bluuebunny/crossref_metadata_2025 huggingface dataset:
Physiological and immune response of Litopenaeus vannamei undergoing the acute phase of the necrotizing hepatopancreatitis disease and after being treated with oxytetracycline and FF
Authors: Martínez-Córdova Luis R. , Gollas-Galván Teresa , Garibay-Valdez Estefanía , Valenzuela-Gutiérrez Rocío , Martínez Porchas Marcel , Porchas-Cornejo Marco A. , Sánchez-Paz Arturo , Mendoza-Cano Fernando
Published: June 2021

The physiological and immune responses of adult shrimp (Litopenaeus vannamei) undergoing the acute phase of the necrotizing hepatopancreatitis (NHP) disease and the efficiency of oxytetracycline (OXI) and florfenicol (FF) to eliminate the pathogen were evaluated. Four shrimp groups were considered: three groups infected with necrotizing hepatopancreatitis bacteria (NHP-B) (two treated with antibiotics and a positive control) and one group non-infected (negative control). Hemolymph concentration of glucose, lactate, acylglycerides, cholesterol, total protein, aminotransferases, superoxide dismutase, and the transcriptional expression of several immune related genes were monitored at the acute phase of the disease, and at 15 and 20 days after administration of antibiotics (daa). Shrimp from the positive control registered a mortality of 100%. NHP-B infection affected the immu-nophysiological response of shrimp; herein, most of the parameters were significantly up regulated in infected shrimp before the use of antibiotics, compared to the negative control. Increased transcriptional levels of clotting protein, lipopolysaccharide and β-1-3-glucan binding protein (LGBP), serine protease, peroxinectin, lysozyme, heat shock proteins (HSP) 60 and 70 were detected in shrimp treated with OXI. At 20 daa NHP-B was still detected in FF-treated shrimp, but not in OXI-treated shrimp. It is hypothesized that despite none of the antibiotics per se eliminated the bacterium, both had a negative effect on its virulence. OXI seems to have a greater effect, allowing shrimp to integrate a better immune response at 15 daa.
Abundance and spatial distribution of neustonic copepodits of Microsetella rosea (Harpacticoida: Ectinosomatidae) along the western Magellan coast, southern Chile
Authors: Cañete Juan I. , Gallardo Carlos S. , Olave Carlos , Romero María S. , Figueroa Tania , Haro Daniela
Published: June 2021

The pelagic harpacticoid copepod Microsetella rosea inhabits the cold waters along the temperate southern coast of Chile, where its population biology and ecological role in the neuston are unknown. During a CIMAR 16 Fiordos cruise realized in the Magellan Region, 26 neustonic samples were collected to analyze the abundance, spatial distribution of copepodits and oceanographic conditions (temperature, salinity, and dissolved oxygen). M. rosea copepodits, the most abundant holoneustonic taxa (30% of total abundance), were present at all sampled stations and were 0.5 times more abundant than calanoids. These copepodits inhabited waters ranging between 6.5-8.5°C and salinity of 26-33, with maximum abundances (1,000-10,000 ind/5 min horizontal drag) at means of 7.2 ± 0.6ºC and salinities of 30.7 ± 0.9. Froward Cape, Almirantazgo Sound, and Inútil Bay stations accounted for 65% of total M. rosea abundance, whereas Beagle Channel stations present the lowest abundances (<4%). The entire sampling area was as an oxygenated estuary (7.4 ± 0.4 mL L-1). Given the abundance and recurrence of M. rosea in the Magellanic neuston, future research should assess the ecological functions of this species. Finally, M. rosea could also be used as a biotracer for processes of aggregation in other estuarine neustonic communities of southern Chile.
Historical collections of vascular plants in the Korean Peninsula by three major collectors in the early 20th century: U. J. Faurie, E. J. Taquet, and E. H. Wilson
Authors: Kim Hui , Chang Chin-Sung , Kwon Shin Young
Published: June 2021

The digitization of historical collections aims to increase global access to scientific artifacts, especially those from currently inaccessible areas. Historical collections from North Korea deposited at foreign herbaria play a fundamental role in biodiversity transformation patterns. However, the biodiversity pattern distribution in this region remains poorly understood given the severe gaps in available geographic species distribution records. Access to a dominant proportion of primary biodiversity data remains difficult for the broader scientific and environmental community. The digitization of foreign collectors’ botanical collections of around 60,000 specimens from the Korean Peninsula before World War II is ongoing. In this paper, we aim to fill this gap by developing the first comprehensive, open-access database of biodiversity records for the Korean Peninsula. This paper provides a quantitative and general description of the specimens that Urbain Jean Faurie, Emile Joseph Taquet, and Ernest Henry Wilson kept in several herbaria.

An open-access database of biodiversity records provides a simple guide to georeferencing historical collections. The first dataset described E. H. Wilson’s collection of woody plants in the Korean Peninsula preserved at the Harvard University Herbaria (A). This includes 1,087 records collected from 1917 to 1918. The other collections contained specimens by E. J. Taquet (4,727 specimens from Quelpaert, 1907–1914) and U. J. Faurie (3,659 specimens from North Korea and Quelpaert, 1901, 1906, and 1907). For each specimen, we recorded the species name, locality indication, collection date, collector, ecology, and revision label. This dataset contained more than 9,400 specimens, with 22% of vascular plants from North Korea and 66% from Quelpaert (Jeju) island. In these collections, we included some images that correspond to the specimens in this dataset.
Molecular diagnostic based on 18S rDNA and supplemental taxonomic data of the cnidarian coelozoic Ceratomyxa (Cnidaria, Myxosporea) and comments on the intraspecific morphological variation
Authors: Sousa Fabricio B. , Milanin Tiago , Morandini André C. , Espinoza Luis L. , Flores-Gonzales Anai , Gomes Ana L.S. , Matoso Daniele A. , Mathews Patrick D.
Published: June 2021

Ceratomyxa amazonensis is a cnidarian myxosporean originally described with strongly arcuate crescent-shaped myxospores, absence of vegetative stages and infecting Symphysodon discus, an important Amazonian ornamental fish in the aquarium industry. As part of a long-term investigation concerning myxosporeans that infect discus fish Symphysodon spp. from different rivers of the Amazon Basin, thirty specimens of S. discus collected from Unini River were examined. Plasmodial vegetative stages therefrom were found freely floating in the bile of gall bladders from eighteen fish. Mature myxospores were slightly crescent-shaped, measuring 4.72 ± 0.1 (4.52–4.81) μm in length, 24.2 ± 0.4 (23.9–25.3) μm in thickness with polar capsules 2.31 ± 0.1 (2.29–2.33) μm in length and 2.15 ± 0.1 (2.13–2.17) μm in width. Strong morphological differences were observed between the newly isolated myxospores obtained and the previously described C. amazonensis; however, molecular assessment, based on 18S rDNA, revealed a high similarity (99.91%), with only a single nucleotide base change. This study provides new data, expanding the original description of the species with a discussion on differences in myxospore-morphology in the context of intraspecific morphological plasticity.
Mony, tiers pesant, tiers absent…
Authors: Goldbeter-Merinfeld Édith
Published: June 2021

Le texte reprend le chemin parcouru avec Mony Elkaïm et les apports de ce dernier dans la construction du modèle du Tiers Pesant.
L’organisation spatiale et économique des monastères de l’Athos à l’époque ottomane. Entre économie spirituelle et économie matérielle. Le cas du monastère d’Iviron (XVII e -premier XIX e siècle)
Authors: Dépret Isabelle
Published: June 2021

Le mont Athos est souvent présenté comme un espace coupé du temps et du monde « profane », où des hommes, organisés en autarcie, se consacrent à Dieu. Les archives publiées des monastères athonites tendent à nuancer cette image, soulignant au contraire les liens spirituels, sociaux mais aussi économiques maintenus par les monastères au-delà de la Sainte Montagne depuis le xi e  siècle. Dans cette contribution, nous cherchons à mieux cerner l’organisation spatiale et économique de ces monastères à l’époque moderne. Pour examiner cette question, nous nous appuyons sur le fonds d’archives roumaines du monastère d’Iviron, documents couvrant la période post-byzantine ( xv e -début du xx e  siècles) publiés par des chercheurs roumains associés au Fonds de la recherche scientifique grecque. À travers ces documents et en mettant l’accent sur les liens économiques entre le monastère-mère et certaines de ses metochia (dépendances), nous nous interrogeons d’abord sur les articulations entre économie matérielle et économie symbolique et leurs possibles implications en termes d’accumulation de richesses. Nous nous intéressons ensuite aux acteurs et aux fondements d’une économie monastique structurée en réseaux transterritoriaux, pour nous demander, finalement, si la règle idiorythmique, adoptée à Iviron à l’époque ottomane, a pu accompagner des logiques évolutives : économie de subsistance, économie de rente, système de marché.
Comment réparer la démocratie américaine ?
Authors: Nardon Laurence
Published: June 2021

La fin de la présidence Trump a témoigné à la fois de la force des institutions et de leur fragilité. Le jeu politique américain est miné par au moins trois éléments : le poids de l’argent dans le processus électoral ; l’hystérisation du débat sur les divers médias ; le dérèglement du système électoral : inégalité du poids des votes, multiplication des entraves au vote lui-même. Les démocrates souhaitent réformer le système mais il n’est pas sûr qu’ils en aient les moyens institutionnels.
Work-Related Stress and Anxiety Among Frontline Nurses During the COVID-19 Pandemic: A Cross-Sectional Study
Authors: D'emeh Waddah Mohammad , Yacoub Mohammed Ibrahim , Shahwan Batool Sama'an
Published: June 2021

The coronavirus disease 2019 (COVID-19) pandemic has strained the health system worldwide. Nurses caring for patients with COVID-19 reported experiencing significant work-related stress and anxiety. The current online descriptive cross-sectional correlational study aimed to investigate work-related stress and anxiety among nurses caring for patients with COVID-19. Data were collected from 240 nurses using the Stress Overload Scale and Self-Rated Anxiety Scale. Average stress and anxiety scores were 34.96 (
SD
= 5.85) and 52.8 (
SD
= 5.48), respectively. Statistically significant differences were found in mean stress overload and anxiety scores based on gender, professional title, average working hours per week, working area, and presence of fear of being infected with COVID-19. These findings suggest the need to promote well-being in nurses and assist nurses and other health care workers experiencing mental and psychological health problems in the context of the COVID-19 pandemic. [
Journal of Psychosocial Nursing and Mental Health Services, 59
(8), 31–42.]
The Relationship Between Nomophobia and Anxiety Levels in Healthy Young Individuals
Authors: Güneş Nurcan Akbaş , Özdemir Çağla
Published: June 2021

The current study was performed to determine whether there is a relationship between nomophobia (i.e., fear of being without a mobile phone or disconnected from mobile phone communication) levels and anxiety among healthy young individuals and whether nomophobia affects work or academic life. Three hundred sixty young individuals with no health problems were included in the study. The Nomophobia Questionnaire (NMP-Q) and Beck Anxiety Inventory (BAI) were used to measure participants' nomophobia levels. There was a statistically significant relationship between NMP-Q and BAI scores in the male group. As NMP-Q scores increased, BAI scores also increased. However, we could not find such a relationship in the female group. We have shown that individuals who do not have their mobile phones with them experience anxiety that affects their work and/or academic life. Efforts should be made to raise awareness of nomophobia, which concerns not only individuals but society as a whole. [
Journal of Psychosocial Nursing and Mental Health Services, 59
(8), 23–30.]
Caja adiabática diseñada para minimizar el puente térmico de un sistema termoeléctrico
Authors: Martín-Gómez César , Del Valle de Lersundi Kattalin , Zuazua Ros Amaia , Vidaurre-Arbizu Marina , Sacristán-Fernández José Antonio , Ibañez-Puy María
Published: June 2021

Los autores del artículo trabajan en la integración de la termoelectricidad en fachadas desde el año 2009. El objeto de este artículo es revisar las posibilidades que esta tecnología ofrece para su incorporación como sistema de climatización de edificios, centrándose en la descripción y análisis del comportamiento del último prototipo realizado dentro de un proyecto de investigación. Para ello, se describen los criterios de diseño y los componentes necesarios para su montaje, aspectos en los que ha tenido especial importancia la reducción del puente térmico respecto a prototipos anteriores. Se explica la metodología experimental seguida, los ensayos realizados, y se analizan críticamente los resultados. Las conclusiones plantean mejoras y recomendaciones para implementar en futuros desarrollos.
BIOACTIVE DEVICES AS SELF-SUFFICIENT SYSTEMS FOR ENERGY PRODUCTION IN ARCHITECTURE
Authors: Abdallah Yomna K. , Estevez Alberto T.
Published: June 2021

Using bioenergy systems in architecture provides energy by means of negative emissions technologies (NETs). It plays an important role in stabilizing CO2 emissions at low levels. This depends on options of low life cycle emissions (for instance, a sustainable use of biomass residues), and on outcomes that are site-specific and rely on efficient integrated systems that convert biomass into bioenergy. The objective of this study is to develop self-sufficient systems that generate bioelectricity and offer safety, electricity generation efficiency, cost-effectiveness, waste treatment, integration in domestic use, ease of use, reproducibility and availability. The study also intends to elaborate a general design method of embedding and utilizing microorganisms into architectural elements to achieve design ecology, introducing a multidisciplinary research application through a design theory aspect. The study is based on previous experimental work conducted by the authors. Microbial fuel cell technology was applied to exploit the natural potential of a fungal strain that was identified and optimized to be implemented in microbial fuel cells (MFCs) to generate electricity. The outcomes were included in the self-sufficient cluster design that meets the aforementioned conditions. The novelty of this study is the direct use of a bioreactor of MFCs in a design application for bioelectricity production. It aims to reduce the currently high global CO2 emissions that come from the energy supply sector (47%) and from the building sector (3%), as well as to eliminate the need for large-scale infrastructure intervention. This self-sufficient bio-electricity cluster therefore outweighs other abiotic renewable energy resources such as solar energy or wind power.
L’autonomie de l’élève et ses supports pédagogiques
Authors: Durler Héloïse
Published: June 2021

Cette contribution se base sur les résultats d’une enquête ethnographique sur les pratiques pédagogiques visant à favoriser l’autonomie des élèves à l’école primaire. Elle aborde les spécificités des outils pédagogiques utilisés dans les classes observées, les activités intellectuelles qu’ils exigent et les dispositions qu’ils sollicitent. Elle traite de la pluralité des usages effectifs de ces outils par les élèves, en considérant en particulier les usages considérés comme « déviants » par les enseignants. Les catégories de déviance sont alors analysées comme autant d’indices de l’existence de compétences prérequises par les outils, qui, parce qu’elles ne sont pas explicitement objectivées et transmises, contribuent à la constitution d’inégalités sociales dans les premiers degrés de la scolarité.
Raconter le travail scolaire. Effets cognitifs et sociaux de la tenue du carnet de bord de Travaux Personnels Encadrés
Authors: Vaquero Stéphane
Published: June 2021

Tous les élèves de première générale tiennent, dans le cadre des Travaux Personnels Encadrés (TPE), un carnet de bord qui a pour fonction de les guider dans leur travail de recherche. Il rend compte, parfois de manière artificielle et reconstruite, de la démarche de recherche des élèves. Les enseignants, eux, y attachent plus ou moins d’importance selon les filières et les disciplines. Si ces différents usages du carnet de bord donnent lieu à des effets de socialisation cognitive propres aux différentes filières (ES, L ou S), ils conduisent également les enseignants à apprécier des dispositions scripturales à parler de soi, à porter un regard distancié et structuré sur sa propre activité d’apprentissage scolaire en lien avec les attendus implicites des filières concernées. Qualités jugées personnelles, substantielles par les enseignants, et qui les poussent à orienter les élèves vers des activités plus ou moins valorisées scolairement. L’analyse des carnets de bord de TPE fournit un éclairage sur la manière dont les enseignements libres et différenciés peuvent conduire à des effets de domination scolaire (et sociale).
Risques d’inégalités liés à certaines caractéristiques des manuels contemporains de langues modernes en Belgique francophone
Authors: Simons Germain , Delbrassine Daniel , Hoof Florence Van
Published: June 2021

Le manuel est un des supports essentiels du cours de langues en Belgique francophone, du moins aux niveaux élémentaire et intermédiaire. Les manuels contemporains se caractérisent par l’adoption de l’approche communicative articulée autour des quatre macro-compétences langagières. Certains manuels, plus récents, adoptent l’approche actionnelle recommandée par le Cadre Européen Commun de Référence pour les Langues (CECRL) qui est basée, entre autres, sur la réalisation de tâches. Si ces manuels possèdent de nombreuses qualités, dont la richesse des inputs langagiers et la variété des activités, ils présentent aussi certaines caractéristiques qui peuvent conduire à des inégalités dans l’apprentissage. Dans cet article, trois manuels (allemand, anglais, espagnol) sont examinés à l’aune de cette problématique des risques d’inégalités. Les premiers éléments d’analyse permettent d’isoler des caractéristiques communes à ces trois manuels contemporains : la langue de rédaction, la longueur et la densité des unités, leur nature composite et fragmentée, l’approche inductive et « spiralaire » de la présentation des nouvelles structures grammaticales, le manque fréquent d’exercices d’application ouverts précédant la tâche finale, quand cette dernière existe. L’enseignant peut réduire les risques d’inégalités d’apprentissage liés à certaines caractéristiques de ces manuels contemporains par l’usage qu’il en fait, en classe, avec ses élèves. Cette démarche présuppose que l’enseignant ait conscience des faiblesses de ces supports et des dérives qu’ils peuvent engendrer.
Comparative antimicrobial efficacy of oregano oil, chlorhexidine, and sodium hypochlorite against Enterococcus faecalis
Authors: Teja Kavalipurapu Venkata , Janani Krishnamachari , Kaligotla Vasundhara Apoorva , Harini Krishnamachari
Published: June 2021

Objective:

The purpose of this study was to evaluate the comparative antibacterial efficacy of 0.2% oregano oil, 2% chlorhexidine (CHX), and 3% sodium hypochlorite (NaOCl) in disinfection of dentin tubules contaminated with Enterococcus faecalis.

Materials and Method:

One hundred and twenty human extracted anterior teeth were infected with E. faecalis for 21 days. They were assigned into three groups (n = 40) – Group 1: 3% NaOCl, Group 2: 2% CHX, and Group 3: 0.2% oregano oil. Disinfection protocol was followed using 31-gauge side-vented needle. After chemomechanical preparation, the apical 5 mm of the roots was removed frozen in liquid nitrogen and pulverized to expose E. faecalis in dentinal tubules. The number of colony-forming units of E. faecalis per mg dentin was determined. The data were analyzed statistically.

Results:

Zone of inhibition of oregano oil was found to be 15 mm, and the values were significant in Group III (P < 0.05) as compared to the other groups assessed.

Conclusion:

Within the study's limitation, 0.2% oregano oil showed better disinfection property against E. faecalis among tested irrigants. Therefore, it can be used as an effective alternative root canal irrigant.
Sealer penetration in the dentinal tubules
Authors: Khullar Sanjana , Aggarwal Anurag , Chhina Harleen , Kaur Tamanpreet , Sharma Mehak , Bala Deepak
Published: June 2021

Context:

The penetration of sealer into dentinal tubules is considered to be a desirable feature as sealers prevent the colonization of residual bacteria into the dentinal tubules because of their antibacterial properties.

Aims:

This study aims to compare the depth of penetration of ADSEAL, Sealapex, and BioRoot RCS into the dentinal tubules in the apical area using confocal laser scanning microscope (CLSM).

Settings and Design:

Quality improvement projects.

Materials and Method:

After decoronating 120 extracted single rooted teeth, preparation was done using ProTaper universal rotary files until F3. Then, the samples were divided into four groups (n = 40) and obturated by the following endodontic sealers: Group A-ADSEAL, Group B-Sealapex and Group C-BioRoot RCS along with F3 gutta-percha cone. Before root canal filling, the sealers were mixed with 0.1% Rhodamine B dye. All the samples were sectioned at 3 mm and 5 mm from apex and visualized under CLSM.

Statistical Analysis Used:

Data were analyzed using two-way ANOVA and Tukey post hoc tests.

Results:

BioRoot RCS has shown significantly higher depth of penetration than resin based sealer and calcium hydroxide based sealer (α < 0.05).

Conclusion:

At all root regions, BioRoot RCS exhibited more tubular penetration whereas ADSEAL exhibited less penetration.
Penetration depth of sodium hypochlorite into dentinal tubules influenced by different agitation systems
Authors: Karad Keyur M. , Kolhe Swapnil J. , Gulve Meenal N. , Aher Gayatri B. , Kolhe Priyanka S.
Published: June 2021

Objectives:

To compare the effect of different agitation systems on the penetration depth of sodium hypochlorite into dentinal tubules: An in vitro study.

Background:

Studies have found the presence of bacteria in dentinal tubule up to 200 μ. Passive irrigation using NaOCl may not adequately eliminate these bacteria. Hence, it is mandatory to use agitation systems during irrigation and disinfection of root canal.

Materials and Method:

Eighty extracted teeth with single canals were used. Standardized access cavity preparation and working length determination were done using visual method. All canals were instrumented till #30, 6%. All samples were immersed in crystal violet dye. The samples were randomly divided into four groups depending on the type of agitation system used (n = 20): Group A: manual dynamic agitation (MDA), Group B: EndoActivator (EA), Group C: EndoUltra (EU), and Group D: EndoVac (EV). Each agitation system was used with 5 ml of 5.25% NaOCl, and each tooth was sectioned into two halves. These sections were analyzed under a stereomicroscope, and NaOCl penetration depth was measured at coronal, middle, and apical third levels.

Statistical Analysis Used:

Statistical analysis was performed using one-way ANOVA and Tukey's post hoc test.

Results:

At all levels of examination, EU significantly showed a maximum penetration depth of NaOCl throughout the length of root canal, followed by EA, MDA, and EV.

Conclusion:

Ultrasonic agitation using EU is the most effective method to disinfect the dentinal tubules throughout the length of root canal than EA and MDA. EV showed the least penetration depth of sodium hypochlorite.
Comparative evaluation of effect of three different crown to implant ratio on marginal bone loss
Authors: Agarwaal Tejhas Gobiind , Jagtap Amit K , Bulbule Nilesh S , Jathar Vaibhav Popat
Published: June 2021

Partial rehabilitation in the posterior edentulous region remains a challenge due to the anatomical condition present in the area. Excessive pneumatization of the maxillary sinus and accentuated bone crest resorption following teeth extraction cause bone atrophy and may lead to impossibility of inserting standard implants. Constant efforts are aiming at the reduction of the invasiveness of implant surgery. This has led to increase the use of implants with shorter length in the posterior maxilla and mandible region which reduces the need for additional surgical procedure causing less morbidity of the site and faster healing of the region. Does crown to implant ratio has an effect on the marginal bone loss (MBL) around implants in the posterior maxillary and mandibular region? A systematic search was conducted on two databases for the studies published from January 1, 2006, to July 31, 2018. Cross-references were checked. Hand searching was done in the library. Studies were included if they were done among healthy, nonhospitalized individual, and compared for the crown-to-implant ratio and MBL. A total of 143 articles were found through search. Thirteen articles remained after removing duplicates, reading the full text and reviewing abstracts. Thirteen articles were included for the data extraction. Crown-to-implant ratio has no role in the crestal bone loss, but other factors need to be evaluated for its role along with crown-to-implant ratio that can cause the MBL.
Use of natural mucilage extracted from the Stenocereus griseus (Cardón Guajiro) plant as a coagulant in the treatment of domestic wastewater
Authors: Dunoyer Arnulfo Antonio Tarón , Cuello Rafael Emilio González , Castillo Fredy Colpas
Published: June 2021

Coagulants can be extracted from vegetal material and applied in the treatment of wastewater. These coagulants are derived from seeds, leaves, bark, roots and fruits. This study focuses on the use of the mucilaginous extract of Stenocereus griseus (known as Cardón Guajiro) for removal of biochemical oxygen demand (BOD5), chemical oxygen demand (COD), total solids, turbidity and color in domestic wastewater from a pumping station in the city of Cartagena (Colombia). The optimal dose of S. griseus extract was determined by a pitcher test employing an E&Q F6-300 digital flocculator. All physicochemical tests were carried out following the specifications of the standard methods for wastewater (APHA). When 1400 mgL-1 of natural coagulants were used in the sewage treatment, the turbidity obtained was 29.57 TNU, representing removal of 67.24%, considering the initial turbidity. This parameter decreases until 68.61 PCU, for a 72.12% removal at the same coagulant dosage regarding the color. It must be noted that significant statistical differences were found between all tested doses of the coagulant. The mucilaginous extract of S. griseus exhibited useful properties in the primary treatment of domestic wastewater.
Effect of generator (exhaust) fumes on the growth and development of Lycopersicum esculentus (tomato)
Authors: Chukwu M.N. , Adams E.A.
Published: June 2021

The effects of generator (Exhaust) Fumes on the growth and development of Lycopersicum esculentus were evaluated in this study. It involved sowing ten seeds of L. esculentus in plastic pots. These were allowed to germinate and stabilize for two weeks after which they were exposed to 0.75KVA generator fumes 8 hours a day at the distance of 3 m, 6 m, and 9 m respectively from the source while the control was retained at the planting site. Results were analyzed using analysis of variance (ANOVA) and Pearson’s correlation coefficient at 5% level of significance. Although the mean dry weights of the plants increased as the distance of the plants from the source of pollution increased, only the 3 m treatment led to significant reduction of the growth rate of the seedlings (p < 0.05). The heights of  the plants were adversely affected by the fume emission especially at the distance of 3 m away from the source (p < 0.05). The leaf number per plant increased as the distance of the plants from the source of pollution increased with significant effects on plant from distance of 3 m and 6 m at the later stage of their growth (p < 0.05). Significant differences (p < 0.05) were observed among the plants in the different treatments for the different parameters measured.. Farmers should locate their farmlands at a distance of at least 50 km away from the factories to minimize effect of air pollutants and the government should also place a ban on importation of old generators.Keywords: generator fume, emission, Lycopersicum esculentus, growth, germination
Comparison of gas dehydration methods based on energy consumption
Authors: Kinigoma B.S. , Ani G.O.
Published: June 2021

This study compares three conventional methods of natural gas (Associated Natural Gas) dehydration to carry out the dehydration process and suitability of use on the basis of energy requirement. These methods are Triethylene Glycol (TEG) absorption, solid desiccant adsorption and condensation. Analyses performed were based on dehydration of Natural Gas saturated with 103Nm3/h water content at a temperature range of -10O C to 30oC, and gas pressure variation between 7MPa and 20MPa. This analysis and study showed that energy required for all three processes decreases with increase in pressure, but condensation dehydration requires the least energy at high pressures. Results obtained shows that, both at high pressures and low pressures, TEG dehydration is most suitable and in cases where very low Tdew is required, solid desiccant adsorption is preferable. In conclusion, the findings in this paper will aid natural gas process design engineers to decide on what method to use base  on energy consumption and on the physical and chemical properties of the final products.Keywords: Dehydration, Absorption, Desiccant, Condensation, Triethylene Glycol (TEG)
Evaluation of antibiotic resistance patterns and heavy metals tolerance of some bacteria isolated from contaminated soils and sediments from Warri, Delta State, Nigeria
Authors: Eghomwanre A.F. , Obayagbona N.O. , Osarenotor O , Enagbonma B.J.
Published: June 2021

This work investigated the antibiotic resistance patterns and heavy metals such as Lead (Pb), Zinc (Zn), Cadmium (Cd) and iron (Fe) tolerance of selected bacteria isolated from contaminated soils and sediments around Warri area of Delta State. The heterotrophic bacterial counts for the sampled soils and sediments ranged from 1.7×105 cfu/g to 5.7×105cfu/g for Ubeji river sediments, 1.0×105 cfu/g to 9.0×105cfu/g for spare parts dumpsite and 1.2×104cfu/g to 9.0×104 cfu/g for Ifie depot sites respectively. The characterized bacterial isolates included; Klebsiella sp, Bacillus subtilis, Streptococcus sp., Escherichia coli, Klebsiella mobilis and Staphylococcus sp., Micrococcus sp. and Pseudomonas aeroginosa. Bacterial isolates showed multiple drug resistance and the most resistant isolates were S. aureus, E. coli and P. aeroginosa while K. mobilis exhibited the least resistance. The tolerance of the bacterial isolates exposed to varying concentrations of Pb2+, Cd2+, Fe2+, and Zn2+was ascertained using agar diffusion method. All the bacterial isolates exhibited varying degree of susceptibility at different concentrations of Pb and Cd while the organisms displayed abundant and moderate growth in the presence of Fe and Zn even at higher concentrations. The ability of these bacteria to resist antibiotics and heavy metal tolerance could present serious danger to the environment as the resistance genes may be transferred to surrounding wild type microbial cells.Keywords: Heavy metals, Antibiotics resistance, tolerance, Ubeji river sediments, Warri
Kunst des Wartens – Zeitempfinden in Martin Mosebachs Roman Mogador (2016)
Authors: Sowa Agnieszka
Published: June 2021

Sztuka czekania – percepcja czasu w powieści Mogador (2016) Martina Mosebacha

Powieść Martina Mosebacha Mogador konfrontuje dwie kultury. Bohater – młody, odnoszący sukcesy pracownik banku z Niemiec – musi spędzić kilka tygodni w Maroku wśród jego mieszkańców. Musi zmierzyć się z obcymi zwyczajami i innym rytmem życia ludzi, którzy wydają się mieć znacznie więcej czasu i nie muszą poddawać się jego presji. W artykule skupiono się na przedstawieniach percepcji czasu (np. w czasie wolnym, w trakcie posiłków czy oczekiwania), która wydaje się jedną z najważniejszych różnic pomiędzy kulturą europejską a marokańską. Artykuł ma na celu opisanie ludzkiej tęsknoty za godnym przeżywaniem czasu, za tzw. slow life, która wydaje się pragnieniem ukrytym pod niepokojem i szybkością współczesnego świata.

Art of Waiting – Perception of Time in Martin Mosebach’s Novel Mogador (2016)

Martin Mosebach’s novel Mogador confronts two cultures; the protagonist, a young, successful, German bank employee must spend some weeks in Morocco among the locals. He has to deal with foreign customs and another rhythm of life among people who seem to have much more time and don’t have to subject themselves to the pressure of the clock. The article focuses on the depictions of time perception (e.g. during leisure time, meals, waiting, etc.), which seems to be one of the most important differences between them. The article aims to describe the human longing for dignified handling of time, for slow life, which seems to be a yearning hidden under the anxiety and speed of the modern world.
‘Art is different from life’: Doctrine and agency in Thokozile Philda Majozi’s insights and imagery
Authors: Hobbs Philippa
Published: June 2021

Established in apartheid South Africa, the tapestry-weaving venture at the Evangelical
Lutheran Church Art and Craft Centre, Rorke’s Drift, was situated in a complex mission
environment, on the junction between evangelised and unevangelised isiZulu-speaking
communities. Although local women who worked at this centre in the 1960s and early 1970s were trained in creative strategies by Swedish artists, their lives were constrained by missionary strictures, inherited customs and apartheid laws. Little has been written on the tapestries made by these marginalised women, whose experiences were discounted in the socio-political milieu. Yet even as they were subordinated by political and social hierarchies, some found ways to assert their individualities. One of the most prolific was Thokozile Philda Majozi. As this study demonstrates, her woven iconographies, as well as her personal insights on those of others, provide a lens through which local Lutheran agendas and prejudicial social practices may be read. Some works anticipate the mission’s eventual change of heart on inherited customs and African-initiated churches. Majozi’s discussion also reveals how weavers often ignored Lutheran restrictions in the interests of artistic experience, despite the systems of control that defined their lives. Yet Christian weavers such as Majozi also
complicated their representations of mission life, deploying images of un-evangelised women that articulated their own ambivalence towards them.
Tokat Ekolojik Şartlarında Bazı Tek Yıllık Çim (Lolium multiflorum Lam.) Çeşitlerinin Adaptasyonu
Authors: Ayşe Nida KURT  , Başaran Uğur
Published: June 2021

Bu çalışma bazı tek yıllık çim (Lolium multiflorum Lam.) çeşitlerinin Tokat ekolojik şartlarına uyumunu belirlemek amacıyla 2018-2019 yetiştirme sezonunda yürütülmüştür. Çalışmada 11 adet tek yıllık çim çeşidi (Barmultra II, Barspectra II, Bartigra, Baqueano, Caramba, Devis 2017, Pollanum, Trinova, Vallivert, Venüs, Vespolini 2016) kullanılmıştır. Deneme Tokat Merkeze bağlı Bakışlı Köyünde, çiftçi koşullarında, tesadüf blokları deneme desenine göre 3 tekrarlı olarak yürütülmüştür. Ekim işlemi 2018 sonbaharında 20 cm sıra aralığında ve her çeşitten 3 kg da-1 olacak şekilde elle yapılmıştır. Hasat bitkilerin başaklanma başlangıcında olmak üzere 3 defa yapılmıştır. Çalışma sonucunda, incelenen özellikler (başaklanma gün sayısı (BGS), ana sap uzunluğu (ASU), kuru ot verimi (KOV), ham protein oranı (HPO) ve verimi (HPV) mineral madde, ADF, NDF, sindirilebilir kuru madde oranı (SKMO) ve verimi (SKMV), nispi yem değeri (NYD)) bakımından çeşitler arasında önemli farklılıklar tespit edilmiştir. Bu çalışma Tokat ekolojik koşullarında tek yıllık çimin başarıyla yetiştirilebileceği, verim ve kalitesinin yüksek olduğunu bir vejetasyon süresinde çok sayıda biçilebileceğini göstermiştir. Ayrıca çeşit seçiminin önemli olduğu, bu bakımdan Caramba, Venüs, Vallivert çeşitlerinin bölgenin koşullarına daha iyi uyum sağladığı belirlenmiştir.
Determination of Essential Oil Composition of Naturally Growing Heracleum platytaenium L. Plant in Bolu Ecological Conditions
Authors: Abdurrahim YILMAZ  , Vahdettin ÇİFTÇİ
Published: June 2021

Heracleum platytaenium Boiss. (Öğrekotu) is a plant depend on the Apiaceae family, with intense aromatic content and known for its use in traditional medicine. This plant, which is one of the endemic plants of Turkey, is perennial and monocarpic. In this study, the essential oil of the Heracleum platytaenium Boiss., which grows naturally in the northern parts of Bolu province, was obtained by the hidro-distillation method in the Clevenger device and the essential oil components were investigated in the GC-MS device. As a result of the study, the essential oil ratio was determined as 1.4%. Octyl hexanoate (8.76%), 5-Octen-1-ol (7.04%), n-Octyl Caprylate (5.42%), and Beta-Eudesmol (5.01%) were determined as the main components.  In this study, a total of 36 components (81.69%) were detected in the GC-MS device.
Siirt Koşullarında İkinci Ürün Olarak Kornişon Yetiştiriciliği
Authors: Zeki KARİPÇİN
Published: June 2021

İkinci ürün, mevcut üretim miktarını arttırmanın bir başka yoludur. İkinci ürün ile üreticinin hem zamanının hem de üretim alanının daha randımanlı kullanımını sağlanmaktadır. Kornişon, turşuluk olarak kullanılan endüstriyel bir sebzedir ve ikinci ürün olarak yetiştiriciliği bu nedenle daha önemli olmaktadır. Bu çalışmada, yüksek sıcaklıklara sahip Siirt koşullarının ikinci ürün kornişon yetiştiriciliğine uygunluğu araştırılmıştır. Vertina F1, Sertel F1 ve Mozaik F1 kornişon çeşitlerinin bitkisel materyal olarak kullanıldığı deneme, üretici koşullarında ve dört tekerrürlü olarak gerçekleştirilmiştir. Buğday hasadından sonra (17 Haziran) direkt tohum ekimi ile gerçekleştirilen araştırmada; birinci (3-6 cm meyve boyu), ikinci (6-9 cm meyve boyu) ve üçüncü kalite (9-12 cm meyve boyu) verim ile toplam verim (tüm meyve boylarının dâhil olduğu) gözlemleri alınmıştır. Tüm incelenen gözlemlerde Vertina F1 çeşidinin en yüksek değerlere sahip çeşit olduğu, Sertel F1 çeşidinin ikinci, Mozaik F1 çeşidinin ise üçüncü ve son sırada yer aldığı belirlenmiştir. Siirt koşullarının ikinci ürün ve yüksek sıcaklıkları seven kabakgiller için uygun olduğu tespit edilmiştir.
Türkiye'de Yıllara Göre Mısır (Zea mays L.) Ekim Alanları İle Verimin Mısır Üretimine Olan Etkileri
Authors: TURHAL Kutalmış
Published: June 2021

Dünya nüfusunu doyuran altı tahıldan biri olan mısır, ekim alanı olarak Dünyada buğdaydan sonra gelen 2. tahıldır. Çok yönlü kullanım alanı, adaptasyon kabiliyeti ve verimliliği ile Dünya’da en fazla üretilen tahıl olmuştur. Dünya'da ve Türkiye’de yetiştirilen mısır çeşitleri at dişi mısır, sert mısır, cin mısır, şeker mısır, kavuzlu mısır, unlu mısır ve mumlu mısır olmak üzere 7 çeşittir. Bunlardan en çok yetiştirilenler ise at dişi mısır ve sert mısırdır. Ülkemizde daha çok hayvan yemi olarak kullanılan at dişi mısır, tane olarak veya silaj şeklinde kullanılmaktadır. 1961 yılından beri mısır ekim alanlarının çok değişmediği ama hibrit çeşitlerin kullanılmasıyla verim artışında belirgin artışlar olduğu bu çalışma ile belirlenmiştir. Mısırdaki verim artışı da mısır üretimini etkilemiştir. Bu çalışmada 1961-2020 yılları arasında mısır ekim alanlarının, mısır üretimi üzerinde bir etkisi olmadığı ama, mısır veriminin mısır üretime etkisinin ise 5.86 milyon ton olduğu görülmüştür. 2001-2020 yılları arasında ise mısır ekim alanının ve verimin mısır üretimine etkilerinin sırasıyla 0.90 ve 2.39 milyon ton olduğu görülmektedir. Bu çalışmada, bu güne gelinirken mısır üretiminde kat edilen aşamalar analiz edilerek geleceğin planlanmasında katkıda bulunmak amaçlanmıştır.
Organik ve Konvansiyonel Koşullarında Bazı Makarnalık Buğday (Triticum durum L.) Genotiplerinin Performanslarının Değerlendirilmesi
Authors: Remzi ÖZKAN  , Cuma AKINCI
Published: June 2021

Organik koşullar altında yüksek tane verimi elde etmenin önündeki en büyük engel besin element yetersizliği ve yabancı ot yoğunluğudur. Buğdayda uzun bitki boyuna, erken çiçeklenmeye ve olgunlaşmaya sahip bitkilerin yabancı otlar ile daha iyi rekabet edebileceği ve organik koşullarda daha iyi verim verebileceği öngörülmektedir. Çalışma, 2019-2020 bitki yetiştirme sezonunda Dicle Üniversitesi Ziraat Fakültesi Tarla Bitkileri Bölümü Araştırma ve Uygulama Alanı’nda yağışa dayalı koşullarda yürütülmüştür. Yerel çeşitlerden oluşan 29 makarnalık buğday genotipi ve 3 kontrol çeşidi (Sena, Svevo ve Eyyubi) materyal olarak kullanılmıştır. Çalışma, 2 farklı deneme halinde (organik ve konvansiyonel) augmented deneme desenine göre 3 blok (her biri 10 sıradan oluşan) şeklinde kurulmuştur. Çalışmada, organik koşullar altında yerel genotiplerin performanslarını konvansiyonel ortamla kıyaslayarak değerlendirmek ve organik buğday ıslahı için uygun seleksiyon parametrelerini tespit edilmesi amaçlanmıştır. Çalışmada bazı fizyolojik, fenolojik, morfolojik, verim ve kalite özellikleri incelenmiştir. Elde edilen sonuçlara göre organik koşullar altında erkenci genotipler daha yüksek tane verimi potansiyeline sahip olmuşlardır. Ayrıca NDVI ve LAI değerlerinin tane verimi üzerine etkisi önemli bulunmuştur. Organik koşullarda tane verimi bakımından minimum düşüş gösteren DYM-19, DYM-17, YM-12, UYM-5 ve DYM-16 genotipleri ve her iki tarım sisteminde de en yüksek tane verimini veren Atkı-2 çeşidi organik koşullarına uygun çeşit geliştirme çalışmalarında ebeveyn olarak kullanılabilecekleri belirlenmiştir.
Node similarity as a basic principle behind connectivity in complex networks
Authors: Scholz Matthias
Published: June 2021

How are people linked in a highly connected society? Since in many networks a
power-law (scale-free) node-degree distribution can be observed, power-law
might be seen as a universal characteristics of networks. But this study of
communication in the Flickr social online network reveals that power-law
node-degree distributions are restricted to only sparsely connected networks.
More densely connected networks, by contrast, show an increasing divergence
from power-law. This work shows that this observation is consistent with the
classic idea from social sciences that similarity is the driving factor behind
communication in social networks. The strong relation between communication
strength and node similarity could be confirmed by analyzing the Flickr
network. It also is shown that node similarity as a network formation model can
reproduce the characteristics of different network densities and hence can be
used as a model for describing the topological transition from weakly to
strongly connected societies.
Computer Analysis of Architecture Using Automatic Image Understanding
Authors: Wei Fan , Li Yuan , Shamir Lior
Published: June 2021

In the past few years, computer vision and pattern recognition systems have
been becoming increasingly more powerful, expanding the range of automatic
tasks enabled by machine vision. Here we show that computer analysis of
building images can perform quantitative analysis of architecture, and quantify
similarities between city architectural styles in a quantitative fashion.
Images of buildings from 18 cities and three countries were acquired using
Google StreetView, and were used to train a machine vision system to
automatically identify the location of the imaged building based on the image
visual content. Experimental results show that the automatic computer analysis
can automatically identify the geographical location of the StreetView image.
More importantly, the algorithm was able to group the cities and countries and
provide a phylogeny of the similarities between architectural styles as
captured by StreetView images. These results demonstrate that computer vision
and pattern recognition algorithms can perform the complex cognitive task of
analyzing images of buildings, and can be used to measure and quantify visual
similarities and differences between different styles of architectures. This
experiment provides a new paradigm for studying architecture, based on a
quantitative approach that can enhance the traditional manual observation and
analysis. The source code used for the analysis is open and publicly available.
The Artist Libraries Project in the Labex Les passés dans le présent
Authors: Faizand de Maupeou Félicie , Le Men Ségolène
Published: June 2021

The creation of the Artist Libraries Project was sparked by the observation that artist libraries are still not well known, yet many art historians are interested in this archive for the value it adds to understanding the person behind the artist and his or her creative process. The problem is that these libraries are rarely physically preserved. To remedy this dispersion, we built an online database and a website www.lesbibliothequesdartistes.org that house this valuable source in the form of lists of books and their electronic versions. First data on Monet's library have been made available, and several additional artist libraries from the 19 th and 20 th centuries are on the way for 2019. By gathering all these bibliographical data in a central database, it's possible to explore one library and to compare several. This article explains how we built the database and the website and how the implementation of those IT tools has raised questions about the use of this resource as an archive on the one hand, as well as its value for art history on the other.
ANALISA KINERJA MESIN KAPASITAS 599cc SEPEDA MOTOR TIPE CBU YAMAHA R6 DAN HONDA CBR600F4I BERBAHAN BAKAR PERTAMAX TURBO
Authors: Setiawan Feddy Wanditya
Published: June 2021

Sepeda motor tipe CBU (completely built up) komponennya didatangkan sepenuhnya dari luar negeri. Kelebihannya handling motor yang ringan, power motor besar dan mesin sudah mengadopsi jenis DOHC. Kelemahan yang dimiliki salah satunya adalah mesin yang cepat panas meski sudah menggunakan radiator sebagai sistem pendinginannya. Dalam uji kinerja mesin sepeda motor tipe CBU Yamaha R6 dan Honda CBR600F4I digunakan bahan bakar jenis pertamax turbo dengan nilai oktan oktan 98 agar membuat mesin stabil pada kompresi tinggi. Kinerja motor bensin yang dihasilkan berupa data torsi dan daya menggunakan dynamometer. Cara mengetahui data kinerja motor bensin bisa dengan melakukan pengukuran pada crankshaft, suhu input dan output ruang pembakaran serta suhu lingkungan. Penelitian bertujuan mengetahui data kinerja kedua mesin motor tersebut. Metode eksperimen akan menghasilkan analisa data yang disimpulkan dalam grafik dan tabel. Diperoleh kinerja terbesar mesin motor tipe CBU Yamaha R6 berbahan bakar pertamax turbo yaitu dengan torsi 46,74 Nm, pada 13,630 rpm dan daya sebesar 114,48 Hp, sedangkan untuk mesin motor Honda CBR600F4I berbahan bakar pertamax turbo hanya memiliki torsi sebesar 40,65 Nm, pada 12,600 rpm dan daya 90,81 Hp