bluuebunny/crossref_metadata_2025 huggingface dataset:
İlkokul Öğrencilerinin Teknoloji Destekli Matematik Öğrenmeye Yönelik Tutum ve Kaygı Düzeylerinin İncelenmesi
Authors: HACIÖMEROĞLU Guney
Published: November 2019

Bu araştırmada öncelikli olarak ilkokul 4. sınıf öğrencilerinin teknoloji destekli matematik öğrenmeye yönelik tutumlarını belirlemek amacıyla Pierce, Stacey ve Barkatsas (2007) geliştirilen bir ölçme aracının Türkçeye uyarlama çalışması yapılmıştır. Elde edilen sonuçlar uyarlanan ölçeğin davranışsal katılım, matematiksel güven, duyuşsal katılım ve teknoloji destekli matematik öğrenmeye yönelik tutum olmak üzere 4 alt boyuttan oluştuğunu ortaya koymuştur. Uyarlanan ölçeğin alt boyutları için Cronbach alfa güvenirlik katsayısı sırasıyla .77, .85, .82, .80 olarak hesaplanmıştır. Ölçeğin bütünü için güvenirlik katsayısı .89'dur. Uyarlanan ölçeğin geçerli ve güvenilir bir ölçme aracı olduğu belirlenmiştir. Çalışmanın ikinci aşamasında öğrencilerin matematik dersine yönelik genel olarak tutumlarının olumlu ve kaygı düzeylerinin düşük olduğu belirlenmiştir. Öğrencilerin matematik dersine yönelik tutum ve kaygı düzeyleri arasında anlamlı ve negatif bir ilişki olduğu görülmektedir. Bu derse yönelik olumlu tutumlar geliştikçe kaygı düzeyinin azaldığı söylenebilir.
Investigation of in-School Factors Affecting Distributed Leadership Practices
Authors: ÇAKIR Çiğdem , ÖZKAN Metin
Published: November 2019

The aim of this study is to identify the
distributed leadership levels in public secondary schools (under the Ministry
of National Education) and explore the in-school factors affecting distributed
leadership practices based on teachers’ opinions. The research is designed
based on a mixed approach. In the quantitative dimension, the sample group
consists of 736 teachers from 27 different secondary schools in the Gaziantep
Province. In the qualitative dimension, the focus group is composed of 24
participant teachers. The Distributed Leadership Scale was used to identify
distributed leadership levels of schools. In the qualitative dimension, a
semi-structured interview form developed by the researchers was applied as the
evaluation instrument. According to teachers’ opinions, the rarest subdimension
of distributed leadership at schools is the “common goals”, while the most
frequently seen is the “cooperation and trust” subdimension. The findings
obtained through interviews show that risk-taking, managerial support, learning
culture, accountability relations, communication, professional development,
facilitating role of the administration and the organizational culture are
positive factors that support distributed leadership, while absence of these
factors poses a barrier to management activities.
Lisans Öğrencilerinin Çevre Algıları Üzerine: Tartış, Çiz ve Yaz
Authors: TAŞKIN Özgür , KÜLCÜ Merve Gül
Published: November 2019

Bu çalışma lisans öğrencilerinin yaşamak
istedikleri çevre algılarını belirlemek amacı ile yapılmıştır. Araştırmada
katılımcılara, “nasıl bir çevrede ve neden yaşamak istedikleri” sorulmuştur.
Çalışma, nitel araştırma modeline dayalı olup “tartış, çiz ve yaz” tekniği
kullanılmıştır. Katılım gönüllük ilkesine bağlı olarak sağlanmıştır. Araştırma,
Karadeniz bölgesinde bir üniversitede seçmeli ders kapsamında yürütülmüş olup, veriler
içerik analiz tekniği kullanılarak teorik çerçeve dahilinde analiz edilmiştir.
Katılımcıların çizimleri analiz edilirken aynı zamanda yazdıkları dokümanlardan
da yararlanılmıştır. Kodlar ve temalar çizimler bittikten sonra oluşturulmuştur.
Bulgulara dayanarak katılımcıların zengin ve daha yoksul semtler arasındaki
keskin sınır kabul ettikleri; AVM’leri güvenlik ve sosyalleşme adına tercih
ederken, canlı figürlerine çok da yer vermedikleri tespit edilmiştir.
Comparative study of anterior support ankle foot orthosis and posterior ankle foot orthosis in foot drop patients
Authors: Uppal Harleen , Handa Gita , Singh U. , Wadhwa Sanjay , Yadav S. L.
Published: November 2019

Background: Anterior Support Ankle Foot Orthosis (A-AFO) is a fairly recent approach. There is dearth of studies relating to comparison of metabolic efficiency of A-AFO and P-AFO. Objective was to study the efficacy of A-AFO compared to P-AFO in foot drop patients, using gait and metabolic analysis.Methods: It was a cross over study, included foot drop patients who could walk with/ without orthosis. Patients having spasticity more than grade 2 (Modified Ashworth Scale) were excluded. The metabolic parameters measured were volume of Oxygen consumed at Standard Temperature and Pressure in l/min (VO2), Dry in l/min, Rate of Oxygen consumption (MET), Volume of Carbon dioxide produced in litre/min (VCO2). Along with various gait parameters, questionnaire about patient’s preference after 4 weeks was also incorporated.Results: A-AFO was significantly better than P-AFO in terms of VO2 and VCO2 (p value = 0.02 and 0.009 respectively) as well as in terms of subjective preference.Conclusions: A-AFO is comparable to P-AFO in terms of energy efficiency, gait parameters and subjective preference, hence should also be prescribed.
Recent advances in understanding plant response to sulfur-deficiency stress.
Authors: Lewandowska Małgorzata , Sirko Agnieszka
Published: November 2019

Sulfur is an essential macronutrient for all living organisms. Plants are able to assimilate inorganic sulfur and incorporate it into organic compounds, while animals rely entirely on organic sources of sulfur. In the last decades sulfate availability in soils has become the major limiting factor for plant production in many countries due to significant reduction of anthropogenic sulfur emission forced by introducing stringent environmental legislation. The sulfur flux after transferring plants from optimal conditions to sulfur deficiency is regulated on multiple levels including transcription, translation and activity of enzymes needed for sulfate assimilation and synthesis of sulfur-containing metabolites. Most of these regulatory steps are not yet fully characterized. Plant responses to sulfur limitation are complex and can be divided into phases depending on the degree of sulfur shortage. The initial responses are limited to adaptations within sulfur metabolic pathway, while multiple metabolic pathways and developmental process are affected when sulfur shortage becomes more severe. The major aim of this work is a comprehensive review of recent progress in understanding the regulation of plant adaptations to sulfur deficit.
Upregulation of GRP78 and caspase-12 in diastolic failing heart.
Authors: Sun Yingying , Liu Guanghui , Song Tao , Liu Fang , Kang Weiqiang , Zhang Yun , Ge Zhiming
Published: November 2019

The endoplasmic reticulum (ER) fulfills multiple cellular functions. Various stimuli can potentially cause ER stress (ERS). ERS is one of the intrinsic apoptosis pathways and apoptosis plays a critical role in hypertension. Glucose regulated protein 78 (GRP78) has been widely used as a marker for ERS and caspase-12 mediated apoptosis was a specific apoptotic pathway of ER. The expression of GRP78 and caspase-12 remains poorly understood in the diastolic heart failure resulting from hypertension.
We used spontaneously hypertensive rats (SHRs) to establish a model of diastolic heart failure, and performed immunohistochemistry, western blot, and real-time PCR to analyze GRP78 and caspase-12.
We found that GRP78 and caspase-12 had enhanced expression at protein and mRNA levels.
These results suggest that GRP78 and caspase-12 were upregulated in cardiomyocytes and ERS can contribute to cardiac myocyte apoptosis in the diastolic heart failure resulting from hypertension.
In vitro alpha-glucosidase and alpha-amylase enzyme inhibitory effects of Andrographis paniculata extract and andrographolide.
Authors: Subramanian Rammohan , Asmawi M Zaini , Sadikun Amirin
Published: November 2019

There has been an enormous interest in the development of alternative medicines for type 2 diabetes, specifically screening for phytochemicals with the ability to delay or prevent glucose absorption. The goal of the present study was to provide in vitro evidence for potential inhibition of alpha-glucosidase and alpha-amylase enzymes, followed by a confirmatory in vivo study on rats to generate a stronger biochemical rationale for further studies on the ethanolic extract of Andrographis paniculata and andrographolide. The extract showed appreciable alpha-glucosidase inhibitory effect in a concentration-dependent manner (IC(50)=17.2+/-0.15 mg/ml) and a weak alpha-amylase inhibitory activity (IC(50)=50.9+/-0.17 mg/ml). Andrographolide demonstrated a similar (IC(50)=11.0+/-0.28 mg/ml) alpha-glucosidase and alpha-amylase inhibitory activity (IC(50)=11.3+/-0.29 mg/ml). The positive in vitro enzyme inhibition tests paved way for confirmatory in vivo studies. The in vivo studies demonstrated that A. paniculata extract significantly (P
Redox state of plastoquinone pool regulates expression of Arabidopsis thaliana genes in response to elevated irradiance.
Authors: Adamiec Małgorzata , Drath Maria , Jackowski Grzegorz
Published: November 2019

DNA microarray technology was applied to gain insight into the role of the redox state of PQ pool as a retrograde factor mediating differential expression of Arabidopsis nuclear genes during the acclimation to changing irradiance. DNA microarray chips containing probes corresponding to 24,000 Arabidopsis nuclear genes were screened with cRNA samples prepared from leaves of plants exposed for 5 h to low irradiance (control) vs. medium, high and excessive irradiances (MI, HI and EI, respectively). Six hundred and sixty three genes were differentially expressed as a result of an exposure to at least one elevated irradiance. Among 663 differentially expressed genes a total of 50 were reverted by DCMU--24 ones modulated at medium irradiance, 32 ones modulated at high irradiance and a single one modulated at excessive irradiance. We postulate that their expression is regulated by redox state of plastoquinone (PQ) pool. Thus the PQ-mediated redox regulation of expression of Arabidopsis nuclear genes is probably limited to the irradiance window representing non-stressing conditions. We found that the promoter regions of the PQ-regulated genes contained conserved elements, suggesting transcriptional control by a shared set of trans-acting factors which participate in signal transduction from the redox state of the PQ pool.
Appendicostomy Antegrade Colonic Irrigation by Electromechanical Pump, a Novel Method for Managing Fecal Incontinence, Randomized Clinical Trial
Authors: Mousavie Seyed Hamzeh , Mirzaei Rezvan , Mahjoubi Bahar , Nahavandi Amir
Published: November 2019

Antegrade colonic irrigation enema (ACIE) is established as an old treatment for child fecal incontinence and recently is approved as a treatment for different causes of adult fecal incontinence (cancer surgery, neurogenic bowel, spinal cord injury, sphincter trauma, etc.). Despite the benefits of emptying the large bowel and prevention of fecal incontinence or constipation, this method is time-consuming and requires thorough instruction and training. The purpose of this study was to innovate and assess novel technique to decrease time-consuming and improve performance of irrigation. We designed and electromechanical pump for colon irrigation and assessed by a randomized crossover clinical trial study, involving two-four weeks treatment phases. 30 patients have included that suffered fecal incontinence and had been managed with appendicostomy antegrade colon irrigation. The results showed that the pump decrease time and volume of irrigation compare with the traditional method. All patients had a reduction in toileting times. Traditional mean toileting time was 67 minutes, versus pump-toileting time that was 24.6 minutes (P:0.00). The volume of water was reduced in 13 patients. Mean of the volume was 1712 ml in the traditional method and 1128 ml in pump method (P:0.279). Mean Cleveland Clinic Florida Fecal Incontinence score (CCF_FIS) for the pump was 5.84 compare 6.24 for traditional method (P:0.000). Our study provides evidence for the first time that our novel method can facilitate and speed-up colon irrigation without any adverse effect on the outcome.
© 2018 Tehran University of Medical Sciences. All rights reserved.
Acta Med Iran 2018;57(4):216-223.
Metaplastic Carcinoma and Invasive Lobular Carcinoma of Breast: Rare Collision Tumor of Breast With Review of Recent Literature
Authors: Zafar Ghazi , Zafar Asma
Published: November 2019

Collision tumors are type of tumors where two histologically distinct type of tumors occur at the same anatomic location. Breast collision tumors comprising carcinoma and lymphoma or invasive ductal carcinoma with invasive lobular carcinoma are relatively common. However, a collision tumor between metaplastic breast carcinoma (MBC) and invasive lobular carcinoma (ILC) is extremely rare. Here, we report a case of collision tumor in breast comprising MBC and ILC. A 60-year-old female patient presented in outdoor department with palpable painless firm mass in left breast. FNAC diagnosis of class V smears was made. Wide local excision was done and specimen sent for frozen section analysis. On frozen section, diagnosis of malignant neoplasm was made and suspicion of malignant phyllodes and MBC was raised. All margins were reported free as free of the tumor. Further sectioning revealed another tumor, 0.1 cm away from main tumor. Sections from this tumor showed a malignant neoplasm arranged in cords with tumor cells having eccentric nuclei and moderate amount of cytoplasm. Immunohistochemical (IHC) analysis showed spindle cell tumor with profile favoring MBC while IHC analysis of second tumor was consistent with the diagnosis of ILC. Final diagnosis of collision tumor was made.
© 2019 Tehran University of Medical Sciences. All rights reserved.
Acta Med Iran 2019;57(4):271-275.
Dirty Money on Holy Ground: Isolation of Potentially Pathogen-ic Bacteria and Fungi on Money Collected from Church Offer-ings
Authors: ABIA Akebe Luther King , UBOMBA-JASWA Eunice
Published: November 2019

Background: Fomites (including money) can transmit diseases to humans. How the nature of money influences contamination has not been adequately demonstrated. Moreover, such studies in church settings are non-existent. Thus, we studied how money collected from a church could serve as human disease transmission vehicles.
Methods: Overall, 284 money samples (currency notes and coins) were collected during two Sundays in the months of Nov and Dec 2015 from a church congregation in Pretoria, Gauteng, South Africa. The presence of potentially pathogenic bacteria and fungi were investigated using culture (Colilert® method) and molecular methods (Sanger sequencing). Scanning Electron Microscopy (SEM) was used to visualize the possible positions of the bacteria on various parts of a currency note.
Results: Of the 192 samples (first sampling round), 76 (39.6%) were positive for E. coli. Smaller notes (R10) recorded the highest E. coli counts per note. Of the 92 notes analyzed for potentially pathogenic bacteria and fungi (second sampling round), 76 (82%) showed growth on at least one of the six culture media used. Sequencing revealed three bacterial (Bacillus, Staphylococcus and Corynebacterium) and two fungal (Clavispora and Rhodotorula) genera. SEM revealed that microorganisms could enter cracks of creased notes.
Conclusion: Unlike previous studies conducted where recent contamination could occur, the current study shows that microorganisms can survive on money; samples were collected from a church, where little or no exchange takes place. Moreover, using SEM demonstrates that aged and creased notes favor attachment of bacteria to money and could be of public health concern by transmitting disease within a given population.
Identification and Phylogenetic Classification of Fasciola species Isolated from Sheep and Cattle by PCR-RFLP in Zabol, in Sis-tan and Baluchistan Province, Southeast Iran
Authors: MIR Sedighe , DABIRZADEH Mansour , ROKNI Mohammad Bagher , ARYAEIPOUR Mojgan , KHOSHSIMA SHAHRAKI Mahdi , AZIZI Hakim
Published: November 2019

Background: The detection of Fasciola species in various geographical regions is essential for health policymaking. Here, we aimed to identify livestock (cattle and sheep) related Fasciola genotypes by restriction fragment length polymorphism PCR.
Methods: Seventy adult Fasciola flukes were collected from 70 infected livers of 35 cattle and 35 sheep slaughtered in Zabol abattoir, outh-east Iran (Jan-Jul 2017). Fasciola species were determined based on molecular features. For molecular detection, Fasciola ITS1 region was amplified and sequenced. A 700 bp fragment was amplified. These were digested with RasΙ enzyme. F. hepatica specific fragments were 47, 59, 68, 104, and 370, while those related to F. gigantica had 45, 55, 170, 370.
Results: The two main species of F. hepatica and F. gigantica are responsible for fasciolosis in sheep and cattle in our region. From 35 Fasciola isolated from cattle, 3 and 32 were F. hepatica and F. giagantica respectively. From 35 Fasciola isolated from sheep, 4 were F. hepatica and 31 were F. gigantica.
Conclusion: All Seventy Fasciola samples from two different hosts (cattle and sheep) were identified as either F. hepatica or F. gigantica by PCR-RFLP. Genotypic variability of Fasciola species was high in our region. It is recommended to assess molecular variation of Fasciola isolates in other host livestock.
In Vitro Activity of Amphotericin B in Combination with Statins against Clinical and Environmental Rhizopus oryzae Strains
Authors: NAEIMI ESHKALETI Mahsa , KORDBACHEH Parivash , HASHEMI Seyed Jamal , FALAHATI Mehraban , ZAINI Farideh , MIRHENDI Hossein , SAFARA Mahin , HOSSEINPOOR Leila
Published: November 2019

Background: Mucormycosis is an acute and invasive fungal infection with a high mortality rate. Mucorales are less sensitive than other types of fungi to most antifungal agents. Amphotericin B (AMB) is one treatment option for this infection, but in recent studies, the antifungal activity of statins against Mucorales was shown. Therefore, therapy that combines AMB with these agents may have better effects in management of patients with mucormycosis. We evaluated the in vitro activity of AMB alone and in combination with statins, against Mucorales.
Methods: Susceptibility profiles of AMB alone and in combination with two statins, atorvastatin (ATO) and lovastatin (LOV) determined against clinical (n: 15) and environmental (n: 5) Rhizopus oryzae isolates, obtained between Jan 2009 and Oct 2016 from patients with uncontrolled diabetes mellitus and cancer referred to the Department of Parasitology and Medical Mycology of Tehran University of Medical Sciences, Tehran, Iran. It was performed by microdilution method, based on the Clinical and Laboratory Standard Institute (CLSI) M38-A2 guideline.
Results: All clinical and environmental isolates were susceptible to AMB (MIC≤1 µg/mL). The results of the interactions between AMB and the two statins were positive. The AMB-ATO (GM: 0.13 µg/Ml) combination produced greater activity than the AMB-LOV (GM: 0.26 µg/mL) combination. AMB, in combination with ATO and LOV, reacts positively against clinical and environmental R. oryzae isolates.
Conclusion: This combination strategy may lead to more effective treatment of mucormycosis and fewer side effects using low dose of AMB.
An Overview of the Strengths and Challenges related to Health on the First 10 Days after the Large Earthquake in the West of Iran, 2017
Authors: PEYRAVI Mahmoudreza , AHMADI MARZALEH Milad , KHORRAM-MANESH Amir
Published: November 2019

Background: The objective of the present study was to investigate the strength and weaknesses of healthcare management during the first 10 days after the earthquake in Sarpol-e Zahab in Kermanshah, Iran.
Methods: This qualitative, observational study was conducted on November 13-23, 2017 in the disaster area, by using content analysis. Data was collected through experts and focus group interviews with professional and healthcare staff, and policy-makers.
Results: Our findings were categorized into 7 major groups; environmental health; mental health; mothers, infants and children’s health; field hospital; nutrition; contagious diseases; drug delivery. There were good cooperation and coordination regarding environmental health issues. However, other categories were handled by different organizations and resulted in a chaotic situation.
Conclusion: The post-earthquake period is overwhelmed with considerable issues regarding the care of victims and therapeutic measures. Lack of quick, reliable, and appropriate management will result in extensive health issues, including epidemic, worsening of chronic diseases, and exacerbation of mental disorders.
Association between Oral Health Status and Dementia
Authors: KIM Eun-Sol , JO Eun-Deok , HAN Gyeong-Soon
Published: November 2019

This article is a Letter to the Editor and does not include an Abstract.
La chicha, producto gastronómico y ritual: caso Chorro de Quevedo (Colombia) y Otavalo (Ecuador)
Authors: Castilla Corzo Felipe , Burbano Argoti Camila Alejandra , Salazar Duque Diego Alfredo
Published: November 2019

La chicha es una bebida ancestral que goza de cierto reconocimiento en los países andinos, ha logrado vencer decenas de obstáculos gracias al fuerte arraigo producido entre sus consumidores, sus característicos sabores y ritualidades. El objeto de este artículo es reconocer similitudes y/o diferencias entre las chichas emblemáticas de un lugar situado en Colombia (Chorro de Quevedo) y otro de Ecuador (Otavalo). El documento incluye un trazado histórico-social y una aproximación a la opinión de consumidores/productores sobre el papel que cumple esta bebida en la idiosincrasia de sus lugares de origen. Se concluye que las condiciones específicas en cuanto a contexto geográfico, histórico y cultural han configurado de diferente manera la forma de preparación, el consumo y las ritualidades alrededor de la chicha.
Modern Austrian Novel: Endless Wanderings in the Labyrinths of Kafka's Castle
Authors: Shastina Elena , Kazakova Julia , Shastina Marina , Trofimova Lyudmila , Borisov Anatolii
Published: November 2019

The purpose of the article is to discuss the perception of Kafka's The Castle (Das Schloss, 1922) in the novels The Peaches Killers (Die Pfirsichtöter, 1972) by Alfred Kolleritsch, Among the Bieresch (Bei den Bieresch, 1979) by Klaus Hoffer and Into the Castle (Ins Schloss, 2004) by Marianne Gruber. The reference to the writers and their works is no coincidence; preference is given to the artists whose creative manner reflects the most fashionable trends in Western European literary process - from avant-garde to postmodernism. The authors of the article deliberately arrange the analysed works in chronological order to follow the stages in the development of German postmodernism which originates from modernist literature. The universal Kafkaesque discourse suggests the existence of direct and inverse connections between the author and the reader, the extra-textual tradition and reality. The article focuses on the narrative strategies of Austrian avant-garde (Kolleritsch), analyses postmodern discourse (Hoffer, Gruber) in the Austrian literature of the second half of the 20th and early 21st centuries, reveals signs of typological similarity between the novels by Kafka, Kolleritsch, Hoffer, and Gruber, which seems productive for understanding the influence of modernist literature on the development of the postmodern paradigm in the German-language literary space. Austrian literature, to a greater extent, is fraught with the search for new forms of self-expression rather than with the artistic “overcoming the past” - the awareness of collective guilt.  It brought to the forefront the authors in whose works the age of change was reflected. Literary avant-garde has been replaced by authors who skillfully “play” with the previous culture and establish a dialogue with the present. The comparative methodology is to reveal the perception of "Kafkaesque discourse" in modern Austrian literature and to draw conclusions about the ways authors treat ontological questions.
Analysing the Efficiency of Managing the Rural Social Infrastructure in the Region
Authors: Kossymbayeva Shynar Isabekovna , Nukesheva Anar Zhaskairatovna , Кirbassova Laila Gabitovna , Saubetova Bibigul Suleimenovna
Published: November 2019

The article aims to summarise theoretical conclusions and practical results of studying the activities of local bodies on managing the development of rural social infrastructure in the Republic of Kazakhstan. In the article, the objective and subjective indicators characterising the efficiency of managing the rural social infrastructure in rural areas of the Mangystau Region for 2013 – 2017 have been analysed. Through the example of a statistical study of the dynamics of the social infrastructure elements and living standards, the features and problems related to the administrative measures that regulate the socio-economic development of auls in the region have been identified. Using the questionnaire survey, the satisfaction of rural residents in the Mangystau Region with the quality of their social infrastructure has been determined. It has been proved that now the subjective assessment of the efficiency of managing the rural social infrastructure is positively correlated (correlated) with the degree of efforts taken by the local administration to improve the quality of rural life. Currently, rural settlements of the Mangystau Region have an average level of social infrastructure development. However, in different areas, the level of residents’ satisfaction with it varies from very low to sufficient.
Does the Electron Have an Anomalous Electric Dipole Moment?
Authors: Roza Engel
Published: November 2019

An analysis is presented of the possible existence of a second anomalous dipole moment of Dirac’s particle next to the angular one. It includes a discussion why, in spite of his own derivation, Dirac has doubted about its relevancy. It is shown why since then it has been overlooked and why it has vanished from leading textbooks. A critical survey is given on the reasons of its reject, including the failure of attempts to measure and the perceived violations of time reversal symmetry and chargeparity symmetry. It is emphasized that the anomalous electric dipole moment of the pointlike electron (AEDM) is fundamentally different from the quantum field type electric dipole moment of an electron (eEDM) as defined in the standard model of particle physics and that its measurement requires different instrumentation. A proposal has been described how to prove or disprove its existence by experiment. Moreover, by reference from literature, the possible impact is discussed in the nuclear domain and in the gravitational domain.
Determining the Impact of Riparian Wetlands on Nutrient Cycling, Storage and Export in Permeable Agricultural Catchments
Authors: Johnes Penny J. , Gooddy Daren C. , Heaton Timothy H. E. , Binley Andrew , Kennedy Michael P. , Shand Paul , Prior Hannah
Published: November 2019

The impact of riparian wetlands on the cycling, retention and export of nutrients from land to water varies according to local environmental conditions and is poorly resolved in catchment management approaches. To determine the role a specific wetland might play in a catchment mitigation strategy, an alternative approach is needed to the high frequency and spatially detailed monitoring programme that would otherwise be needed. Here, we present a new approach using a combination of novel and well-established geochemical, geophysical and isotope ratio approaches. This was developed and tested against a 2-year high-resolution sampling programme in a lowland permeable wetland in the Lambourn catchment, UK. The monitoring programme identified multiple pathways and water sources feeding into the wetland, generating large spatial and temporal variations in nutrient cycling, retention and export behaviours within the wetland. This complexity of contributing source areas and biogeochemical functions within the wetland were effectively identified using the new toolkit approach. We propose that this technique could be used to determine the likely net source/sink function of riparian wetlands prior to their incorporation into any catchment management plan, with relatively low resource implications when compared to a full high frequency nutrient speciation and isotope geochemistry-based monitoring approach.
Radio Resource Allocation Improvements in CRSN for Smart Grid: A Survey
Authors: Ogbodo Emmanuel , Dorrell David , Abu-Mahfouz Adnan
Published: November 2019

A cognitive radio sensor network (CRSN) based Smart Grid (SG) is a new paradigm for a modern SG. It is totally different from the traditional power grid and also different from the conventional SG that uses a static resource allocation technique to allocate resources to sensor nodes and communication devices in the SG network. Due to the challenges associated with competitive sensor nodes and communication devices in accessing and utilizing radio resources, the need for dynamic radio resource allocation (RRA) has been proposed as a solution for allocating radio resources to sensor nodes in a CRSN based smart grid ecosystem (network). These challenges include energy/power constraints, poor quality of service (QoS), interference, delay, spectrum efficiency issues, and excessive spectrum hand-offs. Hence, the optimization of resource allocation criteria, such as energy efficiency, throughput maximization, QoS guarantee, fairness, priority, interference mitigation/avoidance, etc., will go a long way in addressing the problems of RRA in a CRSN based SG. Consequently, this work explores RRA in CRSNs for SGs. Various resource allocation schemes, as well as its architecture in a CRSN for SG environment, are presented. The work reported in this paper introduces a model called the “guaranteed network connectivity channel allocation” for throughput maximization (GNC-TM) and optimal spectrum band determination in RRA for improved throughput criteria in CRSNs for SGs. The results show that the model outperforms the existing protocol in terms of throughput and error probability. Finally, the contribution to knowledge and future research direction, such as energy efficiency and hybrid energy harvesting schemes are highlighted.
Calculation of Maximum Total Supply Capacity of Three-Phase Unbalance Distribution Network Based on Mixed Integer Second-Order Cone
Authors: Zheng Jieyun , Ni Shiyuan , Shi Pengjia , Wu Guilian , Wang Ri’an , Yi Chenying , Hu Zhijian
Published: November 2019

Considering the fault "N-1" checksum and the power flow, the single-phase power flow model is further transformed into a three-phase power flow model, and the asymmetry of the three-phase power flow is measured by the three-phase unbalance factor. The calculation model is linearized by the second-order cone relaxation and the Big-M method. At the same time, the load response and distribution network reconstruction are used to improve the reliability of the power supply network to cope with the power failure. The relationship between power supply capability and power flow constraints, main transformer capacity and distributed power parameters is analyzed by IEEE 33-node three-phase power distribution system. The feasibility of the proposed model and the accuracy of the second-order cone relaxation are verified by numerical examples, which provides a technical reference for distribution network planning.
Stability Analysis in Positive Output and Negative Output DC to DC Converters Used in Renewable Energy Applications
Authors: Ellappan Maheswari , Anbukumar Kavitha
Published: November 2019

The renewable energy source plays a major role in the grid side power production. The stability analysis is very essential in the renewable energy converters. In this paper the bifurcation is analyzed in ZETA converter and Continuous input and output(CIO) power Buck Boost converter. The ZETA converter gives positive step down and step up output voltage and the CIO power converter gives the negative step up and step down output voltage. These converters are used in the DC micro grid with renewable energy as the source. The current mode control technique is applied to analyze the bifurcation behavior and the reference current is taken as the bifurcation parameter. When the reference current is varied, both the converters loses its stability and it enters into chaotic region through period doubling bifurcation. The simulation results are presented to study the performance behavior of both the converters. The stability region of both the converters are determined by deriving the Monodromy matrix approach.
Extraction and Physicochemical Characterization of Chitin Derived from the Asian Hornet, Vespa velutina Lepeletier 1836 (Hym.: Vespidae)
Authors: Feás Xesús , Vázquez-Tato M. Pilar , Seijas Vázquez Julio A. , Fraga-López Francisco
Published: November 2019

The isolation and characterization of chitin (CHI) obtained from Vespa velutina (CHIVV) is described. Moreover, a trapping procedure is presented to selectively catch the invasive species. The chitin contents of dry Vespa velutina was observed to be 11.7 %. The physicochemical properties of CHIVV was characterized by Fourier transform infrared spectroscopy (FTIR), solid-state NMR (ssNMR), elemental analysis (EA), scanning electron microscopy (SEM) and thermogravimetric analysis (TG). Obtained CHIVV is close to pure (43, 47% C, 6.94% H, and 6.85% N) and full acetylated with a value of 95.44%. Also, lifetime and kinetic parameters such as activation E and the frequency factor A using model-free and model-fitting methods, were determined. For CHIVV the solid state mechanism that follows the thermodegradation is of type F2 (Random nucleation around two nuclei). Vespa velutina chitin should not be used at temperatures above 60ºC, since its half-life would be only one year, and from an industrial point of view it would not be profitable. Based on certain factors such as the current and probable continued abundance of Vespa velutina and the quality of the product obtained, the invasive Asian hornet is a promising alternative source of chitin.
BUDAYA PEDULI DAN BUDAYA MUTU MELAYANI DI PERPUSTAKAAN SMP NEGERI 13 SURAKARTA MENUJU SEKOLAH MENYENANGKAN
Authors: Widyawati Ria
Published: November 2019

Students of SMP Negeri 13 Surakarta mostly students from families with lower
economic level. Most students of SMP Negeri 13 Surakarta not yet have adequate facilities for the needs of their schools at home, for example a computer or netbook, books that support learning in schools, and other school supplies. Existing facilities at the school became one of the alternatives that can help students to improve students’ quality of human resources. Library SMP Negeri 13 Surakarta has the facilities and infrastructure that can help the students to follow the teaching and learning process in schools. Concern antarsiswa and concerns of the student teachers are needed in the environment of SMP Negeri 13 Surakarta because a lot of students that should be
redirected in order to achieve future aspired. Library SMP Negeri 13 Surakarta also constantly improve the quality of services that the students and teachers as library members feel comfortable using the library of SMP Negeri 13 Surakarta. Quality culture serves in the library of SMP Negeri 13 Surakarta realized by improving the quality of services to library patrons, for example the use of an application library to replace the use of the manual on the process of borrowing and returning books as well as data members of the library, so as to realize the school a fun and students can enjoy the learning process, feel comfortable in the environment of SMP Negeri 13 Surakarta,especially if students are in the library.

Keywords: libraries, care, quality
ANALISIS FAKTOR YANG MEMPENGARUHI KEPUASAN PENGGUNA DALAM MENGAKSES DIGITAL LIBRARY
Authors: Masriyatun Masriyatun
Published: November 2019

Digital Library adalah layanan (service), arsitektur, kumpulan sumberi informasi,
basis data yang terdiri dari teks, angka, grafik, suara, video dan lain sebagainya, juga
seperangkat alat (tools) yang memiliki kemampuan untuk melakukan pencarian,
menampilkan hasil pencarian (retrieve) dan penggunaan sumber informasi yang
tersedia. Tipe Penelitian yang digunakan explanatory research, metode survei. Lokasi
Penelitian di Perpustakaan UNS. Untuk Populasi, Sampel adalah sebagai berikut ;
dimana populasi dalam hal ini adalah Mahasiswa UNS yang mengakses Digilib UNS
dengan menggunakan fasilitas WI-fi Hotspot. Berdasarkan hasil survey dalam satu
minggu bahwa mahasiswa yang hadir di ruang skripsi mengakses digilib sejumlah 216
orang. Dengan jumlah sampel penelitian sejumlah 68 orang.Hasil analisis pengaruh
antara variabel independen yaitu variabel Content Digilib UNS, dan Fasilitas Wi-fi
Hotspot terhadap variabel dependen yaitu kepuasan pengguna dalam mengakses digilib
UNS, menunjukkan pengaruh yang positif antara keduanya. Karena berdasarkan
perhitungan, arah pengaruh yang positif menunjukan bahwa content digilib UNS dan
fasilitas wif-fi hotspot mempengaruhi kepuasan pengguna dalam mengakses Digilib
UNS.Hasil uji statistik Pengaruh Antar Variabel, besar pengaruh antar variabel content
digilib UNS terhadap kepuasan pengguna dalam mengakses digilib UNS adalah
4,062, sedangkan variabel fasilitas wi-fi hotspot terhadap variabel kepuasan pengguna
dalam mengakses digilib UNS sebesar 7,956 secara teoritis.
Berdasarkan hasil penelitian diketahui bahwa responden yang menjawab kadangkadang,
untuk pertanyaan nomor 2, masih tergolong cukup tinggi, sehingga diharapkan
para mahasiswa memberikan masukan mengenai model atau bentuk fitur login yang
lebih sederhana atau mudah dipahami agar prosedur dalam fitur login lebih mudah
diakses. Berdasarkan hasil penelitian diketahui bahwa distribusi frekuensi variabel
content digital library UNS menunjukkan kategori sedang, jadi dengan diketahui hal
tersebut sehingga diharapkan para mahasiswa dapat memberikan sumbangan baik
berupa artikel maupun karya ilmiah yang dapat dimasukkan ke dalam content digital
library UNS karena dipandang masih kurang.
Kata Kunci; Digilib, fasilitas wi-fi dan Kepuasan Pengguna
Caracterización genética del pavo domestico de traspatio mexicano
Authors: Canales A.M. , Landi V. , Martínez A.M. , Macri M. , Pizarro G. , Delgado J. V. , Cervantes P. , Hernández A. , Camacho E.
Published: November 2019

El pavo de traspatio mexicano es una raza autóctona en peligro de extinción, ya que en la actualidad se ha perdido la costumbre de conservar los recursos genéticos autóctonos de cada población, procurando el cruzamiento con animales de líneas comerciales para la producción de carne de pavo, dañando y perdiendo el acervo genético de los pavos autóctonos de México. El objetivo del presente trabajo es realizar la caracterización genética del pavo de traspatio mexicano mediante el uso de microsatélites y estudiar la posible estructura genética de esta población. Se analiza un panel de 38 microsatélites en 51 muestras de pavo de traspatio, tomadas de diferentes zonas de la ciudad de Veracruz, México. Se han evaluado los principales parámetros de diversidad genética: heterocigosidad esperada y observada, número de alelos, estadísticos F y Análisis Factorial de Correspondencia mediante el programa informático GENETIX. Se calculan las distancias genéticas entre individuos (DSA) con las que se ha construido un dendrograma utilizando el programa POPULATIONS. El árbol se visualiza con el programa TREEVIEW. Se estudia la estructura genética con el programa STRUCTURE. Todos los microsatélites utilizados han resultado polimórficos, encontrándose un mínimo de 2 alelos en el microsatélite MNT 264 y un máximo de 14 alelos en los marcadores MNT274 y RHT024, con un número medio de alelos de 6.79. Los valores medios de HE y HO son 0.619 y 0.620 respectivamente. Los estadísticos F muestran los siguientes valores en el total de la muestra: FIS 0.128 (P
Testosterona, Colesterol, ADH e a Agressividade em Touros de Lide sob Stress
Authors: Gouveia A.J.
Published: November 2019

Os estudos sobre as inter-relações endocrinológicas em bovinos da Raça Brava de Lide são raros, permanecendo ainda incompreendidos todos os mecanismos que concorrem para a sua agressividade. A forma como a deficiência de testosterona ajusta exactamente o metabolismo do colesterol e da vasopressina permanece incerto. Foram estudados 10 touros da Raça Brava de Lide, dos quais, logo após o abate, foi recolhido e analisado o sangue, com o objectivo de se determinar os níveis de Testosterona, Colesterol e Vasopressina (ADH). Verifica-se uma conjunção de valores baixos de colesterol, altos de testosterona e de ADH, coincidentes com uma maior agressividade. A correlação da ADH vs testosterona é positiva e significativa ao nível de 5%. As médias encontradas para o Colesterol Total, a Testosterona Sérica e a ADH são respectivamente de – 139,4 mg/dL, 14,14 ng/dL e de 440,7 pg/ml. E, surge uma putativa correlação evidente, entre a Testosterona Sérica acima de 10,4 ng/dL e o Comportamento dos touros, qualificados com maior agressividade.
Estudio de las correlaciones entre valores genéticos de producción – reproducción y tipo de los toros Jersey en Ecuador
Authors: Toalombo P.A. , Almeida F.A. , Diaz H. , Trujillo J.V.
Published: November 2019

En la provincia de Chimborazo se analizaron las correlaciones entre valores genéticos de Producción, Tipo y Reproducción en toros de la raza Jersey, mediante el uso de una base de datos correspondiente a dichos toros disponible en EEUU y comercializados en Ecuador. Se seleccionaron 25 toros. Los datos fueron analizados mediante estadística descriptiva y a su vez se realizó un análisis de correlación lineal por el método de Pearson, utilizando el software SPSS versión Statistic 19. Para la correlación entre parámetros productivos y reproductivos, el 65% de las características no se correlacionan, es decir, son independientes; mientras que el parámetro tasa de preñez de las hijas (DPR) se correlaciona con la vida productiva (PL) y habitabilidad (LIV). Además, la tasa de concepción de las hijas (HCR) se correlaciona con la habilidad predicha de trasmisión de proteína (PTAP) y la tasa de concepción de la vaca (CCR) con la LIV. Con respecto a las correlaciones entre parámetros productivos y de tipo, se indica que el 88% de las características son independientes; mientras que hay correlación directa entre el temperamento lechero (DF) con la PTAP y la habilidad predicha de trasmisión de grasa (PTAF). Para la correlación entre parámetros reproductivos y de tipo, el 72% de las características son independientes, mientras que los que progresan de manera directa son: PTAT con la tasa de concepción del toro (SCR) y el índice ubre Jersey (JUI) con SCR, por lo que se recomienda a los productores, seleccionar los sementales tomando en consideración las características que se correlacionan, ya que influyen en el desarrollo del Hato.
SMRT Sequencing of a Full-length Transcriptome Reveals Transcript Variants Involved in C18 Unsaturated Fatty Acid Biosynthesis and Metabolism Pathways at Chilling Temperature in Pennisetum giganteum
Authors: Li Qingyuan , Xiang Conglin , Xu Lin , Cui Jinghua , Fu Shao , Chen Baolin , Yang Shoukun , Wang Pan , Xie Yanfeng , Wei Ming , Wang Zhanchang
Published: November 2019

Background Pennisetum giganteum, an abundant, fast-growing perennial C4 grass that belongs to the genus Pennisetum, family Poaceae, has been developed as a source of biomass for mushroom cultivation and production, as a source of forage for cattle and sheep, and as a tool to remedy soil erosion. However, having a chilling-sensitive nature, P. giganteum seedlings need to be protected while overwintering in most temperate climate regions. Results To elucidate the cold stress responses of P. giganteum, we carried out comprehensive full-length transcriptomes from leaf and root tissues under room temperature (RT) and chilling temperature (CT) using PacBio Iso-Seq long reads. We identified 196,124 and 140,766 full-length consensus transcripts in the RT and CT samples, respectively. We then systematically performed functional annotation, transcription factor identification, long non-coding RNAs (lncRNAs) prediction, and simple sequence repeat (SSR) analysis of those full-length transcriptomes. Isoform analysis revealed that alternative splicing events may be induced by cold stress in P. giganteum, and transcript variants may be involved in C18 unsaturated fatty acid biosynthesis and metabolism pathways at chilling temperature in P. giganteum. Furthermore, the fatty acid composition determination and gene expression level analysis supported that C18 unsaturated fatty acid biosynthesis and metabolism pathways may play roles during cold stress in P. giganteum. Conclusions We provide the first comprehensive full-length transcriptomic resource for the abundant and fast-growing perennial grass Pennisetum giganteum. Our results provide a useful transcriptomic resource for exploring the biological pathways involved in the cold stress responses of P. giganteum.
Flow-controlled ventilation (FCV) improves regional ventilation in obese patients – a randomized controlled crossover trial
Authors: Weber Jonas , Straka Leonie , Borgmann Silke , Schmidt Johannes , Wirth Steffen , Schumann Stefan
Published: November 2019

Background
In obese patients, high closing capacity and low functional residual capacity increase the risk for expiratory alveolar collapse. Constant expiratory flow, as provided by the new flow-controlled ventilation (FCV) mode, was shown to improve lung recruitment. We hypothesized that lung aeration and respiratory mechanics improve in obese patients during FCV.
Methods
We compared FCV and volume-controlled (VCV) ventilation in 23 obese patients in a randomized cross-over setting. Starting with baseline (BL) measurements, ventilation settings were kept identical except for the ventilation mode related differences (VCV: I:E ratio 1:2 with passive expiration, FCV I:E ratio 1:1 with active, linearized expiration). Primary endpoint of the study was the change of end-expiratory lung volume (EELV) compared to BL ventilation. Secondary endpoints were the change of mean lung volume (MLV), respiratory mechanics and hemodynamic variables.
Results
The loss of EELV and MLV compared to BL was lower during FCV compared to VCV (ΔEELV: FCV, -126 ±207 ml; VCV, -316 ±254 ml; p < 0.001, ΔMLV: FCV, -108.2 ±198.6 ml; VCV, -315.8 ±252.1 ml; p < 0.001) and at comparable plateau pressure (PPlat: BL, 19.6 ±3.7; VCV, 20.2 ±3.4; FCV, 20.2 ±3.8 cmH2O; p = 0.441), mean tracheal pressure was higher (Pmean: BL, 13.1 ±1.1; VCV, 12.9 ±1.2; FCV, 14.8 ±2.2 cmH2O; p < 0.001). All other respiratory and hemodynamic variables were comparable between the ventilation modes.
Conclusions
This study clearly demonstrates that, compared to VCV, FCV improves regional ventilation distribution of the lung at comparable PEEP, tidal volume, PPlat and ventilation frequency.