bluuebunny/crossref_metadata_2025 huggingface dataset:
Interpretasi Fault dan Horizon pada Reservoar Berdasarkan Penampang Seismik 2D dan Structure Map di Lapangan "T" Cekungan Jawa Timur Utara
Authors: Thirafi Evan Hadyan , Yatini Yatini
Published: May 2020

Negara Indonesia merupakan salah satu negara dengan pengahasil minyak bumi dan gas alam terbesar di dunia. Salah satu cekungan yang terbukti menghasilkan minyak dan gas bumi yaitu Cekungan Jawa Timur Utara, dimana formasi yang dianggap zona reservoar merupakan formasi “Z” dengan litologi berupa batugamping Globigerina. Dalam zona reservoar terdapat struktur yang menghasilkan jebakan gas pada lapangan “T” dimana penelitian ini bertujuan untuk mengetahui jenis trap dan arah penyebaran trap pada reservoar. Untuk itu dibutuhkan tiga data untuk menginterpretasi yaitu data seismik, data Logging dan data marker. Dari ketiga data tersebut, pada seismic section dilakukan picking horizon & picking fault pada top formasi. Setelah itu dibuatkan time structure map dan depth structure map. Dalam penampang seimik lintasan B – B’ berarah Utara – Selatan terdapat salah satu pola amplitudo khas yaitu wavy pararell dimana pola amplitudonya terlipat yang diinterpretasikan terjadi pada masa postdepositional tectonic. Seismic Section lintasan B – B’ lebih banyak struktur dibandingkan lintasan A – A’ sehingga penyebaran zona reservoar gas dan jebakan lebih banyak pada arah Utara – Selatan (N – S), hal ini ditandai dengan pola closure pada peta struktur waktu dan peta struktur kedalaman yang diinterpretasikan sebagai antiklin. Kata Kunci :  Antiklin, Interpretasi Seismik, Peta Struktur
Potensi Kandas Batuan Berdasarkan Metode Markland, dan Zona Rawan Longsor di Daerah Kaliwader, Kecamatan Bener, Kabupaten Purworejo, Jawa Tengah
Authors: Kusumayudha Sari Bahagiarti , Thamrin Azwar , Purwanto Heru Sigit
Published: May 2020

Daerah penelitian secara administratif berada di Kecamatan Bener, Kabupaten Purworejo, Jawa Tengah. Secara geomorfologi, bentuk lahan daerah tersebut terdiri dari Perbukitan Struktural (S1), Lembah Homoklin (S2), Dataran Alluvial (F1), Tubuh Sungai (F2), dan Dataran Limpah Banjir (F3). Lito-stratigrafi daerah penelitian mulai dari batuan tertua, disusun oleh Satuan Breksi-vulkanik Kaligesing, Satuan Lava-andesit Kaligesing, kedua satuan berumur Oligosen Akhir hingga Miosen Awal, Satuan Batugamping-pasiran Sentolo berumur Miosen Tengah – Pliosen Awal (N14 – N19), dan Satuan endapan alluvial berumur recent. Di daerah penelitian juga dijumpai intrusi andesit berumur Oligosen Akhir – Miosen Awal. Struktur geologi berupa kekar dan sesar secara umum mempunyai orientasi Timurlaut – Baratdaya termasuk reverse left slip fault, dan Baratlaut – Tenggara, merupakan right lateral slip fault. Dari hasil analisis kestabilan lereng terhadap enam lokasi lereng batu berdasarkan metode Markland, diketahui bahwa lereng Wadas berpotensi longsor tipe wedge failure dan planar slide, lereng Kaliwader 1 berpotensi longsor tipe wedge failure, lereng Kaliwader 2 berpotensi longsor tipe wedge failure, lereng Kaliwader 3 berpotensi longsor tipe wedge failure, lereng Kaliwader 4 tidak berpotensi longsor, dan lereng Ngargosari berpotensi terjadi longsoran tipe wedge failure dan tipe planar slide. Penanggulangan longsor dapat dilakukan dengan melakukan pelandaian lereng dan atau metode trap/terasering.
Logistic Broken Adaptive Ridge Procedure for Colon Cancer Data Analysis
Authors: Yin Hong , Yin Hong , Lei Liangzhen , Zhao Suyun
Published: May 2020

Background: Colon cancer is the leading cause of cancer-related deaths in the world in both man and
women. Knowing the causes and risk factors for colon cancer can help you understanding the importance
of routine screening for colon cancer, as well as learn if you are one of the people who should begin
screening at the earlier age. Due to the limitation of clinical diagnose, management and treatment outcomes,
it is of great necessity to develop effective methods for colon cancer detection and prediction especially
cDNA Microarrays and high- density oligonucleotide chips are increasingly used in cancer research.
Methods: Here we propose a novel logistic broken adaptive ridge procedure to address the problem of colon
cancer results prediction through selecting effective few variables or genes from 2000 candidate genes.
Results: In total 62 cases with 40 colon cancer patients and 22 healthy patients were included in our analysis.
Each case consists of 2000 genes which challenged all the competitive method. From the results, we are so
surprised that our proposed method outperforms the classical variable selection approaches in error rate of
training data and extra testing data.
Conclusions: Logistic adaptive ridge procedure is very effective for colon cancer predictions, either in
terms of prognosis or diagnose. It may benefit patients by guiding therapeutic options. We hope it will
contribute to the wider biology and related communities.
Seasonal Pattern of Epileptic Seizures: A Single-Center Experience
Authors: Alexandratou Ioanna , Verentzioti A. , Siatouni A. , Alexoudi A. , Gkougka D. , Alexandratou Ioanna , Stefanatou M. , Patrikelis P. , Efthimiopoulos S. , Gatzonis S. , Stavrakakis S.
Published: May 2020

Purpose: To evaluate the seasonal fluctuation of epileptic seizures during one year.
Methods: This was a single centre retrospective observational study. Demographic data, number and type
of epileptic seizures were collected and analyzed using a dataset from the outpatient epilepsy clinic of a
tertiary hospital, during one year. The statistical tools included descriptive statistics, contingency tables,
Chi-square of goodness-of-fit tests, and general linear models.
Results: In total, 143 consecutive patients were included in the study. Among the patients, 72 were women
and 71 men. In total, 1,351 epileptic seizures were recorded during one year. A significantly higher rate of
epileptic seizures during spring and summer was revealed. An association between the type of epileptic
seizure and the month of the year was recorded. Specifically, focal seizures with impairment of awareness
fluctuate throughout the year, with a sudden peak during June.
Significance: Epidemiologic data regarding epilepsy seasonality have so far received only limited attention.
In our study, a seasonal pattern was recorded on the occurrence of epileptic seizures. Further research
combining different weather conditions and environments is needed to fully characterize the seasonality of
epilepsy.
Spine Surgical Procedures during Coronavirus Disease 2019 Pandemic: Is It Still Possible to Take Care of Patients? Results of an Observational Study in the First Month of Confinement
Authors: Meyer Mikael , Prost Solène , Farah Kaissar , Denis Jean-Baptiste , Dufour Henry , Blondel Benjamin , Fuentes Stéphane
Published: May 2020

Study Design: Observational study.Purpose: The actual sanitary crisis led to a massive mobilization of the sanitary system toward intensive care units and management of coronavirus disease 2019 (COVID-19) patients. However, some patients still require spinal interventions. The present study aimed to assess the impact of the COVID-19 pandemic on spine surgical in a moderate COVID-19 cluster region.Overview of Literature: Previous studies have reported screening and management of patients with spinal conditions during the COVID-19 pandemic. However, to date, knowledge, no observational study on spine surgeries during the pandemic has not been reported.Methods: Between March 17, 2020 and April 17, 2020, information on spine surgical activity was prospectively collected at our institution. This surgical activity related to the first month of confinement in France was compared to the activity during the same period in 2019 to evaluate the impact of the COVID-19 pandemic on surgical activities.Results: In order to reduce the contamination rate of patients and medical staff during hospitalization, the spine department was completely reorganized. Non-urgent elective spine surgeries were cancelled. When considering the global amount of surgeries procedures during the first month of confinement, a decrease of almost 50% was observed in the number of surgical procedures. During the study period, 62 patients were eligible for spine surgery. The numbers of patients managed for tumor and infectious cases were stable, while a considerable reduction was observed in the number of trauma and degenerative cases. During the follow-up period, two patients were tested as COVID+ during the postoperative course, and no cases of medical or paramedical staff contamination were reported using polymerase chain reaction-testing.Conclusions: During the COVID-19 pandemic, it is possible to maintain spine surgical activity. Each surgical procedure must be discussed and organized with all the caregivers involved. Indications for surgery must be in line with the scientific guidelines and adapted to each healthcare facility.
Global neurosurgery: a scoping review detailing the current state of international neurosurgical outreach
Authors: Fuller Anthony T. , Barkley Ariana , Du Robin , Elahi Cyrus , MScGH  , Tafreshi Ali R. , Von Isenburg Megan , Haglund Michael M.
Published: May 2020

OBJECTIVE

Global neurosurgery is a rapidly emerging field that aims to address the worldwide shortages in neurosurgical care. Many published outreach efforts and initiatives exist to address the global disparity in neurosurgical care; however, there is no centralized report detailing these efforts. This scoping review aims to characterize the field of global neurosurgery by identifying partnerships between high-income countries (HICs) and low- and/or middle-income countries (LMICs) that seek to increase neurosurgical capacity.

METHODS

A scoping review was conducted using the Arksey and O’Malley framework. A search was conducted in five electronic databases and the gray literature, defined as literature not published through traditional commercial or academic means, to identify studies describing global neurosurgery partnerships. Study selection and data extraction were performed by four independent reviewers, and any disagreements were settled by the team and ultimately the team lead.

RESULTS

The original database search produced 2221 articles, which was reduced to 183 final articles after applying inclusion and exclusion criteria. These final articles, along with 9 additional gray literature references, captured 169 unique global neurosurgery collaborations between HICs and LMICs. Of this total, 103 (61%) collaborations involved surgical intervention, while local training of medical personnel, research, and education were done in 48%, 38%, and 30% of efforts, respectively. Many of the collaborations (100 [59%]) are ongoing, and 93 (55%) of them resulted in an increase in capacity within the LMIC involved. The largest proportion of efforts began between 2005–2009 (28%) and 2010–2014 (17%). The most frequently involved HICs were the United States, Canada, and France, whereas the most frequently involved LMICs were Uganda, Tanzania, and Kenya.

CONCLUSIONS

This review provides a detailed overview of current global neurosurgery efforts, elucidates gaps in the existing literature, and identifies the LMICs that may benefit from further efforts to improve accessibility to essential neurosurgical care worldwide.
Open versus minimally invasive decompression for low-grade spondylolisthesis: analysis from the Quality Outcomes Database
Authors: Bisson Erica F. , Mummaneni Praveen V. , Virk Michael S. , Knightly John , Alvi Mohammed Ali , Goyal Anshit , Chan Andrew K. , Guan Jian , Glassman Steven , Foley Kevin , Slotkin Jonathan R. , Potts Eric A. , Shaffrey Mark E. , Shaffrey Christopher I. , Haid Regis W. , Fu Kai-Ming , Wang Michael Y. , Park Paul , Asher Anthony L. , Bydon Mohamad
Published: May 2020

OBJECTIVE

Lumbar decompression without arthrodesis remains a potential treatment option for cases of low-grade spondylolisthesis (i.e., Meyerding grade I). Minimally invasive surgery (MIS) techniques have recently been increasingly used because of their touted benefits including lower operating time, blood loss, and length of stay. Herein, the authors analyzed patients enrolled in a national surgical registry and compared the baseline characteristics and postoperative clinical and patient-reported outcomes (PROs) between patients undergoing open versus MIS lumbar decompression.

METHODS

The authors queried the Quality Outcomes Database for patients with grade I lumbar degenerative spondylolisthesis undergoing a surgical intervention between July 2014 and June 2016. Among more than 200 participating sites, the 12 with the highest enrollment of patients into the lumbar spine module came together to initiate a focused project to assess the impact of fusion on PROs in patients undergoing surgery for grade I lumbar spondylolisthesis. For the current study, only patients in this cohort from the 12 highest-enrolling sites who underwent a decompression alone were evaluated and classified as open or MIS (tubular decompression). Outcomes of interest included PROs at 2 years; perioperative outcomes such as blood loss and complications; and postoperative outcomes such as length of stay, discharge disposition, and reoperations.

RESULTS

A total of 140 patients undergoing decompression were selected, of whom 71 (50.7%) underwent MIS and 69 (49.3%) underwent an open decompression. On univariate analysis, the authors observed no significant differences between the 2 groups in terms of PROs at 2-year follow-up, including back pain, leg pain, Oswestry Disability Index score, EQ-5D score, and patient satisfaction. On multivariable analysis, compared to MIS, open decompression was associated with higher satisfaction (OR 7.5, 95% CI 2.41–23.2, p = 0.0005). Patients undergoing MIS decompression had a significantly shorter length of stay compared to the open group (0.68 days [SD 1.18] vs 1.83 days [SD 1.618], p < 0.001).

CONCLUSIONS

In this multiinstitutional prospective study, the authors found comparable PROs as well as clinical outcomes at 2 years between groups of patients undergoing open or MIS decompression for low-grade spondylolisthesis.
Koncepcja podatku turystycznego nakładanego we Włoszech
Authors: Burzec Marcin
Published: May 2020

W artykule omówiony został podatek turystyczny nakładany we Włoszech na osoby przebywające tymczasowo w miejscowościach turystycznych. W celu dokładnego przedstawienia poszczególnych elementów konstrukcyjnych powyższej daniny analizie poddane zostało kilkadziesiąt uchwał włoskich rad gmin. Celem opracowania jest wskazanie na różne możliwości kształtowania elementów konstrukcyjnych danin nakładanych na turystów. Jest to o tyle istotne, gdyż w pewnych aspektach, regulacje włoskie uwypuklają mankamenty polskich przepisów prawa na podstawie których nakładane są opłaty obciążające turystów.
Wieloletnie planowanie finansowe na szczeblu Unii Europejskiej
Authors: Jędrzejczyk Michał
Published: May 2020

Zasadniczym celem artykułu jest zaprezentowanie koncepcji planowania finansowego i ewolucyjnego odejścia od zasady rocznego planowania budżetowego obowiązującego w okresie funkcjonowania Wspólnot Europejskich na rzecz koncepcji wieloletniego planowania finansowego Unii Europejskiej aż do jej ostatecznego podniesienia do rangi prawa traktatowego. Rozważania w opracowaniu koncentrują się na wykazaniu, że współczesny obraz planowania wieloletniego w Unii Europejskiej, jest wynikiem podjęcia ogromnego wysiłku (zwłaszcza politycznego) i stworzenia odpowiednich warunków umożliwiających dostrzeżenie zalet planowania wieloletniego. Jednocześnie autor podkreśla, że zainteresowanie prawodawstwem i doktryną dotyczącą prawa pierwotnego i wtórnego Unii Europejskiej wynika z faktu wpływu przepisów prawa Unii Europejskiej na obecnie stosowane w Polsce rozwiązania prawne dotyczące wzmocnienia dyscypliny finansowej, prognozowania i planowania wieloletniego. W ocenie autora konieczność dostosowania polskiego systemu budżetowania do wieloletniego planowania finansowego wynikała z potrzeby wpisania się w model gospodarczej i przestrzennej spójności z innymi krajami unijnymi oraz ustalonej, wspólnej polityki strukturalnej, w celu osiągnięcia wytyczonych przez nią celów i kierunków rozwoju. Artykuł został podzielony na cztery części: wstęp, planowanie finansowe w okresie funkcjonowania wspólnot europejskich, nałożenie na kraje członkowskie UE obowiązku wieloletniego planowania finansowego oraz zakończenia. Podstawową metodą badawczą zastosowaną w artykule była metoda dogmatyczno-prawna, dzięki której, w oparciu o zasady wykładni prawa, dokonano analizy tekstów prawnych. Zgodnie z takim założeniem, analizy i oceny zostały sformułowane przy wykorzystaniu poglądów doktryny oraz nauki prawa finansowego.
Bezpieczeństwo międzynarodowe w traktatach o przyjaźni i współpracy zawartych przez Polskę z państwami sąsiednimi
Authors: Staszewski Wojciech
Published: May 2020

Wydarzenia przełomu lat 1989-1990, które wpłynęły na przemiany w Polsce oraz w innych państwach Europy Środkowej i Wschodniej spowodowały, że kwestie bezpieczeństwa i gwarancji jego zapewnienia stały się podstawowym elementem polskiej racji stanu i głównym celem realizowanej polityki zagranicznej. Rozpoczął się proces budowy nowych powiązań traktatowych. W niniejszym artykule dokonano analizy traktatów o przyjaźni i współpracy zawartych przez Polskę, które odgrywają szczególną rolę w stosunkach traktatowych państw. Zakres podmiotowy został ograniczony do umów podpisanych z państwami sąsiednimi, biorąc pod uwagę fakt zmian, które zaszły w bezpośrednim otoczeniu Polski, która zyskała na swoich granicach nowych sąsiadów. Celem opracowania jest udzielenie odpowiedzi na pytanie badawcze, czy w traktatach o przyjaźni i współpracy zawartych przez Polskę po 1989 r. z państwami sąsiednimi znalazły się postanowienia odnoszące się do bezpieczeństwa międzynarodowego, stanowiące przejaw wspólnego zainteresowania i współpracy państw w tym zakresie oraz czy regulacjom tym nadano odpowiednią rangę, a tym samym, czy znalazły się odpowiednie gwarancje dla zapewnienia bezpieczeństwa Rzeczypospolitej Polskiej.
Usługi świadczone w interesie ogólnym jako element europejskiego modelu społecznego
Authors: Wacinkiewicz Daniel
Published: May 2020

Obecna sytuacja polityczna, gospodarcza i społeczna uwypukliła zasadniczą rolę usług

świadczonych w interesie ogólnym w Unii Europejskiej.

Trzy kategorie usług są kwalifikowane do usług służących dobru ogółu i, w związku z tym, podlegają szczególnym zobowiązaniom: Usługi świadczone w ogólnym interesie gospodarczym (podstawowe usługi świadczone odpłatnie); Usługi o charakterze nieekonomicznym (takie jak np. działalność policji czy wymiaru sprawiedliwości); Usługi socjalne świadczone w interesie ogólnym ( oparte się na zasadzie solidarności i równego dostępu).

W dziedzinach takich jak opieka nad dziećmi lub opieka nad osobami starszymi, opieka zdrowotna czy pomoc osobom niepełnosprawnym te usługi stanowią istotne narzędzie dla bezpieczeństwa obywateli. Usługi świadczone w interesie ogólnym odgrywają także kluczową rolę dla spójności społecznej.
How to Transversely Develop Ability Emotional Intelligence Ability through School Subjects? A Theoretical Proposal
Authors: Mestre José M.
Published: May 2020

Since emotional intelligence (EI) was developed in 1990, the field of Education took advantage of the possibilities of EI. Indeed, EI-specific programs proliferated and developed as socio-emotional learning programs (SEL). However, there is an alternative to realize non-specifically and longer and viability way for improving the implicit abilities of EI (AEI). The article claims to work a theoretical proposal to develop the AEI in compulsory education through the subjects. This proposal is based on the Cattell-Horn-Carroll theory of cognitive abilities (CHC). CHC abilities are stimulated by most of the mandatory subjects of both Primary and Secondary Schools. The second stratum of CHC model is composed of similar cognitive abilities as 1997-Ability Emotional Intelligence Model (perception, using, understanding, and managing emotions), which is different from trait EI approaches - that consider EI has personality traits as well. It has pointed out that the capacities of the CHC-model second stratum are connected to the capabilities of AEI. Therefore, any educational activity that optimizes perception, understanding, attentional control or planning is affecting the development of AEI. Promoting AEI involves hot information processing. It is convenient to use transversely hot information processing - this means that this information has special meaning for the people. Connecting hot information to mandatory subjects teaching would develop the abilities of EI. Both Sciences and Natural Sciences pedagogic devices can improve emotional perception. However, Social Sciences and Humanities foster both emotional understanding and knowledge. Finally, the different contingencies that occur in school life scenarios are suitable for training of emotional regulation.
Implicit Theories of Emotional Intelligence, Ability and Trait-Emotional Intelligence and Academic Achievement
Authors: Costa Ana , Faria Luísa
Published: May 2020

This study examines the effect of the implicit theories of emotional intelligence and of emotional intelligence (EI; ability and trait EI) on
students’ academic achievement (GPA). Five hundred twenty-three 10th graders (Mage = 15.5; SD = 0.67) completed measures of implicit theories
(IT) and EI (performance and self-report). The results confirmed the direct effect of EI (ability and trait EI) on students’ GPA. Moreover, implicit theories of EI affected students’ trait EI and only indirectly affected students’ achievement. Multigroup analyses indicated that the IT and EI effects on students’ GPA were similar across students’ gender and socio-professional status. These findings underline the relevance of
students’ implicit theories and EI and suggest their usefulness as strategies to foster academic success.
On the Development of Emotional Intelligence
Authors: Babić Čikeš Ana , Buško Vesna
Published: May 2020

This study focuses on the developmental changes in emotional intelligence (EI) abilities during early adolescence. During class hours, 561 students in the first wave (Mage = 12.32, SDage = 1.22, 54.5%
of boys) and 369 students in the second wave (M = 13.40; SD = 0.98, 52.3% of boys) completed Perception of Affective Content in Art Test, Analysis of Emotions Test, Emotion Management Test and rated their peers’ EI at two waves, 18 months apart. They also completed a Mill Hill
Vocabulary Scale within the first wave. Students’ EI was also rated by their home room teacher and one teacher who completed Teacher Ratings of
EI Questionnaire specifically designed for this study. Results showed that girls and older students scored higher on EI tests and peers’ ratings. Oldest students achieved the lowest scores on teacher ratings. The longitudinal analysis confirmed positive changes between the first and the second wave. Results of both the crosssectional and two waves analysis revealed significant effects of gender and general cognitive ability, measured with vocabulary test, on EI measures.
Effects of Measures of Emotional Intelligence on the Relationship between Emotional Intelligence and Transformational Leadership
Authors: Hajncl Ljerka , Vučenović Dario
Published: May 2020

The major purpose of the present study was to investigate the relationships between two measures of emotional intelligence: performance-based ability test, self-reported measure of ability emotional intelligence, and transformational leadership. Base on a sample of 177 middle-level and low-level leaders, in 16 organizations, the study tries to explain the role of emotional intelligence in the variance of transformational leadership style, after controlling for cognitive ability and five factors of personality. Vocabulary Emotion Test (VET-3), representing performance-based ability test of emotional intelligence, and Emotional Skills and Competence Questionnaire (ESCQ-45), representing self-report measure of emotional intelligence, TN-10 test of fluid intelligence and BFI - inventory of personality traits were administered to all supervisors in identifying their emotional intelligence, cognitive ability and personality traits. To evaluate the transformational leadership style, the short version of a Multifactor Leadership Questionnaire (MLQ X5) was used for 177 selfratings. The results show that VET-3 as the measure of ability EI has no relationship with transformational style. The results obtained in
hierarchical regression analysis of self-ratings transformational leadership show that the personality traits were significant predictors but that selfreport measure of EI incrementally explained 5% of the variance of transformational leadership.
RELATIONSHIP BETWEEN ANTHROPOMETRIC PARAMETERS AND INTELLIGENCE IN PRESCHOOL CHILDREN FROM RURAL KONKAN
Authors: Patil Suvarna Netaji , Joglekar Chartudatta , Sonavane Swati , Chavan Rupali , Bhat Pallavi , Mohite Rachana , Deorukhakar Pralobhana , Jadhav Dnyaneshwar , Dervankar Omkar Anant
Published: May 2020

Aim: To study association between anthropometric parameters and intelligence in preschool children from Rural KONKAN.Method: Children between 3 to7 years of age were examined for anthropometry, dietary recall and Intelligence (Intelligent Quotient-IQ) assessment from rural anganwadis. IQ test was performed by clinical psychologist using Binet-Kamat test of intelligence (version 4). Nutritional information was collected from 24- hour dietary recall and food diversity. Results: Results were interpreted using Prorated IQ We studied 159 (82 boys, 78 girls) out of which 15 (9.6%) had higher IQ. 25 (15.8%) were born LBW. Anthropometry classification showed that 61 (38.4%) were stunted and 25(15.7%) were wasted. According to IOTF, 72 (46%) were thin, 83(52%) were normal and 3 (2%) were overweight. we found that there is no significant difference in IQ with respect to anthropometric parameters, birth weight and nutritional status. Conclusion: We could not find any association of anthropometric parameters with IQ inspite of high prevalence of malnutrition. Brain is vital organ which can be protected by redistribution of blood flow at the cost of other organs like liver and abdominal viscera, which are the markers for future risk of diabetes. There is need to improve nutritional status. New update of IQ test is much needed as the current test is more than 50 years old and does not take into account the social, cultural transition over last 2 decades.
MATHEMATICAL MODELLING OF A TWO-STAGE ANAEROBIC DIGESTION PROCESS WITH HYDROGEN AND METHANE PRODUCTION USING ADM1
Authors: Borisov Milen , Denchev Dencho , Simeonov Ivan
Published: May 2020

The aim of this study is to implement a mathematical model to simulate the dynamic behaviour of a two-stage anaerobic digestion process for simultaneous production of hydrogen and methane. The process is carried out in two connected continuously stirred bioreactors. The proposed model is developed by reducing the well known IWA Anaerobic Digester Model No 1 (ADM1). In the present study the original model concept was adapted and applied to replicate a two-stage process. The proposed model involves 13 ODEs for the 1st stage and 7 ODEs for the 2nd stage. The numerical coefficient values in the model are taken from specified literature and adapted to the case of wheat straw AD. Important input-output static characteristics and existence of maxima of the input-output static characteristics concerning the biohydrogen and biomethane production in function of the control variable (dilution rate) are presented. Supposing that both bioreactors are operating nearby these maxima the optimal ratio of the working volumes was obtained. Numerical simulations using a specially elaborated web-based software environment are presented to demonstrate the dynamic behavior of the model solutions.
CONVERSION OF COAL FLY ASH TO ZEOLITE-BASED IRON OXIDE MAGNETIC NANOCOPOSITES BY MODIFIED FUSION-HYDROTHERMAL SYNTHESIS
Authors: Boycheva Silviya , Zgureva Denitza
Published: May 2020

Coal fly ash generated in Thermal Power Plants is utilized for synthesis of zeolites due to its aluminosilicate composition. The highest degree of zeolitization of coal ash in a particular zeolite phase is achieved by double-stage synthesis involving successive alkaline melting and hydrothermal activation of the reaction mixtures, while the uniform distribution of the iron oxides transferred from the raw coal ash is ensured by ultrasonic treatment. However, the applied melting step results in the oxidation of the magnetic iron oxide phases to non-magnetic ones, which results in the loss of magnetic properties of the resulting materials. The present investigation focuses on an improved double- stage synthesis procedure by the addition of raw coal ash containing magnetite between high temperature and low temperature processing. In this way, the magnetic phase is retained in the final product and the magnetic properties of the zeolites are preserved, which is important for their application in the adsorption of pollutants from wastewater.
WATER CONTENT OF MIXED HONEY BEES-COLLECTED POLLEN
Authors: Radev Zheko
Published: May 2020

The knowledge of the water content of pollen is important to determine the amount of protein content, lipids, sugars, minerals and other components in the dry matter. The water content of mixed honey bee-collected pollen was determined by a method of drying. A table of the water content in the mixed pollen from different harvesting periods was made. The percentage of water content in the mixed bee-collected pollen samples ranged between 12.3% and 26.6% and the average was 18.8%. Pollen from different harvesting periods has different water content. There are also differences among the same months during three years. The average value of water content for each year is also different. According to the results, can’t be said during which season (spring, summer, autumn) the pollen has higher or lower water content. Ecological factors, especially rainfalls, can also affect water content.
THE PRODUCTION AND SPECIFICATION ANALYSIS OF AVIATION BIOFUEL AS THE ALTERNATIVE FUEL OF AIRPLANE
Authors: Asnadi Cheppy , Marno Septhian , Lestari Poppy , Islami Difany , Putri Nelliza , Rustyawan Wawan
Published: May 2020

CO2 emissions and scarcity of petroleum supplies can be reduced by the use of renewable energy sources. This has led to the development of low emission aviation turbine fuel derived from vegetable materials. The process used Hydroprocessed Esters and Fatty Acids (HEFA) that consisted of hydrotreating and isomerization. This experiment consisted of production and analysis. The production of aviation biofuel developed based on coconut oil through the process of hydrotreating deoxygenation (HDO) and hydrotreating isomerization (HDI) on the hydrotreater reactor. Further analysis of aviation biofuel products and aviation biofuel blending includes Total Acid Number (TAN), existent gum, density at 15 °C, flash point, smoke point, freezing point, distillation, total sulfur content, distribution of C10-C14 carbon, and levels of Iso-Paraffin Olefin Naphthene (PION). Based on the experimental results, it can be concluded that the Aviation Biofuel complied for TAN, density at 15 °C, and freezing point parameters. Aviation Biofuel blending of 2%, 5%, and 10% were in accordance with the Aviation Biofuel Defence Standard 91-91 for all parameters.
Phosphorus Extraction from Fish Waste Bones Ash by Acidic Leaching Method
Authors: Darwish Mohamad , Aris Azmi , Puteh Mohd Hafiz , Abdul Kadir Aeslina , Mohamed Najib Mohamed Zuhaili , Mustafa Shaymaa
Published: May 2020

The worldwide demand of phosphorus (P) is rising rapidly; however phosphate ores are not renewable. Fish bones contain high amounts of P, but hardly recycled or reused. Therefore, this study investigated P extraction from fish waste bones by acidic leaching method. The study shows that P content in fish bones ash is around 17 wt.%. Acidic leaching of P is carried out using different concentrations of sulphuric acid (H2SO4), to determine the optimum condition of P recovery. More than 97% of P is extracted using 2 M H2SO4 and an acid-ash ratio of 1.5 kg H2SO4/kg ash. Besides, it was found that a reaction period of 90 min is enough to accomplish complete dissolution of fish waste bones ash. The present work suggested that recovering P from fish bones ash is worthy, which is highly advantageous for further applications that apply P additions.
Metropolis as a Source of Aerosol Pollution – Assessment of Hazardous Factors and Ways to Minimize Negative Impact
Authors: Kolpak Eugeny , Kondrashev Sergey , Chernega Taisiia , Petunina Irina
Published: May 2020

The purpose of this article is to study aerosol pollution in a metropolis (Moscow), to evaluate the dangerous factors of aerosol pollution and ways to minimize their impact on the population and ecosystems of the city and surrounding areas. The research has been conducted in January 2015-August 2019 for five locations in the territory of Moscow, and one location 50 km from the metropolis. 10,978 samples have been processed in Moscow and the region, of which 2089 have been samples for station 1, 1597 – for station 2, 1956 – for station 3, 1971 – for station 4, 1704 – for station 5 and 1661 – for station 6. For all six locations in Moscow and the region, the average daily aerosol pollution exceeds 3%, which indicates a fairly safe composition of atmospheric air in the territory of the metropolis. The variability in the PM10 concentration indicators varies significantly between the years, more than three times in comparison with the variability between the seasons ( p ≤ 0.05). Aerosol pollution of the Moscow metropolis is characterized by pronounced seasonality – maximum PM10 concentrations in April and minimal in November-December. The difference between warm and cold seasons can reach 15-20 μg/m3. In the annual cycle, a surge in PM10 is observed in April, immediately after snow melts, when there is a sharp change in humidity in the atmosphere of the metropolis.
Investigations on Two-lead and Three-lead Rotor Connections of Doubly Fed Induction Generator
Authors: Banerjee Sandeep , Joshi Dheeraj , Singh Madhusudan
Published: May 2020

The doubly-fed induction generator (DFIG) has conventionally been put to use with multi-wattage wind turbines to obtain a sophisticated grid-connected network. This configuration is usually put to use for directly feeding power to grid-connected loads. In this paper, a DFIG with DC excited rotor has been implemented to obtain a novel control strategy which is easier to implement and exploit. The novelty aspect of this work concerns proposing and providing comparison and investigation of two topologies: two-lead and three-lead DFIG connections. These two strategies yield a near-perfect sinusoidal waveform at the stator with very low total harmonic distortion (THD) at steady state. The results presented in this work validate that the usage of DFIG with rotor excited via DC is a simple and easy method for exploiting wind energy. The two-lead and three-lead DFIG configurations can be extensively put to use in Asian countries to boost renewable energy production, thereby decreasing pollution. Increased tapping of the power from wind will result in a reduction in the potential hazards to the environment due to conventional methods of electrical energy generation.
Damping of Power System Oscillations in Renewable Integrated Power System Using Unified Power Flow Controller
Authors: Bhati Jaswant Singh , Vadhera Shelly
Published: May 2020

The deficiency of non-renewable energy sources makes the study of renewable energy sources, distributed generation and their operation in a power system network very much relevant to the current scenario. Power system network consisting of diesel generator set as a base power generating station, one wind farm as a source of renewable energy, five bus network, and a three-phase load is considered to study the damping of power system oscillations with the help of a prevalent flexible a.c. transmission system (FACTS) device named unified power flow controller (UPFC). The test system is simulated using MATLAB/Simulink. Simulation results verify the efficacy of unified power flow controller in damping out oscillations in the power system.
The Effect of Agricultural Practices on the Drinking Water Quality: A Case Study
Authors: Spitsov Dmitriy , Nekrasova Larisa , Kondratenko Larisa , Pushkin Sergey , Klyuchnikov Denis
Published: May 2020

The problem of drinking water quality assessment and the impact of agricultural practices on it is relevant these days. A certain select area can serve as a convenient model object in the investigation. This work aims to assess the effect of agricultural practices on the quality of drinking water. The qualitative and quantitative composition of drinking water consumed by the habitants of Vladivostok, Russian Federation, was investigated in 2018. A total of 1000 samples were collected from wells, small rivers, channels located nearby the wastewater treatment facilities, from a river flowing near fields and livestock farms, and from a river with the minimal anthropogenic impact. To evaluate the drinking water suitability, the following parameters were addressed: the mineral level, hardness, alkalinity, permanganate oxidation, and the concentration of various salts and ions, specifically Ca2+, Cl–, SO4, HCO3, NO2, Mg2+, P, and NH4-N. The concentration of organic compounds is affected by two factors, water temperature and pH. The mineral level in water near the farmland is 1.7-3 times higher than the norm ( p ≤ 0.05). Intermediate results (i.e., elevation of 1.5 times) were obtained for wells and small rivers ( p ≤ 0.05). In the preserve, all parameters are close to normal value. Thereby, almost all substances under study demonstrate elevation of at least 2-20 times. The reason for this situation is the human factor.
Cantor–Bendixson ranks of effectively closed sets in admissible recursion theory
Authors: Johnston Reese
Published: May 2020

The range of possible ordinal values for the Cantor–Bendixson rank of an effectively closed set in Cantor space, and the relationship between the ranks and the Turing degrees of its members, have been closely studied. The wide array of results on this topic have often made use of useful topological features of Cantor space (notably, compactness) and of key properties of computable well-orders. In this paper, a number of these results are extended to the case of Cantor space on the first uncountable ordinal, in which these properties do not hold, using admissible recursion theory.
Integrating Convolutional Neural Networks and Multi-Task Dictionary Learning for Cognitive Decline Prediction with Longitudinal Images
Authors: Dong Qunxi , Zhang Jie , Li Qingyang , Wang Junwen , Leporé Natasha , Thompson Paul M. , Caselli Richard J. , Ye Jieping , Wang Yalin ,   for the Alzheimer’s Disease Neuroimaging Initiative
Published: May 2020

Background:

Disease progression prediction based on neuroimaging biomarkers is vital in Alzheimer’s disease (AD) research. Convolutional neural networks (CNN) have been proved to be powerful for various computer vision research by refining reliable and high-level feature maps from image patches.

Objective:

A key challenge in applying CNN to neuroimaging research is the limited labeled samples with high dimensional features. Another challenge is how to improve the prediction accuracy by joint analysis of multiple data sources (i.e., multiple time points or multiple biomarkers). To address these two challenges, we propose a novel multi-task learning framework based on CNN.

Methods:

First, we pre-trained CNN on the ImageNet dataset and transferred the knowledge from the pre-trained model to neuroimaging representation. We used this deep model as feature extractor to generate high-level feature maps of different tasks. Then a novel unsupervised learning method, termed Multi-task Stochastic Coordinate Coding (MSCC), was proposed for learning sparse features of multi-task feature maps by using shared and individual dictionaries. Finally, Lasso regression was performed on these multi-task sparse features to predict AD progression measured by the Mini-Mental State Examination (MMSE) and the Alzheimer’s Disease Assessment Scale cognitive subscale (ADAS-Cog).

Results:

We applied this novel CNN-MSCC system on the Alzheimer’s Disease Neuroimaging Initiative dataset to predict future MMSE/ADAS-Cog scales. We found our method achieved superior performances compared with seven other methods.

Conclusion:

Our work may add new insights into data augmentation and multi-task deep model research and facilitate the adoption of deep models in neuroimaging research.
Review of CT image reconstruction open source toolkits
Authors: Shi Liu , Liu Baodong , Yu Hengyong , Wei Cunfeng , Wei Long , Zeng Li , Wang Ge
Published: May 2020

Computed tomography (CT) has been widely applied in medical diagnosis, nondestructive evaluation, homeland security, and other science and engineering applications. Image reconstruction is one of the core CT imaging technologies. In this review paper, we systematically reviewed the currently publicly available CT image reconstruction open source toolkits in the aspects of their environments, object models, imaging geometries, and algorithms. In addition to analytic and iterative algorithms, deep learning reconstruction networks and open codes are also reviewed as the third category of reconstruction algorithms. This systematic summary of the publicly available software platforms will help facilitate CT research and development.
Reparto del tiempo de trabajo y lucha contra el desempleo
Authors: Redacción Consejo de
Published: May 2020

El paro reviste una gravedad especial en los países industrializados de Europa, y más en particular en España. Esta es la razón que nos hace volver sobre la lucha contra el desempleo, aunque ya la abordamos en estas mismas páginas no hace mucho tiempo. Sin embargo ahora nos hemos propuesto hacerlo, no en toda su complejidad, sino fijándonos en un aspecto especialmente debatido en estos meses: el reparto de trabajo.
La modernización:
Authors: Entrena Durán Francisco
Published: May 2020

Las descolonizaciones y el consiguiente surgimiento de un gran número de países independientes, que tuvieron lugar después de la segunda guerra mundial, propiciaron un considerable acrecentamiento del interés por la modernización, concebida como el proceso de cambio que requerían tales países para desarrollarse. En realidad, la preocupación por el cambio modernizador viene de muy atrás y está enraizada en la visión teleológica de la historia como progreso ilimitado que tanta fuerza tuvo en la evolución de la sociedad occidental y en el desarrollo del pensamiento sociológico clásico. A pesar de que está agotada la confianza en la idea de progreso y de que la sociedad urbano–industrial occidental (que fue la meta a alcanzar para la mayoría de los artífices y teóricos de la modernización) se halla inmersa en la crisis de la posmodernidad, en este trabajo se considera que todavía permanecen en pleno vigor las aspiraciones de democracia, desarrollo y bienestar social asociadas tradicionalmente a los procesos de modernización. Pero, como hoy está plenamente claro que ya no puede seguir manteniéndose la tradicional visión etnocéntrica occidentalista de tales procesos, se propone aquí un modelo para el análisis de los mismos en el presente contexto de globalización.
Reseñas
Authors: Camacho Laraña Ildefonso , Gorosquieta Reyes Javier , Prieto Martínez Fernando , Amador Hidalgo Francisco
Published: May 2020

Reseñas de las obras de:
CENTRO PIGNATELLI (Editor), (1977), Seminario de Investigación para la Paz. Los derechos humanos, camino hacia la paz, Ed. Departamento de Educación y Cultura del Gobierno de Aragón, Zaragoza, 350 págs.
EDIS y Varios (1998), Las condiciones de vida de la población pobre en España. Informe general, Ed. Fundación Foessa, Madrid, 750 págs.
VALLES, J.M. y BOSCH, A. (1997), Sistemas electorales y gobierno representativo, Ed. Ariel, Barcelona, 271 págs.
SCHWEICKART, D. (1997), Más allá del capitalismo, Ed. Sal Terrae, Santander 516 págs.
AMADOR HIDALGO, L. (1997), Inteligencia Artificial y Sistemas Expertos, Ed. Servicio de Publicaciones de la Universidad de Córdoba, Córdoba, 275 págs.
La Universidad en los EEUU: igualdad de oportunidades y financiación
Authors: Maldonado Majada Ricardo
Published: May 2020

Las autoridades políticas y económicas españolas insisten cada vez más en la necesidad de cambiar profundamente la estructura financiera de la educación superior. Palabras tales como «Privatización», «Eficiencia» y «Calidad» –cualesquiera que sean sus ocasionales significados– se aplican constantemente a todas las áreas de responsabilidad pública. La universidad no ha escapado a estas tendencias. Los políticos y estudiosos españoles observan otros modelos extranjeros y se preguntan si sería posible aplicar algunos elementos de ellos al modelo español. En este artículo se pretende describir el modelo financiero de la universidad en los EEUU y provocar la discusión que ha de surgir inevitablemente al compararlo con el caso español. Téngase presente en esta discusión que el transplante aislado de los elementos de un modelo de un país a otro sin considerar el ambiente social en el que aquellos se desarrollan, es siempre arriesgado.
La situación de la mujer trabajadora en España
Authors: Alemán Páez Francisco
Published: May 2020

El presente trabajo tiene por objeto analizar si la normativa vigente es adecuada para robustecer la posición de la mujer en el mercado de trabajo. Para ello en primer lugar se examina de forma evolutiva el marco jurídico de la mujer trabajadora. En segundo lugar se estudia su situación desde un prisma metajurídico, fáctico y sociológico, al objeto de poder valorar la verdadera efectividad de las medidas legislativas. Por último se apuntan posibles líneas de actuación que permitirían eliminar situaciones indeseables.
La deuda externa hoy
Authors: Gorosquieta Reyes, S.I. Javier
Published: May 2020

En relación con el llamado «Jubileo 2000», está en marcha una campaña a favor de la condonación, con ciertas condiciones, de la deuda externa de los países más pobres. Nuestros lectores encontrarán en el artículo siguiente un buen compendio del proceso de endeudamiento de los países del Tercer Mundo, de las iniciativas surgidas a lo largo de los años para paliar el grave problema de la deuda externa, de los foros internacionales en que se negocian las alternativas existentes y de la situación de España como país acreedor. El artículo viene seguido de un interesante documento sobre la cuestión de CIDSE y Caritas Internationalis
La ejecución de la política monetaria en la unión monetaria europea.
Authors: Rodero Franganillo Adolfo , López Martín María del Carmen
Published: May 2020

A partir del 1 de enero de 1999, con la entrada en funcionamiento de la unión monetaria, la política monetaria es responsabilidad del Sistema Europeo de Bancos Centrales y del Banco Central Europeo, con el fin primordial de lograr la estabilidad de precios. Este hecho, como es sabido, lleva consigo una pérdida de autonomía para las autoridades monetarias nacionales, las cuales no podrán adoptar decisiones individuales que tengan consecuencias únicamente en sus respectivos países. Por otro lado, la adopción de una política monetaria única, en principio, supone que los efectos de las medidas tomadas se trasladen al conjunto del área euro, en función de las circunstancias concretas que existan en cada momento para todo el área. En este texto se parte de una breve descripción de los principios generales de la política monetaria única y de sus instrumentos, así como de un comentario de carácter general sobre las grandes líneas de transmisión de la misma, para plantearnos posteriormente cuáles son los aspectos que pueden determinar si los efectos de dicha política monetaria serán los mismos en los diferentes países que forman la unión monetaria.
La tendencia centrífuga del consumo ocioso de los jóvenes: contextos y consecuencias
Authors: Callejo Javier
Published: May 2020

.
Una experiencia formativa para profesores
Authors: Camacho Laraña, S.I. Ildefonso , Etxeberría Xabier , Fernández José Luis
Published: May 2020

.