bluuebunny/crossref_metadata_2025 huggingface dataset:
Clinical stress among undergraduate nursing students: perceptions of clinical nursing faculty
Authors: Stubin Catherine
Published: July 2020

Clinical faculty have a critical role in recognizing the stress students experience in the clinical environment. Despite an increasing body of research on stress and student perceptions of stress, faculty perceptions of student stress have been relatively unexplored. A qualitative descriptive design provided a rich description of clinical nursing faculty perceptions of undergraduate baccalaureate nursing student stress in the clinical environment. Colaizzi's method guided data analysis. Four themes that emerged from the interview data were: feeling overwhelmed when encountering the unknown, which included the sub-themes of facing self-doubt and experiencing insecurity in nursing actions; struggling with personal life factors; enduring uncivil clinical interactions; and contending with nursing faculty interactions. This study assists in filling the gap for nursing education by providing a rich description of student stress as described by faculty. Implications include providing faculty a clearer understanding of the stress phenomenon so they may better educate and evaluate students.
Synthesis of chlorine dioxide stable solution by combined reduction and its decomposition kinetics
Authors: Qi Minghui , Huang Lijie , Xu Xiaofeng , Yi Tan , Xu Hao , Zhao Hanyu , Huang Chongxing , Wang Shuangfei , Liu Yang
Published: July 2020

Chlorine dioxide is classified by the World Health Organization as a fourth-generation A1, widely used, safe, and effective disinfectant. It is widely used in bleaching, water treatment, oil extraction, aquaculture, plants, fruits and vegetables, meat products, preservation of aquatic products, food sterilization and sterilization industries. The technology of chlorine dioxide produced by the combination reduction method is widely used in domestic papermaking related companies. In order to promote the application of chlorine dioxide, the effects of storage conditions on the stability of chlorine dioxide solution prepared by the combination reduction method and the experimental study of decomposition kinetics were studied. Experiments have shown that high temperature, high pH and high initial concentration accelerate the decomposition of chlorine dioxide solution, and the addition of sodium dihydrogen phosphate (NaH2PO4) and dimethyl sulfoxide (DMSO) can inhibit the decomposition of chlorine dioxide. The kinetic experiments showed that the decomposition rate of chlorine dioxide was secondary to ClO2 and was −0.406 for

[

H

+

]

[{\mathrm{H}^{+}}]

. The apparent activation energy of chlorine dioxide solution decomposition reaction was 26.7 kJ·mol−1, and the decomposition rate equation of chlorine dioxide was established.
Effect of bark content in mixed hardwood chips on pulp and papermaking properties
Authors: Tripathi Sandeep Kumar , Alam Izhar , Bhardwaj Nishi Kant
Published: July 2020

Effect of different proportions of bark in mixed hardwood (about 70 % eucalyptus and 30 % poplar) chips on pulp and papermaking properties was studied. Increased proportion of bark in raw material chips resulted in increased active alkali consumption, increased reject content in pulp and reduced pulp yield after kraft pulping. The unbleached pulp obtained with higher proportion of bark in mixed hardwood chips also has higher kappa number, lower brightness and viscosity as compared to pulp obtained with bark free mixed hardwood chips. The soda loss and ash content in pulp were severely increased from 12.8 kg/t to 312 kg/t of pulp and 0.7 % to 21.1 %, respectively with the increase of bark portion from 0 to 100 % in raw material furnish. The physical strength properties like tensile, burst and tear indices in the pulp obtained from bark were reduced by 58.5 %, 60.7 % and 68.4 %, respectively as compared to that with bark free mixed hardwood.
Biosynthesized silver nanoparticles using Ulva lactuca as a safe synthetic pesticide (in vitro)
Authors: Amin Hadear Hanie
Published: July 2020

In this era, we must synthesize safe pesticides from inexpensive sources to avoid the diseases caused by most of the previously used pesticides. Therefore, nanotechnology was used to produce biologically synthesis pesticides from very cheap sources such as seaweed, especially green algae, as it is safe to synthesize a pesticide against various pests such as bacteria and fungi that affect various agricultural crops. Ulva lactuca is used for the biosynthesis of silver nanoparticles by a bottom-up bioreduction reaction of silver nitrate to silver nanoparticles (Ag-NPs) observed by the formation of brown color. The biosynthesis reaction has been proven by using UV-VIS, FT-IR, EDAX, SEM, TEM, and DSC-TGA and has been tested against a wide range of bacteria and fungi that affect plants, poultry, fish, rabbits, animals, and humans. Antioxidant activity was also determined. Silver nanoparticles (Ag-NPs) have proven to be good and safe synthetic pesticides. The results of the spectroscopy demonstrated the success of the biological synthesis of the pesticide. Also, the results of the antimicrobial activity demonstrated the success of the pesticide that was biologically synthesized to fight bacteria and fungi that cause different diseases of different agricultural crops and should be used as a safe synthetic pesticide.
Fragment-based approach to novel bioactive purine derivatives
Authors: Krasnov Victor P. , Levit Galina L. , Musiyak Vera V. , Gruzdev Dmitry A. , Charushin Valery N.
Published: July 2020

Using purine as a scaffold, the methods for preparation of novel 2-aminopurine and purine derivatives substituted at position C
6 by the fragments of natural amino acids, short peptides, and N-heterocycles, including enantiopure ones, have been proposed. The methods for determination of the enantiomeric purity of the obtained chiral compounds have been developed. Conjugates exhibiting high antimycobacterial or anti-herpesvirus activity against both laboratory and multidrug-resistant strains were revealed among the obtained compounds.
Factors affecting aerobic granule sludge formation in leachate treatment – a systematic review
Authors: Seid-mohammadi Abdolmotaleb , Nouri Fatemeh , Asadi Fateme
Published: July 2020

The biological treatment of landfill leachate due to high concentration of Chemical Oxygen Demand (COD), ammonia, and other toxic compounds is so difficult. One of the leachate treatment technology is the sludge biogranulation, that containing the two aerobic and anaerobic process. The aim of this study was conducted for determining the main factors affecting aerobic granule sludge formation in leachate treatment. In this study, all related papers in international databases were evaluated including Google Scholar, Science Direct, and PubMed, Also Open Access Journal Directory from 1990 until 2020 were investigated. The keywords used included Aerobic Granule Sludge (AGS), leachate treatment, Wastewater treatment, Granular Sequential Batch Reactors (GSBR), Formation Extracellular polymeric substance (EPS). Overall, 2,658 articles were retrieved of which 71 were selected after revising the titles and abstracts. Aerobic granulation has been only lately studied and a limited number of studies have been devoted to identification aspects of the process such as the organic source, and other factor affecting on formation granules. Some factors as shear stress, settling time, and the effluent discharge site have direct effect on the efficiency of aerobic granules reactor and other factors such as divalent metal ions, dissolved oxygen concentration, the ratio of height to diameter of the reactor, temperature affecting on the granulation process. If suitable conditions provide, the aerobic granule sludge process can be useful for leachate treatment.
Die unangreifbare Phantasie vom Ich
Authors: Sürig Inken
Published: July 2020

Dieser Beitrag befasst sich mit den Strukturmerkmalen von Weblogs und der Frage, was Bloggen als soziale Praxis konstituiert. Blogs werden als selbstveröffentlichte Textprodukte untersucht, in denen soziale Autonomie und Deutungshoheit über das gewählte Blogthema reklamiert werden. Die Sequenzanalyse von Blogtexten, die im Blog über das Blog veröffentlicht werden, bringt hervor, dass es sich beim Bloggen um eine soziale Praxis handelt, mit der eine unangreifbare Phantasie vom Ich realisiert wird, die vom Lesepublikum weder angezweifelt noch kritisiert werden kann. Bloggen ist entsprechend eine selbstgenügsame Praxis, die es dem/der BloggerIn ermöglicht, sich selbst als adäquate Person zu rezipieren.
A New Hybrid Input Strategy to Reproduce Across-Fault Ground Motions on Multi-Shaking Tables
Authors: Lin Yuanzheng , Chen Yiqian , Zong Zhouhong , Lin Jin , Tang Guangwu , He Xiaohui
Published: July 2020

Extended engineering structures such as bridges, tunnels, and pipelines are vulnerable to surface fault ruptures, and thus large-scale tests using multi-shaking tables are necessary to investigate the structural performance in this special scenario. Because of the properties of the conventional displacement-controlled shaking table system with proportional-integral-derivative controllers, acceleration and displacement input strategies have respective drawbacks when used to reproduce across-fault ground motions. This study presents a new hybrid input strategy to reproduce across-fault ground motions on multi-shaking tables, which overcomes the limitations of traditional acceleration or displacement input. In particular, the new input strategy aims to match both low-frequency displacements and high-frequency accelerations. The proposed hybrid input strategy was validated by the previously performed shaking table tests of a steel-concrete composite rigid-frame bridge under the across-fault ground motions. For comparison, conventional acceleration and displacement input strategies were also used in the tests to excite the bridge model. Test results including the reproduced ground motions and the structural responses obtained by the three input strategies are presented and compared. The test results indicate that the proposed hybrid input strategy can reproduce across-fault ground motions with improved fidelity on conventional multi-shaking tables. This study can provide useful references for the shaking table tests of bridge, tunnel and pipeline structures with the consideration of crossing fault-rupture zones.
“It’s with Tokens”
Authors: Slonecker Blake
Published: July 2020

This article examines the evolving relationship between the women’s liberation movement and the underground press in Seattle between 1967 and 1970, arguing that the mixed-sex alternative media belatedly embraced feminist ideals but failed to establish robust feminist institutional cultures. Prior to 1969, the hierarchical work environment and masculine aesthetic of the Helix (1967–1970) proved inhospitable to feminist critiques. Beginning in 1969, the emergence of democratic work collectives and increasing coverage of feminism at the Helix and its successor, the Sabot (1970), provided the print space for radical women to organize and confront Movement men about toxic masculinity. By analyzing the relationship between women’s liberation and the underground press in Seattle, this article illuminates the ambivalent role of the underground press in applying feminist ideals to the cultural politics of the Movement in Seattle and nationwide.
Governance of electoral preferences: consensus expectations and voting intention in students of a public university
Authors: Garcia Lirios Cruz , Carreón Guillén Javier , Hernández Valdés Jorge
Published: July 2020

The objective of this work was to validate a predictive model of voting intention. An exploratory, cross-sectional and correlation study was carried out with an intentional sample of 253 students from a public university, considering the intensive use of electronic networks. Three factors were found that explained 70 % of the variance. Although the research design limits the results to the study sample, the extension of the model to other scenarios is suggested.
Revistas de Ciencias Sociales en el modelo de clasificación de Publindex: prospectiva de la convocatoria n.º 830 del 2018 en la fase III. Impacto de la revista científica
Authors: Corchuelo-Rodríguez Camilo Alejandro , Patacón-Ruiz Ingrid Paola , Piza-Amado Karol
Published: July 2020

Este artículo analiza las revistas de ciencias sociales clasificadas en la convocatoria n.º 768 del 2016 de Publindex y su proyección para la convocatoria n.º 830 del 2018 en la fase III, que mide el impacto de la revista científica de acuerdo con el índice H5. Mediante un estudio bibliométrico, se analizaron 112 revistas; con ayuda del aplicativo Harzing’s Publish or Peris (POP) se realizaron seis consultas por cada revista para identificar el H5 de mayor ponderación y proceder al análisis de cuartiles que determinan la proyección de la clasificación de las revistas en la convocatoria Publindex del 2018. Como resultado se identificó que el 30,2 % (34) de las revistas presentó un crecimiento promedio de 1,2 en el índice H5; además, el límite del cuartil superior lo marca la revista Estudios Gerenciales de la Universidad ICESI, con 32, y el 42 % de las revistas perdería su clasificación por estar fuera del límite intercuartil (Límite Q2-Q3 = 10).
The Genome Sequence of the Octocoral Paramuricea clavata – A Key Resource To Study the Impact of Climate Change in the Mediterranean
Authors: Ledoux Jean-Baptiste , Cruz Fernando , Gómez-Garrido Jèssica , Antoni Regina , Blanc Julie , Gómez-Gras Daniel , Kipson Silvija , López-Sendino Paula , Antunes Agostinho , Linares Cristina , Gut Marta , Alioto Tyler , Garrabou Joaquim
Published: July 2020

The octocoral, Paramuricea clavata, is a habitat-forming anthozoan with a key ecological role in rocky benthic and biodiversity-rich communities in the Mediterranean and Eastern Atlantic. Shallow populations of P. clavata in the North-Western Mediterranean are severely affected by warming-induced mass mortality events (MMEs). These MMEs have differentially impacted individuals and populations of P. clavata (i.e., varied levels of tissue necrosis and mortality rates) over thousands of kilometers of coastal areas. The eco-evolutionary processes, including genetic factors, contributing to these differential responses remain to be characterized. Here, we sequenced a P. clavata individual with short and long read technologies, producing 169.98 Gb of Illumina paired-end and 3.55 Gb of Oxford Nanopore Technologies (ONT) reads. We obtained a de novo genome assembly accounting for 607 Mb in 64,145 scaffolds. The contig and scaffold N50s are 19.15 Kb and 23.92 Kb, respectively. Despite of the low contiguity of the assembly, its gene completeness is relatively high, including 75.8% complete and 9.4% fragmented genes out of the 978 metazoan genes contained in the metazoa_odb9 database. A total of 62,652 protein-coding genes have been annotated. This assembly is one of the few octocoral genomes currently available. This is undoubtedly a valuable resource for characterizing the genetic bases of the differential responses to thermal stress and for the identification of thermo-resistant individuals and populations. Overall, having the genome of P. clavata will facilitate studies of various aspects of its evolutionary ecology and elaboration of effective conservation plans such as active restoration to overcome the threats of global change.
Recension de The Sociology of Food and Agriculture de Michael Carolan
Authors: Rondeau Serge-Olivier
Published: July 2020

The Sociology of Food and Agriculture (SAA) permet de voir l’étendue du champ de la SAA, saisir son évolution, cerner ses objets, se familiariser avec les approches méthodologiques et les enjeux qui la traverse.
Indigenous Food Systems: Concepts, Cases and Conversations
Authors: Lowitt Kristen
Published: July 2020

Book review of Indigenous Food Systems: Concepts, Cases and Conversations.
The Strawberry Squeeze - a review of Wilted: Chemicals, Pathogens and the Fragile Future of the Strawberry Industry
Authors: Haase Janette
Published: July 2020

Book review of Julie Guthman's Wilted: Pathogens, Chemicals and the Fragile Future of the Strawberry Industry
ACTIVIDADES DEPORTIVAS CON SOPORTE MUSICAL: ¿UNA NUEVA FORMA DE APRENDER REANIMACIÓN CARDIOPULMONAR?
Authors: Navarro-Patón R. , Freire-Tellado M. , Mateos-Lorenzo J. , Basanta-Camiño S. , Rodríguez-López A. , Lago-Ballesteros J.
Published: July 2020

El objetivo del estudio fue analizar la viabilidad de enseñar RCP en actividades deportivas con apoyo musical y evaluar si este nuevo enfoque iguala los resultados de un curso tradicional de reanimación cardiopulmonar (RCP). Participaron 84 estudiantes universitarias sin conocimientos de RCP distribuidas en dos grupos de forma aleatoria. El primero recibió formación de RCP sólo manos integradas en una clase de aeróbic y el otro recibió un curso de RCP de manera convencional. Los resultados en la clase coreografiada comparados con el curso tradicional fueron: Profundidad media de compresiones (41,64 vs 42,92; p= 0,446), re-expansión correcta (65,47% vs 72,47%; p=0,423), frecuencia de compresiones en un minuto (102,50 vs 138,53; p<0,001), compresiones totales (202,50 vs 277,95; p< 0,001). Los dos métodos formativos alcanzaron resultados similares por lo que la introducción de la enseñanza de RCP en actividades deportivas puede ser un nuevo método formativo.
DOLOR EN EL ENTRENAMIENTO EN EL KARATE DE COMPETICIÓN. ESTUDIO DE PREVALENCIA
Authors: Valcárcel-Linares D. , Torres-Lacomba M.
Published: July 2020

Objetivos: conocer la prevalencia de dolor derivada del entrenamiento en karatekas de competición y su relación con los factores antropométricos y deportivos. Métodos: Estudio de prevalencia. Un total de 56 karatekas cumplimentaron un cuestionario al finalizar su entrenamiento de karate. Resultados: La prevalencia del dolor ha sido del 67.9%. Se ha demostrado que la rodilla es la zona más prevalente en relación con el dolor (31%) y con la sensación subjetiva de inestabilidad (50%). Se han encontrado relaciones estadísticamente significativas entre el dolor y la edad (p=0.04), el Índice de Masa Corporal (p=0.045), el grado de cinturón (p=0.017) y la frecuencia de entrenamiento de karate (p=0.011). Conclusiones: el dolor en karatekas de competición durante los entrenamientos muestra una alta prevalencia en la muestra estudiada. Hubo una correlación estadísticamente significativa en el dolor en los karatekas con un mayor índice de masa corporal, mayor edad, mayor grado de cinturón y mayor frecuencia de entrenamiento.
ANTROPOMETRÍA Y FUERZA, SU INFLUENCIA SOBRE EL TEST SIT AND REACH
Authors: J.L. Delgado-Martín , Garoz-Puerta I. , Miguel-Tobal F. , Martínez-de-Haro V.
Published: July 2020

Se analiza la influencia que tienen las variables cineantropométricas y dinamométricas sobre el test Sit and Reach en deportistas amateur. Se tomaron veinte variables antropométricas, cuatro pruebas de dinamometría, el test Sit and Reach y la actividad física realizada. Encontramos diferencias significativas en los valores de flexibilidad entre hombres y mujeres. Las ecuaciones de predicción fueron diferentes en hombres y en mujeres (30.6% y 32.5%), en las mujeres apareció la talla como factor influyente. La ecuación general de predicción calculada se obtiene un 39,1% (moderada). Hombres y mujeres se diferencian significativamente en todas las variables antropométricas excepto en pliegue subescapular y suprailiaco. ¿Qué otros factores influirían sobre una posible predicción del resultado? Los valores de flexibilidad no se consideran influenciados por las variables antropométricas, dinamométricas y la tipología de actividad física realizada. El índice de fuerza no correlaciona con el valor del test Sit and Reach.
KEBIJAKAN RENCANA PEMBANGUNAN DESA SEBAGAI USAHA KESEJAHTERAAN SOSIAL MASYARAKAT DI DESA CIDOKOM
Authors: Khoeriyah Enung
Published: July 2020

Abstract. Village management is a crucial as the government closest unit to the community. So it needs a clear planning and arrangement to realize the welfare of the local community. A transparent planning involving citizens through the Village Mid-Term Development Plan (RPJM Desa) and the Village Government Work Plan (RKP Desa). Citizens’ engagement will produce results like meeting the needs of clothing, food and shelter, as well as to have an easy access to various services and other social activities. But creating a prosperous village community is uneasy; a government policy should be in place to regulate the welfare efforts, one of which is through a development policy. This research uses a descriptive qualitative approach. Data collection is performed through observation, interviews and documentation study. The findings show that the village development planning policy carried out based on the stages adjusted to the policy promulgated by the central government through Village Law Number 6 of 2014. Furthermore, it contains the elaboration of the stages of village development planning adjusted to the priority development policies. It is through this policy priority that Cidokom Village conducts a development program to improve the welfare of the village community. Abstrak. Pengelolaan desa menjadi penting, sebab unit pemerintahan tersebut paling dekat dengan masyarakat. Sehingga perlu perencanaan dan penataan yang jelas untuk mewujudkan kesajahteraan masyarakat setempat. Perencanaan yang transparan dan juga melibatkan warga dapat melalui Rencana Pembangunan Jangka Menengah Desa (RPJMDesa) dan Rencana Kerja Pemerintah Desa (RKPDesa). Pelibatan Warga akan membuahkan hasil terhadap terpenuhinya kebutuhann sandang, pangan, dan papan., serta untuk memiliki akses yang mudah pada berbagai layanan dan kegiatan sosial lainnya. Namun mewujudkan masyarakat desa yang sejahtera tidaklah mudah, perlu adanya kebijakan pemerintah yang mengatur langsung usaha kesejahteraan, salah satunya melalui pembangunan. Penelitian ini mengunakan pendekatan kualitatif deskriprif. Tujuannya untuk memudahkan peneliti dalam menjelaskan bagaiman hasil temuan diperoleh di lapangan. Adapun metodenya melalui observasi, wawancara dan juga studi dokumentasi. Hasil penelitian menunjukan bahwa kebijakan perencanaan pembangunan desa dilakukan berdasarkan tahapan yang disesuaikan dengan kebijakan yangtelah dibuat olehpemerintahpusat melalui undang- undang desa nomor 6 tahun 2014. Selanjutnya berisi penjabaran tahapan perencanaan pembangunan desa yang disesuaikan dengan kebijakan prioritas pembangunan. Melalui prioritas kebijakan inilah Cidokom melakukan program pembangunan untuk meningkatkan kesejahteraan masyarakat desa.
PERAN PEKERJA SOSIAL MEDIS SEBAGAI PENDIDIK DALAM PROSES KEMANDIRIAN PASIEN SKIZOFRENIA DI REHABILITASI PSIKOSOSIAL JAKARTA
Authors: Sari Novita , Nurhayati Nurhayati
Published: July 2020

Abstract. Medical social workers are important in serving patients, specifically in assisting patients in recovery. One of the roles of medical social workers here is as an educator. The role of educators social workers can help people access into information about what is happening in their community, educate the public to build awareness about health problems in their environment, learn about the successes and failures of health efforts, build awareness and habits about healthy lifestyles, and teach ways organizing community activities in health efforts for Schizophrenic patients. The method used in this research is qualitative research. The study subjects consisted of five informants, two Medical Social Workers, and three Schizophrenia patients at the Psychosocial Rehabilitation of Dr. Suharto Heerdjan’s Psychiatric Hospital. Data collection is done by observation, interview and documentation. The results of this study: if a schizophrenic patient does many activities to reduce hallucinations, it will have a positive impact on him. In Psychosocial Rehabilitation of Dr. Suharto Heerdjan’s Psychiatric Hospital, provided services aimed at making patients independent and reducing recurrence for Schizophrenia patients. Besides that, the patient has skills that are taught as the patient’s experience to return to function in the community. Abstrak. Pekerja sosial medis berperan penting dalam melayani pasien, khususnya dalam mendampingi pasien dalam masa pemulihan. Salah satu peran pekerja sosial medis di sini yaitu sebagai pendidik. Peran pendidik pekerja sosial dapat membantu masyarakat akses pada informasi tentang apa yang terjadi dalam masyarakatnya, mendidik masyarakat untuk membangun kesadaran tentang masalah-masalah kesehatan di lingkungannya, mempelajari kesuksesan dan kegagalan dari usaha kesehatan, membangun  kesadaran dan kebiasaan tentang pola hidup sehat, serta mengajarkan cara mengorganisasikan keggiatan masyarakat dalam usaha kesehatan bagi pasien Skizofrenina. Metode yang digunakan pada penelitian ini adalah penelitian kualitatif. Subyek penelitian terdiri dari lima informan, dua Pekerja Sosial Medis, dan tiga pasien Skizofrenia di Rehabilitasi Psikososial Rumah Sakit Jiwa Dr. Soeharto Heerdjan. Pengumpulan data dilakukan dengan observasi, wawancara dan dokumentasi. Hasil dari penelitian ini: jika pasien skizofrenia melakukan banyak kegiatan untuk mengurangi berhalusinasi, hal itu memberi dampak positif bagi dirinya. Di Rehabilitasi Psikososial Rumah Sakit Jiwa Dr. Soeharto Heerdjan, diberikan pelayanan yang bertujuan membuat pasien mandiri dan mengurangi kekambuhan bagi pasien Skizofrenia.  Selain itu membuat pasien memiliki keterampilan yang diajarkan sebagai pengalaman pasien untuk kembali berfungsi di lingkungan masyarakat.
Design principles as bridge between scientific knowledge production and practice design
Authors: Euler Dieter
Published: July 2020

This paper uses design-based research (DBR) to describe an approach that combines scientific knowledge production with the development of innovative practice concepts. The DBR research process begins with the following question: How can an aspired, initially vaguely formulated goal be reached by a yet to be developed design? As the research process progresses, interventions are developed, tested in the field, and evaluated. This process generates increasingly stable practice concepts for reaching the aspired goals through several iterative cycles and statements about the effectiveness of the intervention’s supporting pillars based on theoretical and empirical research. These statements are developed in the form of design principles. In this paper, we describe the characteristics that constitute design principles and how they emerge within a DBR research process.
Design-based research on the way to mainstream research? Comments on the plea for phronesis by Bardone and Bauters
Authors: Reinmann Gabi
Published: July 2020

Bardone and Bauters suggest a re-conceptualization of design-based research using the classical term "phronesis" and question some methodological developments referring to the role of intervention and theory in design-based research. This discussion article is a comment on the text of Bardone and Bauters and pursues two aims: On the one hand the term “phronesis” is connected to the traditional concept of “pädagogischer Takt” (literally: “pedagogical tact”) to stimulate a joint discourse of both traditions. On the other hand, two main suggestions of Bardone und Bauters are critically examined, namely their proposal to conceptualize intervention in design-based research exclusively as an action, and their call for deriving generalizations via experiences instead of theories. The discussion article finally argues for maintaining the integrative power of design-based research by avoiding one-sided interpretations.
MENYOAL KONSISTENSI METODE PENAFSIRAN BINT SYATHI TENTANG MANUSIA DALAM AL-QUR’AN (Studi Kitab Maqāl Fī Al-Insān: Dirasah Qur’aniyyah)
Authors: Alwi HS Muhammad , Parninsih Iin
Published: July 2020

Bint al-Syathi adalah seorang penafsir perempuan pertama yang memiliki kitab tafsir, namanya sangat berpengauh dalam perkembangan sejarah pemikiran Islam. Pemikiran Bint al-Syathi banyak dipengaruhi oleh suami sekaligus gurunya, Amin Al-Khuliy. Artikel ini bertujuan untuk mendiskusikan pemikiran salah satu tokoh perempuan, Bint Syathitentang konsistensi metode penafsirannya ketika menafsirkan manusia dalam karyanya “Kitab Maqāl Fi Al-Insān: Dirāsah Qur’āniyyah”Penelitian ini menggunakan metode deskripsi-analitis dengan menggunakan teori Pra-pemahaman, yakni segala sesuatu yang mempengaruhi pembaca teks yang menentukan dalam memberikan penafsiran, seperti latar belakang sosial, pendidikan dan sebagainya, sehingga setiap penafsiran senantaisa terikat dengan ruang lingkup penafsir.Hasil penelitian ini menunjukan,Bint al-Syathi hendak mengekspor eksistensi manusia dilihat dari sudut pandang Alquran. Manusia mengalami perjalanan panjang dari polemik penciptaannya, kemudian manusia sebagai al-Bashar, tumbuh menjadi manusia dengan penalarannya, sehingga sampai pada kesanggupan atau tidaknya manusia menjadi khalifah di bumi sebagai penerimaamanat dari Allah.Dalam menjelaskan kosa kata yang merujuk pada manusia, Bint al-Syathi nampak tidak konsisten dalam mengaplikaskan metodenya. Khususnya yang berkaitan dengan kosakata manusia. Ia hanya menjelaskan sesuai metode yang ditawarkan pada kata al-Insān, tetapitidak pada kata nās, ins ataupun al-Bashar.
Evaluation of Sagittal Root Positions and Bone Perforation in Anterior Teeth Using Cone Beam Computed Tomography: An Observational Study
Authors: Medikeri Raghavendra S. , Sinha Kumar Ankit , Chandak Shruti , Ghogare Pratiksha
Published: July 2020

Cone beam computed tomography (CBCT) and virtual implant help clinicians assess implant positioning with nearby vital structures and plan implant surgical procedures. Thus, the current study aims to evaluate the anterior sagittal root position and assess labial bone perforations in CBCT images. This study was carried out using CBCT scans of 140 samples involving 1338 teeth. The Digital Imaging and Communications in Medicine (DICOM) files were imported into Carestream 3-dimensional imaging software for analysis. All measurements were made in the appropriate section slice of 200-μm thickness in a darkened room. A standardized orientation was established by 2 examiners. The sagittal root positions (SRPs) were assessed in maxillary and mandibular anterior teeth. Labial bone perforation (LBP) was assessed using tapered implants in the virtual implant software. Overall, Class I SRP was highest (81.48% and 38.49%, respectively) in both the sextants. The SRP for Class I was most prevalent in canine teeth in both arches (87.96% and 56.45%, respectively), followed by incisors in other types in the maxillary arch. In the mandibular arch, both incisors were in Class IV and I relationships. The overall LBP was 4.26% and was more likely in the mandibular arch (5.64%) than in the maxillary arch (2.8%). The mandibular central incisors showed the highest rate of perforation (8.5% to 11.93%). The SRP and LBP did not show a statistically significant difference between the right and left sides in both arches. The correlation coefficient between SRP and LBP showed a statistically significant result (P < .01). Class I SRP was the most prevalent in maxillary and mandibular arches. Significantly more perforations occurred with mandibular anterior teeth and in Class IV SRP types (approximately 10% to 30%), which suggests that implant placement requires careful presurgical planning and regenerative approaches or delayed implant placement may be considered.
Is Perioperative Antibiotic Necessary in Straightforward Implant Placement Procedures?
Authors: Bedeloğlu Elçin , Yalçın Mustafa , Koyuncuoğlu Cenker Zeki
Published: July 2020

The purpose of this nonrandom retrospective cohort study was to evaluate the impact of perioperative antibiotic on early outcomes, including postoperative pain, swelling, bleeding, and cyanosis, in patients undergoing dental implant placement before prosthetic loading. Seventy-five patients (45 men, 30 women) who had completed dental implant placement were included in the study. Patients who used perioperative antibiotics comprised the experimental group, and those who did not comprised the control group. The experimental group received 2 g amoxicillin + clavulanic acid 1 hour before surgery and 1 g amoxicillin + clavulanic acid twice a day for 5 days after surgery. The control group received no perioperative antibiotic therapy. Data on pain, swelling, bleeding, cyanosis, flap dehiscence, suppuration, and implant failure were analyzed on postoperative days 2, 7, and 14 and at week 12. No statistically significant difference was detected between the 2 groups with regard to pain and swelling on postoperative days 2, 7, and 14 and week 12 (P > .05), while the severity of pain and swelling were greater on day 2 than on days 7 and 14 and week 12 in both groups (P = .001 and P < .05, respectively). Similarly, no significant difference was found between the 2 groups with regard to postoperative bleeding and cyanosis. Although flap dehiscence was more severe on day 7 in the experimental group, no significant difference was found between the 2 groups with regard to the percentage of flap dehiscence assessed at other time points. Within the limitations of the study, it has been demonstrated that antibiotic use has no effect on implant failure rates in dental implant surgery with a limited number of implants. We conclude that perioperative antibiotic use may not be required in straightforward implant placement procedures. Further randomized controlled clinical studies with more patients and implants are needed to substantiate our findings.
Data mining of DNA sequences submitted by Peruvian institutions to public genetic databases
Authors: Romero Pedro , Castillo-Vilcahuaman Camila
Published: July 2020

Peru is one of the most biodiverse countries in the world. Genetic diversity is an important component of biodiversity, and it is crucial for current efforts to protect and sustainably manage several organisms and habitats. As far as we know, there is only one work describing Peruvian genetic information stored in public databases. We aimed to update this previous work searching in four public databases that stored sequencing information: Nucleotide, BioProject, PATRIC), BOLD. With this information we comment on the contribution of Peruvian institutions during recent years. In Nucleotide, the largest database, Bacteria are the most sequenced organisms by Peruvian institutions (70.60%), pathogenic bacteria such as Pasteurella multocida, Neisseria meningitidis, and Vibrio parahaemolyticus were the most abundant. We found no sequence records from the Archaea domain. In BioProject, the most common sequence belongs to Salmonella enterica subsp. enterica serovar Infantis. In PATRIC, a database for pathogenic agents, Mycobacterium tuberculosis and Yersinia pestis had the highest number of entries. Finally, in BOLD, exclusively Eukaryotic database, Chordata (Aves and Actinopterygii), Angiospermae, and Arthropoda (Insecta, and Arachnida) were the most frequent records. Our results would indicate research preferences of Peruvian institutions, focusing on infectious diseases. Although there has been a significant increase of DNA information submitted by Peruvian institutions since the last report, the genetic diversity reflected in these databases remains inconsistent with the diversity in the country. More efforts must be made to know obtain genetic information from more underestimated taxonomic groups and to promote more genetic research in regional Peruvian institutions.
Stability analysis of a cave excavated in granular cohesionless material
Authors: Lopes Bruna de Carvalho Faria Lima , Tarantino Alessandro
Published: July 2020

The paper presents an analysis of the long-term stability of a large unsupported cave excavated in granular cohesionless material in Ficulle, Italy. The stability of the cave arises from a ‘cohesive’ term in the shear strength criterion and this paper investigates the source of this cohesive term. Contrary to expectations, the material appeared to be granular (cohesionless) at the touch. The investigation started by determining whether the stability of the cave was attributable to any cementation bonding the soil particles. Microstructural analyses, together with geomechanical testing, produced enough evidence to suggest that the material was not naturally cemented. On the other hand, water-undrained direct shear tests on unsaturated intact specimens indicated the presence of significant apparent cohesion, which was then linked to the existence of suction in the material. In this way, the stability of the cave was assessed accounting for the beneficial effects of suction and partial saturation on shear strength. A three-dimensional analysis based on the upper bound theorem of plasticity was successful in confirming the stability of the cave in terms of the state of the structure at the time of field investigation. In addition, it was shown that 24 and 48 h rainfalls of 100 years return period are not sufficient to relieve suction sufficiently to bring the cave to collapse, thus justifying the observed long-term stability of the cave. Suction is rarely included in geotechnical design under the assumption that it cannot be relied upon owing to the potentially adverse effect of rainwater infiltration. This case study demonstrates that suction can indeed remain ‘active’ naturally for a long time, contributing to the long-term stability of geo-structures.
Performance of a self-installing monopiled gravity base structure under lateral loading
Authors: Stone Kevin J. L. , Diakoumi Maria
Published: July 2020

This paper presents a physical model study of the feasibility and performance of a monopiled gravity base structure (MGBS) for offshore foundation applications. The research study builds on the current interest in hybrid foundation systems such as monopiled footings. The proposed MGBS is essentially a conventional gravity base structure (GBS) with a projecting monopile or caisson. The system relies on the self-weight of the GBS to drive the projecting monopile into the seabed. Once installed, additional ballast can be added to the GBS, and if necessary installation of the projecting monopile can be enhanced through the use of suction. The test programme has concentrated on the response of the system once installed and has investigated a range of geometries for circular monopiles. The results clearly demonstrate a significant enhancement to lateral resistance offered by the addition of a monopile to a GBS.
Vertical seismic isolated rocking-core system
Authors: Nekooei Masoud , Rahgozar Navid , Rahgozar Nima
Published: July 2020

Mass isolation of structures is an efficient vibration-control technique for reducing earthquake effects on buildings. This paper introduces a vertical seismic isolated rocking-core system (VSI-RCS) in which a controlled rocking-core is separated from the frame by viscous fuses. The controlled rocking-core provides the self-centring capability while the viscous dampers limit the lateral displacement and dissipate the majority of the seismic energy. An analytical solution is proposed for estimation of the optimal damping constant of the dampers along with the corresponding fundamental frequencies and damping ratio of the VSI-RCS. A parametric study was carried out to quantify non-classical dynamic characteristics and spectral analysis was performed to examine the seismic performance of the VSI-RCS compared with rocking-core systems. The proposed formulas were found to be applicable for rapid eigen-analysis and, compared with non-isolated rocking-core systems, proper seismic efficiency of the VSI-RCS was observed.
Strengthening stone beams with prefabricated polymer-reinforced stone plates
Authors: Ye Yong , Miao Wei , Guo Zi-Xiong
Published: July 2020

A strengthening technique using prefabricated stone plates reinforced with carbon-fibre-reinforced-polymer bars is proposed to improve the flexural performance and maintain the original appearance of exposed stone beams. The effectiveness of the technique was experimentally evaluated using three stone beam specimens, considering the reinforcement ratio as the main parameter. For comparison, two specimens strengthened with near-surface-mounted (NSM) polymer bars and one bare stone specimen were also tested. The test results showed that the prefabricated plates shifted the failure mode of the stone beams from brittle fracture to more ductile behaviour manner accompanied by multiple flexural cracks. A significant increase in load-carrying and deformation capacities was observed and the flexural strength tended to increase with an increase in the polymer reinforcement ratio. No end-slip in the polymer bars was observed, indicating good bond characteristics between the prefabricated plates and the stone beams and effective composite action. Compared with specimens with NSM polymer bars, the specimens strengthened with prefabricated polymer-reinforced plates showed similar load-carrying capacity. A simplified theoretical model for predicting the flexural strength of strengthened stone beams was developed and assessed.
Bond characteristics of glass-fibre-reinforced polymer bars in high-strength concrete
Authors: Lu Jennifer , Afefy Hamdy M. , Azimi Hossein , Sennah Khaled , Sayed-Ahmed Mahmoud
Published: July 2020

Fibre-reinforced polymer bars are rapidly becoming an approved alternative to conventional reinforcing steel bars, especially for severely exposed structures such as bridges. This paper reports on an experimental study on the bond characteristics of both sand-coated and ribbed-surface glass-fibre-reinforced polymer bars embedded in high-strength concrete (HSC). A total of 145 pull-out tests were conducted to examine the effect of varying parameters on the bond characteristics, namely embedment length, bar diameter, surface treatment and concrete cover. In addition, 45 pull-out tests were conducted to investigate the effect of providing headed-end anchorage for the sand-coated bars. The experimental results showed that the sand-coated bars exhibited better bond strength than the ribbed-surface bars, which entailed lower development lengths. Thus, based on the experimental results, expressions for the development length of both sand-coated and ribbed-surface bars embedded in HSC were developed and compared against the results of formulae in available design standards. The comparison revealed that ACI 440-1R-06 produced lower conservative results than CAN/CSA S806-12.
Innovative hybrid damper with structural steel and nickel–titanium shape memory alloy bars
Authors: Jalaeefar Ali , Asgarian Behrouz
Published: July 2020

An innovative structural fuse was developed based on the axial combination of structural steel and nickel–titanium (Nitinol) shape memory alloy (SMA) bars. To investigate the performance of the proposed system, six dampers with different steel and SMA configurations were evaluated experimentally under cyclic loads and the stress–strain curves of the samples were obtained. The results showed that as the amount of structural steel was increased with respect to the SMA, the energy dissipation capacity increased while the re-centring capability decreased and vice versa. An SMA/steel ratio of 1.0–1.5 produced energy dissipation and re-centring in a balanced amount. The proposed device thus has uses the advantages of both structural steel and SMA while limiting their disadvantages, with cyclic energy dissipation and strain recovery being the two contrary characteristics of the proposed dampers. Finite-element (FE) simulations were also conducted and the results were compared with the experimental results in order to verify the FE model. The FE model was able to accurately simulate the proposed hybrid damper.
Damage detection under temperature conditions using PCA – an application to the Z24 Bridge
Authors: Soo Lon Wah William , Chen Yung-Tsang , Elamin Ahmed , Roberts Gethin W.
Published: July 2020

Vibration properties of civil structures, which are commonly analysed for damage detection, are affected by changing environmental and operational conditions, and most notably are subjected to bilinear effects from changing ambient temperature conditions. Therefore, damage detection in structures during the past decade has focused on eliminating the effects of these changing environments that affect the vibration properties of the structures. Several methods have been proposed in the literature to tackle the non-linear effects from changing environments. However, these methods can only analyse systems (e.g. natural frequency–environmental and operational system) that have an incremental change in relationship; they cannot model the bilinear effects from the changing temperature conditions, which may lead to false alerts. Hence, a damage detection method is proposed in this paper to tackle the piecewise effects from changing temperature conditions. The method makes use of a Gaussian mixture model to separate the different effects acting on the structures and uses principal component analysis for data processing. The method is applied to the Z24 Bridge, in Switzerland, which was subjected to bilinear effects from changing temperature conditions. The results obtained demonstrate that the proposed method successfully takes into account the piecewise effects to indicate the presence of damage.
Empirical analysis of backwater level due to skewed bridge constriction
Authors: Haji Amou Assar Kimia , Atabay Serter , Yilmaz Abdullah Gokhan , Fattah Kazi Parvez
Published: July 2020

A simple empirical method is proposed for computing the backwater level for different bridge shapes and crossings in compound channels. A series of parametric studies was conducted on the influence of the Froude number, opening ratio, discharge and roughness coefficient on the backwater depth. The results of the parametric studies, along with multiple regression analysis, were used to derive a simple accurate mathematical model for computing backwater depth. The proposed method was first compared with the energy method for different skew angles and roughness cases. Comparison of the results of the proposed method and the energy method showed good correlations. The proposed method was also validated by comparing its results with experimental data for normal and skewed crossings at 30° and 45°. The overall absolute average percentage difference between the proposed method and the experimental data was found to be 5.1%, while the overall root mean square error was found to be 0.008.
Técnica de Rastreamento Ocular Revela Estratégias de Ações Múltiplas e não Lineares de Navegação Virtual de Alunos de EAD no AVA e na Internet
Authors: Junqueira Eduardo Santos
Published: July 2020

Ao oferecer múltiplas trajetórias para acesso a variados conteúdos, os ambientes hipermidiáticos criam novas possibilidades para o estudo e a aprendizagem on-line. No entanto, pouco se sabe sobre trajetórias de navegação virtual e suas relações com a aprendizagem na educação a distância (EaD). Esta pesquisa documentou movimentos de navegação virtual, através da utilização da técnica de rastreamento ocular, de alunos de graduação na modalidade EaD, no momento em que estudavam no ambiente virtual de aprendizagem (AVA) e na internet. Contatou-se que, ao navegar no AVA, em geral, os alunos não seguiram a sequência linear do ambiente e, especificamente nas páginas das Aulas, desprezaram alguns elementos imagéticos e hipertextuais por considera-los dispensáveis à aprendizagem. Os dados analisados originaram duas categorias de navegação virtual: simples, em que os alunos se concentram na navegação no AVA; e complexas, na qual os alunos percorreram trilhas diversas e acessaram websites, blogs, arquivos na rede e ampliaram os conteúdos disponibilizados no AVA. Isso gerou, em alguns casos, perda de foco na tarefa e dificuldades na compreensão de conceitos. Ressalta-se a ação autônoma do aluno de EaD ao formular e executar estratégias de navegação adequadas a seus objetivos de estudo, às características do AVA e aos materiais de estudo, visando realizar atividades programadas e aprender.