our result generalizes the Gottesman-Knill theorem: in particular, Clifford circuits for $d$-level qudits arise as normalizer circuits over the group ${\mathbf Z}_d^m$. We also highlight connections between normalizer circuits and Shor's factoring algorithm, and the Abelian hidden subgroup problem in general. Finally we prove that quantum factoring cannot be realized as a normalizer circuit owing to its modular exponentiation subroutine.
Alveoloplasty: A Case Report of Recontouring The Alveolar Process
Authors: Diksha Agrawal  , Priyanka Jaiswal  , Prasad Dhadse  , Kashish Mangal
Published: March 2021

Alveoloplasty is one of the common pre-prosthetic surgical procedure carried out in dental surgical practice setups. A. T. Willard in 1853 advocated reduction of the alveolar ridge to bring about the complete proximity of soft tissues over the alveolus. Sir O. T. Dean first proposed “Intra-septal alveoloplasty” in the American Dental Association journal in 1936 so, named as Dean's alveoloplasty. The objective of Pre-prosthetic surgeries provide adequate bony tissue support for the placement of complete dentures. the characteristics of ideal denture base are adequate bony support with proper soft tissue coverage, no undercuts, no sharp ridges. Preprosthetic surgical treatment must begin with a thorough history and physical examination of the patient. The aim of the alveoloplasty procedure is used for recontouring of bony irregularities at the time of extractions or after initial healing. This case report illustrates case of a 71 year old healthy male. On examination who revealed irregular bony spicules on the edentulous ridge. After complete evaluation, alveoloplasty procedure was performed to smoothen the ridge. Proper diagnosis of the condition of edentulous ridges are important for successful fabrication of complete dentures. Every effort should be made to ensure that both the hard and soft tissues are developed in a form that will enhance the patient's ability to wear a denture.
Advanced Comprehensive Rehabilitation Approach for Post-operative patient with Anterior Mediastinal Tumor: Atypical Case Report
Authors: Angela Kapoor  , Vaishnavi Yadav  , Pratik Phansopkar
Published: March 2021

Myasthenia gravis (MG) is an autoimmune disease in which muscle weakness and fatigability of the skeletal muscle are as a result of an antibody at the neuromuscular junction against the acetylcholine receptor (AChR) affecting ladies and older men. A thymoma occurs in approximately 15 per cent of adult diagnosed with Myasthenia gravis (MG). Thymectomy is used as a surgical approach which helps to reduce the symptoms. Structured comprehensive physiotherapy rehabilitation post-surgery helps to achieve a successful functional recovery. A 61 year old male patient was admitted with complain of lump in neck region, generalised weakness and early fatigability while doing Activities of daily living since 2 months. Investigations were done for the same which revealed thymoma and surgical intervention i.e. thymectomy was performed. Patient was referred to post opt rehabilitation with complains of incisional pain, cough with expectoration, early fatigue performing basic Activities of daily living and reduced strength. Following the surgery patient underwent physiotherapy which comprised of exercises, breathing retraining and early mobilization. The case report concludes that early excision of thymoma with prompt tailor made supervised exercise program helps in early recovery and achievement of functional goal.
THE DETERMINANTS OF CERVICAL CANCER EARLY DETECTION BEHAVIOUR WITH VIA TEST METHOD IN VISITORS OF POLI KIA-KB IN KASSI-KASSI PUBLIC HEALTH CENTER OF KOTA MAKASSAR
Authors: Qura Ummul , Ansar Jumriani , Arsyad Dian Sidik , Dwinata Indra , Ikhsan Muh , Suriah Suriah
Published: March 2021

Background: Cervical cancer can be recognized at the pre-cancer stage by doing early detection test in married women. One of the cervical cancer early detection methods is Visual Inspection with Acetic Acid (VIA) test. The coverage of the early detection of cervical cancer through VIA test method in 2017 was still very low, i. e. 1.03% from the national target of 50%. The research aims to know the determinants of cervical cancer early detection behaviour by using IVA test method in visitors of Policlinic KIA-KB (Pediatric and Family Planning Polyclinic) in Kassi-Kassi Public Health Center.Methods: The research was observational analytical research with cross-sectional study design. The population of the study was all women of fertile couple that visited Policlinic KIA-KB in Kassi-Kassi Public Health Center and lived within the coverage area of Kassi-Kassi Public Health Center, which amounted to 135 women. The samples were 101 women that were collected by using the accidental sampling technique.Results: The results showed that there was a relation between knowledge (p=0.000), attitude (p=0.005), husband support (p=0.000), as well as health worker support (p=0.000) and early detection behaviour by using IVA test method. Conclusions: Meanwhile, there was no relation between education and early detection behaviour by using IVA test method. There should be proactive and creative actions from health workers in improving the knowledge of the targets and their husbands about early detection of cervical cancer.
HOSPITAL MANAGEMENT INFORMATION SYSTEMS ACCEPTANCE AT WONOSARI REGIONAL HOSPITAL, GUNUNGKIDUL, YOGYAKARTA, INDONESIA
Authors: Aula Ahmad Samratul
Published: March 2021

Background: The hospital management information system (HMIS) is a computer system that processes entire health care business processes, including reporting and administrative procedures, to obtain information quickly, precisely, and accurately. The Wonosari Regional Hospital is a type B hospital that has implemented the HMIS. This study aimed to analyse the HMIS use in the Wonosari Regional Hospital, Gunungkidul, Yogyakarta.Methods: This is a quantitative study using a cross sectional design. Seventy-nine staffs participated in this study that recruited using the purposive sampling technique. Data were collected using a pre-tested questionnaire, then analysed statistically.Results: Perceived ease of use was found significant (p-value â‰¤ 0.05) associated with HMIS use.Conclusions: Perceived ease of use influenced the use of HMIS at the Wonosari Regional Hospital, Gunungkidul, Yogyakarta.
Producing Good Stories in English As A Foreign Language: Analysis of The Kurdish Efl Learners’ Oral “frog Story” Narratives
Authors: Rajab Ebrahim Hallat
Published: March 2021

By focusing on the structural elements particularly the evaluative devices by (Labov & Waletzky, 1967) and (Peterson & McCabe, 1991), this study examined how the Kurdish participants’ narrative discourse deviate from the target language discourse, and how this deviation is explained in line with the cultural discourse strategies in both types of discourse (Kurdish and English). This study analyzed the frog narratives told by the EFL Kurdish participants (in Kurdish and English) and the American speakers with special attention on the narrative length, narrative structure and evaluative devices. The findings from the T-test and MANOVA statistics revealed cross-cultural patterns of differences between the narratives told by the Kurdish and the American speakers. Generally, the narratives told by the American participants were longer than those told by the Kurdish participants in both Kurdish and English. The American speakers elicited narratives with frequent evaluation. Conversely, the Kurdish participants constructed narratives with higher number of durative (descriptive) clauses, orientation and repetition.
Linking performance pressure to employee work engagement: the moderating role of emotional stability
Authors: Kundi Yasir Mansoor , Sardar Shakir , Badar Kamal
Published: March 2021

PurposeThe purpose of this paper is to investigate the mediating role of threat and challenge appraisals in the relationship between performance pressure and employees' work engagement, as well as the buffering role of emotional stability, as a personal characteristic, in this process.Design/methodology/approachData were collected using a three-wave research design. Hypotheses were examined with a sample of 247 white-collar employees from French organizations.FindingsPerformance pressure is appraised as either threat or challenge. Challenge appraisal positively mediated the performance pressure and work engagement relationship, whereas threat appraisal negatively mediated the performance pressure and work engagement relationship. Emotional stability moderated these effects, suggesting performance pressure was appraised as a challenge rather than a threat, which then enhanced employee work engagement.Practical implicationsThis study has shown that employees with high emotional stability who perceived performance pressure as a challenge achieved stronger employee work engagement.Originality/valueBuilding on Lazare's theory of stress and Mitchell et al. 's theorization, this research demonstrates mediating and moderating mechanisms driving the role of performance pressure on employee work engagement relationships.
Bilingual’s Advantages of not Using Mutual Exclusivity
Authors: Zheng Shuai
Published: March 2021

It is a known fact that monolingual children will take advantage of the principle of mutual exclusivity (ME) in the process of early word learning, i.e., the names of two different objects are mutually exclusive (one label for one referent). With the help of ME, they can expand their vocabulary effectively with a rapid speed. However, for bilingual children, it seems this principle is not that friendly to them, since they are exposed to two languages at the same time, so there could be at least two labels for the same referent. Hence bilingual children may be confused and encounter difficulties in learning words, which will slower their word learning process. This paper tries to, based on earlier research, probe into the question that how bilingual children acquire words without the help of ME, and explore whether there are advantages of not using ME in word learning for bilingual children.
Research on the Cultivation of Pharmaceutical Talents in the Context of Science and Education Integration
Authors: Tang Gui-Mei , Wang Xiao , Wang Yong-Tao , Tian Yan
Published: March 2021

This paper mainly focuses on the cultivation of pharmaceutical talents under the background of science and education integration. By analyzing the basic concepts of science and education integration, this paper explores the training principles that should be adhered to in the process of pharmaceutical talents training in colleges and universities.
Pro-Social Behaviour Analysis of Students through Students’ Organizations
Authors: Hidayah Yayuk , Ali Yusuf Faisal , Suryaningsih Anis
Published: March 2021

Student organization as a place to develop the talents of the students in the form of aspirations, ideas, and creativity to provide opportunities for students to be able to nurture their sense of organization. In student organizations, students are met with certain conditions that bring on pro-social attitudes. The purpose of this study is to analyze, describe, and assess the pro-social behaviour of students through student organizations. This research is descriptive qualitative research. Collecting data through observation, interviews and documentation. Analysis of the data is done by using the model of Miles and Huberman. This study results that students involved in student organizations have social behaviours such as empathy, social responsibility, and low egocentrism. The factors that affect student Pro-social attitudes are the environment, knowledge and personality. Mankind as the main source in the organization should be able to develop individuals with certain criteria. Coaching intensively and encouragement over the ownership of Pro-social attitudes for students are solutions to the emergence of the smart and good citizen.
Legal Documentation of Eurobonds from Russian Issuers
Authors: Tarasov A.
Published: March 2021

The Eurobond market is one of the main sources of raising international finance for leading Russian corporations and financial institutions. I presented the general description of the structural parameters of Eurobonds, as well as the main phases of the issuing process. The focus of this article is on the documentation aspects of the Eurobond market, since preparing the legal documents is one of the key goals of the transaction execution process. An overview of the primary Eurobond documents is provided, including the Prospectus, the Mandate & Engagement Letters, the Trust deed, the issuing & Paying Agency Agreement, the deed of Covenant. The roles and functions of the involved parties (issuer, Arranger, dealers, Legal Counsels) and the documentation process of Eurobonds which I described in detail. Also, I presented a comparison of issuing Eurobonds utilising stand‑alone documentation or Euro Medium Term Note Programme. The purpose of setting up a programme is to enable Eurobonds to be issued quickly and efficiently and, by using one set of documentation, to reduce the amount of paperwork and management time for the issuer.
Renewable Energy Consumption and its Main Drivers in Latin American and Caribbean Countries: A Robust Analysis Between Static and Dynamic Panel Data Models
Authors: Menéndez-Carbo S.
Published: March 2021

This study examines the potential drivers of renewable energy consumption for 22 Latin American and Caribbean countries during 2005–2014. I use the sys-GMM method to deal with the presence of endogeneity, countryspecific components and serial correlation within observations. Results confirm the dynamic behaviour of green energy consumption. Moreover, GDP per capita and CO2 emissions per capita are the determinants of this clean energy source. The positive effect of per capita GDP implies that a non-depleting alternative source has been used to satisfy an increasing energy demand, which was experienced due to the acceleration of economic growth in the region. On the other hand, the negative effect of per capita CO2 emissions reflects the weight that fossil fuels have in the energy mix. Because of some of the analysed countries’ oil-producer nature, oil prices rise is not enough for a switch response.
The Implementation of Pesantren Financing Based on Agribusiness Social Entrepreneurs
Authors: Badrudin Badrudin , Satori Djam’an , Komariah Aan , Kurniady Dedy Achmad
Published: March 2021

The sources of pesantren funding are limited either from the government, santri parents, or the community. The government has not budgeted pesantren funds in the state budget or regional budget even though there is a policy for pesantren. The search for pesantren financing sources based on the potential of the agribusiness-based social entrepreneurship environment is very desirable. This article aimed to examine the implementation of pesantren financing based on agribusiness social entrepreneurship. Data collection techniques were carried out with the study of documentation, observation, and interviews with the planning, implementation, supervision, evaluation, and accountability of pesantren financing. The study found that Pesantren Al Ittifak Ciwidey in Bandung District implemented agribusiness-based social entrepreneurship financing through five steps namely planning, implementing, controlling, evaluating, and accountability. The study concluded that the implementation of pesantren financing based on agribusiness social entrepreneurship Al Ittifak Ciwidey Bandung was prepared through accounting (budgeting), namely preparing activity plans and pesantren budgets using SWOT analysis; Funding was carried out to finance underprivileged students, to pay teachers, professional development (training), and infrastructure; Supervision of education funding in PPAI Al Ittifak Ciwidey was carried out by the PPAI Management Team, Kiyai, and the board of educators by monitoring, guiding, and solving problems to the RAPBP, Cash, and Equipment; Funding evaluation was carried out at the end of each semester and the end of the school year. Funding accountability was focused on the parents of students, the community, and the Government as well as the PPAI leader, Kiyai.
Ultimate spans and optimal rise relations of steel arches
Authors: Järvenpää Esko , Jutila Arne
Published: March 2021

Arched structures have been in use more than three thousand years. The span length of the arch in bridge construction has already exceeded 550 meters. Even longer arch bridges have been designed. The development of arch structures has not been as fast as in cable-stayed bridges during the resent 30 years, when cable-stayed bridges have reached spans more than 1100 m. However, arch structures are becoming more common, especially in bridges.

The purpose of this paper is to arouse interest in arch structures as well as to open up basic issues related to optimal arch design. The paper discusses the parabolic arch, the catenary arch, and the constant stress arch. The optimum heights, which produce the minimum amount of material, are solved. The importance of form- finding design is emphasized.

The optimum heights are solved mathematically. In addition, a non-linear iteration procedure, based on vector algebra solution, is used in finding the optimum shape of the moment-less arch. The applications of traditional graphic static and the usage of vector algebra are useful practical tools for designers, especially during the preliminary design stages.

The maximum theoretical arch spans are remarkably long. At a stress level of 500 MPa, the ultimate span of a steel arch is 19 635 m. The optimal heights of the arches are bigger than traditionally expected. For example, for a parabolic arch, the optimum span to height relation l/h is 2.309. It can also be mentioned that the optimum height ratio of 2.962, derived for the catenary arch, has so far been an unknown figure for designers.

The theoretical maximal dimensions resolved in the paper indicate that the dimensions of arches can be increased further.
Efficient Post-Tensioned Slab Design Informed Through Topology Optimization
Authors: Sarkisian Mark , Long Eric , Beghini Alessandro , Garai Rupa , Shook David , Diaz Abel , Henoch Ricardo
Published: March 2021

Post-tensioned (PT) flat-plate gravity framing systems are highly efficient and reduce embodied carbon, improve construction speed, and reduce seismic mass when compared to conventional reinforced concrete framing systems. While efficiency is especially apparent in multi-span applications with regular orthogonal support arrangement, single-span or irregular support applications are common in high-rise buildings.

A novel approach to determining PT tendon arrangements has been applied to several buildings informed by topology optimization results. Topology optimization is an optimization method which determines optimal load paths in a finite element continuum. By orienting PT tendons along the optimal load paths suggested by topology optimization, several applications have consistently demonstrated reductions in post-tensioned tendon quantities while the amount of mild reinforcement is maintained unchanged. Many of the observed tendon layouts do not follow traditional uniform/banded layouts. Also, the deflection performance is enhanced since tendons are placed in a manner consistent with the load demands.

This new design method has been applied to three buildings and coordinated with construction teams. This presentation will discuss the design procedure which was developed through construction documents as applied to three buildings.
Sustainability-driven structural design using artificial intelligence
Authors: Mathern Alexandre , Ek Kristine , Rempling Rasmus
Published: March 2021

The construction industry is responsible for a large share of the global environmental impact. The need for addressing sustainability and increased competition calls for the development of innovative design methods that include sustainability in a transparent way. The aim of this work is to propose a framework to use machine learning and artificial intelligence (AI) for structural design optimization based on sustainability and buildability criteria. AI opens up new possibilities to optimize and assess structures early in the planning and design stages. In that way, it is possible to decrease the negative and enhance the positive environmental, economic and social impacts and create a more time‐ and cost‐effective design process. The work is meant to serve as a first step toward the development of AI‐based methods in the construction industry, which can bring digitalization in the construction industry to a new level and create new services and business models.
Reliability Analysis of Underground Structures Using Metamodels and FORM
Authors: Wang Qian , Ji Jun
Published: March 2021

An engineering reliability analysis method of underground structures using metamodels and a first-order reliability method (FORM) was studied. Surrogate models, or metamodels are approximate models that can be constructed to replace implicit response functions that involve finite element analyses. The radial basis functions (RBFs) are suitable for creating metamodels for general linear or nonlinear responses and they are locally and globally adaptive. After a performance function was replaced by an augmented RBF metamodel, an alternative FORM was applied. The method was tested using mathematical functions and applied to a tunnel engineering example. Different numbers of samples were tested and reliability analyses were performed. The failure probabilities and reliability indices were found to have a good accuracy. The proposed method combining RBFs and FORM is useful for practical engineering problems involving expensive response simulations.
Steel Orthotropic Deck Systems – Ideal Solution for 200 Year Bridges
Authors: Roy Sougata
Published: March 2021

Time dependent deterioration of bridge decks, directly subjected to: repeated abrasive loading from passing vehicles; the elements of weather; and winter maintenance agents, is the key challenge to achieving a 200 Year Bridge Design. In-service performance and laboratory tests over the past several decades have demonstrated that the steel orthotropic deck is the only system likely to accomplish this goal. Nevertheless, implementation of this deck system has been mostly limited to long span signature bridges, movable bridges, and temporary structures. The primary impediments to more wider application of orthotropic decks are lack of robust standards, increased efforts required for advanced analysis and design, relatively high initial cost owing to intensive fabrication, and most importantly due to concerns regarding higher possibility of in-service fatigue cracking from a large number of welded connections. This manuscript presents a standard deck design, developed based on the lessons learnt from a number of orthotropic bridge decks implemented in the greater New York region and the knowledgebase accumulated over the years from research and service performance of this deck around the world, which can be widely implemented as a prefabricated modular system towards durable, sustainable and life-cycle cost-effective design of the 200 Year Bridge.
Research on Effective Temperature of T‐Shaped Girder for Jointless Bridges in China
Authors: Lin Jianhui , Briseghella Bruno , Xue Junqing , Tabatabai Habib , Chen Baochun , Huang Fuyun
Published: March 2021

Jointless bridge has been proved to be a cost‐effective alternative to bridges with conventional joints. The longitudinal thermal movement of the superstructure is usually considered as the key parameter for designing jointless bridges. The average temperature of cross‐sections can be considered as the effective temperature of the superstructure. In order to accurately estimate the longitudinal thermal movement of the superstructure, the average temperature of cross‐sections should be obtained. The temperature distribution on cross‐sections of T‐shaped girders in one jointless bridge was monitored. A finite element model was implemented using the MIDAS‐FEA software, which is verified based on the monitoring results. Considering the historical extreme temperature conditions and the results of the parametric study, the peak values of the average temperature of T‐shaped girder cross‐sections for jointless bridges in different climate regions in China are recommended. Finally, the simplified formulae to predict the effective temperatures of T‐shaped girder cross‐sections for jointless bridges are proposed based on the correlation analysis.
Research on the anti-cracking ability of large composite girder cable- stayed bridge
Authors: Huang Yuhao , Chao Liu , Dong Xu
Published: March 2021

Recently, composite girder cable-stayed bridge is widely used in the world. Since the existing design method takes less focus on the principal stress of the top and bottom slab, the cracking problem of the concrete bridge deck has not been solved perfectly yet. Based on the spatial grid model, this paper takes Guan He Bridge in Jiangsu province as an example to analyze this kind of structure. Monitoring the principal stress of the concrete bridge deck is proposed for the first time to study the effect of diagonal crack. The principal stress of the concrete deck in the middle span, the quartile span, one-eighth of the span, the side span, the bridge tower, and the auxiliary pier are observed respectively. Comparing the theoretical values with the measured value, the results show that the actual stress state of the whole concrete bridge deck during construction is in accordance with the theoretical calculation. For composite girder cable-stayed bridge, the concrete bridge deck is prone to crack, so it is very significant to control the quality in the construction stage, which can provide a guarantee for the safety and durability of the structure.
A Simplified Method to Predict the Full-Range Moment-Rotation Behavior of Bolted Endplate Connections
Authors: He Shubin , Zhao Xianzhong
Published: March 2021

The behavior of beam-to-column bolted connections can be predicted by means of the component method included in the Eurocode 3.Essentially, the method consist of three basic steps: accurately identification of the active components (representing a specific part of a joint that makes a contribution to joint behavior) for a given joint; then, described the load-deformation response of the active components; finally, assemble all components into a mechanical model made up of springs and rigid links to derive the joint behavior. The current research of component method could predict the joint behavior up to complete failure. However, the proposed method may rather cumbersome. In this paper, a simplified method to predict the full-range moment-rotation relationship of bolted endplate connections is proposed. The obtained expressions can be applied for tracing connection nonlinear behavior up to complete failure in a step-by-step procedure. The moment-rotation curves obtained by the proposed method are compared with published connection test result. The proposed method was demonstrated to be able to describe the full-range moment-rotation behavior of bolted endplate connections with relative accuracy.
Predicting project performance using pre-construction performance indicators–a case study evaluation
Authors: Ekström Daniel , Rempling Rasmus , Claeson-Jonsson Christina
Published: March 2021

Predicting the outcome of a construction project largely relies on estimated targets of time and cost. Still, hitting the targets does not mean that the project is a success on all performance levels. Here, a retrospective case study was undertaken on a construction project identified as a successful project by the partners involved. The purpose of the study was to validate conceptual design indicators of a high-performance construction project as reported in the literature, by answering the following research questions: “What characterizes the dialogue between the different disciplines; (2) What is the dialogue about; and (3) When in the process do questions arise?” Findings indicate that the interprofessional dialogue within the project team was well established. The paper introduces a discussion that the dialogue benefited from the collaborative project environment as well as the early design intent. Further, the study also suggests that the interprofessional dialogue supported a sound project team development.
Strengthening of a City Center Tunnel with Concrete Screw Anchors under Special Boundary Conditions
Authors: Lechner Johannes , Feix Jürgen , Hertle Robert
Published: March 2021

The Altstadtring-Tunnel is one of the essential east-west traffic routes in the city center of Munich and was constructed in the late 1960s. Segment 34 of the tunnel was built directly underneath the existing Prince-Carl- Palais, a historic building from 1804. Therefore 15 pre-stressed concrete girders with an effective depth of

3.5 m and a maximum span of up to 30 m were built which now form the tunnel roof slab. These girders were pre-stressed with steel nowadays well known for stress corrosion cracking. A recalculation of the slab showed that no ductile failure can be guaranteed in case of a progressive rupture of the tendons. Therefore, a concept for strengthening the slab was developed using concrete screw anchors as post installed bending and shear reinforcement. The concrete screw anchors are normally installed as anchoring elements in cracked and non- cracked concrete and are available with diameters up to 22 mm. Developing this concept further, it is straight forward to use these anchoring elements as post-installed reinforcement in existing concrete structures. This new strengthening system was developed at the University of Innsbruck in the last few years and can fulfill the special requirements of this project, such as installation of the strengthening system from underneath the tunnel slab during ongoing use of the structure. High strength steel with diameters of up to 63.5 mm will be used as post-installed bending reinforcement covered with a new shotcrete layer on the underside of the tunnel slab. In total 59.3 tons of new flexural reinforcement and 7199 concrete screws for strengthening the shear capacity of the girders will be used to ensure a ductile failure of the tunnel slab. The on-site work started in March 2019 and is expected to take two years to complete.