bluuebunny/crossref_metadata_2025 huggingface dataset:
Konsep Dasar Administrasi Pendidik dan Tenaga Kependidikan
Authors: WULANDARI VISTRI , Afriansyah Hade
Published: June 2019

this article describe about administration of educators and education staff
administrasi layanan khusus
Authors: Khodizah Siti , Afriansyah Hade
Published: June 2019

This article describe about special service for students. As a special service of learners includes guidance and counseling services, library services, a cafeteria service / kafetarian, health services, transformation services schools, service hostel,, laboratory services, etc
Administrasi Kurikulum
Authors: Kurniawan Randiju , Afriansyah Hade
Published: June 2019

Administration curriculum consists of two syllables, administration and curriculum. Administration can be interpreted as an activity or business to help, serve, direct, or regulate all activities in achieving a goal. While the curriculum is a set of planning and media that are used as references by educational institutions in realizing educational goals. The curriculum administration process is divided into four stages, namely: planning, implementation, supervision, and evaluation.
RENDAHNYA MORAL DAN KEPALSUAN ETIKA DALAM BERDEMOKRASI
Authors: setiawan Arlian tega
Published: July 2019

Tahun 2019 ini telah diadakan pemilihan serentak yaitu pemilihan Legislatif (Pileg) dan pemilihan Presiden dan wakil presiden yang dilaksanakan pada tanggal 17 april 2019. Pada pemilihan ini pemilihan presiden dan wakil presidenlah yang sangat menyita perhatian publik mulai dari awal pendaftaran bakal calon Presiden dan Wakil presiden Indonesia hingga penetapan pasangan Presiden dan Wakil presiden terpilih pada tanggal 6 Oktober 2019 mendatang. Masing-masing pasangan calon sama-sama melakukan deklarasi pada 9 Agustus 2018, pendaftaran pada 10 Agustus 1018 dan peresmian pada 20 September 2018, dimana ada dua calon yang mencalonkan diri sebagai calon Presiden dan Wakil presiden Indonesia yaitu satu pasangan calon presiden Joko widodo-Ma’ruf amin dan kedua pasangan Prabowo subianto-Sandiaga Uno. masing-masing capres dan cawapres mempunyai tim aliansi, dari tim nomor urut 01 pasangan Jokowi-Amin yaitu Koalisi Indonesia Kerja. Sedangkan dari tim nomor urut 02 pasangan Prabowo-Sandi yaitu Koalisi Indonesia Adil Makmur.
Implementasi Total Quality Management dalam Meningkatkan Mutu Pendidikan
Authors: arsy shofi maahiroh , Afriansyah Hade , Rusdinal
Published: June 2019

This article aims to describe how the implementation total quality management in improving education quality. Using the literature study method by looking for relevant theoretical references to sources and books, articles. based on the results of the TQM article is an activity that satisfies the customer's heart and also improves quality. There are several items contained in the Implementation of TQM in improving the quality of education, namely the vision and mission of the organization must be clear, satisfy the customers (teachers, education staff), have clear planning.
penyerangan teroris di indonesia
Authors: prayogo
Published: June 2019

Sejumlah kejadian dan tragedi yang mengancam kedaulatan Republik Indonesia pada tahun 2018 sampai 2019, salah satu aksi yang paling menyayat hati adalah kasus terorisme yang melanda negeri ini. Kasus terorisme merebak di berbagai wilayah di Indonesia dan sebagian memakan korban jiwa. Kejahatan yang mengancam hak asasi manusia ini menuai berbagai kecaman di kalangan masyarakat Indonesia maupun dunia. Tak ada satupun yang menghendaki aksi teror seperti itu melanda Negara Kesatuan Republik Indonesia (NKRI). Entah apa yang menjadi tujuan dari para oknum teroris ini, namun kejahatan semacam ini sudah seharusnya enyah dari bumi pertiwi. Di negeri ini, aksi teror menjadi rutinitas bagi para pelakunya dengan iming-iming surga. Terorisme bahkan dijadikan sebagai thoriqoh jihad, sebagai titik tolak kehidupan masa depan yang lebih baik. Tak heran, pelaku terorisme semakin banyak di negeri ini.
Challenges in Implementing the Ecosystem Approach: Lessons Learned
Authors: Langlet David , Rayfuse Rosemary
Published: June 2019

In this, concluding chapter, we draw on the various perspectives and experiencesdiscussed in the preceding chapters, with a view to identifying commonthemes and challenges as well as distinctive features of the understandingand operationalization of the ecosystem approach to ocean management inthe EU and beyond. We highlight important insights and identify remainingchallenges to the effective operationalization of the approach, both in termsof improving its practical implementation, and in terms of further researchneeds.
The percentile bootstrap: a primer with step-by-step instructions in R
Authors: Rousselet Guillaume A , Pernet Cyril R , Wilcox Rand R.
Published: June 2019

The percentile bootstrap is the Swiss Army Knife of statistics: it is a non-parametric method based on data-driven simulations. It can be applied to many statistical problems, as a substitute to standard parametric approaches, or in situations where parametric methods do not exist. In this tutorial, we cover R code to implement the percentile bootstrap in a few situations: one-sample estimation and the comparison of two independent groups for measures of central tendency (means and trimmed means) and spread. For each example, we explain how to derive a bootstrap distribution, and how to get a confidence interval and a p value from that distribution. We also demonstrate how to run a simulation to assess the behaviour of the bootstrap. In some situations, the bootstrap performs poorly, such as when making inferences about the mean. But for other purposes, it is the only known method that works well over a broad range of situations, such as when comparing medians and there are tied (duplicated) values. More broadly, combining the percentile bootstrap with robust estimators, i.e. estimators that are not overly sensitive to outliers, the bootstrap can help users gain a deeper understanding of their data, relative to conventional methods.
Fake collaborations: Interdisciplinary science can undermine research integrity
Authors: Hessels Roy S , Kingstone Alan
Published: June 2019

Funding agencies and academic institutions are increasing their emphasis on interdisciplinary collaborations as an important scientific method for answering complex societal questions. We argue that participating in these initiatives can make one party to behaviors that risk the integrity of one's research. We suggest steps that researchers, institutions, and funding agencies can take to ameliorate this situation.
Fracture Resistance of Aluminum Alloys
Authors: Kaufman J. Gilbert
Published: June 2019

This article discusses the concepts underlying linear elastic fracture mechanics and elastic-plastic fracture mechanics as well as their importance in characterizing the fracture behavior of the high-strength aluminum alloys. It describes the three methods used for analyzing elastic-plastic fracture, namely R-curve concept, J-integral concept, and crack tip opening displacement method. The article considers the primary measures used to assess the toughness of aluminum alloy castings and wrought alloys: notch toughness, tear resistance, and plane-strain fracture toughness.
Investigating Students’ Philosophic-Mindedness through Their Producing Philosophical Questions: Hindering and Facilitating Factors
Authors: Shahini Gholamhossein , Zahra Nouri
Published: July 2019

Given the crucial role philosophical thinking can serve in enhancing the cultivation of mind, it seems urgent that prior to nurturing such thinking its status be investigated within individuals in various educational contexts. Moreover, since philosophy is characteristically a question-raising discipline, one way one’s philosophic-mindedness can be investigated is to see if s/he is capable to cast a philosophical look at a text and in turn pose philosophical questions on it.  Hence, the present paper aims at a) exploring the participants’ ability in making philosophical questions and b) finding out factors leading to producing and not-producing such questions. To this end, through accessible sampling, a group of 50 BA sophomore and junior students in an EFL context attended this study. The participants were asked to read two simple short passages and make any type of question(s) (text-based, beyond the text, etc.) that would occur to their mind in essay-type format. Then, using purposeful sampling, 17 out of 50 were selected for an open interview. Based on Cam’s (2006) question framework, the findings revealed that the majority of the participants were not able to produce philosophical questions and the factors leading to generating non-philosophical questions were memorization-based system, teacher-centered curriculum, non-liberal atmosphere of classes, unsuitable family environment, weak performance of mass media, irrational social customs, etc. On the contrary, the factors giving rise to producing philosophical questions were innate disposition towards thinking, introversion, appropriate family environment, proper nurturing conditions, adequate method of teaching, etc. Furthermore, the technique of question-making and question-analysis together with a question framework are introduced to be employed for realizing philosophic-mindedness. Finally, Philosophy-based Language Teaching is suggested as an approach for removing the obstacles to philosophical thinking.
Bio-Priming Effect Of Three Phosphate Solubilizing Fungi On Seed Germination And Seedling Development Of Faba Bean (Vicia Faba)
Authors: Gizaw Birhanu
Published: June 2019

Germination and seedling establishment are critical stages in the plant life cycle. The aim of this study was to evaluate the effect of phosphate solubilizing fungi on seed germination and seedling growth of Faba bean. Phosphorus is an essential macronutrient next to nitrogen required by plant for vital biosynthesis. Factorial experiment based a completely randomized block design with three replications were used. This experiment had two factors, the first factor with one level of bean cultivar. In the second factor, three levels of phosphate solubilizer fungi were applied as treatments. Single inoculation of each strain was done. The results revealed that seed treated withTrichosporon beigelii B, C. albidus var aurius, Phichia norvegensis and Control showed 780.43, 749.93, 618.23, 500.73 seedling vigor index respectively and improved germination rates up to 91%. The highest mean growth of plumule length (5.6 cm) and radicle length (3.42) within 15 days growth recorded by Trichosporon beigelii B, and C.albidus var aurius respectively. The results of this study suggest that T. begili and C. albidus var aurius have the potential to increase the growth and development of plumul size, radicle length, and fresh biomass of Faba bean seed. Bio-priming is a promising technique for vital application of using beneficial microbes to promote seed germination and seedling development through phytase enzyme production, phyto hormone production, phosphate solubilization and other plant growth promoting properties as well as bio control activities.
Qu’est-ce qui motive [ou non] les étudiants en médecine à choisir comme spécialité la médecine d’urgence ?
Authors: Pelaccia T. , Roy P.-M. , Douillet D. , Bilbault P. , Abbiati M.
Published: June 2019

Objectif : Le diplôme d’études spécialisées de médecine d’urgence a été créé en France à la rentrée universitaire 2017. En 2018, 21 postes ont été laissés vacants aux épreuves classantes nationales (ECN). Cette étude avait pour but d’identifier les raisons pour lesquelles les étudiants souhaitent ou non choisir la médecine d’urgence, ainsi que leur motivation pour cette spécialité.

Matériel et méthodes : Nous avons mené une étude observationnelle prospective et monocentrique. Tous les étudiants du premier et du deuxième cycle de la faculté de médecine de Strasbourg ont été sollicités entre 2017 et en 2018. Des questionnaires ont été autoadministrés en présentiel ou en ligne afin de recueillir le type de spécialisation envisagé, le degré de motivation des répondants pour devenir médecin urgentiste et l’influence de différents facteurs motivationnels sur leur volonté ou non de choisir la médecine d’urgence aux ECN.

Résultats : Sept pour cent des étudiants de première année de médecine souhaitent choisir la médecine d’urgence comme spécialité. Ils ne sont plus qu’un pour cent en sixième année. Le mode de vie est considéré de façon croissante entre le début et la fin des études prégraduées comme particulièrement dissuasif. La variété des pathologies rencontrées et le défi intellectuel sont des facteurs attractifs et stables.

Conclusion : L’attractivité de la médecine d’urgence pourrait être renforcée en communiquant auprès des étudiants en médecine de deuxième cycle sur les facteurs sources de motivation et en poursuivant la réflexion visant à améliorer la qualité de vie des médecins urgentistes.
Patients présentant un syndrome coronarien aigu avec sus-décalage du segment ST admis en structure d’urgence après régulation par un Centre 15
Authors: Cachera D. , Balen F. , Charpentier S.
Published: June 2019

Introduction : La cardiopathie ischémique est une des principales causes de mortalité en Europe. Cette mortalité importante est l’apanage particulier des syndromes coronariens avec élévation du segment ST (SCA ST+). Si la prise en charge préhospitalière de ces patients (de l’appel à la table de coronarographie) est sous la responsabilité des Samu, certains patients échappent à la filière malgré un appel au Centre 15. Notre objectif était de décrire ces patients porteurs d’un SCA ST+, admis en structure d’urgence (SU) après régulation par un Centre 15.

Méthode : Il s’agit d’une étude observationnelle de cohorte rétrospective incluant tous les patients admis en SU du CHU de Toulouse du 1er avril 2015 au 31 janvier 2017 avec un diagnostic final de SCA ST+.

Résultats : Sur les 139 patients qui ont été admis en SU pour SCA ST+, 96 (69 %) avaient contacté le Centre 15. Les dossiers de 89 patients ont été analysés. On retrouve une importante proportion de patientes de plus de 75 ans, qui représentent un quart de la population. Seulement 30 patients (34 %) présentaient une douleur typique.

Discussion : Notre étude retrouve un taux de douleurs atypiques et une proportion de femmes âgées plus importante que la littérature portant sur la description des patients porteurs de SCA ST+. Ces atypies de présentation peuvent expliquer la difficulté à réguler et orienter ces patients.
Synbiotics and Treatment of Asthma: A Double-Blinded, Randomized, Placebo-Controlled Clinical Trial
Authors: Hassanzad Maryam , Maleki Mostashari Keyvan , Ghaffaripour Hosseinali , Emami Habib , Rahimi limouei Samane , Velayati Ali Akbar
Published: June 2019

Background: We examined the efficiency and safety of a specific synbiotic compound, brand name Kidilact®, in the treatment of asthma in children 12 years of age or younger. Materials and Methods: This double-blinded, randomized, placebo-controlled clinical trial was conducted in Tehran, Iran, from May 22, 2016, to May 21, 2017. One hundred children, 12 years of age or younger, who suffered from mild to moderate asthma were recruited in this study. The subjects were randomly divided into two groups; the experimental group received a sachet of Kidilact®, and the control group received a sachet of placebo once a day for six months. Both groups were compared in terms of the frequency of asthma attacks that were severe enough to require administration of fast-acting medications, the number of outpatient visits for asthma-related problems, and the frequency of hospitalization due to exacerbated symptoms of asthma. Results: There were fewer complaints of drug-induced side effects, e.g., vomiting, headache, stomachache, and diarrhea, exacerbated cough, and constipation in the experimental group than in the control group. Overall, a significantly greater number of participants in the experimental group were satisfied with the therapeutic intervention than those in the control group, as verified by the participants and their parents/guardians self-report. There was no significant difference between both groups in the frequency of asthma attacks and hospitalization due to exacerbated symptoms of asthma. The only significant difference between both groups was the count of outpatient visits. While the control group made 55 outpatient visits to the hospital, participants in the experimental group visited the hospital only 19 times (P=0.001). Conclusion: Results of our study indicates that synbiotic compound Kidilact® generally alleviates the symptoms of asthma in children of 12 years of age or younger, resulting in less frequent outpatient visits to the hospital due to asthma-related problems while rarely causing any side effects. Due to ease of use, the rarity of side effects, and their indirect positive effects on quality of life of asthmatic patients, we recommend that synbiotics be incorporated in regular treatment and management of children with asthma. [GMJ.2019;8:e1350]
Clinical outcome after decompression of intraneural peroneal ganglion cyst and its morphologic correlation to postoperative nerve ultrasound
Authors: Knoll Andreas , Pal’a Andrej , Pedro Maria-Teresa , Bäzner Ute , Schneider Max , König Ralph W. , Wirtz Christian Rainer , Friedrich Sarah , Pauly Markus , Antoniadis Gregor
Published: June 2019

OBJECTIVE

Intraneural ganglion cysts are rare and benign mucinous lesions that affect peripheral nerves, most frequently the common peroneal nerve (CPN). The precise pathophysiological mechanisms of intraneural ganglion cyst development remain unclear. A well-established theory suggests the spread of mucinous fluid along the articular branch of the peroneal nerve as the underlying mechanism. Clinical outcome following decompression of intraneural ganglion cysts has been demonstrated to be excellent. The aim of this study was to evaluate the correlation between clinical outcome and ultrasound-detected morphological nerve features following decompression of intraneural ganglion cysts of the CPN.

METHODS

Data were retrospectively analyzed from 20 patients who underwent common peroneal nerve ganglion cyst decompression surgery at the Universität Ulm/Günzburg Neurosurgery Department between October 2003 and October 2017. Postoperative clinical outcome was evaluated by assessment of the muscular strength of the anterior tibial muscle, the extensor hallucis longus muscle, and the peroneus muscle according to the Medical Research Council grading system. Hypesthesia was measured by sensation testing. In all patients, postoperative morphological assessment of the peroneal nerve was conducted between October 2016 and October 2017 using the iU22 Philips Medical ultrasound system at the last routine follow-up appointment. Finally, the correlations between morphological changes in nerve ultrasound and postoperative clinical outcomes were evaluated.

RESULTS

During the postoperative ultrasound scan an intraneural hypoechogenic ring structure located at the medial side of the peroneal nerve was detected in 15 (75%) of 20 patients, 14 of whom demonstrated an improvement in motor function. A regular intraneural fasicular structure was identified in 3 patients (15%), who also reported recovery. In 1 patient, a recurrent cyst was detected, and 1 patient showed intraneural fibrosis for which recovery did not occur in the year following the procedure. Two patients (10%) developed neuropathic pain that could not be explained by nerve ultrasound findings.

CONCLUSIONS

The results of this study demonstrate significant recovery from preoperative weakness after decompression of intraneural ganglion cysts of the CPN. A favorable clinical outcome was highly correlated with an intraneural hypoechogenic ring-shaped structure on the medial side of the CPN identified during a follow-up postoperative ultrasound scan. These study results indicate the potential benefit of ultrasound scanning as a prognostic tool following decompression procedures for intraneural ganglion cysts of the CPN.
Choosing the target wisely: partial tibial nerve transfer to extensor digitorum motor branches with simultaneous posterior tibial tendon transfer. Could this be a way to improve functional outcome and gait biomechanics?
Authors: Gatskiy Alexander A. , Tretyak Ihor B. , Tretiakova Albina I. , Tsymbaliuk Yaroslav V.
Published: June 2019

OBJECTIVE

The objective of this study was clinical assessment of the reduction of pathological motor phenomena with the recovery of long toe extensors, and evaluation of functional outcome with simultaneous nerve and tendon transfer in cases of common peroneal nerve (CPN) injuries.

METHODS

Seven male patients (mean age 26.4 years) received a partial tibial nerve transfer to the extensor hallucis longus muscle (MEHL) and extensor digitorum longus muscle (MEDL) motor branches, after a mean of 2.7 months following a traction-type injury to the CPN. Tibialis posterior muscle (MTP) tendon transfer through the interosseous route was performed on the same day. The follow-up period included a clinical neurological examination, a modified Stanmore System questionnaire (MSSQ), electromyographic examination of the interference pattern, and a video-based analysis of the gait biomechanics in the 3rd and 12th months. Video analysis of the gait investigated the presence or reduction of “stair-climbing maneuver” (SCM), foot slap (FS), and foot stability during the gait cycle.

RESULTS

The average range of active dorsiflexion in the 3rd month was 0.85°. SCM accompanied walking in 6 patients (86%). FS accompanied walking in 3 patients (43%) and 3 patients (43%) avoided FS by planting the entire foot on the ground. All patients required orthopedic support (shoe inserts) to compensate for mediolateral foot instability. The average MSSQ score was 80.4 points. The average duration for the effective recovery of function (≥ 4 points on the Medical Research Council grading system) of long toe extensors was 11.2 months. The average range of active dorsiflexion in the 12th month increased to 4.4°. A reduction of FS was observed in 5 patients (71%). Excessive foot eversion was reduced in 4 patients (57%). Another 3 patients (43%) required no specific orthopedic shoe inserts. Reduction of pathological motor phenomena with recovery of the long toe extensors resulted in an increase of functional outcome. The average MSSQ score after 12 months was 92.4 points.

CONCLUSIONS

Partial tibial nerve transfer to the motor branches of the extensor hallucis longus and the long toe extensors along with the simultaneous tibialis posterior tendon transfer produce the reduction of FS and bring mediolateral stability to the foot, i.e., improved gait biomechanics. The reduction of pathological motor phenomena at the time of recovery of the long toe extensors is reflected in an increase in patients’ functional perception of the injured lower extremity during daily walking.
Development and evaluation of a patient-specific surgical simulator for endoscopic colloid cyst resection
Authors: Bodani Vivek P. , Breimer Gerben E. , Haji Faizal A. , Looi Thomas , Drake James M.
Published: June 2019

OBJECTIVE

Endoscopic resection of third-ventricle colloid cysts is technically challenging due to the limited dexterity and visualization provided by neuroendoscopic instruments. Extensive training and experience are required to master the learning curve. To improve the education of neurosurgical trainees in this procedure, a synthetic surgical simulator was developed and its realism, procedural content, and utility as a training instrument were evaluated.

METHODS

The simulator was developed based on the neuroimaging (axial noncontrast CT and T1-weighted gadolinium-enhanced MRI) of an 8-year-old patient with a colloid cyst and hydrocephalus. Image segmentation, computer-aided design, rapid prototyping (3D printing), and silicone molding techniques were used to produce models of the skull, brain, ventricles, and colloid cyst. The cyst was filled with a viscous fluid and secured to the roof of the third ventricle. The choroid plexus and intraventricular veins were also included. Twenty-four neurosurgical trainees performed a simulated colloid cyst resection using a 30° angled endoscope, neuroendoscopic instruments, and image guidance. Using a 19-item feedback survey (5-point Likert scales), participants evaluated the simulator across 5 domains: anatomy, instrument handling, procedural content, perceived realism, and confidence and comfort level.

RESULTS

Participants found the simulator’s anatomy to be highly realistic (mean 4.34 ± 0.63 [SD]) and appreciated the use of actual instruments (mean 4.38 ± 0.58). The procedural content was also rated highly (mean 4.28 ± 0.77); however, the perceived realism was rated slightly lower (mean 4.08 ± 0.63). Participants reported greater confidence in their ability to perform an endoscopic colloid cyst resection after using the simulator (mean 4.45 ± 0.68). Twenty-three participants (95.8%) indicated that they would use the simulator for additional training. Recommendations were made to develop complex case scenarios for experienced trainees (normal-sized ventricles, choroid plexus adherent to cyst wall, bleeding scenarios) and incorporate advanced instrumentation such as side-cutting aspiration devices.

CONCLUSIONS

A patient-specific synthetic surgical simulator for training residents and fellows in endoscopic colloid cyst resection was successfully developed. The simulator’s anatomy, instrument handling, and procedural content were found to be realistic. The simulator may serve as a valuable educational tool to learn the critical steps of endoscopic colloid cyst resection, develop a detailed understanding of intraventricular anatomy, and gain proficiency with bimanual neuroendoscopic techniques.
Epidermal growth factor receptor mutations: association with favorable local tumor control following Gamma Knife radiosurgery in patients with non–small cell lung cancer and brain metastases
Authors: Lee Cheng-Chia , Hsu Sanford P. C. , Lin Chung-Jung , Wu Hsiu-Mei , Chen Yu-Wei , Luo Yung-Hung , Chiang Chi-Lu , Hu Yong-Sin , Chung Wen-Yuh , Shiau Cheng-Ying , Guo Wan-Yuo , Hung-Chi Pan David , Yang Huai-Che
Published: June 2019

OBJECTIVE

The presence of epidermal growth factor receptor (EGFR) mutations in non–small cell lung cancer (NSCLC) has been associated with elevated radiosensitivity in vitro. However, results from clinical studies on radiosensitivity in cases of NSCLC with EGFR mutations are inconclusive. This paper presents a retrospective analysis of patients with NSCLC who underwent regular follow-up imaging after radiotherapy for brain metastases (BMs). The authors also investigated the influence of EGFR mutations on the efficacy of Gamma Knife radiosurgery (GKRS).

METHODS

This study included 264 patients (1069 BMs) who underwent GKRS treatment and for whom EGFR mutation status, demographics, performance status, and tumor characteristics were available. Radiological images were obtained at 3 months after GKRS and at 3-month intervals thereafter. Kaplan-Meier plots and Cox regression analysis were used to correlate EGFR mutation status and other clinical features with tumor control and overall survival.

RESULTS

The tumor control rates and overall 12-month survival rates were 87.8% and 65.5%, respectively. Tumor control rates in the EGFR mutant group versus the EGFR wild-type group were 90.5% versus 79.4% at 12 months and 75.0% versus 24.5% at 24 months. During the 2-year follow-up period after SRS, the intracranial response rate in the EGFR mutant group was approximately 3-fold higher than that in the wild-type group (p < 0.001). Cox regression multivariate analysis identified EGFR mutation status, extracranial metastasis, primary tumor control, and prescribed margin dose as predictors of tumor control (p = 0.004, p < 0.001, p = 0.004, and p = 0.026, respectively). Treatment with a combination of GKRS and tyrosine kinase inhibitors (TKIs) was the most important predictor of overall survival (p < 0.001).

CONCLUSIONS

The current study demonstrated that, among patients with NSCLC-BMs, EGFR mutations were independent prognostic factors of tumor control. It was also determined that a combination of GKRS and TKI had the most pronounced effect on prolonging survival after SRS. In select patient groups, treatment with SRS in conjunction with EGFR-TKIs provided effective tumor control for NSCLC-BMs.
An experimental study on flexural behavior of corroded reinforced concrete beams using electrochemical accelerated corrosion method
Authors: Tan Nguyen Ngoc , Nguyen Nguyen Dang
Published: July 2019

This study investigated experimental bearing capacity of corroded reinforced concrete beams. Six testing beams were made of concrete having compressive strength of 25 MPa, with the dimensions of 1200 x 80 x 120 mm. They were divided into two groups depending of tension reinforcement ratio. Of which, two beams were used as the controls, whereas the other fours ones having tension reinforcement were subjected to corrosion by the electrochemical accelerated corrosion method. After accelerated corrosion, the beams were tested under monotonic loading to investigate their performance. All the tested beams were failed in flexural failure mode corresponding to spalling of cover concrete. Test results showed that as corrosion rate in tension reinforcement increased, the lower cracking load and the displacement at the cracking load were observed. As the corrosion rate of tension reinforcement ranging from 7.5% to 8.3%, it had little effect on the peak load. As the corrosion rate increased further, approximately 10.8% and 14.1% in this study, the peak load decreased significantly. The higher the corrosion rate, the lower the displacement of corroded beams. Moreover, as corrosion rate of tension reinforcement increased the number of concrete cracks and their spacing reduced, and the width of cracks was generally larger.

Keywords: reinforced concrete beam; electrochemical accelerated corrosion; corrosion rate; load-carrying capacity; displacement; concrete cracking.

Received 08 January 2019, Revised 16 January 2019, Accepted 17 January 2019
Fatigue analysis of jacket support structure for offshore wind turbines
Authors: Vuong Nguyen Van , Quan Mai Hong
Published: July 2019

In the past few decades and up to now, the fossil energy has exerted tremendous impacts on human environments and gives rise to greenhouse effects while the wind power, especially in offshore region, is an attractive renewable energy resource. For offshore fixed wind turbine, stronger foundation like jacket structure has a good applicability for deeper water depth. Once water depth increases, dynamic responses of offshore wind turbine (OWT) support structures become an important issue. The primary factor will be the total height of support structure increases when wind turbine is installed at offshore locations with deeper water depth, in other words the fatigue life of each components of support structure decrease. The other one will experience more wind forces due to its large blades, apart from wave, current forces, when makes a comparison with offshore oil and gas platforms. Summing up two above reasons, fatigue analysis, in this research, is a crucial aspect for design of offshore wind turbine structures which are subjected to time series wind, wave loads and carried out by aiding of SACS software for model simulation (P-M rules and S-N curves) and Matlab code. Results show that the fatigue life of OWT is decreased accordingly by increasing the wind speed acting on the blades, especially with the simultaneous interaction between wind and wind-induced wave. Hence, this should be considered in wind turbine design.

Keywords: offshore wind turbine; Jacket structure; fatigue analysis; P-M rules; S-N curves.

Received 01 October 2018, Revised 19 November 2018, Accepted 31 January 2019
Sustainabilization of Hanoi mobility approached from new residential areas: Will it be a city without motorbike?
Authors: Tung Tran Minh
Published: July 2019

Due to the policy of the Doi moi in Vietnam started in 1986, Hanoi has undergone many important changes. Currently, Hanoi's traffic is characterized by seemingly continuous motorcycle flows - a representative of high personal mobility in the context of rising incomes. Congestion, dust, pollution, insecurity, overload, etc., they are important keywords to describe Hanoi's urban traffic. Hanoi has put in place a number of policies to improve the transportation system. In 2017, in Hanoi's new mobility improvement project, there is a regulation on motorcycles: “The municipality will zone by limiting the activities of motorcycles according to the infrastructure and the service capacity of the public transportation system to stop motorcycle activities in the central districts in 2030” that becomes controversial. This article, based on the results of surveys assessing the level of satisfaction and desires of people about traffic at the KDTMs of Hanoi, analyzes the differences between the wishes of the municipality and the practices of Hanoi, through habits, modes of mobility of KDTM residents - the new residential areas of Hanoi that bring a different atmosphere of habitat compared to existing neighborhoods, by changing the mode of (re)making of the city. How will the traffic of KDTM residents be affected by this decision as well as how KDTMs will participate in the sustainable transportation of Hanoi?. It is the KDTMs with their “novelties” that will have to become pioneers creating opportunities of the changing of Hanoi traffic.

Keywords: Hanoi; sustainable mobility; efficient transportation; motorcycle; KDTM (new residential area).

Received 08 December 2018, Revised 30 January 2019, Accepted 30 January 2019
Optimal feedback control for alpha-Leray model and for alpha-Navier-Stokes model
Authors: Zvyagin А. V.
Published: June 2019

The existence of optimal feedback control for the alpha-Leray model and for the alpha-Navier-Stokes model are proved. The existence of an optimal solution yielding the minimum of a specified bounded lower semicontinuous quality functional is obtained. To establish the existence of an optimal solution, the topological approximation method for studying problems of hydrodynamics is used.
Operator cosine-functions and boundary value problems
Authors: Kostin V. A. , Kostin A. V. , Kostin D. V.
Published: June 2019

For the first time, the theory of strongly continuous operator cosines of functions (COF) is applied to the study of the correct solvability of boundary value problems for second-order linear differential equations in Banach space (elliptic case). Usually in COF terms the correct solvability of the Cauchy problem (hyperbolic case) is formulated. The note specifies the conditions on the order of COF growth under which the Dirichlet boundary value problem is correct on the finite interval. The integral representation of the solution and its exact estimation are given.
The results of the competitiveness analysis of photovoltaic microgeneration systems in the Russian Federation
Authors: Gabderakhmanova T. S. , Popel O. S.
Published: June 2019

The results of the economic feasibility assessment of photovoltaic (PV) microgeneration systems by the criterion of the cost of energy are presented. The assessment is based on dynamic modelling of three different configurations of grid-connected PV systems - without energy storage, with electrical energy storage and with thermal energy storage - performed for weather and electricity tariff conditions of several prospective Russian regions. Government support measures and regulatory standards currently developing in Russia for microgeneration technologies are taken into account. It is shown that under certain conditions PV microgeneration technologies could be economically feasible in some energy isolated areas and non-pricing zones of the wholesale electricity and capacity market of Russia, particularly in the Sakha Republic, whereas in pricing zones - couldn’t for any of the considered system configurations.
Sedimentary-migration of the magmatic hypothesis for the formation of oil
Authors: Skvortsov V. A.
Published: June 2019

As a result of physical and chemical modeling of hydrocarbon formation conditions at the Ereminsko-Chonsky oil cluster (Leno-Tungusskoy oil and gas province), it was found that at the stage of sedimentogenesis at (T = 35 °C, P = 0.1 MPa) methane and organic matter accumulate at the bottom of the reservoir. With diagenesis (T = 60 °C and P = 5-10 MPa) at a depth of 60-100 m, films and oil droplets are observed in the formation of source formations in rocks, pentane C5H12 appears from liquid hydrocarbons. At the stage of catagenesis at a depth of 250 C6H14 hexene is formed, and at 2000 m - C7H16 heptene, at 3100 m - octane C8H12 and at 3800 m (at T = 90 °C and P = 110 MPa) - nonane C9H20. During the period of apocatagenesis and metamorphism (at T = 105 °C and P = 450 MPa), C10H22 dodecane is formed at a depth of 13-15 km, and C11H24 undecane is formed at T - 200 °C. When the temperature rises to 250 °C and the pressure reaches 490 MPa, at a depth of about 15 km, a large group of liquid hydrocarbons from dodecane C12H26 to pentadecan C15H32 and solids from hexadecan C16H34 to octadecane C18H38, as well as other groups, form in the basement rocks. When the pressure becomes 850 MPa, isoprenoids are observed at a depth of 25 km: from C19H40 to nonadecane to C24H50 to tetracosane, etc. Based on the simulation, it becomes obvious that it is not possible to explain the conditions for the formation of hydrocarbons in the range up to 25 km using only one of the hypotheses biogenic or abiogenic and a new sedimentary-migration-magmatic hypothesis of oil formation is proposed. Its essence is as follows: to a depth of 3800-4000 m, the source of hydrocarbons is methane, which accumulates at the bottom of water bodies, and organic matter of rocks, and at a depth of 13-15 and 25 km - mantle deep methane.
Paleomagnetism of Middle Paleozoic bazites Southeast board of the Vilyui paleorift
Authors: Konstantinov K. M. , Tomshin M. D. , Konstantinov I. K. , Yakovlev A. A.
Published: June 2019

Formation of eastern frontier of the Siberian craton is bound to the riftogenny processes, which split the continent at the end of the Middle Paleozoic. The paleomagnetic data obtained on middle Paleozoic kimberlites and bazites from a zone of dynamic influence of the Vilyui paleorift indicate a turn of the Aldan terreyn rather Angaro-Anabar clockwise in the post-late Devonian time. The corner of a turn of terreyn gradually increases in east direction and reaches 22° for east flank of the Charo-Sinsk dyke belt.
Randomizes hamiltonian mechanics
Authors: Orlov Yu. N. , Sakbaev V. Zh. , Smolyanov O. G.
Published: June 2019

Randomized Hamiltonian mechanics is the Hamiltonian mechanics which is determined by a time-dependent random Hamiltonian function. Corresponding Hamiltonian system is called random Hamiltonian system. The Feynman formulas for the random Hamiltonian systems are obtained. This Feynman formulas describe the solutions of Hamilton equation whose Hamiltonian is the mean value of random Hamiltonian function. The analogs of the above results is obtained for a random quantum system (which is a random infinite dimensional Hamiltonian system). This random quantum Hamiltonians are the part of Hamiltonians of open quantum system.
The orientation of the layered aluminosilicates particles with a high aspect ratio in paraffin under electric field
Authors: Kuznetsov N. M. , Bakirov A. V. , Belousov S. I. , Chvalun S. N.
Published: June 2019

The electrorheological behavior is significantly affected by the strength of the structure formed in the electric field, due to the filler particles orientation. The structural organization of the filler in electric field was studied by X-ray scattering on paraffin films. Particles of layered aluminosilicates with a high aspect ratio and various morphology such as montmorillonite and halloysite were used as fillers. The differences in the structure formation by fillers of plate and tubular shape were shown.
The influence of manganese oxide on the sintering and properties of the eutectic ceramics ZrO2-Al2O3-SiO2 system
Authors: Smirnov V. V. , Smirnov S. V. , Obolkina T. O. , Antonova O. S. , Goldberg M. A. , Barinov S. M.
Published: June 2019

The results of investigation of sintering, microstructure and phase composition of the system ZrO2-Al2O3-SiO2 with MnO admixture are shown. It was approved that the usage of MnO admixture promoted sintering temperature decrease up to 1250-1350 °C. The product obtained is characterized by a high content of tetragonal phase as well as high strength while bending.
"Diffusive" border of isotopic reservoirs of indian and pacific morb types beneath Kamchatka
Authors: Davydova M. Yu. , Martynov Yu. A.
Published: June 2019

The convergence zones of lithospheric plates in the Northwest Pacific are the boundaries of the two main isotopic domains of the Earth - the Indian and Pacific MORB types, separated be cold oceanic lithosphere. This configuration limits of their interaction by special geodynamic environments - the influence of deep plume sources or the distraction of the subducted slab and intrusion of the oceanic asthenosphere into the subcontinental mantle wedge. The latter mechanism is reconstructed in the Central Kamchatka Depression on the basis of geological, geochemical, and high-precision (double-spike) lead isotopic data. The role of the oceanic asthenosphere in magma generation in the zones of convergence of oceanic and continental lithospheres is a poorly studied but not unique phenomenon that must be considered under geodynamic reconstructions and the creation of new, more realistic models of the juvenile continental crust formation.
Structural and mineralogical features of diamond from M. V. Lomonosov deposit (Arkhangelsk province): new data and their interpretation
Authors: Kriulina G. Yu. , Vasilev E. A. , Garanin V. K.
Published: June 2019

In the deposit n.a. Y. M. Lomonosov three groups of diamond crystals were distinguished on the base of morphology, photoluminescence, infrared absorption features and the thermal history. The crystals of the first group are octahedrons with minor signs of dissolution. In the first group, crystals have a high proportion of nitrogen in the Bform and the high model temperature. The crystals of the second type is highly resorbed dodecahedroids, they has low proportion of nitrogen in B form. The third group consists of crystals with the low temperature C defects, they are cuboids and resorbed tetrahexahedroids. These patterns indicate the polygenicity of the diamond in the deposit after M.V. Lomonosov.
Experimental study of formation of chromian priderite and yimengite as products of modal mantle metasomatism
Authors: Butvina V. G. , Vorobey S. S. , Safonov O. G. , Varlamov D. A. , Bondarenko G. V. , Shapovalov Yu. B.
Published: June 2019

The article presents the data of a series of experiments on the synthesis of exotic titanates (priderite and yimengite) as a result of the reproduction of metasomatic conditions of transformation of mantle minerals (chromite, ilmenite). It was first synthesized chromian priderite not containing Ba. The experiments showed the possibility of crystallization of this mineral as a reaction product of high-chromium spinel and rutile with potassium aqueous carbonate fluid (melt) in the upper mantle. In particular, the obtained experimental data allow us to interpret the relationship between K-Cr-priderite and carbonate-silicate inclusions in chromites of Bohemian garnet peridotites. In the experimental study of the reaction of chromite and ilmenite with aqueous potassium-carbonate fluid (melt) obtained both phases of titanates (priderite and yimengite) - indicator minerals, mantle metasomatism, which directly confirms the possibility of formation of yimengite and K-Cr-priderite and other titanates, the result of mantle metasomatism of upper mantle peridotite under conditions of the highest activity of potassium.
Long-term forecast model of spring runoff on the Belaya river
Authors: Vasil’ev D. Yu. , Vodopyanov V. V. , Zayzeva G. S. , Zakirzyanov Sh. I. , Semenov V. V. , Sivokhip Zh. T. , Chibilev A. A.
Published: June 2019

This article presents the results of long-term forecasting of spring runoff in the Belaya River basin, based on the water balance model. To optimize the structure and parameters of the water balance model equations, the Levenberg-Marquardt algorithm was used to impose restrictions on the input data values. The obtained values of the equations’ coefficients were checked according to the criterion D/s adopted in the hydrometeorological service. The reliability of the predictive method used was assessed by statistical calculations of the stability of their parameters and test calculations on an independent sample. All equations obtained during the numerical experiment may be suitable to make forecasts.
Corallite crusts as a specific form of karst morpholithogenesis in cold climate
Authors: Trofimova E. V.
Published: June 2019

The background of the conditions causing the formation of corallite crusts, constituted by the fine-fibrous spherulites, is considered. The corallite crusts are the specific form of karstic relief forming in cold climate in an area of perennial cryotic rocks distribution. The scientific interpretation of corallite crusts condensation genesis, being practically absent in scientific literature, is given.
PUTUSAN MK No. 93/PUU-X/2012 MENUJU KEPASTIAN HUKUM PENYELESAIAN SENGKETA PERBANKAN SYARI’AH
Authors: Nisa Khoirun
Published: June 2019

Kehadiran system perbankan syari’ah di Indonesia pada gilirannya menuntut adanya perubahan diberbagai bidang, selain penyempurnaan terhadap sisi kelembagaan, perlu juga memperhatikan sisi hukum sebagai landasan penyelenggaraan perbankan syari’ah untuk mengantisipasi munculnya berbagai macam permasalahan dalam operasionalisasinya. Untuk itu, kehadiran system perbankan syari’ah di Indonesia tidak hanya menuntut perubahan peraturan perundang-undangan dalam perbankan saja, akan tetapi juga berimplikasi pada peraturan perundang-undangan yang mengatur institusi yang berwenag mengadili apabila terjadi sengketa antara paha pihak. Namun lahirnya beberapa peraturan perundang-undangan ternyata menimbulkan polemik dalam penyelesaian sengketa perbankan syari’ah yaitu Undang-Undang Nomor 3 Tahun 2006 yang memberi wewenang Peradilan Agama dalam bidang ekonomi syari’ah sebagaimana tercantum dalam Pasal 49 huruf (i) ternyata masih diperdebatkan dengan hadirnya Undang-Undang Nomor 21 Tahun 2008 tentang Perbankan Syariah Pasal 55 ayat (2) dan ayat (3), sehingga dapat menimbulkan adanya persoalan konstitusional yang pada akhirnya dapat memunculkan ketidakpastian hukum bagi nasabah dan juga Unit Usaha Syari’ah dan juda dapat menimbulkan disharmony karena terjadi tumpang tindih kewenangan untuk mengadili antar badan peradilan. Untuk itu, lahirnya putusan Mahkamah Konstitusi RI Nomor : 93/ PUU-X/2012 tanggal 29 Agustus 2013 telah menjawab berbagai persoalan yang terjadi saat ini yaitu ketidakpastian hukum penyelesaian sengketa perbankan syari’ah. Sebagaimana disebutkandalam amar putusan yang menyatakan bahwa Penjelasan Pasal 55 ayat (2) bertentangan dengan Undang-Undang Dasar 1945 dan dinyatakan tidak mempunyai kekuatan hukum tetap. Oleh karena itu, dengan lahirnya putusan Mahkamah Konstitusi tersebut hak nasabah dan unit usaha syari’ah untuk mendapat kepastian hukum akan terpenuhi sebagaimana amanat Pasal 28D ayat (1) Undang-Undang Dasar 1945 dan juga memberikan wewenang absolut Pengadilan Agama untuk mengadili sengketa perbankan syari’ah sebagaimana amanat Pasal 49 huruf (i) Undang-Undang Nomor 3 Tahun 2006.