bluuebunny/crossref_metadata_2025 huggingface dataset:
Dosis Pupuk NPK Terhadap Pertumbuhan dan Hasil Jagung Hibrida
Authors: Pusparini Pricillia Galuh , Yunus Ahmad , Harjoko Dwi
Published: November 2019

Corn is an important crop. Potency of corn productivity in Indonesia are still low. Main obstacles of increasing corn productivity is convertion of fertile land into non agriculture interest. the increase of corn productivity can be done by administrating NPK fertilizer and hybrid variety. This research is aiming at deciding and analyzing the effect of NPK fertilizer administration and hybrid corn variety towards growth and result. This research was held in June to October 2017, at Srimartani Village, Piyungan Districts, Bantul Regency, Daerah Istimewa Yogyakarta with regosol soil type and land altitude around 80 meter above sea surface. This experiment arranged in split plot design by factorial. Experimented factor are two corn hybrid variety ABCD and EFGH (main plot) with three doses of NPK fertilizer 200, 300 and 400 kg ha-1 (sub plot). The result of research show that there are responds in two variety towards NPK fertilizer dosage almost same (unreal interraction). ABCD and EFGH variety reach highest result of height and component at 300 kg ha-1doses. Variable of cob weight with husk, cob weight without husk, cob length, total row, dry pipilan weight per plot, 100 seeds weight, fresh stover wieght, dry stover weight, harvest index and yield per hectare the highest average is variety of EFGH. NPK fertilizer dosage 300 kg ha-1 is the best amount to optimally increase the growth and yield of hybird corn (8,92 ton ha-1). EFGH variety with 300 kg ha-1 NPK fertilizer dosage can increase the potency of hybird corn yield. EFGH variety is showing better results (9,26 ton ha-1).  
PENGADAAN KOLEKSI BAHAN PUSTAKA DI PERPUSTAKAAN SEKOLAH TINGGI TEKNOLOGI KEDIRGANTARAAN YOGYAKARTA
Authors: Subagia Didik
Published: November 2019

This paper discusses the procurement collection in the Library of Yogyakarta Higher Technology College. This paper describes the description of planning activities and the method of procuring a collection of library materials in the Library STTKD Yogyakarta. This research was conducted by Qualitafif method with unstructured interview. The
conclusion of this paper is to try the library materials that have’nt been owned by the library STTKD and add materials that have been owned by the Library STTKD with the number of somewhat small, as for the planning step is the Inventory of library materials, library, setting preference. In addition, several methods of procurement of library materials are done in the following way: buyer, gift, exchange, donations, cooperation, endowments and self-published.

Keywords: collection of library materials, procurement, planning, library STTKD
KEGIATAN PENYIANGAN (WEEDING) BUKU, PASCA INTEGRASI PERPUSTAKAAN FAKULTAS DENGAN UNIT PELAKSANA TEKNIS PERPUSTAKAAN UNIVERSITAS SEBELAS MARET SURAKARTA
Authors: Utari Sri
Published: November 2019

The purpose of this paper are (1) to describe any procedures in the weeding activities after integrated library faculty with central library at Sebelas Maret Univercity in Surakarta and (2) to describe any obstacles encountered in the process of weeding at after integrated library faculty with central library at Universitas Sebelas Maret Surakarta. The type of this research is qualitative research through parsipative observation and study literature. The results of the research are summarized as follow. First, the process of weeding activity management a the Library after integrated
faculty library with central library at Univesitas Sebelas Maret Surakarta became old collection, Second. The obstacles faced in weeding activity management at Universitas Sebelas Maret is the absence of a written policy in weeding activities management, limits of space to surve collection, limits of librarians, and mistake of inputing on computer data base.

Key words: collection, weeding, old collections
FENOMENA CYBERBULLYING PADA MEDIA SOSIAL INSTAGRAM
Authors: Yanti Nurrahma
Published: November 2019

This paper aims to describe the phenomena of cyberbullying in social media especially
Instagram through the socio-legal approach. Cyberbullying is an intimidation and
aggressive behavior towards someone who is perpetually perpetrated in cyberspace
through internet connection, cyberbullying has a negative impact that can not be
underestimated, cyberbullying can be mockery, threats, fraud, insult, libel, stalking or
hacking. Based on Law Number 11 Year 2008 cyberbullying actors can be prosecuted
criminal law About Information and Electronic Transactions (UU ITE). This paper
also offers solutions to solving and ethics in using social media especially instragram.
Keywords: Cyberbullying, Cybercrime, Instagram
IDENTITAS DIRI DALAM POLITIK MASYARAKAT VIRTUAL SEBUAH TINJAUAN TENTANG ANONIMITAS
Authors: Prasetyo Dwi Cahyo
Published: November 2019

This article aims to examine the interrelationships between politics that exist in
virtual society, and their relationship with self-identity reflected in current anonymity
on social media. This article uses qualitative research methods, through existing
observation and literature studies. Technological advances form a new world called
the virtual world. The concept of identity in virtual society is a difference of opinion
between destitopians, neofuturists and technicians. The presence of this virtual world
makes people free to become anonymous or people without identity. In the political
contestation of anonymity can give the public the freedom to argue, while on the other
hand anonymity can have a negative impact which can lead to conflict.
Keywords: Anonymity, Virtual Society, politics
LAYANAN BIBLIOMETRIKA UNTUK MEMUDAHKAN DALAM PENGEMBANGAN KOLEKSI DI PERPUSTAKAAN PERGURUAN TINGGI
Authors: Kurniawan Asep Haikal
Published: November 2019

The library as an institution that has a function to support research within the academy needs to be more creative to create opportunities in service and collection development policies. The purpose of this writing is to describe various aspects of the possibility of developing bibliometrics services in university libraries to streamline the development of collections. The results of data collectors using literature study, found various aspects of benefits for acquisition and selecting collections by developing bibliometrics based on citation analysis. Other aspects that need to be considered in the development of collections are the relevance of collections, reliability, form and format, objectivity, and review
KEGIATAN SELEKSI BAHAN PUSTAKA DALAM PENGEMBANGAN KOLEKSI PADA PERPUSTAKAAN PERGURUAN TINGGI
Authors: Nurwahyu Nurwahyu
Published: November 2019

This paper aims to find out how library material selection activities in the development of collections in the university library are high. The library as an information provider unit always develops collections to meet the information needs of its users. As the development of science and information technology has an impact on the development of library collections with more complex information content which is a consideration in the development of library collections, the more challenging challenges of library selection as an effort to build a library collection that is strong and right on target for the user community. The method used in this study is descriptive in the form of literature review by taking secondary data obtained from several literature or literature studies (Research libraries) that are relevant in accordance with the problems discussed by reviewing and analyzing then described descriptively. The results of the discussion of this article are to show that library material selection is included as one of the important factors needed in the development of authority in library material selection at the college library. The provisions regarding the selection are regulated according to the type and structure of the library organization in question and are guided by the collection development policies and work procedures that have been set. With the selection of activities this helps the selector in choosing materials that will be used as library collections and becomes one of the activities that greatly determines the quantity and quality in developing collections in the library. Through this selection, it is expected that the collection of quality and relevant collections can be achieved according to the needs of the users. So if library material selection does not refer to the collection policy guidelines and work procedures that have been set, the quality in the development of collections in the library is not in accordance with user needs. collection. The activities carried out are processes, principles, tools, criteria, and parties
Well-Leg Rhabdomyolysis After Prolonged Knee Arthroscopy
Authors: Reynolds Christopher , Johnson David B. , Triplet Jacob J. , Comisar B. Rodney
Published: November 2019

Case:

We present the case of an obese patient who underwent combined arthroscopic and open multiligamentous knee reconstruction who, 3 months later, required revision arthroscopic anterior cruciate ligament and posterior cruciate ligament reconstruction with open lateral collateral ligament and posterolateral corner reconstruction lasting 6 hours 30 minutes. The patient developed rhabdomyolysis of the nonoperative leg after the revision procedure. Both procedures were performed in a hemilithotomy position with a commonly used leg positioner.

Conclusions:

Complications secondary to patient positioning are a source of unnecessary patient morbidity. Surgeons should be mindful of the nonoperative extremity, particularly during prolonged cases in obese patients. Prompt diagnosis and multidisciplinary treatment can lead to the resolution of symptoms without long-term sequelae.
Periprosthetic Humeral Fractures in Shoulder Arthroplasty
Authors: Fram Brianna , Elder Alexandra , Namdari Surena
Published: November 2019

» The reported combined rates of intraoperative and postoperative periprosthetic humeral fractures range widely, from 1.2% to 19.4%.

» The risk factors for an intraoperative humeral fracture and literature-reported strength of association include a press-fit humeral component (relative risk [RR], 2.9), revision arthroplasty (RR, 2.8), history of instability (odds ratio [OR], 2.65), female sex (OR, 4.19), and posttraumatic arthritis (RR, 1.9). The risk factors for a postoperative humeral fracture include osteonecrosis and increased medical comorbidity index (OR, 1.27).

» Intraoperative fractures, in order of decreasing frequency, most often occur during implant removal in cases of revision arthroplasty (up to 81%), during reaming or broaching of the humerus (up to 31%), during trial or implant insertion (up to 18% to 19%), or because of excessive humeral torque or forceful retractor placement during exposure or reduction (up to 13% to 15%). Postoperative fractures typically occur from a fall onto the outstretched extremity or through an area of osteolysis.

» The treatment of intraoperative or postoperative fractures is based on fracture location, prosthesis type and stability, rotator cuff status, and available bone stock.

» Nonoperative treatment for periprosthetic humeral fractures appears to have high failure rates. When treating a periprosthetic humeral fracture operatively, surgical techniques for tuberosity fractures include suture repair, cerclage wiring, or revision to reverse components. For humeral shaft fractures, techniques include revision to a long-stem component, cerclage wiring, plate-and-screw fixation, and use of a strut allograft. For extensive humeral bone loss, techniques include component-allograft composites or humeral endoprostheses. All techniques have the goals of permitting early range of motion and preserving function.
The Environmentally Tendentious Factor of Subtance Users (A Case Study on The Reason of The Substance Users in The Context of Interpersonal Communication in Jakarta)
Authors: Rahman Nurlina
Published: November 2019

The purpose of research is to reveal the reason on how the substance users begin to use the substance (such as Narcotics, Alcohols, and other addictive substances), by understanding their environmental factor as one of the tendentious factors. The methodology used is the phenomenologic qualitative. The subjects are 16 people, who admitted using substance for the first time around the age of 10 to 16 years old, and one of them is using it since elementary school. The sampling technique used are the purposive and snow-ball sampling. The result of the research is to show on how substance abuse leads to addiction, supported by a tendentious factor, which is the environment, which triggers one to become a substance user. Hopefully, this research could give a better understanding for the society, especially for those who have been involved in the educational world or environment, so they can acknowledge the early symptoms of substance users, which has become a very concerning social phenomenon for Indonesian people, especially in Jakarta, as the capital city.
SUSTAINABILITY OF SCHOOL-BASED FOOD AID IN BAHI DISTRICT OF TANZANIA’S DODOMA REGION AFTER THE END OF WORLD FOOD PROGRAMME SUPPORT
Authors: Nemes Joyce Exusper
Published: November 2019

This study investigated the sustainability of school-based food drive after the phasing out of the World Food Programme (WFP) aid initiative in Bahi district of Dodoma region, Tanzania. The study found that none of the 72 public primary schools in Bahi district had managed to provide school lunch during the post-WFP by October 2017. Only 10 schools managed to provide porridge rather than full lunch to the pupils during the review period. The public primary schools under review were unable to sustain the School Food Programme due to the poor level of parental contributions, drought and widespread poverty. The study also found that parents complained about the school food programme lacking support within the national policy framework.  The study recommends the application of the Resource Dependency Theory to sustain the SFP and government’s intervention to boost agricultural production and empower the people to support their wards and the SFP at their wards’ school.
TEACHING STYLES AND EDUCATIONAL PHILOSOPHIES OF SECONDARY SCHOOL TEACHERS IN KANO METROPOLIS, NIGERIA
Authors: Jabbar Saheed Olanrewaju
Published: November 2019

The objective of the study was to examine the prevailing teaching style and educational philosophies of teachers in Kano metropolis, Nigeria, and to determine whether there was a relationship between the two variables. Descriptive survey research design was used in the conduct of the study. The population of the study consisted of a sample of 124 secondary school teachers in Kano metropolis. Robert Leahy Philosophic Inventory (1995) was adapted as data collection instrument. The data obtained were analyzed using percentage, mean, t-test and ANOVA. Findings of the study reveal that lecture method was the most frequently used teaching method by teachers while essentialism was the predominating educational philosophy of teachers. A moderate positive relationship exists between teachers’ preferred teaching style and their educational philosophies but no statistically significant difference was found in the teaching styles of the male and female teachers in Kano Metropolis. Similarly, there was no significant difference in teachers’ teaching styles with respect to their qualifications. Among other things, the study recommends continuous professional development of teachers through regular in-service training in order to equip them with modern and contemporary educational philosophies and teaching styles.
Concerns and Quality of Life of Cancer Survivors Across the Survivorship Trajectory
Authors: Chua Gek Phin , Ng Quan Sing , Tan Hiang Khoon , Ong Whee Sze
Published: November 2019

Background Survivors of cancer deal with a myriad of acute, chronic, and late effects of cancer and its treatment which can linger on for decades and inadvertently affect their quality of life (QOL). The aim of this study is to determine the main concerns of survivors at various stages of the cancer survivorship and to assess whether these concerns have any effect on their QOL. Methods A cross-sectional survey was conducted on cancer survivors diagnosed with colorectal, breast, lung, gynaecological, prostate or liver cancers who were seen at the National Cancer Centre Singapore between 11 April and 12 July 2017. Eligible study participants self-completed a questionnaire adapted from the Mayo Clinic Cancer Centre’s Cancer Survivors Survey of Needs.QOL was rated by participants on a scale of 0 – 10, with higher ratings denoting higher level of QOL. Results A total of 1107 cancer survivors filled in the questionnaire. The top 5 concerns among all survivors were cancer treatment and recurrence risk (51%), followed by long-term treatment effects (49%), fear of recurrence (47%), financial concerns (37%) and fatigue (37%). Cancer treatment and recurrence risk, long-term treatment effects and fear of recurrence were amongst the top concerns across the survivorship trajectory. Mean QOL was 7.3 on a scale of 0 – 10. Completed treatment patients had higher QOL score than the newly diagnosed and on treatment patients and the patients dealing with recurrence or second cancer patients. Predictors for QOL included the economic status and housing type of patients and whether patients were concerned with pain and fatigue. Conclusion This study confirms that cancer survivors in Singapore face multiple challenges and had various concerns at various stages of cancer survivorship, some of which negatively affect their QOL. It is critical to design patient care delivery systems that appropriately addresstheir key concerns at different stages of their cancer trajectory so as to enhance their coping skills throughout their cancer journey.
Comparative features of the mucous glands in the gastroduodenal junction in guinea pigs and chinchillas: microanatomy and histochemistry
Authors: Gal Adrian Florin , Rus Vasile , Andrei Sanda , Miclaus Viorel
Published: November 2019

Background: Mucous glands from the gastroduodenal junction are briefly represented by glandular cells in the stomach and by Brunner’s glands in the duodenum. The aim of the study was to describe the main histological/histochemical features of the gastroduodenal junction in guinea pigs and chinchillas. Results: The material was represented by tissue samples collected from the stomach and duodenum processed by paraffin technique. Histological sections were stained by Goldner’s trichrome stain, while mucous content was identified by Periodic acid–Schiff (PAS) stain (for neutral mucosubstances) and Alcian blue stain (for acid mucosubstances). In guinea pig, the pyloric glands were positive for both mucus types, whereas in chinchillas a low amount of mucin was identified. The Bruner glands, in guinea pigs displayed a weak reaction for the both mucin types. In chinchillas, the Bruner glands showed a significantly higher amount of PAS and Alcian blue-positives mucosubstances types. As observed, a higher amount of neutral mucus was identified in the pyloric glands in guinea pigs comparing to chinchillas. Contrariwise, chinchillas displayed a suggestively higher amount of mucus in Bruner glands comparing to guinea pigs. Conclusions: Concluding, this is the first report describing the comparative features of the mucous glands in the two rodents, with detailed histological and histochemical features.
Epidural filling with crystal-colloid solution prevented accidental dural- puncture-induced headache after cesarean section
Authors: Yu Jin , An Min , Yan Ya , Li Youchang , Liu Chaowen
Published: November 2019

Background: Post dural puncture headache (PDPH) is a common anaesthetic complication caused by spinal puncture or accidental dural puncture during intraspinal anesthesia operation. There is no panacea, either preventive or therapeutic for PDPH. Methods: This study retrospectively collected and analyzed data on the clinical features and outcomes of 20 puerperants with accidental dural punctures. Seventeen individuals received crystal-colloid solution fillers and three did not. Results: The average epidural catheter retaining time was 35.97 hours; the average frequency of epidural filling was 2.65 times, with an average volume of 65.88 ml per fill. One patient developed tinnitus and three complained of head swelling during filling. The average bed-stay was 72.65 hours, with intravenous infusion volume of 2308.82 ml per day in the first three postoperative days. Two patients complained of slight dizziness and mitigation, and five felt weak. One individual had intermittent headaches and dizziness till the seventh postoperative day. Conclusions: Epidural injection of crystal-colloid solution combined with hydration is an effective preventive strategy for PDPH after cesarean section based on this observational study.
Nicotine dependence and related factors among physicians: results from a cross-sectional survey in Estonia
Authors: Põld Mariliis , Pärna Kersti
Published: November 2019

Background
Smoking withdrawal can be difficult due to nicotine dependence (ND). Individual, environmental and social factors must be considered when researching ND. The objective of the present study is to describe ND and to analyse associations between ND and smoking-related and background factors among daily smoking Estonian physicians.
Methods
A cross-sectional postal survey was used to collect data from Estonian physicians in 2014. The initial sample consisted of all practising physicians in Estonia (n=5666). In total, 2939 physicians participated. The corrected response rate was 53.1%. The current study sample was restricted to physicians who smoked daily (n=171). The outcome variable was ND level, measured using the Fagerström Test for Nicotine Dependence (FTND). The mean age of smoking initiation was calculated, along with the standard deviation and the distribution of ND levels with 95% confidence intervals (CIs). T-tests and chi-square tests were used to test for differences between groups. To compensate for non-response, the data were weighted. Using multiple logistic regression, the association between ND level (at-least-moderate vs low) and smoking-related and background factors was determined. Crude and fully adjusted odds ratios (ORs) with 95% CIs were calculated.
Results
The mean FTND score for daily smoking physicians was 2.8±2.1, and 60.8% of them had low, 33.1% moderate and 6.1% high ND levels. The mean age of smoking initiation differed statistically between physicians with low and at-least-moderate ND levels (21.0±5.1 and 18.4±3.3, respectively) (p<0.001). In the adjusted model, having at least moderate ND levels was associated with a younger age of smoking initiation (OR=0.82, 95% CI 0.72–0.94). After adjustment, ND levels were not significantly associated with the desire to quit, motives to quit and gender. No association was found between ND level and other background factors.
Conclusions
More than half of daily smoking Estonian physicians had low ND levels. A higher ND level was associated with a younger age of smoking initiation. Knowledge of ND and related factors is useful in the development of smoking cessation counselling services for physicians.
Circulating microRNA-762 promotes colorectal cancer proliferation and invasion by upregulating the Wnt-1/β-catenin pathway
Authors: Lai Peng-Sheng , Chang Wei-Min , Chen Ying-Yin , Lin Yi-Feng , Liao Hui-Fen , Chen Chung-Yu
Published: November 2019

Background: A number of microRNAs (miRNAs) have been demonstrated to be associated with the diagnosis, progression and prognosis of colorectal cancer (CRC). However, the function of miRNA-762 (miR-762) in CRC remains unclear, and the molecular mechanisms underlying the effects of miR‑762 in CRC require further investigation.
Methods: The circulating miRNAs from BALB/c mice with CRC CT26 cell implantation were assayed by microarray. Then, miR-762 mimic and inhibitor were transfected to CT26 cells for analysis of cell viability, invasion, and epithelial-mesenchymal transition (EMT), cell cycle, and regulatory molecule expression. Human subjects were included for comparison the circulating miR-762 levels in CRC patients and control donors, as well as the patients with and without distant metastasis.
Results: The screening for miRNA levels in mice with CRC cell implantation indicated that plasma miR-762 was upregulated. Transfection of miR-762 mimic to CT26 cells increased cell viability, invasion, and EMT, whereas transfection of miR-762 inhibitor decreased the above abilities. Western blot analysis showed that miR-762 mimic transfection upregulated the expression of Wnt-1 and b-catenin, as well as increased the nuclear translocation of b-catenin. Further analysis showed that serum miR-762 levels in CRC patients were higher than in control donors. Among the CRC patients (n = 20), six patients with distant metastasis showed higher serum miR-762 levels than the patients without distant metastasis.
Conclusions: Circulating miR-762 could promote CRC disease development and progression through the Wnt/b-catenin signaling. miR-762 might be used as a biomarker for CRC diagnosis and targeted therapy.
THE INFLUENCE OF THE GAPS IN THE MECHANICAL TRANSMISSION OF THE REDUCER OF THE SWITCH ELECTRIC DRIVE
Authors: Buriak Serhii
Published: November 2019

Switch electric drives are one of the most important and responsible components of railway automation, and therefore require the development and implementation of advanced diagnostic systems. Achievement of the goal is possible only through the use of modern mathematical and software tools. There is a problem in the use of electric motors for switch electric drives today. The point is that the nature of the load on the engine is determined by the reducer. Deterioration appears on the reducer during operation. The appearance of gaps between the gears causes the instability of the load on the shaft. Measurements and control of the size of the gaps is not performed. To solve this problem, it is proposed to use linear measurement of the gaps of the gears and further modelling of the reducer. This method will allow to determine the arising load fluctuations by the deviation of the angular velocities of rotation of the drive and driven shafts. The effect of the gaps on the system operation is shown by model in the form of transfer functions of the constituent elements and the system of equations. It will be possible to set limit values for the deterioration of the gears of the reducer by the determination the maximum deviation of shafts angular speeds of rotation in order to take measures in advance for their timely replacement and to keep the engines from excessive load.
DESIGN OF DETECTOR OF INTERNAL COMBUSTION ENGINE’S CRANKSHAFT TORSIONAL VIBRATIONS BASED ON ACCELEROMETER METHOD
Authors: Veretennik Oleksander , Kardashev Dmitry , Aboleshkin Sergey
Published: November 2019

Detector of internal combustion engine’s crankshaft torsional vibrations based on accelerometer method is designed. It consists of a measuring and transmitting part, which is mounted on the crankshaft of a diesel engine or the propeller shaft of a vessel and a receiving and recording part placed remotely. The measuring and transmitting parts of detector is easily mounted on area of the shaft of the vessel important for the measurement, which are difficult to access for other methods of vibration measuring. It allows directly in real time to measure the tangential accelerations of the shaft without interfering in the propulsion unit work. Carrying out such measurements allows to control the arising torsional stresses and signalling the excess of their safety limit. The measurement results of engine's pulsations of rotation of the crankshaft, arising during operation, allow to watchkeeping engineer to analyze the quality of the working process of each engine’s cylinder in real time and at different operating modes of the vessel. This analysis makes it possible to assess the technical condition of the engine’s parts and assemblies (cylinder liner, piston, o-rings), the quality of the fuel equipment of the diesel engine and, in general, allows to control the technical condition of the entire engine.
A Gênese Doutrinária do Direito Espacial como Insurgente Ramificação do Direito Internacional Público durante a Guerra Fria
Authors: dde Oliveira Arguelhes Delmo , Freitas Palma Rodrigo , Akiyoshi Gomes Sukiyama Arêdes Rodrigo
Published: November 2019

O presente artigo objetiva estabelecer os marcos históricos doutrinários que contribuíram para o aprimoramento do Direito Espacial durante a Guerra Fria. Ainda nesse contexto, analisa-se o desenvolvimento dos principais diplomas legais que foram responsáveis pela construção do arcabouço jurídico da referida ramificação do Direto Internacional Público, avaliando, ainda, as perspectivas e desafios presentes nesse mesmo cenário.
A Disputa Global por Recursos Energéticos Oceânicos e sua Repercussão na Geopolítica Mundial da Energia
Authors: Pacheco de Campos Brozoski Fernanda
Published: November 2019

No presente artigo, sublinhamos a ascensão geopolítica dos recursos oceânicos no esperado cenário de crescimento da demanda mundial por energia, de transformações da matriz energética global e de acirramento dos conflitos resultantes da disputa pelo controle das principais rotas de navegação internacional. O intuito é expor um quadro geral da geopolítica global da energia no qual possamos visualizar o potencial de aproveitamento de nossas abundantes riquezas marítimas e perceber possíveis implicações da projeção de interesses externos sobre tais recursos. Julgamos, assim, contribuir com a identificação de questões relevantes a serem incorporadas às políticas marítimas, externas e de Defesa e Segurança de nossa região.
O encontro da Guerra Cibernética com as Guerras Eletrônica e Cinética no Âmbito do Poder Marítimo
Authors: Oliveira de Sá Alan , Santos Machado Raphael Carlos , Nunes Almeida Nival
Published: November 2019

A busca por melhores capacidades operacionais e gerenciais no Poder Marítimo tem motivado o aumento do uso de sistemas híbridos, em que componentes cibernéticos interagem com plantas físicas e com sensores/dispositivos que exploram o espectro eletromagnético. Entretanto, ao mesmo tempo em que esta integração traz vantagens, ela também expõe tais sistemas a novas ameaças, resultantes do encontro da guerra cibernética com as guerras eletrônica e cinética. O presente artigo analisa como estas novas ameaças podem afetar o Poder Marítimo, caracterizando, por meio de exemplos, seus possíveis alvos. Para dar suporte a esta discussão, propõe-se uma taxonomia que abarca novas classes de ataque que exploram os domínios cibernético, eletrônico e cinético. A análise aponta para a necessidade de políticas capazes de promover a segurança dos sistemas cibernéticos do Poder Marítimo. Neste viés, são discutidas políticas de qualificação de pessoal e de homologação e certificação de produtos cibernéticos, ambas com o potencial de contribuir de forma abrangente para a segurança do Poder Marítimo
The Effect of Photovoice on Speaking Skills at the Secondary School Level
Authors: Hidayat Rifqi Aziz , Rofiudin Rofiudin , Sulistianingsih Endang
Published: November 2019

The students need to be fluent in speaking to express their ideas and what they think in their minds also to communicate with others. As a matter of fact, speaking using Bahasa is not a big deal for students since it is their mother tongue, but as they have to speak in English, it becomes a big problem.  They can’t imagine what they want to speak, they are afraid and unconfident if they try to speak English. Therefore the teacher should provide the students' motivation to speak up and use the appropriate method in teaching speaking. Photovoice is a suitable method using a camera for supporting the process of teaching-learning. The purpose of the study is to identify the effect of using Photovoice on speaking skills at the secondary school level. We used a speaking test to complete and process the data. The participants of the study were the students at the secondary level. The outcome of the study revealed that the students who taught using Photovoice had better skills in speaking English than the students who were not taught using Photovoice. Through this method, the students become interested and active during the study. They seemed to enjoy and excited about an exhibition or presentation.
Cause analysis for a new type of devastating flash flood
Authors: Hou Jingming , Li Bingyao , Tong Yu , Ma Liping , Ball James , Luo Hui , Liang Qiuhua , Xia Junqiang
Published: November 2019

This work introduces an unprecedented flash flood that resulted in nine casualties in Shimen Valley, China, 2015. Through field survey and numerical simulation the causes of the disaster are systematically analyzed, finding that the intense storm, terrain features, and the large woody debris (LWD) played important roles. The intense storm induced fast runoff and, in turn, high discharges as a result of the steep catchment surfaces and channels. The flood flushed LWD and boulders downstream until blockage occurred in a contraction section, forming a debris lake. When the debris dam broke, a dam break wave rapidly propagated to the valley mouth, washing people away. After considering the disaster-inducing factors, measures for preventing similar floods are proposed. The analysis presented herein should help others manage flash floods in mountain areas.
Impact of mixing intensity on dissolved oxygen half-velocity constants in a sidestream deammonification environment
Authors: Xie Biao , Jin Chao , Parker Wayne J.
Published: November 2019

A partial nitritation/anammox (PN/A) process was operated at two different mixing intensities to quantify the extent to which diffusional limitations impact process rates. At a steady-state operation, the total inorganic nitrogen removal efficiency in the bench-scale sequencing batch reactors was found to increase as mixing intensity decreased (62 and 84% for average velocity gradient (G) values of 15 and 5.3 s−1, respectively). The half-velocity constants with respect to bulk-phase dissolved oxygen (DO) concentration for ammonia-oxidizing bacteria (AOB) and anaerobic ammonium-oxidizing (anammox) organisms were estimated on the basis of nitrogen removal rates that were observed in activity tests. The activity tests were conducted over a range of bulk-phase DO concentrations. The best-fit values were estimated to be 0.68 ± 0.34 and 0.54 ± 0.56 mg O2/L for G values of 15 and 5.3 s−1, respectively. The AOB values were not statistically different (p = 0.19) between mixing conditions which were consistent with AOB dominating the surface of granules. The best-fit values were estimated to be 0.13 ± 0.09 and 0.55 ± 0.40 mg O2/L for G values of 15 and 5.3 s−1, respectively, and were statistically different . The results demonstrated that mixing conditions should be considered when designing PN/A processes and provide quantitative results that can be employed to improve models of these processes.

This article has been made Open Access thanks to the kind support of CAWQ/ACQE (https://www.cawq.ca).
Control of halophenol formation in seawater during chlorination using UV/TiO2 pre-treatment
Authors: Ding Ning , Yin Xiufeng , Yang Zhe , Sun Yingxue
Published: November 2019

Seawater is a valuable water resource in coastal regions. However, during seawater chlorination, a group of halophenols (HPs) may be formed. These HPs have lower odor and taste detection thresholds than other disinfection by-products (DBPs), however these are usually more toxic than most of the abundantly detected DBPs. Hence, an effective approach for control of HP formation during seawater chlorination is required to minimize highly toxic HP formation. Pretreatment using TiO2 photocatalysis was applied in this study to assess its ability for removal of HP precursors. Seawater samples with external addition of 1 mg/L phenol were spiked with TiO2 from 0.1 to 10.0 g/L and exposed under UV light for 2 to 120 min. The UV absorbance at 254 nm and the excitation–emission matrix fluorescence of dissolved organic matter were measured for each treated sample. It was observed that the optimal treatment condition to achieve the highest UV254 removal was 4.0 g/L TiO2 with UV exposure of 30 min. By pretreatment using this method and stated dose and exposure, only two types of HPs were detected during chlorination, compared with four types of HPs formed in the untreated samples. Moreover, the pretreatment greatly reduced the concentration of 2,4,6-TBP from more than 400 μg/L to less than 1 μg/L. The significance of this research study is to identify the effectiveness of UV/TiO2 in reducing DBP formation by analyzing the mechanisms during the process, which indicates the use of UV/TiO2 pretreatment for control of HP formation in seawater during chlorination.
Multi-Scale Modeling in Drug Discovery Against Infectious Diseases
Authors: Speck-Planche Alejandro
Published: November 2019

This work discusses the idea that drug discovery, instead of being performed through a series
of filtering-based stages, should be viewed as a multi-scale optimization problem. Here, the most
promising multi-scale models are analyzed in terms of their applications, advantages, and limitations in
the search for more potent and safer chemicals against infectious diseases. Multi-scale de novo drug
design is highlighted as an emerging paradigm, able to accelerate the discovery of more effective antimicrobial
agents.
Metal-Free Synthesis of Pyrimidinone Derivatives via Biginelli Reaction Using Aqueous NaICl2
Authors: Hatvate Navnath T. , Ghodse Shrikant M. , Mundlod Krishna N. , Telvekar Vikas N.
Published: November 2019

Metal-free synthesis of pyrimidinone (alky/aryl) via Biginelli reaction in the presence of
aqueous sodium dichloroiodate (NaICl2) was studied under reflux conditions. Herein, we first time report
the synthesis of the aliphatic Biginelli product by using aliphatic aldehyde, cyclopentane, and urea.
Several aromatic and heteroaromatic aldehydes were studied for the confirmation of the wide applicability
of aq. NaICl2 for the synthesis of corresponding Biginelli products. The obtained desired products
provide good to excellent yield.
Evaluation of LVDD by CCTA with Dual-source CT in Type 2 Diabetes Mellitus Patients
Authors: Huang Zengfa , Xiao Jianwei , Li Zuoqin , Hu Yun , Xie Yuanliang , Zhang Shutong , Wang Xiang
Published: November 2019

Background:

Left ventricular diastolic dysfunction (LVDD) is a common abnormality
among patients in T2DM.

Aim:

We aimed to evaluate the feasibility of coronary computed tomography angiography
(CCTA) for the assessment of LVDD in type 2 diabetes mellitus (T2DM) patients.

Methods:

80 consecutive T2DM patients who were referred for a clinically dual-source CCTA
examination to evaluate suspected coronary artery disease and also underwent 2D echocardiography
within 7 days of CCTA inclusion and exclusion criteria, were performed. Correlation between
CCTA and echocardiography was tested through linear regression and Bland-Altman analysis.

Results:

In total, 60 T2DM patients were included for the analysis. Pearson correlation showed
good correlation for E (r = 0.28; P = 0.028), E/A (r = 0.69; P < 0.01); E (r = -0.06; P = 0.776),
E/A (r = 0.54; P = 0.003) and E (r = 0.64; P < 0.01), E/A (r = 0.83; P < 0.01) in three groups, respectively.
Overall, diagnostic accuracy for assessment in CCTA of diastolic dysfunction was
79.76% (95% CI: 68%-91%), 71.43% (95% CI: 58%-85%) and 87.50 (95% CI: 79%-96%) in
three groups.

Conclusion:

The presented study proved that CCTA showed good correlations in the estimation
of LV filling pressures compared with echocardiography in T2DM patients. Accordingly, retrospectively
ECG-gated CCTA may provide valuable information on the evaluation of LVDD in
T2DM patients.
Automated Diagnostic Hybrid Lesion Detection System for Diabetic Retinopathy Abnormalities
Authors: Bhardwaj Charu , Jain Shruti , Sood Meenakshi
Published: November 2019

Background:

Early diagnosis, monitoring disease progression, and timely treatment of
Diabetic Retinopathy (DR) abnormalities can efficiently prevent visual loss. A prediction system
for the early intervention and prevention of eye diseases is important. The contrast of raw fundus
image is also a hindrance in effective manual lesion detection technique.

Methods:

In this research paper, an automated lesion detection diagnostic scheme has been proposed
for early detection of retinal abnormalities of red and yellow pathological lesions. The algorithm
of the proposed Hybrid Lesion Detection (HLD) includes retinal image pre-processing,
blood vessel extraction, optical disc localization and detection stages for detecting the presence of
diabetic retinopathy lesions. Automated diagnostic systems assist the ophthalmologists practice
manual lesion detection techniques which are tedious and time-consuming. Detailed statistical
analysis is performed on the extracted shape, intensity and GLCM features and the optimal features
are selected to classify DR abnormalities. Exhaustive statistical investigation of the proposed
approach using visual and empirical analysis resulted in 31 significant features.

Results:

The results show that the HLD approach achieved good classification results in terms of
three statistical indices: accuracy, 98.9%; sensitivity, 97.8%; and specificity, 100% with significantly
less complexity.

Conclusion:

The proposed technique with optimal features demonstrates improvement in accuracy
as compared to state of the art techniques using the same database.
Optimization and Analysis of Structure about Lifting Device of Logistics Sorting
Authors: Zhao G , Tiba Zsolt , Menyhárt József
Published: November 2019

The lifting device of a logistics sorting machine needs high frequency upward and downward reciprocating motion therefore the cutting fork arms and matching parts of the shaft are often worn out. In this paper the problem of the shear fork types applied for the lifting mechanism is studied at first. Then the advanced numerical simulation software ANSYS adopted for the lifting mechanism of the shear fork type, and the means of virtual simulation is introduced. Hence the possible location of faults and fault modes are analysed. Then improving measures about the lifting mechanism of the logistics sorting machine are suggested.
Latinidad, tradición clásica y nova ratio en el Imperial Colegio de la Santa Cruz de Santiago Tlatelolco
Authors: Téllez Nieto Heréndira
Published: November 2019

This article offers a new perspective on the Colegio de Santa Cruz in Tlatelolco. On the one hand, it studies hitherto inedited sources and manuscripts; on the other, it reinterprets some well-known facts. I will highlight the main purpose of the Colegio in Tlatelolco and the development of the courses taught there, particularly those based on the nova ratio nebrisensis. Indeed, for friars arriving to the New World, the example of the universities and colegios where they had studied themselves was the one they were most familiar with. The cornerstone of these studies were the pedagogical reforms by the Spanish humanist Elio Antonio de Nebrija, which they followed closely for their grammatical and didactic ideas. Nebrija was considered the main representative of the Spanish Catholic humanism favoured by the Crown. In this article, I will analyse traces of this nova ratio in the works of the friars and students of the Colegio in Tlatelolco.
Assessing Feasibility of an Early Childhood Intervention Using Mobile Phones Among Low-Income Mothers of Newborns: Qualitative Interview Study (Preprint)
Authors: Zhang Donglan , Jin Lan , Liang Di , Geng Ruijin , Liu Yun , Ling Yu , Jiang Fan , Zhang Yunting
Published: November 2019

BACKGROUND

Many children aged younger than 5 years living in low- and middle-income countries are at risk for poor development. Early child development (ECD) programs are cost-effective strategies to reduce poverty, crime, school dropouts, and socioeconomic inequality. With the spread of low-cost mobile phones and internet access in low- and middle-income countries, new service delivery models such as mobile phone–aided interventions have a great potential to improve early childhood development.

OBJECTIVE

This study aimed to identify the beliefs on importance of ECD, feasibility of a proposed intervention using mobile phones and factors that may affect the usability of the intervention among mothers of newborns in a poverty-stricken area in southwestern China.

METHODS

We conducted an in-depth, semistructured interview study of 25 low-income mothers of newborns recruited from two county hospitals in Yunnan Province. We applied the health belief model and cultural competence theories to identify the facilitators, barriers, and preferences among the target population for parenting knowledge.

RESULTS

The results showed that the participants had low health literacy and high perceived needs for learning ECD knowledge. At the same time, they experienced several barriers to learning parenting information and following evidence-based instructions including having limited time, limited financial resources, and different opinions on childcare among family members. Many participants preferred to receive personalized messages tailored to their specific needs and preferred videos or graphics to text only in the messages. Many favored a separate module to support postpartum mental health.

CONCLUSIONS

The study assessed the acceptability of an early childhood intervention using mobile phones to meet the needs of the target population based on their beliefs, traits, and preferences and provided suggestions to refine the intervention to improve its usability.
Images acquisition of multiphase dispersions in fermentation processes
Authors: Taboada B. , Larralde P. , Brito T. , Vega-Alvarado L. , Dí­az R. , Galindo E. , Corkidi G.
Published: November 2019

Multiphase mixing is a common operation in fermentation process. However, one of the main problems for online automatic monitoring of dispersions occurring in microbial cultures in a mechanically stirred bioreactor, is the difficulty in acquiring images (in motion) clear enough to characterize its elements (mainly air, water, oil and biomass) and their interactions during cultivation. Once the images to be analyzed have been acquired, other problems arise related to the complexity and diversity of objects/artifacts captured in the visual field. The heterogeneous transparency of some objects, low contrast and similarity between different classes of objectsÂ are, among others, major problems for the automation of image analysis procedures. The purpose of this work is to present a system that allows the on-line acquisition of images inside a mechanically stirred tank.The images are digitally obtained by connecting a TV camera to a stereomicroscope. The scanning of the camera is synchronized to the flashing of a stroboscope, which acts as the light source and is equipped with a submergible probe. These illumination conditions allow obtaining high quality images that can be further analyzed to quantify size distributions of air bubbles and oil drops in multiphase dispersion, and to observe the dynamics of phase interactions (solid, liquid and gaseous) in a model culture.
Valuation of Ground Penetrating Radar for the record of structures in fluvio lacustrine soils
Authors: Rangel D. , Carreón D. , Cerca M. , Méndez E.
Published: November 2019

In this work, the response of Ground Penetrating Radar (GPR) to geological characteristics of fluvio-lacustrine soils is analyzed. GPR method is a very useful tool for structural studies of the geological media because it provides continuous profiles from the subsoil (radargrams). The identification of thin geological structures in the radar profiles allowed the evaluation of the detection capacity of the GPR Zond 12c for stratigraphical purposes. Its detection capacity depends on the achieved depth of penetration and resolution, on the transmitted wave frequency, and of the system used for acquisition and processing of the signals. The prospecting principle is based on the emission and reception of short electromagnetic pulses that are reflected by electric discontinuities related to physical or structural properties of the ground.