bluuebunny/crossref_metadata_2025 huggingface dataset:
La política filosófica de J.S. Mill
Authors: Rosen Frederick
Published: June 2017

Este artículo se centra en las Consideraciones sobre el Gobierno Representativo y en el aparente abandono que llevaría a cabo John Stuart Mill en esta obra de su radicalismo.Las Consideraciones son un importante trabajo que desafía a la mayoría de los tratados de política, dejando a un lado toda explicación fundacional de la sociedad política, incluso la utilitarista.La metodología de las Consideraciones se centra, sorprendentemente, en la evaluación del papel de la virtud en la vida de las personas, así como en la defensa de la importancia de la idea de “carácter activo”.Finalmente, se analizan en este trabajo la sposiciones millianas en las Consideraciones sobre un “amplio número de aspectos del Gobierno popular”: el voto secreto, la elección y destitución popular de los jueces, latirnaía de las mayorías, el sufragio universal, así como la posibilidad de una política regresiva aún dentro de un gobierno representativo.
Lehren aus dem Zusammenbruch des Marktes für sog. Mittelstandsanleihen
Authors: Florstedt Tim
Published: June 2017

Der Beitrag stellt den Aufstieg und Fall des deutschen Marktes für sog. Mittelstandsanleihen zwischen 2010 und 2014 dar und unternimmt es, nach einem Anpassungsbedarf des geltenden Rechts zu fragen. Nach Ansicht der Bundesregierung gibt es einen solchen Bedarf nicht. Der Beitrag bezieht zu dieser Aussage kritisch Stellung und weist auf eine bislang unzureichende Problemanalyse und eine Reihe wichtiger Folgefragen hin.
Clinicians’ Perceptions of Screening for Food Insecurity in Suburban Pediatric Practice
Authors: Palakshappa Deepak , Vasan Aditi , Khan Saba , Seifu Leah , Feudtner Chris , Fiks Alexander G.
Published: June 2017

BACKGROUND:

National organizations recommend pediatricians screen for food insecurity (FI). Although there has been growing research in urban practices, little research has addressed FI screening in suburban practices. We evaluated the feasibility, acceptability, and impact of screening in suburban practices.

METHODS:

We conducted a mixed methods study that implemented FI screening in 6 suburban pediatric primary care practices. We included all children presenting for either a 2-, 15-, or 36-month well-child visit (N = 5645). Families who screened positive were eligible to be referred to our community partner that worked to connect families to the Supplemental Nutrition Assistance Program. We conducted focus groups with clinicians to determine their perceptions of screening and suggestions for improvement.

RESULTS:

Of the 5645 children eligible, 4371 (77.4%) were screened, of which 122 (2.8%) screened positive for FI (range: 0.9%–5.9% across practices). Of the 122 food-insecure families, only 1 received new Supplemental Nutrition Assistance Program benefits. In focus groups, 3 themes emerged: (1) Time and workflow were not barriers to screening, but concerns about embarrassing families and being unable to provide adequate resources were; (2) Clinicians reported that parents felt the screening showed caring, which reinforced clinicians’ continued screening; (3) Clinicians suggested implementing screening before the visit.

CONCLUSIONS:

We found it is feasible and acceptable for clinicians to screen for FI in suburban practices, but the referral method used in this study was ineffective in assisting families in obtaining benefits. Better approaches to connect families to local resources may be needed to maximize the effectiveness of screening in suburban settings.
Practical Implementation of Anticoagulation Strategy for Patients Undergoing Cardioversion of Atrial Fibrillation
Authors: Goette Andreas ,   St Vincenz Hospital Paderborn, Paderborn, Germany, Heidbuchel Hein ,   Antwerp University Hospital, University of Antwerp, Antwerp, Belgium
Published: June 2017

Anticoagulation is routinely prescribed to patients with persistent AF before cardioversion to reduce the risk of thromboembolic events. As direct oral anticoagulants (DOACs) have a rapid onset of action, a consistent anticoagulant effect, if taken correctly, and do not need monitoring or dose adjustments, there is considerable interest in their use for patients with AF undergoing cardioversion. Post-hoc analyses show that DOACs are safe to use prior to and following cardioversion. In addition, two randomised controlled trials, X-VeRT and ENSURE-AF, have demonstrated the efficacy and safety of the DOACs rivaroxaban and edoxaban, respectively, in this setting. The use of DOACs allows cardioversions to be performed promptly and reduces the number of cancelled procedures compared with the use of warfarin.
Javaslat a hazai láptalajok osztályozásának megújítására
Authors: Michéli Erika , Fuchs Márta , Tóth József Attila , Csorba Ádám , Szegi Tamás
Published: June 2017

A szerves talajok összetétele, képződési körülményei, és földrajzi, ill. domborzati elterjedése jelentősen eltér az ásványi talajokétól. A tömegükben megőrzött hatalmas mennyiségű szerves szén és környezetük biológiai sokfélesége (biodiverzitása) kapcsán a klímaváltozás által leginkább érintett talajok, ezért megkülönböztetett figyelem irányul e talajokra. Kiterjedésükre, lebomlottsági fokukra, szerves szénkészletükre igen eltérő irodalmi és térképi adatok állnak rendelkezésre. Ugyanakkor éppen a klímaváltozás vonatkozásában óriási a globális és helyi megbízható adatigény az említett kérdésekben. Hazai láptalajaink osztályozási, felvételezési és mintavételi módszereinek megújítására teszünk javaslatot a nemzetközi standardok figyelembe vételével. A megújított Láptalaj meghatározásban a legfontosabb követelmények a 20% szerves széntartalomra, a 40 cm vastagságra és az alacsony térfogattömegre vonatkoznak. Az altípus és változati tulajdonságok a lebomlottság fokát, a mélységi, kémhatás viszonyokat, ill. sók jelenlétét adják meg. A szervesanyag meghatározásra az izzítási veszteség módszerét, a térfogattömeg meghatározás mintavételezésére a rostosság függvényében a lápfúró alkalmazását vagy feltárt szelvényből nagytérfogatú bolygatatlan mintákat javasolunk.
PERMAINAN “KIMIA KOTAK KATIK” SEBAGAI MEDIA PEMBELAJARAN PADA MATERI SISTEM PERIODIK UNSUR
Authors: Hidayah Rusly , Suprianto Suprianto , Rahmawati Alis
Published: June 2017

Penelitian yang dilakukan bertujuan untuk mendiskripsikan tingkat kelayakan permainan “kimia kotak katik” ditinjau  dari isi dan kontruksi serta untuk mengetahui peningkatan hasil belajar siswa  pada materi Sistem Periodik Unsur. Sasaran penelitian ini adalah 12 orang siswa SMA Muhammadiyah 1 Gresik. Rancangan penelitian menggunakan desain One Group Pretest-Postest. Hasil analisis data menunjukan bahwa permainan ini layak digunakan sebagai media pembelajaran dengan presentase kelayakan sebesar 83,33%.  Ketuntasan hasil belajar siswa mencapai 75%. Berdasarkan hasil uji coba, permainan kimia kotak katik layak untuk diterapkan untuk pembelajaran kimia.
STUDI KOMPARASI HASIL BELAJAR KIMIA MENGGUNAKAN MEDIA LKM DAN TTS MELALUI IMPLEMENTASI MODEL PEMBELAJARAN KOOPERATIF SMALL GROUP DISCUSSION (SGD)
Authors: Asmaningrum Henie Poerwandar
Published: June 2017

Penelitian ini bertujuan untuk mengetahui efektivitas penggunaan media Teka-Teki Silang (TTS) dibanding Lembar Kerja Mahasiswa (LKM) pada pembelajaran kooperatif Small Group Discussion (SGD) terhadap hasil belajar materi Perkembangan Teori Atom mahasiswa Jurusan Teknik Sipil Semester I Tahun Ajaran 2016/2017. Penelitian ini menggunakan metode penelitian eksperimen. Populasi dalam penelitian ini adalah semua mahasiswa Jurusan Teknik Sipil Semester I Tahun Ajaran 2016/2017. Teknik pengumpulan data dengan teknik tes, dokumentasi, dan observasi. Uji prasyarat analisis untuk mengetahui apakah data berdistribusi normal atau tidak menggunakan uji normalitas. Teknik analisis data yang digunakan adalah uji-t dua pihak. Hasil penelitian menunjukkan terdapat perbedaan hasil belajar Perkembangan Teori Atom mahasiswa Jurusan Teknik Sipil dimana thitung > ttabel, yaitu 3,79>2,00. Rata-rata nilai hasil belajar dengan menggunakanmedia TTS adalah 81,71 dan nilai rata-rata nilai hasil belajar dengan menggunakanmedia LKM adalah 75,29. Kesimpulan dari penelitian ini adalah penggunaan media TTS pada model pembelajaran kooperatif SGD lebih efektif untuk meningkatkan hasil belajar mahasiswa Jurusan Teknik Sipil Semester I Tahun Ajaran 2016/2017 dibanding media LKM pada materi Perkembangan Teori Atom.
Roles of Gate-Oxide Thickness Reduction in Scaling Bulk and Thin-Body Tunnel Field-Effect Transistors
Authors: Chien Nguyen Dang , Anh Dao Thi Kim , Shih Chun-Hsing
Published: June 2017

Tunnel field-effect transistor (TFET) has recently been considered as a promising candidate for low-power integrated circuits. In this paper, we present an adequate examination on the roles of gate-oxide thickness reduction in scaling bulk and thin-body TFETs. It is shown that the short-channel performance of TFETs has to be characterized by both the off-current and the subthreshold swing because their physical origins are completely different. The reduction of gate-oxide thickness plays an important role in maintaining low subthreshold swing whereas it shows a less role in suppressing off-state leakage in short-channel TFETs with bulk and thin-body structures. When scaling the gate-oxide thickness, the short-channel effect is suppressed more effectively in thin-body TFETs than in bulk devices. Clearly understanding the roles of scaling gate-oxide thickness is necessary in designing advanced scaled TFET devices.
MEIOFAUNA IN THE MANGROVE – SHRIMP FARMS PONDS, CA MAU PROVINCE
Authors: Thai Tran Thanh , My Yen Nguyen Thi , Tho Nguyen , Quang Ngo Xuan
Published: June 2017

Meiofaunal communities in the mangrove – shrimp farms system (MSFS) of Ca Mau province was investigated in 8 ponds (Tam Giang Commune, Nam Can District). Results showed that the meiofauna, especially nematodes at the Tam Giang’s MSFS in Ca Mau mangrove express high densities and biodiversity and nematodes dominate numerically in the mangrove meiofauna (73.69 to 96.2 %). In total, 15 major taxa were found with the dominant taxa belonged to three dominant groups: Nematodes, Copepoda, and Rotifera. The densities of meiofauna ranged from 287 ± 132.9  to 3129 ± 1388.6 inds.10 cm-2. Seventy fifth nematode genera belonging to 24 families with the most important typifying genera were Terschellingia, Daptonema, Parodontophora, Ptycholaimellus, Sabatieria, Hopperia, Anoplostoma, Pseudolella, Gomphionema. The mangrove – shrimp farms system in the study area was characterized by homogeneity and stabilization.
NOVEL COMPACT DUAL-BROADBAND PLANAR METAMATERIAL ANTENNA
Authors: Dinh Dang Nhu , Phuong Huynh Nguyen Bao , Liem Dinh Thanh , Chi Hoang Phuong , Chien Dao Ngoc
Published: June 2017

This paper proposes a novel uni-planar dual-band antenna using Composite Right Left Handed (CRLH) transmission line (CRLH-TL). Proposed antenna is designed based on the fringing effects of metamaterials and combined with coplanar waveguide (CPW) feeding in order to create two frequency bands for WLAN applications at the 2.4 and 5.5 GHz bands. Principle of gradual transform is applied to the antenna for extending the resonance frequency ranges. Optimized metamaterial antenna are fabricated and measured. Measurement results showed that the antenna operates in two broad frequency ranges spreading from 1.8 to 3.62 GHz and from 4.85 to 7.52 GHz with very compact overall dimensions of 18 mm × 16 mm (0,147 λ0 × 0.13λ0).
AMMONIUM TRANSPORT EXPERIMENTS IN SOIL COLUMNS: ESTIMATING TRANSPORT PARAMETERS
Authors: Trang Nguyen Thi Minh , Hong Le Dinh , Tri Vo Khac
Published: June 2017

Soluble contaminant transport into groundwater aquifers is one of the current  practical problems occuring not only in Vietnam but also in many countries around the world. In this paper, according to the main objective of estimating the ammonium (NH4+) transport parameters in soil and groundwater aquifer of  Con Son Island - District Con Dao, experiments with conservative tracers (sodium chlorides) and ammonium chlorides solution had been carried out on the Con Son soil columns. The transport parameters are estimated under supportting of software Hydrus 1D using the inverse parameter estimation method. Results of the experiments showed that dispersion coefficient, distribution coefficient and mass transfer coefficient characterized the ammonium transport process in the Con Son soil and aquifers are compatible with mechanical and physical properties of Con Son soil matrix and porous media.
Kierunki badań w homiletyce polskiej na podstawie zawartości Bibliografii homiletycznej
Authors: Szewczyk Leszek
Published: June 2017

Baza bibliograficzna pozwala każdemu poszukującemu zlokalizować poszukiwane książki, dysertacje, artykuły, streszczenia i recenzje. Jest cennym źródłem informacji o publikacjach ukazujących się w ramach danej dyscypliny naukowej. Dotyczy to zwłaszcza stale aktualizowanych bibliografii elektronicznych. Celem niniejszego opracowania jest prezentacja kierunków badań w homiletyce polskiej na podstawie zawartości elektronicznej Bibliografii homiletycznej. Bibliografia homiletyczna w latach 2006–2015 wzbogaciła się o 800 dodanych opracowań dotyczących zagadnień homiletycznych. W najnowszych publikacjach homileci polscy realizują wiele postulatów wysuwanych w stosunku do nich. Wskazują na priorytetową rolę homilii w przepowiadaniu słowa Bożego, akcentują mistagogiczny wymiar homilii. Szeroko omawiane są zagadnienia z zakresu homiletyki formalnej, zwłaszcza zaś retorycznego wymiaru przepowiadania.
Rola elementów regionalnych w wybranych homiliach księdza Józefa Tischnera
Authors: Godawa Marcin
Published: June 2017

W swoich homiliach głoszonych pod Turbaczem ks. Józef Tischner wielostronnie wykorzystuje potencjał gwary i kultury góralskiej w procesie duszpasterskiej perswazji przyjmującym formę medytacyjnego oddziaływania. Elementy regionalne tworzą pogłębiony kod komunikacji, w który zostają włączone wątki ogólnego, bardziej powszechnego duskursu ideowego. Fortunne rozwiązania, zwłaszcza wkomponowanie pojęć regionalnych jako miejsc wspólnych niosących w sobie zapis doświadczenia w kontekst nauki chrześcijańskiej, służą dojrzałemu kształtowaniu postaw wiernych. Osiągnięcia Tischnera pozostają ważnym punktem odniesienia w dyskusji o inkulturacji Ewangelii.
Effect of sintering conditions on perovskite lithium-based ion conductor
Authors: Lu Xiaojuan , Yang Dongyu
Published: June 2017

Perovskite lithium-based ion conductors, Li0·33La0·56TiO3, were prepared by the solid-state reaction method. Various sintering temperatures and dwelling times were used to study their effects on the ionic conductivity. Scanning electron microscopy was carried out to study the microstructures, and electrochemical impedance spectroscopy was used to measure the ionic conductivity and transference number. The lithium ion transference numbers of the samples prepared in this study were all close to one. In certain range, a longer dwelling time was beneficial to the ionic conductivity, but the trend with dwelling time was not linear. A 12h-dwelling was found to be the best condition. A higher sintering temperature normally resulted in a dense morphology, which is definitely beneficial to the ionic conductivity. However the combination of higher temperature and longer dwelling time did not yield a better performance, which indicated that the influence of sintering conditions is far more complicated; therefore, optimal sintering conditions should be selected in specific situations.
Breakout shear strength of cast-in-place anchors using shaking table tests
Authors: Park Yong Myung , Kim Tae Hyung , Kim Dong Hyun , Kang Choong Hyun , Lee Jong-Han
Published: June 2017

The concrete breakout shear strength of stirrup-reinforced cast-in-place anchors during earthquakes was experimentally evaluated. Uncracked and cracked concrete specimens were manufactured using M36 anchors reinforced with D10 stirrups (spacing, 100 mm; edge distance, 180 mm). Shaking table tests were performed to assess the dynamic strength of the reinforced anchors using the Northridge seismic wave. The experimental results showed that the dynamic shear resistance was slightly higher than the static shear resistance due to the strain rate effect of the material. In addition, Etag 001, which is based on the resistance of concrete, and ACI 318, which accounts for the resistance of concrete or steel reinforcement to evaluate the strength of the reinforced anchors, yielded conservative values for the static and dynamic shear strengths of the stirrup-reinforced anchors. An appropriate method that can account for both concrete and stirrup resistance to evaluate the design shear strength of stirrup-reinforced anchors under earthquakes is proposed.
The Impact of the International Convention on the Rights of Persons with Disabilities on Qatari Domestic Legislation
Authors: De Asís Roig Rafael , Barranco Avilés María del Carmen , Cuenca Gómez Patricia , Rodríguez del Pozo Pablo , Al Ali Khalid
Published: June 2017

The entry into force of the International Convention on the Rights of Persons with Disabilities means that State Parties shall adapt their legislation and regulation to the social model designed in the international text. The present work aims to identify the general challenges faced by Qatar in that task. After presenting the keys to understanding the requirements of the Convention, the paper underlines the necessity of a cultural change in addition to a legal one. In this way, Qatar shares with other State Parties theoretical, legal, social and economic problems. Specifically, the current medical model in Qatar policies should be replaced with the conventional social model. This implies the elimination of discrimination based on disability, the universal accessibility, the legal capacity for persons with disabilities and their right to live independently. A priority is to generate an associative movement around disability.
Evaluation of some Winter Chickpea Varieties Under Dry Farming.
Authors: Ali Jamil , Tofiq Sherwan , Ahmad Ismael
Published: June 2017

This study was carried out during three successive winter seasons (1991-1994), to evaluate some introduced chickpeas varieties or their yield and other agronomic traits under dry farming prevailing in Sulaimani Region.

     Results obtained showed that the introduced varieties tested in this investigation possess a good yield ability, survival to climatical conditions prevailing in the region and a suitable plat height which makes them convenient for mechanical harvesting, specially the varieties number 1,2,5 and 6. The combined analysis showed that the variety number 6 was ranked number 1 among the highest yielding varieties.
Effect of fungi isolated from some wheat cultivars approved in Sulaymaniyah and their secretions on germination percentage.
Authors: Ismaeel Jalal
Published: June 2017

This study was conducted to determine the fungi associated with some approved wheat cultivars (hard and soft) in Sulaymaniyah province, and to determine the most appropriate percentage of infection with these fungi and the effect of their secretions on the germination rate. The genera of fungi that were isolated were as follows, according to their frequency, respectively:Rhizopus, Colletotrichum, Helminthosporium, Aspergillus, Alternaria, Penicillium, FusariumThe lowest rate of germination percentage was 15.66% in the treatment of Fusarium secretions, and the rate of germination was in the treatment of the comparison 87.76%. 15% in the treatment of Aspergillus secretions and the comparison treatment was 91.2%, and the highest percentage was 52.66% in the treatment of Colletortrichum secretions in the soft variety Aras. The periods of immersion of the seeds inside the fungal secretions had a significant effect on the germination rates as well.
Analgesic and anti-inflammatory activity of ethanolic extracts of leaf and fruit pulp of Aegle marmelos in albino rats
Authors: K. Krishnakanth , B. G. Abhilash , K. Neeraja , Rao G. Hari Jagannadha , Cheekavolu Chakrapani
Published: June 2017

Background: To study the analgesic and anti-inflammatory activity of the ethanolic extracts of leaf (LE) and fruit pulp (FE) of Aegle marmelos in comparison with the standard drugs pentazocine and diclofenac in albino rats. 56 healthy wistar albino rats of either sex were randomly divided into 14 groups of 4 each (n=4), weighing about 150-200grams were selected for the study. All drugs i.e. 1ml of 1% Carboxy methyl cellulose (CMC), pentazocine 10mg/kg (intraperitoneal), diclofenac 10 mg/kg and LE and FE at doses of 100mg/kg and 200mg/kg in 1% CMC (vehicle) were administered per oral one hour before the experiment.Methods: Analgesic activity was assessed by Eddy’s hot plate method (latency time) and acetic acid induced writhing (number of writhings) method. Anti-inflammatory activity was assessed by carrageenan induced hind paw edema method using digital plethysmometer.Results: Test drugs at doses LE 200mg/kg and FE 200mg/kg have shown significant increase in mean latency time in Eddy’s hot plate (P <0.001) and decrease in the average number of writhing movements (P <0.01). LE 200 and FE 200 doses did not show significant anti-inflammatory activity in Carrageenan induced paw edema model (P >0.05).Conclusions: Leaf extract (LE) and fruit extract (FE) at doses 200mg/kg have shown significant analgesic action and no anti-inflammatory action.
New Thermo-Sensitive Hydrogel Based on Copolymer of 2-hydroxyethyl Acrylate and Ethyl Acrylate
Authors: Rakhmetullayeva R.K. , Azhkeyeva A.N. , Yeligbayeva G.Zh. , Shaikhutdynov Ye.M. , Mun G.A. , Abutalip M.
Published: June 2017

In this work firstly the thermo-sensitive polymer hydrogels were obtained by three-dimensional radical copolymerization of water-soluble HEA and hydrophobic monomer ethyl acrylate (EA) in the presence of crosslinking agent N,N’-methylenebisacrylamide (BAA). The hydrogels with certain copolymer compositions showed thermo-sensitive behavior in aqueous solutions. The regularity of complex formation of cross-linked copolymer HEA-EA with anionic and cationic surface-active substances have been studied. The swelling behavior of the hydrogels in cetylpyridinium bromide aqueous solutions was studied. Increased swelling of the hydrogels was observed in the surfactant solutions. The increased swelling was more prominent for the hydrogels with a higher content of the hydrophobic moiety in the copolymer composition and with the higher surfactant concentration. The reason for the observed phenomenon is discussed.
Разработка системы экологического менеджмента производственно-торгового предприятия
Authors: Шоба Валентина Александровна
Published: June 2017

В статье представлена процедура проектирования ключевого элемента системы экологического менеджмента «Экологические аспекты» в соответствии с требованиями новой версии стандарта ISO 14001:2015. С этой целью идентифицированы экологически значимые виды деятельности, продукции и услуг предприятия, выявлены существенные экологические аспекты, предложены мероприятия по сокращению объема или изменения характера вредных воздействий
Особенности формирования антикризисного инвестиционного плана производственного предприятия
Authors: Щербакова Наталья Александровна
Published: June 2017

В статье рассматривается специфика формирования инвестиционного плана производственного предприятия, находящегося в кризисной ситуации. Выделены основные мероприятия стабилизационной программы, направленной на преодоление кризисных явлений в деятельности предприятия. Приведены особенности финансовых расчетов для оценки эффективности антикризисного инвестиционного плана.
Анализ барьеров и возможностей для развития инновационной активности предприятий легкой промышленности
Authors: Горевая Евгения Сергеевна , Бедарева Ксения Валерьевна
Published: June 2017

В статье рассмотрено современное состояние легкой промышленности, которое характеризуется низкими объемами производства, высокой зависимостью от импортного сырья и оборудования. Проведенный анализ инновационной активности предприятий показал, что масштабы внедрения как продуктовых, так и процессных инноваций в отрасли незначительны. На основе исследования статистических данных и аналитических обзоров выделены барьеры развития отрасли и определены направления деятельности по преодолению стагнации и дальнейшего развития. Предложены системные решения, которые позволят не только сформировать конкурентоспособное предложение на российском рынке, но и увеличить экспорт производимой продукции.
Metodologías de diseño de pavimentos flexibles: Tendencias, alcances y limitaciones
Authors: Rondón Quintana Hugo Alexander , Reyes Lizcano Fredy Alberto
Published: June 2017

El artículo presenta los tipos de metodologías para el análisis y diseño de estructuras de pavimentos flexibles en el mundo, las tendencias actuales y el avance de herramientas computacionales en la ingeniería de pavimentos. Se discuten los alcances y limitaciones de dichas metodologías y tendencias, haciendo énfasis en el comportamiento de materiales granulares que conforman capas de base y subbase. Además se realiza una discusión crítica sobre la forma como el método de diseño colombiano evalúa el fenómeno de deformación permanente en estructuras de pavimentos flexibles.
Aplicación de algoritmos genéticos a la clasificación de imágenes de satélite en el marco de los servicios grid inteligentes estado del arte
Authors: Hoyos Pineda Jorge Gabriel , Pérez Castillo José Nelson
Published: June 2017

Los servicios Web han atendido durante muchos años el problema de la interoperabilidad sintáctica entre aplicaciones, dejando a un lado la semántica. Con el gran volumen de información disponible en la Web, y la aparición de nuevos paradigmas como la Computación Grid, ha surgido la necesidad de mejorar los servicios Web mediante la inclusión del componente semántico para lograr un mayor aprovechamiento de estos recursos y de los elementos necesarios para que dichos servicios puedan ser utilizados dentro de un ambiente Grid. En el campo de la inteligencia Web se han hecho varias propuestas, entre ellas la aplicación de técnicas de computación flexible como la computación evolucionaria. En este documento se realizará una revisión sobre el desarrollo actual de la Grid y otrostemas relacionados como la Web semántica y los servicios Web, además de los diferentes enfoques acerca de la aplicación de los Algoritmos Genéticos al problema de la clasificación de imágenes de satélite.
Immobilization and Characterization of Bacillus Thuringiensis HCB6 Amylase in Calcium Alginate Matrix
Authors: Zusfahair Zusfahair , Riana Ningsih Dian Riana Ningsih Dian , Kartika Dwi Kartika Dwi , Fatoni Amin Fatoni Amin , Permatawati Indah Permatawati Indah
Published: June 2017

Free enzyme in solution react with substrates to result in products which cannot be recovered for reuse. TheseÂ problemsÂ canÂ beÂ overcomeÂ to a certain extent by the use of enzyme immobilization method. Immobilized enzymes are more robust and more resistant to condition changes. More importantly, the heterogeneous immobilized enzyme systems allow an easy recovery of both enzymes and products, multiple re-uses of enzymes, and continuous operation of enzymatic processes. Entrapment of enzymes in Ca-alginate is one of the simplest methods of immobilization. The aim of this research was to obtain the optimum condition of the making of immobilized amylase beads using a Ca-alginate bead and to determine its characteristics. The optimization of immobilized amylase beads includes variation of sodium alginates and variations of enzyme contact time with CaCl2. The characterization of immobilized amylase includes determination of optimum substrate concentration, optimum pH, and optimum incubation time as well as amylase stability test. Amylase activity was determined by using dinitro salicylic (DNS) method. The results showed that the optimum immobilized amylase obtained at alginate concentrations of 5% (w/v), contact time of 60 minutes and immobilization efficiency of 67.5%. Furthermore, immobilized amylase showed optimum substrate concentration of 1.5-2.5% (w/v), optimum pH of 6, an optimum incubation time of 20 minutes with the activity of 179.8 U/mL. The KM value for free amylase and immobilized amylases were 0.3 mM and 0.12 mM respectively. Vmax value for free amylase and immobilized amylases were 105.3 U/mL and 10.1 U/mL respectively. Immobilized Amylase can be used up to six times with the residual activity of 52.7%.
Cytotoxic Steroids from The Stem Bark of Chisocheton cumingianus (Meliaceae)
Authors: Katja Dewa Gede , Farabi Kindi , Nurlelasari Nurlelasari , Harneti Desi , Julaeha Euis , Hidayat Ace Tatang , Mayanti Tri , Maharani Rani , Supratman Unang , Awang Khalijah
Published: June 2017

Three cytotoxic steroids, stigmasterol (1), stigmast-5-en-3b-ol (2) and b-sitosterol-3-O-acetate (3) were isolated from the stem bark of Chisocheton cumingianus. The chemical structures of those compounds were identified based on spectroscopic data and by comparison with those data previously reported. All of the compounds isolated were evaluated for their cytotoxic effects against P-388 murine leukemia cells in vitro. Compounds 1-3 showed cytotoxicity activity against P-388 murine leukemia cells with IC50values of 12.4, 60.8, and ÃÂ 100 mg/mL, respectively.
Isolation and evaluation of the antioxidant actity of phenolic constituents of the Garcinia sizygiifolia
Authors: Muharni Muharni , Elfita Elfita , Pratama Didi
Published: June 2017

Garcinia sizygiifolia  is  a native plant to the South Sulawesi region popularly known as sula and has been cultivated in several regions in Indonesia.  The plant by local community use as a food and source of wood, but has not found information on chemical content and biological activity.  Therefore, this study was carried out to Isolation and evaluation of the antioxidant activity of the phenolic constituent of the G. sizygiifolia.  A 30.0 g portion of ethyl acetate extract of the stembark G. sizygiifolia were separated by column chromatography method using silica G 60 F254 (230-400 mesh), eluted gradient polarity mixtures of n-hexane-ethyl acetate were collected and sorted into fractions. Fraction  F 1 (5.2 g) were separated and purified again by chromatography method until pure compound obtained. The structure of the isolated compound was determined using UV, IR, and NMR spectroscopy. The antioxidant activity was tested by DPPH method. The isolated  pure compound was a yellow solid with melting point 148-149 oC. Base on spectroscopy data and by comparison with data from the literature, isolated compound is a known compound 2,4-dihydroxyphenylethanone. The compound exhibited antioxidant activity with IC50 96 µg/mL against DPPH.
Development of an Android-based Learning Media Application for Visually Impaired Students
Authors: Azmi Nurul , Maryono Dwi , Yuana Rosihan Ari
Published: June 2017

This research aims to develop the English for Disability (EFORD) application, on Android-based learning english media for Visually Impaired students and determine its based this on assessment of matter expert, media expert, special needs teacher and students. The research method adopted in this research is Research and Development (R&D). The development of this application through five phases: (1) Analysis of problems, through observation and interviews. (2) Collecting information as product planning / analysis of the needs of the media as required of blind children. (3) The design phase of products such as the manufacture of flow and storyboard navigation map.(4) Design validation phase form of an expert assessment of the media is developed. (5) testing products phase, such as assessment of the application by blind students. The results of this research is EFORD application which is feasible to be used as English learning media for visual impairment application based on assessment: 1)Media expert it's obtained a percentage scored 95%, include for very worthy category, 2)Subject matter, expert its obtained percentage scored 75% include for worthy category and 3) Special needs teacher it's obtained a percentage scored 83% include for very worthy category. Upon demonstration, students indicated the positive response of ≥ 70% in each indicator. Therefore English learning media with Android based application English for Disability (EFORD) is very feasible to be used as an English learning media especially grammar and speaking English content for students of visual impairment for a number of reasons.

This work is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.
Development of protection mechanisms against DRDoS-attacks and combined DRDoS-attacks
Authors: Bekeneva Yana , Shorov Andrey
Published: June 2017

Distributed “denial of service” attacks based on the traffic reflection and amplification (DRDoS attacks) still are a powerful threat for computer networks. More than half of all attacks were executed by using multiple types of attacks. Development of new protection mechanisms against such attacks is one of the most important tasks in the field of computer security. In this paper, we present experiments on DNS attack, NTP attacks and combined DRDoS-attack simulation. We simulated several protection mechanisms as well as a mechanism developed by us. We compared these protection mechanisms for different kinds of attacks.
Simulation of tombolo evolution by using CST3D-WA
Authors: Kim Hyoseob , Lee Seungho , Park Duhoon , Lim Hak Soo
Published: June 2017

Wave-average area morphologic change numerical modelling system, CST3D, is adopted to reproduce tombolo and salient evolution behind a detached breakwater at a laboratory. The numerical wave-average morphologic model equips the beachface slope controlling method. Beachface slope varies between two extreme values for erosion and siltation modes. The beachface slope is checked every time step, and the morphology at the beachface and flat surf terrace is modified, if necessary. The model system reproduced tombolo and salient evolution for 2 cases of Ming and Chiew’s experiments. Model results implies the length of the detached emerged structure plays an important role on formation of tombolos.
Preparation of carbon-coated Fe3O4 porous particles and their adsorption properties of iron (III) ion
Authors: Jin Xiaozhao , Wu Xiaowen , Zhang Zhijie , Huang Zhaohui , Liu Yan'gai , Fang Minghao , Min Xin
Published: June 2017

Carbon-coated Fe3O4 porous particles were synthesized with phenolic resin as a carbon source using impregnating pyrolysis. The magnetic property, phase structure, pore structure, and surface morphology of the pyrolysis products were characterized by vibrating specimen magnetometer, X-ray diffraction, Brunauer–Emmett–Teller (BET), and scanning electron microscopy, respectively. Also, the adsorption properties of iron (III) ions on Fe3O4@C as well as pure carbon, including adsorption isothermal, kinetics, and pH effect, were investigated. The results showed that the size of synthesized Fe3O4@C particles ranged from 10 to 50 μm with micro-meso pores sized below 5 nm. The main phases of Fe3O4@C were magnetite, graphite and amorphous carbon. The adsorption kinetics of iron (III) ions on Fe3O4@C could be expressed by the pseudo-second-order kinetic model and the adsorption isotherm was fitted by a Freundlich model. Nano-Fe3O4 had synergism to porous carbon on the absorption of iron (III) ions.
Flood disaster level evaluation using a particle swarm optimization algorithm considering decision maker's preference
Authors: He Yaoyao , Wan Jinhong , Lei Xiaohui , Singh Hemant
Published: June 2017

There has been an increasing demand for accurately evaluating flood disaster levels in order to improve public safety and management of water resources. This article reviews the characteristics of the existing subjective and objective assessment methods, and introduces decision maker's preferences in the particle swarm optimization (PSO) algorithm for a better assessment of flood disaster level. The indicator weight vector of the fuzzy clustering iterative (FCI) model is used as the position vector of a particle in the approach herein proposed. The individuals that do not satisfy the preferences are screened out during the evolution process, in order to obtain more reasonable assessment results according to the preferences for the given scenario. The optimal weight vector of flood disaster samples is then obtained using FCI model combined with the proposed PSO with decision maker's preferences, referred to as PSODP algorithm. A case study of Xinjiang autonomous region of China demonstrates the results of flood rating using different decision maker's preferences, and provides several suggestions on preference type choice. This type of analysis could be used by the water conservation department to better classify the level of a disaster and channel resources accordingly, in the best way possible to manage the situation.
Study of psycho-emotional state of patients with acne depending on the severity and hereditary factors
Authors: Petrenko Anastasiia , Litus Oleksander
Published: June 2017

Acne is one of the most common skin disease in young adults and occurs in 85% of boys and girls. The disease is characterized by progressive course of the formation of psycho-emotional disorders, mainly depression row in about half of patients. Installed heredity is almost 80% of first-degree relatives of patients with acne. In patients with positive family history of acne the disease occurs earlier and course harder. The aim of the study – is to determine the impact of acne on psycho-emotional status in patients. Materials and methods. We examined 78 patients with severe and moderate acne. All patients were questioned by questionnaire CADI (Cardiff Acne Disability Index). Results. Among the surveyed men with moderate acne average value was 6, median – 6, mode – 6; in men with severe acne course average value was 8.6, median – 9.5, mode – 10. Among women surveyed the results of the form were somewhat different from data that were shown by male patients. Women with moderate acne had average value 7 points, the median – 7.5 mode – 8; among women who had severe acne course the average value was – 8, median – 9. Conclusions. As can be seen from the results of the questionnaire, respondents in all groups were shown a significant effect of disease on the psycho-emotional state of patients.
Транспортные свойства гетероэпитаксиальных пленок на основе теллурида висмута в сильных магнитных полях
Authors: Лукьянова Л.Н. , Бойков Ю.А. , Усов О.А. , Данилов В.А. , Волков М.П.
Published: June 2017

Проведены исследования температурных и магнитополевых зависимостей гальваномагнитных свойств гетероэпитаксиальных пленок n-Bi2Te3 в магнитных полях до 14 Тл при низких температурах. Показано, что ступени на магнитополевых зависимостях квантового эффекта Холла и плато на температурных зависимостях магнетосопротивления в пленках обусловлены топологическими поверхностными состояниями фермионов Дирака. DOI: 10.21883/FTP.2017.07.44632.18
Структура соединения Сu-=SUB=-2-=/SUB=-Se, полученного различными методами
Authors: Иванов А.А. , Сорокин А.И. , Панченко В.П. , Тарасова И.В. , Табачкова Н.Ю. , Бублик В.Т. , Акчурин Р.Х.
Published: June 2017

Получены образцы Cu2Se методом механохимического синтеза и компактирования с помощью искрового плазменного спекания и горячего прессования. Методами рентгеновской дифрактометрии и сканирующей электронной микроскопии были исследованы их структура и фазовый состав до и после термообработки. Показано, как изменяется форма и размеры структурных элементов полученных образцов. Исследовано изменение фазового состава селенида меди в интервале температур 25-500oC in situ. DOI: 10.21883/FTP.2017.07.44638.24
Перспективы использования гексаборидов редких земель в термоэлектрических однофотонных детекторах
Authors: Кузанян А.С. , Никогосян В.Р. , Гурин В.Н. , Волков М.П. , Кузанян А.А.
Published: June 2017

Анализируются результаты компьютерного моделирования процессов распространения тепла, протекающих после поглощения одиночных фотонов с энергией 1 эВ-1 кэВ в трехслойном сенсоре термоэлектрического детектора. Рассмотрены различные геометрии сенсора с вольфрамовым поглотителем, термоэлектрическим слоем из гексаборида церия и вольфрамовым теплоотводом. Показано, что посредством изменения геометрических размеров слоев сенсора можно получать датчики для регистрации фотонов конкретного спектрального диапазона с необходимыми энергетическим разрешением и скоростью счета. Сделан вывод, что трехслойный сенсор имеет ряд преимуществ по сравнению с однослойным сенсором и обладает характеристиками, позволяющими рассматривать термоэлектрический детектор как реальную альтернативу сверхпроводящим однофотонным детекторам. DOI: 10.21883/FTP.2017.07.44639.25
Зависимость морфологии поверхности ультратонких пленок висмута на слюдяной подложке от толщины пленки
Authors: Крушельницкий А.Н. , Демидов Е.В. , Иванова Е.К. , Каблукова Н.С. , Комаров В.А.
Published: June 2017

Представлены результаты исследования поверхности пленок висмута толщинами 15-100 нм на слюдяной подложке методом атомно-силовой микроскопии. Установлен близкий к линейному характер зависимостей средней шероховатости поверхности и средней высоты фигуры роста от толщины пленки. Обнаружено увеличение среднего размера кристаллитов с увеличением толщины пленки, и выявлена слабая зависимость размера кристаллита от толщины при толщинах 27-70 нм. DOI: 10.21883/FTP.2017.07.44641.27
Электрохимические исследования процессов легирования медью слоистых кристаллов семейства [(Ge,Sn,Pb)(Te,Se)]-=SUB=-m-=/SUB=-[(Bi,Sb)-=SUB=-2-=/SUB=-(Te,Se)-=SUB=-3-=/SUB=-]-=SUB=-n-=/SUB=- (m,n=0,1,2...)
Authors: Кретова М.А. , Коржуев М.А. , Авилов Е.С.
Published: June 2017

Изучены процессы интеркаляции меди в ван-дер-ваальсовы (VdW) щели слоистых тройных сплавов семейства [(Ge,Sn,Pb)(Te,Se)]m[(Bi,Sb)2(Te,Se)3]n (m,n=0,1,2...), изменяющие электрические, механические и другие физические свойства образцов. Обнаружено пропорциональное снижение концентрации интеркалированной меди Delta NCu при уменьшении относительной объемной плотности щелей Ван-дер-Ваальса DVdW=1/s с ростом слойности пакетов s, а также их толщины xi1 при изменении состава тройных сплавов. DOI: 10.21883/FTP.2017.07.44647.33
Термоэлектрические и механические свойства твердого раствора Bi-=SUB=-0.5-=/SUB=-Sb-=SUB=-1.5-=/SUB=-Te-=SUB=-3-=/SUB=-, полученного кристаллизацией расплава в жидкости
Authors: Никулин Д.С. , Иванова Л.Д. , Гранаткина Ю.В. , Петрова Л.И. , Нихезина И.Ю. , Мальчев А.Г.
Published: June 2017

Исследовано влияние условий получения образцов из гранул, приготавливаемых кристаллизацией расплава твердого раствора Bi0.5Sb1.5Te3 в жидкости, на механические и термоэлектрические свойства этих образцов. С помощью растровой электронной и оптической микроскопии исследованы микроструктура и рельеф поверхности сколов образцов. Механические свойства образцов исследованы в условиях деформации сжатием при температурах от 300 до 620 K. Термоэлектрические характеристики (коэффициент Зеебека, электропроводность и теплопроводность) измерены при комнатной температуре и в интервале температур 100-700 K. Получены образцы с наиболее высокой максимальной термоэлектрической добротностью (ZT)max~1.3 при 370 K. DOI: 10.21883/FTP.2017.07.44652.38
Получение и свойства термоэлектрического материала на основе Zn-=SUB=-4-=/SUB=-Sb-=SUB=-3-=/SUB=-
Authors: Панченко В.П. , Табачкова Н.Ю. , Иванов А.А. , Сенатулин Б.Р. , Андреев Е.А.
Published: June 2017

Проведено исследование влияния условий синтеза на структуру и термоэлектрические свойства материалов на основе антимонида цинка. Рассмотрены вопросы, касающиеся влияния избыточного Zn, режимов искрового плазменного спекания и легирования In на фазовый состав и термостабильность свойств полученного материала. Материал получали методом прямого сплавления компонентов с последующим искровым плазменным спеканием. Показано, что при определенных режимах искрового плазменного спекания введение избыточного количества Zn и легирование In позволяют получить материал beta-Zn4Sb3 со значением термоэлектрической эффективности ZT~1.47 при температуре 720 K, который показал стабильность свойств в рамках проведенных испытаний. DOI: 10.21883/FTP.2017.07.44653.39
Концентрационный коллапс в слоистых кристаллах семейства [(Ge,Sn,Pb)(Te,Se)]-=SUB=-m-=/SUB=-[(Bi,Sb)-=SUB=-2-=/SUB=-(Te,Se)-=SUB=-3-=/SUB=-]-=SUB=-n-=/SUB=- (m,n=0,1,2...)
Authors: Коржуев М.А.
Published: June 2017

Обсуждаются причины "концентрационного коллапса" --- резкого увеличения равновесной концентрации носителей заряда n,p=1·1019->(2-5)·1020 см-3 при переходе от бинарных сплавов типа GeTe и Bi2Te3 к тройным сплавам семейства [(Ge,Sn,Pb)(Te,Se)]m[(Bi,Sb)2(Te,Se)3]n (m,n=0,1,2...). Явление связывается с позиционным разупорядочением гетеровалентных катионов (Ge+2, Sn+2, Pb+2≤ftrightarrowBi+3, Sb+3) в катионной подрешетке тройных сплавов. При разупорядочении изовалентных катионов (Bi+3≤ftrightarrowSb+3) либо анионов (Te-2≤ftrightarrowSe-2) явление не наблюдается. DOI: 10.21883/FTP.2017.07.44654.40
Эффект Парселла в одномерных разупорядоченных фотонных кристаллах
Authors: Губайдуллин А.Р. , Иванов К.А. , Николаев В.В. , Калитеевский М.А.
Published: June 2017

Проведено исследование изменения вероятности спонтанной эмиссии для излучателя, помещенного в одномерный разупорядоченный фотонный кристалл. Показано, что для диполя, помещенного в разупорядоченный фотонный кристалл, возможно как усиление спонтанной эмиссии (если частота соответствует собственной оптической моде структуры), так и подавление спонтанной эмиссии (в случае запрещенной зоны или когда позиция соответствует узлу в профиле электрического поля собственной моды). Показано, что при большом уровне разупорядочения фотонная запрещенная зона сужается, а вероятность эмиссии в центре фотонной запрещенной зоны становится существенно отличной от нуля. Показано, что при большом уровне разупорядочения в фотонной запрещенной зоне возможно появление локализованных состояний, для которых спонтанная эмиссия значительно усилена. DOI: 10.21883/FTP.2017.07.44659.8479
Рост внутренних оптических потерь с увеличением тока накачки и выходная мощность лазеров на квантовых ямах
Authors: Соколова З.Н. , Веселов Д.А. , Пихтин Н.А. , Тарасов И.С. , Асрян Л.В.
Published: June 2017

Представлены результаты расчетов рабочих характеристик полупроводниковых лазеров на квантовых ямах с учетом роста внутренних оптических потерь в волноводной области с увеличением тока накачки. Использовано условие глобальной электронейтральности в структуре, которое заключается в равенстве суммарного заряда электронов в активной и волноводной областях суммарному заряду дырок в этих двух областях. Получено хорошее согласие измеренной и рассчитанной ватт-амперных характеристик. DOI: 10.21883/FTP.2017.07.44661.8522
Ab initio моделирование энергии растворения и активности углерода в ГЦК-Fe
Authors: Ридный Я.М. , Мирзоев А.А. , Мирзаев Д.А.
Published: June 2017

С использованием программного пакета WIEN2k проведено ab initio моделирование равновесной структуры и свойств ГЦК-железа с примесью углерода. Предложена методика, позволяющая провести моделирование магниторазупорядоченного состояния системы в рамках теории функционала плотности. В рамках данной методики проведен расчет величины энергии растворения углерода, которая составила 0.25 eV. Определены также энергии взаимодействия между атомами углерода, находящимися в первой, второй и третьей координационных сферах друг друга, которые составили E1=0.06 eV, E2=0.1 eV и E3=0.005 eV. Для проверки достоверности полученных значений энергий проведен расчет активности углерода методом Монте-Карло. Хорошее качественное согласие раcсчитанной активности с экспериментальными данными указывает на достоверность полученных энергетических параметров. Настоящая работа поддержана РНФ (грант N 16-19-10252). DOI: 10.21883/FTT.2017.07.44583.342