bluuebunny/crossref_metadata_2025_split huggingface dataset:
Synthesis and Antimicrobial Activity of Some New N-(1H-benzimidazol-2- yl)-2-mercaptoacetamide Derivatives
Authors: Evren Asaf Evrim , Tekinkoca Sinem , Yurttas Leyla 
Published: June 2017

Background:
Due to multi-drug, extended-drug, and pandrug resistance phenotypes,
bacterial resistance to antibiotics and fungal infections are a general health issue. Particulary,
increase of fungal infections due to secondary cause of human diseases have been observed. An
extensive variety of benzimidazole derivatives have been characterized for their chemotherapeutic
significance. Benzimidazole derivatives have received important attention because of pharmacological
significance during current years, especially antimicrobial, anti-fungal, antitubercular, antioxidant,
anti-Alzheimer's disease and antihypertension activities.

Methods:
Some N-(1H-benzimidazol-2-yl)-2-mercaptoacetamide derivatives (2a-h) were
synthesised and evaluated for their antimicrobial activity. The title compounds were gained by
reacting N-(1H-benzimidazol-2-yl)-2-chloroacetamide with some substituted 2-mercapto heterocyclic
rings. The synthesised compounds were investigated for their antimicrobial activities against
C. albicans (ATCC 24433), C. krusei (ATCC 6258), C. glabrata (ATCC90030), C. parapsilosis
(ATCC 22019), E. coli (ATCC 25922), E. coli (ATCC 35218), E. feacalis (ATCC 51299),
E. feacalis (ATCC 29212), S. aureus (ATCC 25923), K. pneumoniae (ATCC 700603),
P. aeruginosa (ATCC 27853).

Results:
The compounds showed high antifungal activity when compared with standard drug
ketoconazole. In addition, all compounds (MIC 100 µg/mL) showed inhibitor activity against
P. aeruginosa at two fold concentration of chloramphenicol (MIC 50 µg/mL). Also, compounds 2a,
2c and 2e (MIC: 50 µg/mL) have equal effect against E. coli (ATCC 35218) and more effective
than other compounds (MIC of chloramphenicol: 100 µg/mL).

Conclusıon:
All compounds showed notable activity. Compounds have determined to possess higher
antifungal activity than antibacterial activity. Additionally, compounds 2a with 1-methyltetrazole,
2c with benzothiazole and 2e with 6-chlorobenzothiazole moieties were found as the most active
compounds.
Coronary Perforation of Distal Diagonal Branch Followed by Prolonged Recurrent Cardiac Tamponade Finally Resolved with Pericardiotomy - the Potential Risk of Hydrophilic Guide-Wires
Authors: Januszek Rafał , Bartuś Krzysztof , Litwinowicz Radosław , Dziewierz Artur , Rzeszutko Łukasz 
Published: June 2017

Purpose:
Coronary artery perforation (CAP) is a complication of percutaneous coronary interventions (PCIs). Hydrophilic guide-wires have been shown to increase the probability of CAP. Depending on the size of perforations we adopt different treatments.

Case:
We present the case of a 73-year old male with coronary artery disease and severe aortic valve stenosis. The patient was in the process of qualifying for a transcatheter aortic valve implantation. Unfortunately, CAP of the first diagonal branch of the LAD occurred during PCI. Initially, abrupt bleeding to the pericardial sac was primarily restrained. However, in the following days, pericardial bleeding became silent, prolonged and finally resulted in surgical pericardiotomy and surgical aortic valve replacement.

Conclusion:
This case depicts that in some cases, more aggressive endovascular treatment of CAP during the acute phase could decrease the probability of future radical surgical treatment. Although, in other cases, avoiding radical endovascular treatment of CAP and secondary necrosis along the distribution of the artery culminates in a higher risk for conversion to a surgical cardiac procedure. Accurate primary assessment of CAP seriousness and careful observation after PCI could improve results and lead to avoiding severe complications.
The method of diagnosis and classification of the gingival line defects of the teeth hard tissues
Authors: Bulbuk Olena , Rozhko Mykola , Bulbuk Oleksandr 
Published: June 2017

For solving the problem of diagnosis and treatment of hard tissue defects the significant role belongs to the choice of tactics for dental treatment of hard tissue defects located in the gingival line of any tooth.This work aims to study the problems of diagnosis and classification of gingival line defects of the teeth hard tissues. That will contribute to the objectification of differentiated diagnostic and therapeutic approaches in the dental treatment of various clinical variants of these defects localization.The objective of the study – is to develop the anatomical-functional classification for differentiated estimation of hard tissue defects in the gingival part, as the basis for the application of differential diagnostic-therapeutic approaches to the dental treatment of hard tissue defects disposed in the gingival part of any tooth.Materials and methods of investigation: There was conducted the examination of 48 patients with hard tissue defects located in the gingival part of any tooth. To assess the magnitude of gingival line destruction the periodontal probe and X-ray examination were used.Results. The result of the performed research the classification of the gingival line defects of the hard tissues was offered using exponent power. The value of this indicator is equal to an integer number expressed in millimeters of distance from the epithelial attachment to the cavity’s bottom of defect.Conclusions. The proposed classification fills an obvious gap in academic representations about hard tissue defects located in the gingival part of any tooth. Also it offers the prospects of consensus on differentiated diagnostic-therapeutic approaches in different clinical variants of location. This classification builds methodological “bridge of continuity” between therapeutic and prosthetic dentistry in the field of treatment of the gingival line defects of dental hard tissues.
Експериментальне моделювання вибухових переломів грудопоперекового відділу хребта
Authors: Radchenko V.A. , Popsuyshapka K.A. , Karpinsky M.Yu. , Karpinska E.D. , Teslenko S.A. 
Published: June 2017

Актуальність. Вибухові переломи тіл нижньогрудного та поперекового відділів хребта є найбільш розповсюдженими серед усіх пошкоджень та становлять, за даними різних авторів, від 20 до 40 % усіх пошкоджень хребта. Мета: вивчити біомеханічні характеристики кіфотичної деформації в залежності від прикладеного осьового стискаючого навантаження, що діє вздовж усього хребта, та ступеня пошкодження хребтових структур. Матеріали та методи. Біомеханічна фізична модель вибухового перелому тіла Th12 хребця, що була виконана на анатомічних препаратах блоків хребтових сегментів тварини (свині). У першій групі збережені кісткові і зв’язкові структури. У другій зруйновано до 50 % тіла хребця. У третій зруйновано усе тіло (100 %) та два суміжних диска. У четвертій зруйновано 100 % тіла, диски, дуги, зв’язки і суглоби. Результати. У залежності від ступеня руйнування хребтово-рухового сегмента Тh12 загальний модуль пружності моделі зменшується за рахунок випадання з опорної функції елементів сегмента. Максимальний модуль пружності має модель із незруйнованими структурами при всіх видах навантажень. Зменшення модуля пружності до граничних величин досягалося в зразках зі зруйнованим тілом хребця, диска, задніх структур при середніх та максимальних навантаженнях. Даний вид моделі є максимально нестабільним, з відсутнім модулем пружності. Висновки. При збільшенні обсягу руйнувань хребтово-рухового сегмента Th12 величина осьового стискання моделі під дією стискаючих навантажень статистично достовірно збільшується при всіх величинах стискаючої сили. Залежно від ступеня руйнування хребтово-рухового сегмента Th12 модуль загальної деформації моделі зменшується. Порушення міцності моделі відбулося на етапі руйнування 50 % тіла хребця та вищерозміщеного міжхребцевого диска при інтенсивності навантаження 100 Н. Зі збільшенням ступеня руйнування зразок втрачає здатність опиратися зростаючим навантаженням, що підтверджується зменшенням модуля загальної деформації досліджуваних зразків.
Учений-дослідник Дмитро Яворницький у колі медиків
Authors: Chaban M.P. , Shevtsova Z.I. , Gaponov V.V. 
Published: June 2017

Проведено вивчення стосунків дослідника запорозького козацтва академіка Дмитра Яворницького з представниками медичної спільноти. Відображено вплив Д. Яворницького на формування світогляду та громадянської позиції медиків. Наведено відомості про життєвий шлях, професійну та громадську діяльність найбільш колоритних постатей медичних працівників з оточення Дмитра Яворницького.
ANTIOXIDANT ACTIVITY FROM TEN SPECIES OF MYRTACEAE
Authors: Ramadhania Zelika Mega , Insanu Muhamad , Gunarti Neni Sri , Wirasutisna Komar Ruslan , Sukrasno Sukrasno , Hartati Rika 
Published: June 2017

Objective:Antioxidants are compounds that can inhibit free radical reactivity. They become very interesting to be observed because they can prevent some diseases like goat arthritis, cancer, cardiovascular disease, Alzheimer’s disease, macular degeneration etc. Since Indonesia is rich for its biodiversity, there are a lot of plants that have potential to be developed as new alternative antioxidants. The aim of this research was to evaluate antioxidant activity from ten species of myrtaceae (Syzygium cumini, S. samarangense, S. aqueum, S. aromaticum, S. polyantum, S. jambos, S. malaccense, Psidium guajava, Eucalyptus deglupta and Melaleuca leucadendra).Methods:Continuous extraction with Soxhlet apparatus was selected as extraction method. Three solvents (n-hexane, ethyl acetate and methanol) with different polarity were used in this process. DPPH (2,2-diphenyl-1-picrylhydrazyl) radical scavenging activity were used to evaluate antioxidant activity with ascorbic acid as a standard drug.Results:Based on the experiments, methanol extracts showed higher activity than other extracts with their IC50was below than 25 µg/ml.The lowest IC50 was exhibited by methanol extract of S. jambos, which was 7.8 µg/ml.Conclusion:It can be concluded that S. jambos is potential to be developed as a new alternative antioxidant.
Centro de Investigación y Desarrollo Tecnológico en Electroquímica, S.C.
Authors: Medina Portillo Liliana 
Published: June 2017

<p class="p1"><strong>RESUMEN: </strong>El Centro de Investigación y Desarrollo Tecnológico en Electroquímica, S.C., fue fundado en septiembre de 1991. Su creación obedece a la necesidad de vincular la industria con la academia y la investigación. Cuenta con una sede localizada en Sanfandila, Pedro Escobedo, a sólo 30 km. de la ciudad de Querétaro, una subsede en Tijuana, B.C., en el Consorcio Tecnológico de Baja California y una oficina de vinculación en la zona conurbada de Corregidora, Qro. Forma parte del Organismo de Transferencia de Tecnología – OTT. SinerTec OTT creado para integrar las capacidades científicas y tecnológicas, así como para operar de manera óptima y eficiente los procesos de las entidades participantes. </p><p class="p2">Nuestros investigadores, quienes forman parte del SNI, dedican sus investigaciones al desarrollo e innovación relacionado con nanotecnología, lo que nos permite dar respuestas a la sociedad en temas que van desde salud, cuidado del medio ambiente, recubrimientos y celdas solares. </p><p class="p2">El CIDETEQ ofrece posgrados en electroquímica, y en ciencia y tecnología en ingeniería ambiental desde 2003. Contamos con un importante acervo de publicaciones arbitradas, solicitudes de patentes y patentes. </p>
Mundo Nano. Revista Interdisciplinaria en Nanociencias y Nanotecnología, Vol. 9 No. 17 julio-diciembre 2016
Authors: UNAM CEIICH 
Published: June 2017

<p class="p1">El <em>Catálogo nacional de instituciones de investigación con actividades en nanociencias y nanotecnología </em>es una iniciativa de nanoUNAM, consorcio académico de la UNAM integrado en 2009 por el Centro de Ciencias Aplicadas y Desarrollo Tecnológico (CCADET), el Centro de Nanociencias y Nanotecnología (CNyN) y el Centro de Investigaciones Interdisciplinarias en Ciencias y Humanidades (CEIICH). nanoUNAM está interesado desde sus orígenes en impulsar el diálogo interdisciplinario de alta calidad sobre los avances, promesas e implicaciones de las nanociencias y la nanotecnología (NyN) con el objeto de enriquecer la toma de decisiones nacionales referentes a la maximización y distribución de beneficios, la definición de responsabilidades y la minimización de costos innecesarios o no deseados; razón por la cual está integrado por entidades, tanto del subsistema de la Investigación Científica como del subsistema de Humanidades. </p>
On the choice of contact parameters for the forced response calculation of a bladed disk with underplatform dampers
Authors: Gastaldi Chiara , Grossi Emanuele , Berruti Teresa M. 
Published: June 2017

AbstractUnderplatform dampers (UPDs) are still in use to reduce the vibration amplitude of turbine blades and to shift the position of resonant frequencies. The dynamics of blades with UPDs is nonlinear and the analysis is challenging from both the experimental and the numerical point of view. A key point in obtaining a predictive numerical tool is the choice of the correct contact parameters (contact stiffness and friction coefficient) that are required as input to the contact model. The paper presents different approaches to choose these parameters: the contact stiffness in normal and tangential direction are both calculated and measured. The calculation is based on the analytical models in literature, the measurements are carried out on a dedicated test rig. The friction coefficient is also measured. Test results of the forced response of the same bladed disk with UPDs are available for each blade, they come from an experimental campaign under controlled excitation and centrifugal force. The forced response of the bladed disk is not used as a mean to tune the contact parameters, but rather as a validation tool: the effect of the different choices of contact parameters in the code is highlighted by the comparison of the calculated and experimental forced response of the bladed disk.
Opettajaopiskelijoiden äänioireet ja niiden yhteys koettuun psykososiaaliseen haittaan sekä arvioon omasta äänenlaadusta – eri opettajankoulutusalojen vertailu
Authors: Britschgi Roosa , Sellman Jaana 
Published: June 2017

Tämä tutkimus tarkastelee eri opettajankoulutusalojen opiskelijoiden äänioireita, heidän äänensä vuoksi kokemaa psykososiaalista haittaa sekä kokemusta oman äänensä häiriöisyydestä. Eri oppiaineiden opettamiseen liittyy erilaisia kuormittavia tekijöitä ja joidenkin alojen opettajilla on havaittu muita enemmän äänioireita. Opettajaopiskelijoiden on todettu kokevan jo opiskeluvaiheessa muita yliopisto-opiskelijoita enemmän äänioireita, mutta sitä, esiintyykö jonkin oppiaineen opettajaopiskelijoilla enemmän äänioireita jo opiskeluvaiheessa, ei ole aiemmin vertailtu. Aiemmassa tutkimuksessa äänioireiden ja psykososiaalisen haitan väliltä on löydetty tilastollinen yhteys, mutta suomalaistutkimuksissa tätä yhteyttä ei ole aiemmin tarkasteltu. Tähän kyselytutkimukseen osallistui 190 Helsingin yliopiston opettajankoulutuslaitoksen kuuden eri koulutusalan opiskelijaa kaikilta vuosikursseilta. Aineisto kerättiin sähköisellä kyselylomakkeella, joka sisälsi äänioirekyselyn, psykososiaalista haittaa kartoittavan VHI-kyselyn sekä taustatietokyselyn. Tutkimus osoitti, että lähes 40 %: ia opettajankoulutuslaitoksen opiskelijoista kokee säännöllisiä äänioireita. Tutkimuksessa havaittiin kuitenkin, että säännöllisistä äänioireistaan huolimatta useimmat (80 %) opiskelijat pitävät ääntään normaalina eikä suurin osa (90 %) kokenut äänensä vuoksi mainittavaa psykososiaalista haittaa. Eri koulutusalojen välillä ei ollut havaittavissa eroja äänioireiden tai psykososiaalisen haitan määrässä.
Reproductive Season of the Scalloped Spiny Lobster Panulirus homarus Along the Coast of Oman: Management Implications
Authors: Al-Marzouqi Abdulaziz , Groeneveld Johan C. , Al-Nahdi Abdullah , Al-Hosni Ahmed 
Published: June 2017

The spiny lobster Panulirus homarus is widely distributed in the Indo-West Pacific. Along the coast of Oman it supports an artisanal fishery using traps and tangle nets. The egg-bearing incidence of females caught between 1989 and 2006 were analysed relative to month, lobster size and location of capture. The smallest female with external eggs had a carapace length (CL) of 54.6 mm, but only 9–18% of females of 60–69 mm CL carried eggs. This percentage increased significantly above 70 mm CL, and on average, 63% of individuals >90 mm carried eggs. Egg-bearing increased seasonally at the onset of the SW monsoon in May and June, when wind-driven upwelling reduces inshore water temperatures and increases primary productivity. The reproductive season extended over a 9-month period up to January, with a pause in February to April. No geographical gradient in egg-bearing seasonality was observed. The prolonged breeding season with multiple broods in large females conforms with the typical pattern of tropical palinurids. The 2-month open fishing season (15th October to 15th December) falls within the breeding season, and may be more optimally placed in February to April.
Bioactive Compounds from Omani Sea Cucumbers
Authors: Dobretsov Sergey , Al-Mammari Iman Mohammed , Soussi Bassam 
Published: June 2017

Antimicrobial, anti-diatom and anti-larval activities of both water soluble (water extracts) and non-water soluble metabolites (methanol: chlorophorm, 1:1 extracts) of the sea cucumbers Holothuria atra and Holothuria edulis from Bander AL-Khiran region, Oman were tested in this study. There was no significant effect of the extracts from sea cucumbers on bacterial (3 reference bacteria from seawater and pathogens Escherichia coli, Staphylococcus aureus, Klebsiella pneumoniae, Pseudomonas aeruginosa, Streptococcus pneumoniae, Streptococcus pyogenes, Staphylococcus epidermidis) and the diatom Chaetoceros sp. growth. Both water extracts and methanol: chlorophorm extracts caused significant mortality of Artemia salina nauplia. This study suggests that Omani sea cucumbers might be a good source of toxic anti-larval compounds.
Environmental Factors Affecting Fleece Traits in Raeini Cashmere Goat
Authors: Salehi Mohammed , Asadi-Fozi Masood , Mirhadi Ahmad , Afshar Majid 
Published: June 2017

The objective of this study was to evaluate some environmental factors (sex, age and management system) on fibrecharacteristics of Raeini Cashmere goats in Baft stations (BS) and of Raeini Cashmere goats raised in nomadic conditions (NC) as commercial flocks. Fiber samples including cashmere and hair were taken from 150 and 120 Raeini Cashmere goats (aged 1-8 years old) from BS and NC, respectively. The Fleece traits measured included staple length (SL), percentage of cashmere in fleece (C), percentage of guard hair in fleece (H), cashmere's mean fiber diameter (CMFD) and the coefficient of variation of cashmere's fiber diameter (CVFD). Mean SL, C, H, CMFD and CVFD in BS were 6.35 ±0.1 cm, 66.51± 0.72 %, 33.5 ± 0.72 %, 20.19 ±0.11 micron and 19.57± 0.21% and thosein NC were 5.62 ± 0.1 cm, 69.06 ± 0.74 %, 30.94 ±0.74 %, 19.53±0.15 micron and 17.88 ± 0.19 %, respectively. There were significant differences (P<0.05) between the two production management systems for all traits investigated. The value for C was significantly higher in males than females (P<0.05). The results showed that the fleece traits were affected by age. However, the effect of age on these traits was not the same. Significant phenotypic correlations were found between SL and CMFD (0.16) and between SL and CVFD (0.13). The results of this study indicated that the fixed effects of age, sex and management systems as well as the relationship between fleece traits should be considered in the Raeini Cashmere goat breeding programs.
Partitioning of Chemical Constituents in the Leaf and Stover of Sorghum Grown in a Saline Soil
Authors: Esechie H.A. , Miller F.R. 
Published: June 2017

Field and laboratory studies were conducted in l990 and 1991 to determine the concentrations of total nonstructural carbohydrates (TNC), crude protein, cellulose, hemicellulose. Iignin and ether extract partitioned in the leaf and stower of sorghum grown in a saline soil (EC = 11.8 dSm -1). Twenty three sorghum cultivars comprising 10 female lines. 6 male lines and 7 forage lines were used. TNC was uniformly distributed in the leaf and stover portions. Significantly higher concentrations of cellulose and Iignin were partitioned to the stover portions than the leaf, but the leaf contained larger amounts of hemicellulose and ether extract than the stover. Although, based on TNC contents some of the sorghum types have a potential for methanogenesis, the competing demand as animal feed also needs to be considered.
Effect of a Saline Nutritional Regime on Tomato Fruit Yield and on Enhancement of Fruit Quality
Authors: AI-Rawahy S. A. , Satti S.M.E. , Lopez M. V. 
Published: June 2017

The effect of a saline nutritional regime on tomato (Lycopersicon esculentum Mill.) fruit yield and fruit quality enhancement for five cultivars (CLN 425, Pearson, Napoli, Hymar, and Sierra) was studied. The saline nutrient treatment consisted of (i) a control. Hoagland's solution (EC=2.5 mScm -1), (ii) Hoagland's solution + 50 mM NaCl (EC=7.46 mScm-1), (iii) Hoagland's solution + 50 mM NaCl + 4 mM K2SO4 + 2 mM H3PO4 (EC=8.31mScm-1), (iv) same as in (iii)3 but applied when plants were at 50% flowering, then the plants were irrigated with Hoagland’s solution as in the control, and (v) same as in (iii) until the plans were at 5096 flowering, thereafter NaCl concentration was reduced to 25mM (EC=5.87 mscm-1). Plans were seven weeks old at the start of the saline treatments. Each plant was in PVC cylindrical pots (15 cm diameter and 27 cm height) containing washed quartz sand. Fruits were harvested once weekly for ten weeks at incipient red. The control gave a higher fruit yield than the saline treatments. However, the tomato fruits from thesaline treatments had higher titratable acidity, higher total soluble solids, and higher total solid indicating better quality of the fruits than those from the control. Of the five cultivars studied, Hymar had the highest fruit yield followed by Pearson. Hymar’s quality was also highest, followed by CLN 425. Napoli was the most susceptible to salinity and Sierra had the lowest quality.
Preparation and Characterization of Macroporous Carrageenan Beads for Enhanced Gel Filtration
Authors: Li Q. , Hsu C. C. E. , Grandmaison E. W. , Goosen M. F. A. 
Published: June 2017

Macroporous K-carrageenan beads were prepared by two–step emulsion method, chemically cross-linked characterized, and then employed for gel filtration. It has recently been recognized that convection (i.e. bulk fluid movement) through large pores (i.e. macropores ) is an effective way of enhancing the performance of chromatographic separation by improving mass transfer. The aim of our study was to determine if this concept was true for macroporous and carrageenan beads. The pore structure of the beads was analyzed by environmental scanning electronic microscopy and characterized by measuring the total surface area and packing density. An increasing toluene content in the first emulsion was found to play an important role in creating more pores and in determining the pore structure. In addition, heat treatment of the beads was very effective for increasing the cross linking density and reducing the bead volume swelling in saline. However, treatment with steam reduced the bead surface area suggesting a change in pore structure. The cross linked hydrogel beads were stable in the pH range 1-13 and in KCI solutions at a concentration over 0.07 M. The bead size increased with a decrease in ionic strength. At low ionic strength, two of the proteins studied, cytochrome C and lysozyme, were found to adsorb to the carrageenan beads. The ionic stength also affected the fractionation range of the beads for gel filtration. The elution volume of various non-adsorbed proteins was reduced with a decrease in ionic stength. The efficiency (i.e. resolution and reduced plate heights) of carrageenanbeads in chromatographic separation was better than that of commercial Sepharose CL-6B beads , especially at high flow rates.