bluuebunny/crossref_metadata_2025 huggingface dataset:
The Pleasure of Walking: An Innovative Methodology to Assess Appropriate Walkable Performance in Urban Areas to Support Transport Planning
Authors: Appolloni Letizia , Corazza Maria Vittoria , D’Alessandro Daniela
Published: June 2019

The Walking Suitability Index of the Territory–T-WSI is an innovative methodology to assess walkability. Unlike other methods and tools in this field designed to evaluate walkability on given origin-destination paths, T-WSI is conceived for area-wide assessments, typically at the neighborhood level. This can be achieved by visual surveys to collect data, which are easy to perform at street level, their further process via an algorithm, and their aggregation to assess the walking performance levels of the test area. The paper describes such methodology, which includes the development of 12 indicators associated with four main evaluation categories (Practicability, Safety, Urbanity and Appeal), and its application to a case study in a medium-size town in central Italy. Results are described and elaborated to highlight T-WSI’s contribution to help decision makers in the urban governance process, typically in the fields of land use, mobility management and maintenance, coherently with the research objective to enlarge the potential of walkability methodologies thus far available up to area-level assessment.
State-of-Charge Effects on Standalone Solar-Storage Systems in Hot Climates: A Case Study in Saudi Arabia
Authors: Elshurafa Amro M. , Aldubyan Mohammad H.
Published: June 2019

In this paper, we quantify the economic and environmental implications of operating a standalone photovoltaic-battery system (PVB) while varying the battery’s minimum allowable state of charge (MSOC), the load profile, and simultaneously incorporating ambient temperature effects in hot climates. To that end, Saudi Arabia has been chosen for this case study. Over a project lifetime of 25 years, we find that, contrary to the widely accepted norm of 50% being a reasonable MSOC, a lower MSOC can bestow economic benefits. For example, a MSOC of 20% results in a lower number of batteries required throughout the lifetime of the project—while still meeting demand. For a village of 1000 homes, this translates to a saving of $47 million in net present value. Further, incorporating temperature effects results in deducing more realistic costs that are 125% higher than the ideal scenario (i.e., when temperature is not modeled). This difference stems from underestimating the actual number of batteries needed throughout the project lifetime. Compared to a diesel-powered microgrid, and for a village of 1000 homes, a PVB would, on an annual basis, avoid emitting 5000 tons of carbon and avoid burning 2 million liters of diesel.
Investment Opportunities Identification Based on Macroeconomic Development, the Multiple Criteria Decision Approach
Authors: Mitkova Veronika , Mlynarovič Vladimír
Published: June 2019

The aim of this work is to develop a “learning model” which outranks countries according to their confrontation of historical macroeconomic indicators for a given period of time with the spreads at the end of that time and to formulate a forward-looking investment strategy regarding government bonds for the following time period. The mechanism of identifying investment opportunities among government bonds is based on the multiple criteria decision making technique, and we look to the Promethee II method as a symmetry approach to country ordering. The spread is defined as the difference between the yield to maturity of the 10-year government bond of a country and the Germany government bond with the same maturity. In this paper, an optimization approach based on three models is developed to find the weights of importance for macroeconomic characteristics, together with a sensitivity analysis on changes in these characteristics. The method was applied to 17 European countries characterized by 16 macroeconomic characteristics. The originality of this paper lies in the two-stage approach to the investment strategy construction based on criteria weights optimization with stability intervals for their values.
A New Fe (III)-Selective Membrane Electrode Based on Fe (II) Phthalocyanine
Authors: Ozer Tugba , Isildak Ibrahim
Published: June 2019

A new miniaturized all solid-state contact Fe (III)-selective PVC membrane electrode based on Fe (II) phthalocyanine as a neutral carrier was described. The effects of the membrane composition and foreign ions on the electrode performance was investigated. The best performance was obtained with a membrane containing 32% poly (vinyl chloride), 64% dioctylsebacate, 3% Fe (II) phthalocyanine, and 1% potassium tetrakis (p-chlorophenyl) borate. The electrode showed near Nernstian response of 26.04 ± 0.95 mV/decade over the wide linear concentration range 1.0 × 10−6 to 1.0 × 10−1 M, and a very low limit of detection 1.8±0.5 × 10−7 M. The potentiometric response of the developed electrode was independent at pH 3.5–5.7. The lifetime of the electrode was approximately 3 months and the response time was very short (< 7 s). It exhibited excellent selectivity towards Fe (III) over various cations. The miniaturized all solid-state contact Fe (III)-selective membrane electrode was successfully applied as an indicator electrode for the potentiometric titration of 1.0 × 10−3 M Fe (III) ions with a 1.0 × 10−2 M EDTA and the direct determination of Fe (III) ions in real water samples.
Quasi-Solid-State Hybrid Electrolytes for Electrochemical Hydrogen Gas Sensor
Authors: Kim Sang-Hyung , Han Dong-Kwan , Hong SeungBo , Jeong Bo Ra , Park Bok-Seong , Han Sang-Do , Kim Dong-Won
Published: June 2019

The quasi-solid-state hybrid electrolytes were synthesized by chemical cross-linking reaction of methacrylate-functionalized SiO2 (MA-SiO2) and tetra (ethylene glycol) diacrylate in aqueous electrolyte. A quasi-solid-state electrolyte synthesized by 6 wt.% MA-SiO2 exhibited a high ionic conductivity of 177 mS cm−1 at room temperature. The electrochemical H2 sensor assembled with quasi-solid-state electrolyte showed relatively fast response and high sensitivity for hydrogen gas at ambient temperature, and exhibited better durability and stability than the liquid electrolyte-based sensor. The simple construction of the sensor and its sensing characteristics make the quasi-solid-state hydrogen sensor promising for practical application.
Étude structurale d'une phase haute température instable du chlorate de sodium
Authors: Meyer Paulette , Gasperin Madeleine
Published: June 2019

Par cristallisation du chlorate de sodium fondu, entre 255 et 260° C, il se forme une phase monoclinique, de groupe spatial P2₁/a avec a = 8,78, b = 5,17, c = 6,83 Å, β = 110°, Z = 4. L'étude aux rayons X de la structure de cette phase montre qu'elle est proche de celle de KClO₃, et que Na est entouré de neuf atomes d'oxygène. Ceci pourrait expliquer l'étroitesse du domaine de stabilité.
Structure cristalline du chlorosulfure d'erbium Er S Cl
Authors: Sfez Gérard , Adolphe Claude
Published: June 2019

Les cristaux d'ErSCl appartiennent au groupe spatial Pmmn ; les paramètres de la maille sont :

a = 5,26 Å ; b = 3,974 Å ; c = 7,44 Å

Il y a deux masses formulaires par maille.

Les positions des atomes ont été affinées par une méthode de moindres carrés (R = 0,047). La structure est semblable à celle de FeOCl. Elle présente parallèlement à (001) des couches doubles d'atomes de chlore et des couches formées par l'assemblage de tétraèdres SEr₄.
Spectre de réflexion infrarouge de minéraux monocristallins ou en poudre III : Carbonates
Authors: Vierne Raymond , Brunel René
Published: June 2019

Nine new infrared reflection spectra (7 with monocrystalline polished faces in polarized light and two with compressed powder pellets) of natural carbonates are presented. We obtain some interesting results about their structures such as slight disparity between dolomite and other rhombohedral carbonates and indications of hydrogen bonds in azurite. We suggest a new interpretation for the weak vibrations about 9.5 µm in the aragonite group.
Découverte de minyulite en échantillons spectaculaires, de wavellite et de variscite dans les phtanites siluriens près de Pannecé (Loire-Atlantique)
Authors: Forestier François-Hubert , Lasnier Bernard , L'Helgouach Jean
Published: June 2019

Découverte du premier gisement français de minyulite en gerbes fibro˗radiées de dimensions et colorations exceptionnelles, associée à de la wavellite. On recueille aussi dans ce gisement des encroûtements ou des blocs de plusieurs kilos de variscite massive. Les préhistoriens trouvent ici la première explication plausible de l'origine de certaines perles de « callaïs » découvertes dans des tumuli mégalithiques de l'ouest de la France.
Taxonomic Treatment of the Tillandsia utriculata Complex (Bromeliaceae)
Authors: Pinzón Juan P. , Ramírez-Morillo Ivón M. , Carnevali Germán , Till Walter , Butcher Derek , Ortiz-Díaz Juan J.
Published: June 2019

The taxonomic treatment of the 18 species composing the Tillandsia utriculata L. complex s.l. is presented. A description and a diagnosis of the group are provided, as well as two artificial keys to species, each emphasizing characters from living plants or from exsiccatae, respectively. Complete taxonomic information is given, including taxonomic citation, synonymy, etymology or eponimy, description, specimens examined, phenology, nomenclatural notes, relationships and diagnostic characters, variation, ecology and distribution, together with plates of living plants and vegetative and reproductive structures, as well as maps of distribution.
In vitro antimicrobial assessment on lactic acid bacteria isolated from common freshwater fishes
Authors: Chong Wai-Wei , Lim Crystale Siew-Ying , Lai Kok-Song , Loh Jiun-Yan
Published: June 2019

Probiotic is well-known as an effective agent to control and manage diseases in aquaculture. Unlike antibiotics and chemotherapeutic agents, probiotic does not trigger the emergence of antibiotic-/chemo-resistant bacteria. This study was aimed to isolate, identify and evaluate lactic acid bacteria from intestines of three common food fish, i.e. tilapia (Oreochromis niloticus), catfish (Clarias gariepinus) and rohu (Labeo rohita). Thirty-four lactic acid isolates were isolated and screened for inhibitory effect against fish pathogens e.g. Escherichia coli, Klebisella pneumoniae, Pseudomonas aeruginosa and Salmonella enterica. Positive antagonists were subsequently tested in haemolytic, salt tolerance and bacteriocin-like inhibitory substances (BLIS) assays. Our results showed only three isolates displayed positive inhibitory effect against all four pathogens. These three isolates were classified as γ-haemolytic bacteria. Our results revealed that bacterial isolates (T2.1.2 - Pediococcus acidilactici and T2.2.2 - Lactobacillus fermentum) isolated from O. niloticus (tilapia) showed a better adaptation in the range of 0 - 20 ppt; while, the bacteria isolated from L. rohita (R1.1.1 - P. acidilactici) could survive up to 35 ppt. These isolates were then identified based on 16S rRNA gene sequences. BLIS data revealed that both P. acidilactici and L. fermentum isolated from O. niloticus and L. rohita could suppress the growth of pathogens with cell density as low as 104 cfu/ml. Our study shows that P. acidilactici and L. fermentum have the potential to be further explored as biocontrol/probiotic agents in aquaculture.
Fuente de carbono durante la histodiferenciación/maduración y su influencia en la conversion de embriones somáticos de soja
Authors: Souza Canada Eduardo Daniel , Mansilla Dario Fabián , Permingeat Hugo
Published: June 2019

La eficiencia de regeneración in vitro de plantas de soja mediante embriogénesis somática es una limitante importante cuando se requiere utilizar esta metodología en el fitomejoramiento de la especie. Se ha sugerido que esta limitación puede estar relacionada con la fase previa del cultivo in vitro: la histodiferenciación/maduración de los embriones somáticos. Este estudio tuvo como objetivo investigar cómo la concentración y tipo de la fuente de carbono en el medio de histodiferenciación/maduración afecta a la conversión de embriones somáticos maduros de dos variedades de soja, Jack y Williams 82. Para ello, los medios de histodiferenciación/maduración se complementaron con 6% de maltosa, 3% o 6% de sacarosa. Se analizó la inducción y la proliferación de embriones somáticos en cada variedad. Se cuantificaron los embriones histodiferenciados y madurados, y se analizaron las frecuencias de embriones convertidos en plántulas por variedad. La variedad Jack, aunque tuvo menor frecuencia de inducción, presentó un mayor número de embriones histodiferenciados y madurados así como una mayor frecuencia de conversión (27%) en relación a Williams 82 (10%). Un 6% de sacarosa en este medio de cultivo influyó significativamente mejorando el porcentaje de conversión de plántulas regeneradas.
Definición y caracterización de unidades ecológicas en el partido de Benito Juárez (Argentina): aportes para planificar el uso sustentable de los recursos
Authors: Sequeira Nahuel David , Vazquez Patricia , Zulaica Laura
Published: June 2019

El trabajo propone definir y caracterizar las unidades ecológicas (UEc) que conforman el partido de Benito Juárez; y establecer aquellas que, por sus principales limitantes, resultarían mayormente impactadas por el proceso de agriculturización de la región. La información se obtuvo de bases de datos de distintos organismos nacionales. Los resultados se representaron espacialmente mediante el software ArcGIS. Se delimitaron cinco UEc, con diferentes limitaciones: Sierras; Llanura periserrana y ondulada; Llanura ondulada, suavemente ondulada y deprimida; Llanura deprimida y Llanura deprimida con cursos de agua y áreas inundables. Esta última ocupa la mayor superficie (42,22%), y su vegetación natural fue en parte sustituida por cultivos, sin considerar sus importantes limitantes. Se espera que este estudio constituya un insumo para planificar el uso de los recursos en el marco del proceso de agriculturización en las distintas UEc que conforman el Partido.
Surgical Treatment for Septic Complications in Patients with Duodenal Perforation Following Endoscopic Retrograde Transpapillary Interventions
Authors: Korobka V. L. , Tolstopyatov S. V. , Shapovalov A. M.
Published: June 2019

Background The most severe clinical cases following transpapillary endoscopic interventions are duodenal perforation with damage to the common bile duct and pancreatic duct, entrance into the abdominal cavity and retroperitoneum the aggressive contents of intestine and the infections. They usually lead to higher mortality. Aim Evaluation of the optimal management for duodenal perforation in patients who have undergone transpapillary endoscopic interventions. Material and Methods A retrospective analysis of surgical treatment in thirty-two patients with duodenal perforation after transpapillary endoscopic interventions from the year 2007 to 2018 in one center was carried out. Nineteen cases (59.4%) were diagnosed less than 24 hours, 13 (40.6%) – more than 24 hours after injury. Twenty patients had the primary reconstruction of duodenum with various drainage options of injury area. In 19 cases there were a two-stage surgical procedure according the original method: 12 had a primary surgery, 7 were reoperated. Results After primary reconstruction of duodenum 11 patients (55.0%) had complications, seven (63.6%) – were re-operated, in four we have applied efferent treatments and symptomatic therapy. Three patients (15.8%) died. After two-stage surgery procedure 7 patients (36.8%) had surgical complications, five (26.3%) – were re-operated. Three patients (15.8%) – were died. Conclusion Primary duodenum reconstruction can be performed if the injury occurred less than 24 hours before surgery. Two-staged surgery is justified in cases with purulent inflammation in abdominum and reproperitoneal cavity because procedure allows reducing mortality from abdominal sepsis
Endovascular Treatment of Carotid Cavernous Fistulas in the Area of Cavernous Sinus
Authors: Beliy A. I. , Fedorchenko A. N. , Volkolup O. S. , Efimov V. V. , Suslov E. S. , Porhanov V. A.
Published: June 2019

Background Assessment of endovascular methods possibilities in the treatment for carotid-cavernous fistulas.
Material and Methods The results of endovascular treatment in 22 patients with carotid-cavernous fistulas in the period from 2008 to 2018 were evaluated. The number of male patients was 13 (59%), female patients – 9 (41%). Fifteen patients (68%) had traumatic damage, 7 patients developed a spontaneous disease. All patients had a specific clinical features of carotidcavernous fistula, confirmed by anamnesis and angiographic study. After verification of the diagnosis, all patients underwent permanent transcatheter embolization of the pathological connection using detachable balloons, microspirals and adhesive composition.
Results Twenty-one patients (95.5%) underwent one-stage embolization of carotid-cavernous fistulas. One patient (4.5%) required three procedures: two embolization with detachable balloons, final embolization with detachable spirals, due to deflation of the balloons in the early postoperative period. Destructive embolization of carotid-cavernous fistulas was performed in 2 cases (9%), reconstructive interventions were performed in 20 cases (91%). The angiographic success of the procedure was 100%. All treated patients had regression of symptoms during their hospital stay. During this period, one complication was identified in the form of post puncture hematoma, which required conservative treatment.
Conclusion Endovascular treatment is a modern, effective and safe method for treating carotid-cavernous fistulas. Destructive occlusion (if there is no possibility of performing reconstructive intervention) is also a safe and clinically justified method for treating this pathology.
Improvement of Surgical Treatment for Post-Ambustial Cicatrical Deformations Using Vacuum Therapy
Authors: Bogdanov S. B. , Marchenko D. N. , Polyakov A. V. , Karakulev A. V. , Aladyina V. A.
Published: June 2019

Background Improvement of treatment results in patients with cicatrical deformations by means of new surgical techniques and vacuum dressings is the aim of this study.
Material and Methods We described clinical results after vacuum therapy application for reconstructive surgical treatment after facial and cervical cicatrical deformation caused by burns. Patients underwent dissection of cicatrical blocks, and then we performed layer-by-layer autodermoplasty with further vacuum dressing placement.
Results Engraftment of tissue autotransplant took 507 days and we observed reliable clinical result.
Conclusions Vacuum therapy favours optimal conditions for rapid engraftment and adaptation layer-bylayer tissue autotransplants.
Treatment of Children with Chemical Burns of Esophagus with Various Etiology
Authors: Stryukovsky A. E. , Tarakanov V. A. , Starchenko V. M. , Pilipenko N. V. , Nadgeriev V. M. , Gritsenko A. Y. , Polyansky E. A. , Sidorenko S. A.
Published: June 2019

Background At present continuous growth of pathology after chemical burns of the esophagus (CBE) in children is observed. The lack of uniform statistical infor-mation about this pathology in domestic and foreign literature considerably complicates studying of that nosology.
The purpose of the present study is optimization of treat-ment techniques in children with chemical burns of the esophagus with various etiology and generalization of our own experience of treatment in this contin-gent of patients.
Material and Methods We have analyzed treatment techniques in 147 children with CBE with various etiology and severity for last decade. The gen-eral method of diagnosis was esophago-gastroscopy performed within the first day of hospitalization. Endoscopic examination showed following stages of CBE: I stage in 36 patients, II stage in 67 cases and 44 patients had III stage.
Results In children with I stage CBE erosive inflammatory process was controlled by conservative therapy in 10-14 days. This cohort of patients from 3-4 day of disease was considered outpatient. Patients with II stage CBE erosive inflammatory changes were treated by complex therapy on 21-23 day. There were surgical complications observed. Patients with III stage CBE referred in most severe condition. Length of conservative treatment for erosive inflammatory process was 1 month. In this group of patients we observed complications in 24 cases (16.3%) and bougienage was performed according to different techniques. Duration of bougienage varied from 3 to 24 months. Later on all children wereobserved out-patiently according to the place of residence.
Conclusions Performed therapy should be complex and differentiated re-garding the severity of trauma. Complex treatment technique designed in our hospital is quite efficient and could be recommended for clinical application. All children suffered from CBE are to be followed up regularly. Preventive medical check-up should include endoscopic examination, once every three months to avoid possible esophageal stenosis development. Preventive treatment for esophagitis is mandatory during the period of preventive medical check-up.
Replacement of the Large Joints Osteochondral Defects
Authors: Airapetov G. A. , Vorotnikov A. A.
Published: June 2019

Rationale Injuries and diseases of large joints occupy a leading place in the list of urgent problems in orthopedics. Various methods of treatment for this pathology are regularly offered in the literature, but most of them do not allow restoring a full-fledged hyaline cartilage.
Background To improve the results of organ-preserving treatment in patients with osteo-chondral defects of large joints.
Material А prospective study was conducted on 30 large animals (60 knee joints) aged 1.5 to 3 years. We divided the animals into 3 groups of 10 individuals (20 joints) in each, based on the method of replacement of the osteo-chondral defect. In all cases, a full-layer defect formed from the hyaline cartilage by a mill with a diameter of 4.5 mm, depth of 7 mm with the capture of the subchondral bone in the medial condyle of the right thigh. Artificial defects were restored by one of the following methods. The left joint was considered a control joint and the defect formed by the same technique was not filled.
Results The result was evaluated in 1 month, 3 months and 6 months viewing the nature and degree of defect filling. Specific volumes of such tissues as chondrocytes, cartilage matrix and the average depth of the defect from the thickness of the native cartilage were better in group 3, and connective tissue was less in group 3.
Conclusion In the group without defect replacement, the obtained data are comparable with the studies of other authors, according to which bone and cartilaginous defects practically do not regenerate on their own. Our proposed method with the use of extracellular collagen matrix, autocartilage and plate rich plasma is less aggressive in comparison with autochondroplasty and the result can be more stable compared to microfracturing or tunnelization.
Results of dynamic Follow-Up for Patients with Myocardial Infarction without Obstructive Lesion of Coronary Arteries: Data of the Overall Register for Acute Coronary Syndrome in Krasnodar Region
Authors: Kruchinova S. V. , Kosmacheva E. D. , Raff S. A. , Tatarintseva Z. G. , Porhanov V. A.
Published: June 2019

Background Myocardial infarction (MI) without obstructive lesion of coronary arteries (MINOCA) has incidence to 14%. Despite its high prevalence, MINOCA is paid not enough attention, therefore some patients can not receive appropriate treatment.
Aim Evaluating the long-term results of clinical observation in patients with MINOCA in
comparison with patients with obstructive damage and the subsequent revascularization of myocardium.
Material On the basis of Scientific Research Institute RCH – 1 the multicenter cohort observation was organized. Patients from the register CROCS (the register of acute coronary syndrome in Krasnodar Region) with the diagnosis MI were divided into two groups: MINOCA including patients without obstructive damage of coronary arteries and MINOCA including patients with obstructive injury and the subsequent stenting a heart attack connected artery. All patients in 12 months would have control assessment during which they had objective survey; electrocardiography; daily monitoring; test of six-minute walking, echocardiography.
Results In the MINOCA group in 12 months after the acute coronary event in 21.5% cases there were tension stenocardia, in 16.2% – a painless form of myocardial ischemia was revealed, in a group of patients with MINOCA stenocardia of tension was revealed at 12.5% and 8.4% – with painless ischemia. The group of patients with MINOCA is characterized by more reliable decrease in both parameters of heart rate variability, and turbulence of heart rate. MINOCA is followed by statistically significant increase in risk of ACS development and death within 12 months. All indicators had reliable difference.
Conclusion Patients with MINOCA are a special group, their differential characteristics demand definite diagnostic efforts.
Variasi Waktu dan Massa Ampas Kopi Pada Leaching Minyak Dari Residu Kopi Instan
Authors: Heru Heru , Hanif Muhammad
Published: June 2019

Kopi robusta adalah salah satu jenis tanaman perkebunan Indonesia yang dibudidayakan dan memiliki nilai ekonomis yang tinggi. Salah satu olahan kopi robusta adalah kopi instan. Ampas kopi instan belum dimanfaatkan maksimal dan hanya menjadi limbah padat perusahan kopi instan. Namun demikian, karena minyak tidak larut dalam air, kandungan minyak dalam ampas kopi masih tinggi. Penelitian ini bertujuan untuk mempelajari proses ekstraksi minyak dari ampas kopi instan menggunakan ekstraktor Soxhlet, dengan memvariasikan waktu dan massa ampas kopi instan. Hasil penelitian menunjukkan bahwa persentase ekstrak tidak berbeda signifikan untuk waktu ekstraksi selama 6, 7, dan 8 jam. Variasi massa ampas kopi dilakukan untuk waktu ekstraksi 6 dan 8 jam dan diamati bahwa variasi massa ampas kopi (15, 20, dan 25 g) secara umum signifikan terhadap hasil ekstrak yang diperoleh, namun tidak signifikan pada massa ampas kopi 15 g dengan waktu ekstraksi 6 dan 8 jam.
Продуктивность виноградников с различными формами кустов при полуукрывной культуре возделывания
Authors: Sirotkina Nadezhda , Buival Roman
Published: June 2019

В статье приведены данные исследований трех форм виноградных растений при полуукрывной культуре возделывания за 2005-2012 гг. На винограде сорта Первенец Магарача изучались формы: двусторонний косой кордон, односторонний горизонтальный кордон с резервным рукавом, двусторонний горизонтальный кордон с резервным рукавом. Виноградники 1986 года посадки, корнесобственные, неорошаемые, с площадью питания 3 х 1,5 м. В среднем за годы исследований по продуктивности насаждений выделена форма кустов «двусторонний горизонтальный кордон с резервным рукавом». Урожайность виноградников составила 14,2 т/га за счет более высокой нагрузки растений плодоносными побегами и их плодоносности.

The article summarizes data from the study conducted in 2005-2012 on three shapes of vine plants under semi-covered vine growing. The following shapes were studied on the cultivar ‘Pervenets Magaracha’: bilateral oblique cordon, unilateral horizontal cordon with a reserve arm, bilateral horizontal cordon with a reserve arm. The vineyards’ profile: planted in 1986, own-rooted, non-irrigated, with the growing space of 3 x 1.5 m. On average, the vine trained as bilateral horizontal cordon with reserve arm stood out over the years of plantation productivity studies. The harvest of the vineyards amounted to 14.2 t/ha due to higher load of plants with fertile shoots and their fruitfulness.
Вариации водного потенциала листьев винограда различного происхождения в условиях Крыма (2014-2017 гг.)
Authors: Stamatidi Vladimir , Volynkin Vladimir
Published: June 2019

Приведены результаты мониторинга водных потенциалов листьев (ВП) шести сортов винограда в условиях юго-западной Предгорно-приморской зоны Крыма. Измерения ВП проводили по Сколандеру при помощи камеры давления. Установлено, что значения ВП за все годы мониторинга в течение вегетации постепенно увеличивались по модулю вплоть до начала созревания. Наиболее резкое увеличение ВП по модулю наблюдалось в начале созревания ягод, с последующим небольшим снижением в сентябре. В июне каждого года предутренние значения водных потенциалов составляли порядка -0.1 МПа, в июле около - 0.3 МПа, в августе - 0.6 МПа, в сентябре -0.5 МПа. Аналогичные изменения имеют место и у послеполуденных значений водных потенциалов: в июне они составляют порядка -1.0 МПа, в июле - 1.3 МПа, в августе - 1.5 МПа, в сентябре -1.4 МПа. Установлена достоверная разница в послеполуденных значениях ВП между сортами Мускат белый - Цитронный Магарача, Мускат черный - Альминский. Сортовые различия были статистически достоверными в 75% случаев (три года из четырех лет исследований). Сделан вывод, что в условиях высоких температур и засухи растения сортов Цитронный Магарача и Альминский испытывают меньший водный стресс, чем Мускат белый и Мускат черный. Результаты исследований не выявили разницу между предутренними и послеполуденными водными потенциалами у сортов Рислинг рейнский - Рислинг Магарача.

The article summarizes monitoring data on leaf water potential (WP) of six grapevine cultivars in the south-western piedmont-coastal zone of Crimea. WP has been measured in a pressure chamber using Scolander method. It was established that WP values over all the years of monitoring during the vegetation season gradually increased in absolute value until veraison. The most dramatic WP increase in absolute value was observed at veraison, followed by a slight decrease in September. In June of each year, the pre-dawn water potential values were around -0.1 MPa, in July around - 0.3 MPa, in August - 0.6 MPa, in September -0.5 MPa. The afternoon water potential values demonstrated similar changes: in June they were around -1.0 MPa, in July - 1.3 MPa, in August - 1.5 MPa, in September - 1.4 MPa. A significant difference was established in the afternoon WP values between varieties “Muscat Belyi’ - “Tsitronny Magaracha”, “Muscat Chernyi’ - ‘Alminsky’. Varietal differences were statistically significant in 75% of cases (three years out of four years of research). It was found that under high temperatures and drought conditions, plants of the cultivars ‘Tsitronny Magaracha’ and ‘Alminsky’ undergo less water stress as compared to ‘Muscat Belyi’ and ‘Muscat Chernyi’. The study results did not reveal any difference between the predawn and afternoon water potentials of ‘Riesling of the Rhine’ - ‘Riesling Magaracha’ cultivars.
IMPLEMENTASI INTERAKSI PEDAGOGIK GURU DAN SISWA DI KELAS 4 SD MUHAMMADIYAH TASIKMALAYA
Authors: Hendrawan Budi , Nurlatifah Dini , Tutiareni Teni
Published: June 2019

Penelitian ini bertujuan untuk mengetahui implementasi interaksi pedagogik antara guru dan siswa di kelas 4 SD Muhammadiyah Tasikmalaya. Penelitian ini menggunakan metode deskriptif analitik dengan pendekatan kualitatif dan pendekatan studi kasus. Lokasi penelitian yaitu di kelas 4 SD Muhammadiyah Tasikmalaya. Hasil temuan menunjukkan: 1). Peran guru dalam menciptakan rasa tenang pada didik, sudah terjadi dengan baik, tercermin dari hasil pengamatan kegiatan pembelajaran yang telah dilaksanakan membuktika sebagian responden siswa merasa aman dan nyaman ketika pembelajaran berlangsung dan di lingkungan sekolah.; 2). Munculnya sifat wibawa dari guru yang memberikan efek positif bagi terselenggaranya interaksi pedagogis baik dalam pembelajaran maupun di luar kegiatan pembelajaran; 3) Kesediaan pendidik membantu anak didik, tercermin dengan jelas dari kegiatan guru selama pembelajaran dengan proses bimbingan kepada siswa selama pembelajaran dan di luar kelas; 4) memperhatikan minat anak menjadi salah satu nilai positif yang diperoleh dari hasil penelitian yang dilaksanakan, dengan melibatkan siswa pada semua kegiatan khusunya pembelajaran di kelas, siswa secara aktif memberikan kontribusi karenaengelolaan lingkungan belajar yang sesuai dengan perkembangan siswa di kelas. Oleh karena itu, dapat ditarik kesimpulan berdasarkan indicator yang telah ditetapkan dan hasil penelitian yang dilakukan diperoleh interaksi pedagogis guru dan siswa di kelas 4 SD Muhammadiyah Tasikmalaya telah terlaksana dengan baik.
MANAJEMEN PEMBELAJARAN AL-QUR’AN DI MADRASAH IBTIDAIYAH PLUS JA-ALHAG KOTA BENGKULU
Authors: SURADI AHMAD
Published: June 2019

This research is about how to manage of reading and writing Al-Qur'an in Madrasah Ibtidaiyah Plus Ja-alhak Bengkulu. This research method is descriptive qualitative, that is analyzing and presenting facts systematically. With the aim of systematically and accurately describing the facts and characteristics of the management of Koran reading and writing in Madrasah Ibtidaiyah Plus Ja-Alhak. The result of this research is the learning management of reading al-Qur'an especially in MI Plus Ja-alhak has been running well, proved by the learning process which is in accordance with the existing teaching system such as: introductory activity, core activities and cover of learning. In addition, the evaluation of learning for both students and teachers is conducted regularly. The evaluation model implemented in MI Plus Ja-alhak Bengkulu is an effort to support the improvement of the quality of learning which includes the quality of students and the quality of teachers.
PENINGKATAN KERJASAMA DAN HASIL BELAJAR TEMATIK MELALUI MODEL PEMBELAJARAN PROBLEM BASED LEARNING
Authors: Ajria Naila Filahatin , Ismanto Bambang , Kristin Firosalia
Published: June 2019

This research aims to: (1) to increase cooperation and thematic learning outcomes (knowledge, attitudes, and skills) grade IV SDN Blotongan 02 learning through Problem Based Learning; and (2) to describe the increase in cooperation and thematic learning outcomes (knowledge, attitudes, and skills) grade IV SDN Blotongan 02 learning through Problem Based Learning.. The type of research used is classroom action research with research subjects, namely fourth grade students of Blotongan 02 State Elementary School, totaling 34 students. Data collection techniques include observation, documentation, and written tests. Data analysis in this study uses the descriptive analysis of the qualitative and quantitative comparative analysis. On condition of prasiklus, the cooperation of students not yet optimal. After research, obtained the cooperation activities of students in cycle I, from 34 students there were 8 students (23.53%) reach the predicate "very good", 18 students (52.94%) with the predicate "very good", 6 students (17.65%) with the predicate "good enough", and there are still 2 students (5.88%) with the predicate "less good". In cycle II, there are 17 students (50.00%) reach the predicate "very good", 12 students (35.29%) with the predicate "very good", 5 students (14.71%) with the predicate "good enough", and 0.00% of students with "less good". In addition, based on the research data were also obtained the thematic learning outcomes of students on the Indonesian language cycle I (70.59%) cycle II (85.29%), science cycle I (64.71%) cycle II (76.47%), IPS cycle I (73.53%) cycle II (88.241%). Based on the results of the study it can be concluded that there is an increase in cooperation and student thematic learning outcomes through the problem based learning model.
NILAI KARAKTER RAJA SUMEDANG DALAM SASAKALA DARMARAJA
Authors: Mandela Windu
Published: June 2019

Ada 18 nilai karakter yang dikeluarkan oleh Kementerian Pendidikan Nasional (Kemendinas). Nilai karakter tersebut tertuang dalam cerita rakyat yang berkembang di masyarakat. Karakter adalah hal penting dalam pendidikan. Manusia yang memiliki karakter akan membawa dampak yang baik bagi dirinya, agama, bahkan bagi bangsa dan negaranya. Melimpahnya cerita rakyat  hendaknya menjadi sebuah alternative bahan ajar di sekolah. Sasakala Darmaraja, adalah salahsatu cerita rakyat yang berkembang di Kabupaten Sumedang. Jenis kajian yang dilakukan adalah kualitatif-deskriptif. Peneliti menelaah dengan mendeskripsikan bagian-bagian cerita sehingga didapat tiga buah nilai karakter. Nilai karakter tersebut adalah, semangat kebangsaan, kerja keras, dan tanggung-jawab. Di tengah gempuran budaya asing melalui perkembangan teknologi dan informasi, hendaknya kearifan lokal ini dapat menjadi filter.
MINAT BELAJAR MAHASISWA PGSD PADA MATA KULIAH KONSEP DASAR IPA (Penelitian Deskriptif Kualitatif di Prodi PGSD Universitas Muhammadiyah Tasikmalaya)
Authors: Nugraha Mohammad Fahmi , Hendrawan Budi
Published: June 2019

This study uses descriptive qualitative research with case study approach, according to Kumar (1999), a case study is an approach to examine social phenomena through the analysis of individual cases completely and accurately, as well as providing an analysis of intensive than many specific details that are often overlooked by Other research methods. Meanwhile, according to Pollit and Hungler (1999) interpret the case study as a research method that uses in-depth analysis, which is done carefully and completely to an individual, family, group, institution, or other social units. The results showed interest in learning PGSD students on the course the basic concepts of science is low, the study documentation on the midtest course the basic concepts of science and interviews explaining there are several factors that affect low interest student learning is the educational background of students, the ability of lecturers, weight and material science courses basic concepts, means of supporting lectures and lecture schedule.
PENINGKATAN KEAKTIFAN DAN HASIL BELAJAR IPA PADA PEMBELAJARAN TEMATIK MENGGUNAKAN PBL
Authors: Pramudya Erviyanti , Kristin Firosalia , Anugraheni Indri
Published: June 2019

The purpose of this research is to explain the steps of Problem Based Learning model to increase student involvement in learning and the result of the learning, knowing the enhancement of the student involved, and knowing the growth of student’s learning result. The form of this research is Classroom Action Research which it should be done in two cycles. This research has been done in First Noborejo National Elementary School and the subject of this research is fourth-grade students consists of 34 people. The data collection technic of this research is using test and non-test technic. The technic that we used to analyze all the data is quantitative and qualitative descriptive analysis. The result of this research showing that applying steps of Problem Based Learning Model which is orientated student on the problem, organizing student to learn, guide the individual and social experience, developing and providing masterpiece of the student, also analyzing and evaluating problem-solving process, an increased student involved and science learning outcomes in thematic learning on fourth grade student of First Noborejo National Elementary School. The proof of this research’s result is the growth of students involved from their first condition (pre-cycle) which was 77,47 and categorized as less active and after using this model, for the first cycle, it increased and reached 95,44 with category pretty active. In the second cycle, the average of the student involved increased become 118,32 with category active. The student learning outcomes also increased with the first learning outcomes average (pre-cycle) is 62,17 and only 13 students that pass the test (38,23%). It becomes better with the average grades of student’s learning outcomes is 78,39 and 23 students passed the test (67,64%). On the second cycle, the average grades of the student learning outcomes are 83,29 and 28 students passed the test (82,36).
PENERAPAN MODEL PEMBELAJARAN TPS (THINK PAIR SHARE) DALAM RANGKA MENINGKATKAN KETERAMPILAN KOMUNIKASI SISWA KELAS 3
Authors: Rianingsih Dewi , Mawardi Mawardi , Wardani Krisma Widi
Published: June 2019

The purpose of this study  is to improve the communication skills of students through the TPS (Think Pair Share) learning model. the results of observations show communication skills of grade 3 students in SDN Ledok 05 Salatiga is still low. the results of interviews with grade 3 teachers from 29 students in the High category only about 31% who dared to present or communicate in front of the class with confidence. While in the medium category only 24% and 45% of other students in the low category are still afraid if they get the opportunity to communicate to appear in public or in front of the class. The research method uses PTK (Class Action Research). Techniques for collecting data through observation, interviews, questionnaires. The instruments used are indicators of five components of interpersonal or interpersonal communication skills which include openness, empathy, supportive attitude, positive attitude, equality. Research uses quantitative descriptive. The results showed that the first cycle of the high category had a frequency of 18 with a percentage of 62%, medium category frequency 6 and a percentage of 21%, and a low category 5 with a percentage of 17%. Whereas for the second cycle the high frequency category was 20 with a percentage of 69%, medium category 8 with 28%, and low category 1 with a percentage of 3%. Class 3 communication skills at SDN Ledok 05 Salatiga increased after using TPS (Think Pair Share) models.
A silver-nanoparticle/cellulose-nanofiber composite as a highly effective substrate for surface-enhanced Raman spectroscopy
Authors: Lu Yongxin , Luo Yan , Lin Zehao , Huang Jianguo
Published: June 2019

A highly active surface-enhanced Raman scattering (SERS) substrate was developed by facile deposition of silver nanoparticles onto cellulose fibers of ordinary laboratory filter paper. This was achieved by means of the silver mirror reaction in a manner to control both the size of the silver nanoparticles and the silver density of the substrate. This paper-based substrate is composed of a particle-on-fiber structure with the unique three-dimensional network morphology of the cellulose matrix. For such a SERS substrate with optimized size of the silver nanoparticles (ca. 70 nm) and loading density of silver (17.28 wt %), a remarkable detection limit down to the sub-attomolar (1 × 10−16 M) level and an enhancement factor of 3 × 106 were achieved by using Rhodamine 6G as the analyte. Moreover, this substrate was applied to monitor the molecular recognition through multiple hydrogen bonds in between nucleosides of adenosine and thymidine. This low-cost, highly sensitive, and biocompatible paper-based SERS substrate holds considerable potentials for the detection and analyses of chemical and biomolecular species.
On the relaxation time of interacting superparamagnetic nanoparticles and implications for magnetic fluid hyperthermia
Authors: Kuncser Andrei , Iacob Nicusor , Kuncser Victor E
Published: June 2019

A critical discussion on the presently available models for the relaxation time of magnetic nanoparticles approaching the superparamagnetic regime in the presence of interparticle dipolar interactions is considered. The direct implications of such interactions for magnetic fluid hyperthermia therapy through susceptibility loss mechanisms give rise to an indirect method for their study via specific absorption rate measurements performed on ferrofluids of different volume fractions. The theoretical support for the specific evolution of the relaxation time constant and the anisotropy energy barrier versus the interparticle interactions in a perturbation approach of the simple Néel expression for the relaxation time is provided via static and time-dependent micromagnetic simulations.
Green synthesis of manganese zinc ferrite nanoparticles and their application as nanofertilizers for Cucurbita pepo L.
Authors: Shebl Ahmed , Hassan Amr , Salama Dina , Abd El-Aziz Mahmoud Essam , Abd Elwahed Mohamed
Published: June 2019

This study aims to synthesize manganese zinc ferrite nanoparticles (Mn0.5Zn0.5Fe2O4 NPs) using a green chemistry synthesis technique and investigate their efficiency as nanofertilizers for squash plant (Cucurbita pepo L). In this work, Mn0.5Zn0.5Fe2O4 NPs were successfully prepared at different temperatures via simple template-free microwave-assisted hydrothermal route and used as foliar nanofertilizers for squash plant. The physicochemical characteristics of the as-prepared ferrites were investigated using X-ray diffraction (XRD), N2 adsorption-desorption isotherm, field emission scanning electron microscopy (FE-SEM) and high resolution transmission electron microscopy (HR-TEM) techniques. The prepared nanoferrites showed type IV adsorption isotherm characteristic for mesoporous materials. FE-SEM and HR-TEM imaging proves the production cubic shaped nanoparticles with average particle size 10-12 nm. Also the impact of using different concentrations of Mn0.5Zn0.5Fe2O4 NPs on vegetative growth, minerals content and the yield of squash plant were investigated. The result showed that the highest vegetative growth for squash appeared with plants supplied by Mn0.5Zn0.5Fe2O4 NPs synthesized at 180°C. On the contrary, the yield of squash recorded the best with 160°C. As for the use of different concentrations of Mn0.5Zn0.5Fe2O4 NPs, it was found that the use of the lowest concentrations gave the highest values of vegetative growth and yield characters. The chemical content of the squash plant differs from the components of proximate value and the elements according to the temperature used in the composition of the compound Mn0.5Zn0.5Fe2O4 NPs and its concentrations. Accordingly, these nanoferrites can be considered as good candidates for Cucurbita pepo L fertilization.
Excited State Dynamics for Visible Light Sensitization of Fast Photochromic Phenoxyl-Imidazolyl Radical Complex with Aryl Ketone
Authors: Kobayashi Yoichi , Mamiya Yukie , Mutoh Katsuya , Sotome Hikaru , Koga Masafumi , Miyasaka Hiroshi , Abe Jiro
Published: June 2019

Visible light sensitized photoswitches have been paid particular attention in the fields of life science and materials science because long-wavelength light reduces photodegradation, transmits deep inside of matters, and achieves the selective excitation in condensed systems.Among various photoswitch molecules, phenoxyl-imidazolyl radical complex (PIC) is a recently developed thermally-reversible photochromic molecule whose thermal back reaction can be tuned from tens of nanoseconds to tens of seconds by rational designs of the molecular structure. While the wide range of tunability of the switching speed of PIC opened up various potential applications, no photosensitivity to visible light limits its applications. In this study, we synthesized a visible light sensitized PIC derivative conjugated with a benzil unit. Femtosecond transient absorption spectroscopy revealed that the benzil unit acts as a singlet photosensitizer for PIC by the Dexter-type energy transfer. Visible light sensitized photochromic reactions of PIC are important for expanding the versatility of potential applications to life science and material science.
Double Detonations with Thin, Modestly Enriched Helium Layers can Make Normal Type Ia Supernovae
Authors: Townsley Dean M. , Miles Broxton J. , Shen Ken J. , Kasen Daniel
Published: June 2019

It has been proposed that SNe Ia that are normal in their spectra and brightness can be explained by a double detonation that ignites first in a helium shell on the surface of the white dwarf (WD). This proposition is supported by the satisfactory match between simulated explosions of sub-Chandrasekhar-mass WDs with no surface He layer and observations of normal SNe Ia. However, previous calculations of He-ignited double detonations have required either the artificial removal of the He shell ashes or extreme enrichment of the surface He layer in order to obtain normal SNe Ia. Here we demonstrate, for the first time in multi-dimensional full-star simulations, that a thin, modestly enriched He layer will lead to a SN Ia that is normal in its brightness and spectra. This strengthens the case for double detonations as a major contributing channel to the population of normal SNe Ia.