bluuebunny/crossref_metadata_2025 huggingface dataset:
Zadovoljstvo korisnika promidžbom i prepoznatljivošću Gradske knjižnice Rijeka
Authors: Pavić Lara , Vrana Radovan
Published: April 2018

U prvom dijelu rada dan je pregled temeljnih pojmova vezanih uz koncepte mar- ketinga i promidžbe u knjižnici. U drugom dijelu rada prikazani su rezultati istraživanja korisnika putem ankete provedene u Gradskoj knjižnici u Rijeci u razdoblju od 11. do 16. srpnja 2016. godine o njihovu zadovoljstvu promidžbom i prepoznatljivošću Knjižnice. U istraživanju je sudjelovao 181 član (što čini 1 % svih upisanih članova u Gradsku knjižnicu Rijeka). Rezultati provedenog istraživanja pokazali su orijentaciju korisnika Gradske knjižnice Rijeka prema mrežnoj stranici Knjižnice putem koje sa- znaju najvažnije detalje o uslugama Knjižnice i njezinu fondu. Korisnici se prilikom saznavanja informacija o Knjižnici također služe i drugim promidžbenim alatima, po- put društvenih mreža na kojima Knjižnica sudjeluje te plakata postavljenih u Knjižnici. Unatoč prisutnosti Gradske knjižnice Rijeka na društvenim mrežama, istraživanje je pokazalo kako mnogi ispitanici još uvijek nisu upoznati s mogućnošću praćenja obavi- jesti o Knjižnici na različitim društvenim mrežama. Istraživanje je također obuhvatilo i neposredan kontakt ispitanika s osobljem Knjižnice, za koje su istaknuli karakteristike ljubaznosti i stručnosti. Konačni je zaključak istraživanja da najveći broj ispitanika smatra kako je Gradska knjižnica Rijeka u potpunosti prepoznatljiva ili djelomično pre- poznatljiva ne samo u gradu u kojemu djeluje već i na internetu. Rezultate istraživanja moguće je upotrijebiti u izradi budućeg marketinškog plana Knjižnice.
Knjižnica – podrška roditeljima u medijskom opismenjavanju i medijskom odgoju djece
Authors: Krpan Keti , Sindik Joško , Bartaković Sanja
Published: April 2018

U suvremenom društvu djeca rastu okružena različitim medijima. Stoga je cilj rada naglasiti važnost medijskog odgoja i medijske pismenosti koje, uz roditelje kao glavne odgojitelje unutar obitelji, trebaju provoditi i dječji knjižničari. Danas djeca od najranije dobi konzumiraju medijske sadržaje, a utjecaj medija na njih ovisi o izboru tih sadržaja. S obzirom na to da djecu medijski odgajaju njihovi roditelji, važan preduvjet medijskog opismenjavanja djece upravo je medijska pismenost roditelja. Roditeljska medijacija najvažnija je u reguliranju utjecaja medija na djecu, a taj je utjecaj značajan čimbenik u formiranju mladog čovjeka. Pod pojmom roditeljske medijacije označava se strategija koju roditelji koriste prilikom medijskog odgajanja i opismenjavanja djece. U ulozi medijskog odgajatelja često se nađe i knjižničar za djecu i mladež, budući da u knjižnici djeca provode svoje slobodno vrijeme koristeći različite medije. Knjižničari za djecu i mladež putem brojnih programa, usmjerenih na sadržajno provođenje slo- bodnog vremena najmlađih knjižničnih korisnika, promiču medijski odgoj i medijsko opismenjavanje. U svakodnevnom radu s djecom dječji knjižničar primjenjuje aktivnu, instruktivnu ili poučnu medijaciju te tako sudjeluje u medijskom opismenjavanju novih naraštaja, kako bi utjecaj medija na njih imao što manje negativnih posljedica uz poja- čane pozitivne učinke.
U traganju za kvalitetom visokoškolske knjižnice – primjer Knjižnice Filozofskog fakulteta Sveučilišta u Rijeci
Authors: Moslavac Aleksandra
Published: April 2018

Cilj. Reakreditacija je postupak vanjskog vrednovanja kvalitete visokog učilišta, nakon kojega se donosi ocjena kvalitete te preporuke za daljnje unapređivanje kvalitete. Kako se u postupku reakreditacije visokoškolsku knjižnicu promatra s aspekta resursa za učenje, cilj je ovog rada ukazati na važnost provođenja istraživanja kojima se vrednuje kvaliteta knjižnične usluge i zadovoljstvo korisnika, što nije obuhvaćeno vredno- vanjem kvalitete knjižnice u postupku reakreditacije.

Pristup. Rad tematizira primjer istraživanja zadovoljstva korisnika knjižničnom uslugom koje je provela Knjižnica Filozofskog fakulteta Sveučilišta u Rijeci. Istraživanje je provedeno od ožujka do lipnja 2016. godine metodom anketiranja na prigodnom uzorku od 248 korisnika Knjižnice.

Rezultati. Rezultati provedenog istraživanja uspoređeni su sa zaključcima Izvješća Stručnog povjerenstva nakon provedene reakreditacije te je uočeno da ne postoji izrazito nezadovoljstvo korisnika stavkama koje su u Izvješću navedene kao nedostaci knjižničnog poslovanja. Dobiveni rezultati predstavljaju značajne smjernice za unapređivanje kvalitete knjižnične usluge do sljedećeg reakreditacijskog vrednovanja.

Originalnost/vrijednost. U radu je analizirano vrednovanje kvalitete visokoškolske knjižnice tijekom procesa reakreditacije visokog učilišta i izvan tog procesa. Nastojalo se ukazati na važnost kontinuiranog provođenja vrednovanja kvalitete visokoškolske knjižnice, kao potvrde značaja knjižnične djelatnosti u sustavu visokog obrazovanja.
Informacijska funkcija knjižnica u turizmu
Authors: Tokić Ksenija , Tokić Ivo
Published: April 2018

Cilj. Cilj je ovoga rada ukazati na doprinos knjižnica, osobito informacijske funkcije, u turizmu te tako pridonijeti istraživanjima u tom području.

Pristup/metodologija/dizajn. U radu se donose rezultati primarnog istraživanja o informacijskoj funkciji knjižnica u hrvatskom turizmu. Istraživanje je provedeno na uzorku od 34 knjižnice, a ispitanici su bili ravnatelji samostalnih knjižnica, odnosno voditelji knjižnica u sastavu. Informacijska uloga knjižnica ispitana je s obzirom na knjiž- nični fond, aktivnosti knjižnica u turizmu i uključivanje knjižnica u turističke događaje.

Rezultati. Rezultati istraživanja pokazali su da je doprinos knjižnica u turizmu značajan, budući da u svojim fondovima sadrže zbirke i literaturu koja pruža informacijsku i teorijsku podršku znanstvenicima, stručnjacima i ostalima koji se bave turističkim istraživanjima. Knjižnice također sadrže literaturu koja služi informiranju turista i orga- niziraju događaje putem kojih korisnici i turisti mogu upoznati lokalnu kulturu.

Ograničenja/implikacije. U ovome je istraživanju informacijska funkcija knjižnica u turizmu ispitana s aspekta knjižnica. Za dobivanje šireg uvida o tom pitanju bilo bi potrebno provesti i istraživanje na korisnicima.

Originalnost. Budući da uloga knjižnica u turizmu nije dovoljno ispitana ni u svijetu ni u Hrvatskoj, ovaj rad predstavlja jedno od rijetkih istraživanja o toj temi kojim se nastoji procijeniti doprinos informacijske funkcije knjižnica u turizmu na temelju empirijskih podataka.
DEVELOPMENT MODEL OF BUILT OPERATE AND TRANSFER (BOT) OVER WAQF LAND PRODUCTIVITY
Authors: Monaya Nova
Published: April 2018

Build, Operate, Transfer (BOT) is an agreement that provides solutions between parties that have common interests but with their respective limitations that require the ability or ability of others to realize mutual benefits, for example one party has a plot of land that can be optimized for the benefit of the business to take advantage of the assets owned but due to limited funds or expertise in the field of asset management owned by inviting third parties to optimize the land to be utilized. From the BOT agreement there are many things that can be done and many advantages from third party communities including landowners, so that the land is not abandoned land or sleeping land. Waqf in the context of positive law as Law No. 41 of 2004 on Waqf, has inherited the rigid, closed, and narrow nature of its movement space permanently. This is due to the excessive concerns of the Naqwa waqf and the people around the land of waqf. Due to the nature of this rigidity, many land waqf which became the land of sleep, especially the manager of education and social activities, whereas land waqf land in a strategic location. This study aims to find a way out of the legal deadlock by harmonizing the law of land waqf with the approach of the law of covenant and the law of civil and land law as a pillar of increasing land productivity waqf. The research method used is a normative juridical approach with secondary legal materials from experts as well as comparative studies abroad that have implemented BOT on waqf land or utilizing objects on land waqf in perspective Islamic Business Law.Keywords : Built Operate Transfer (BOT), Waqf Law, Horizontal Separation Principle
Ampelographic Characterization of Turkish Indigenous Grape Accessions and European Cultivars (Vitis Vinifera L.)
Authors: İşçi Burçak , Altındişli Ahmet
Published: April 2018

A total of 35 grape accessions and 3 reference cultivars were used to investigate the genetic polymorphism and relationships among Turkey and other European grape accessions by ampelographic characterization. Total of 74 ampelographic characteristics were identified for 38 genotypes. Ampelographic data were collected  two vegetation periods. The characteristics of the vines were defined and measured according to OIV descriptors. In this study, three synonym varieties (100% similarity) were identified: 'Cabernet Sauvignon' and 'Cabernet Franch'; standard grape variety 'Merlot' and no.12 genotype (Merlot), and 'Sèmillion' analyzed as a standard grape variety and no. 1 'Sèmillion' genotype. Based on similarity rate of grape varieties, highest similarity ratios were found between 'Yuvarlak Razakı-Siyah Gemre' with 93%, 'Yuvarlak Razakı-Siyah Gemre' and 'Şika' with 91%, 'Moiseylative-Hafızali' with 90% and 'Kırmızı Şam-Pembe Gemre' genotypes with 89%. In principal component analyses graph, 'Müşküle', 'Buca Razakı', 'Moiseylative', 'Kırmızı Şam', 'Cardinal', 'Yuvarlak Razakı', 'Hafızali', 'Siyah Gemre' and 'Şika' were grouped together.
Effect of Different Thawing Techniques on Color of Black Sea Trout (Salmo labrax Pallas, 1814) Fillets
Authors: ÇANKIRILIGİL Ekrem Cem , ALP ERBAY Esen
Published: April 2018

In this research, effect of different thawing techniques on the meat color of Black Sea trout (Salmo labrax) was evaluated. The commonly using fish thawing methods by the consumers were applied to frozen fish fillets and the color losses were determined. For this purpose, 70 individuals of Black Sea trout were used. First of all, trouts were washed, cleaned and filleted before the freezing stage. In the latter, fillets were kept at -20 ºC for 7 days in deep-freezer and frozen fillets were thawed with 4 different thawing techniques such as thawing in room temperature (+25ºC), immersion in water (+15 ºC), in refrigerator (+4 ºC) and in microwave (defrost option). Finally, color characteristics of thawed fillets were determined. According to the results, while the most similar color profile to fresh Black Sea trout meat was detected on thawed in refrigerator at +4ºC, most color loss was observed in microwaved ones. In view of the results and considering food safety, thawing of frozen fish fillets in refrigerator (+4ºC) is more convenient.
The Drought Effect on Seed Germination and Seedling Growth in Bread Wheat (Triticum aestivum L.)
Authors: KIZILGEÇİ Ferhat , TAZEBAY Nihan , NAMLI Mihriban , ALBAYRAK Önder , YILDIRIM Mehmet
Published: April 2018

Drought is a major abiotic stress that threating the producing and survival of many crops such as cereal. Wheat is grown on arid lands and drought often causes serious problem in wheat production on these fields. In this study, it was determined that the effect of five different drought stress (0, -0.3, -0.6, -0.9, -1.2 MPa, by using PEG 6000 solution) on the germination of 4 different bread wheat cultivars (Tekin, Pehlivan, DZT13-1 and DZT13-2). The study was carried out according to completely randomized design in factorial arrangement with four replications. In the present study, important growth parameters like germination rate (%), seedling vigor (%), coleoptile length (cm), root length (cm) and shoot length (cm) were observed. Results showed when dose of PEG increased, seedling growth was significantly affected. Increasing drought stress was resulted with a decrease on germination rate, seedling vigor, coleoptile length, root length and shoot length.
Effects of Thiamethoxam on Vespula Germanica (F.) (Hymenoptera: Vespidae)
Authors: Karahan Ahmed , Nur Şahpaz Fatma , Kutlu Mehmet Ali , Karaca İsmail
Published: April 2018

Damage of pesticides used in agriculture on non-target organisms (except honey bees) is not sufficiently considered and neglected. Studies showed that wild bees, like honey bees, were also affected by pesticides. Wild bee species should also be protected because of their importance in pollination and biological control and also in order to protect biodiversity. Effects of pesticides on wild bees should be investigated without delay and precautions should be taken to protect the generations of wildlife. In addition, while increasing the agricultural areas,  habitat for wild pollinators should be established.In this study, effect of Thiamethoxam, an agriculturally active agent in the neonicotinoid group, commonly used in agriculture fields, on the European wasp (Vespula germanica) was investigated. For this purpose, 2 molar carnation-flavored syrup in a petri dish was placed in a field where wild bees are frequent, and wild bees had got accustomed there. Trial doses were prepared with thiamethoxam dose commonly used in agricultural areas (15 ml/100 L water) and 50% dilutions of this dose (15.00, 7.50, 3.75, 1.87, 0.93, 0.46, 0.23, 0.12, 0.06 ml/100 L water) and fed in 2 molar syrup. Those who returned to the carnation petri dish after feeding were recorded at the 1st, 4th and 24th hours.At the end of the study, bees fed with 15.00, 7.50, and 3.75 ml / 100 L doses of the pesticide all died. One hour after pesticide ingestion, 84.73% of the control group and 13.33% of the bees fed with 1.87 ml / 100L dose, were alive and returned to the syrup petri dish.
Evaluation of the Mineral Element Profile of Wastes of Some Wine Grape (Vitis vinifera L.) Varieties
Authors: Tangolar Serpil , Alkan Torun Ayfer , Tangolar Semih , Torun M. Bülent
Published: April 2018

In this study, the level of macro and micro elements of six wine grape cultivars were determined in seeds, bagasse (skin and pulp) and pomace (seed, skin and pulp) by inductively coupled plasma mass spectrometry and atomic absorption spectroscopy after microwave digestion (ICP-AES). The levels of macro and micro elements exhibited a genotype dependent alteration and affected by the part of the berry sampled. Potassium was the predominant macro element in bagasse and pomace, varying from 6.78 g/kg dry weight in pomace (Carignane) to 21.05 g/kg dry weight in bagasse (Cabernet Sauvignon). However, the level of calcium was higher than potassium in seeds and varied between 4.95 g/kg (Kalecik karası) and 6.73 g/kg (Carignane). Seeds were also richer than the bagasse and pomace related with phosphorus, magnesium, and sulfur. Among the micro elements, Fe had the highest amount in all parts of the berries. Its content ranged from 13.9 mg/kg dry weights in bagasse of Semillon to 24.8 mg/kg dry weight in seeds of Syrah. Iron, manganese, zinc and molybdenum in seeds; copper and boron in bagasse were higher amount than the other groups analyzed. The results of this study show that all parts of the grape berries are potentially rich sources of mineral elements. So, they could be used as a food supplement to improve the nutritive value of the human diet and for some engineering processes in food industry.
Various aspects of soil and tree layer vegetation analysis in tropical dry deciduous forest of Hastinapur
Authors: Khurana Poonam , Arya R.C , Rani Poonam
Published: April 2018

Different parameters of Soil and vegetation analysis were carried out in Tropical dry deciduous forest of Hastinapur region of Uttar Pradesh. Vegetation of present study sites showed effects of various anthropogenic disturbances. The highly disturbed stand I showed low tree density while less disturbed stand III showed high tree density and good regeneration pattern. D-D curve were also drawn on the basis of the IVI of different species. Population structure of different tree species was drawn to understand the regeneration pattern. The most characteristic feature of the forest is dominance of xerophytic species and open forest canopy due to disturbances. Overgrazing and other biotic factors are making the area poor both in nutrient and top soil, which will eventually result in desertification of the Hastinapur in long run.
Evaluation of total phenols and antibacterial activity of certain drug plants against some bacterial species
Authors: Ranpariya Manisha G. , Chudasama Rita S.
Published: April 2018

The present paper deals with antimicrobial activity of Glycyrrhiza glabra, Tinospora cordifolia, Tribulus terrestris, Thevetia peruviana, Adhatoda vasica, Vitex negungo, Apium graveolens and, Annona squamosa. It was studied against Bacillus cereus, Staphylococcus aureus, Salmonella typhy B (STB), Shigella dysenteriae using solvent (methanol and petroleum ether) extraction method. Methanol extract of all eight plants showed prominent inhibitory activity against S. dysenteriae and STB while G. glabra, V. negundo, and T. peruviana showed maximum zone of inhibition against four studied bacterial species. These results suggest that methanol extract is more effective than petroleum ether for the antimicrobial activity. Further total phenols were estimated and antibacterial activity of these plants in relation to total phenolic content is discussed.
The influence of zinc on early growth and nutrient uptake by pumpkin (Telfairia occidentalis Hook F) in an ultisol
Authors: Orhue Ehi Robert , Ekhomun Mathew Akhere , Dafikpaku Chukumedum , Eze Livinus
Published: April 2018

The study investigated the influence of zinc on some growth parameters of Telfairia occidentalis as well as its effect on some soil chemical properties in field experiment carried out at the experimental farm of Faculty of Agriculture, University of Benin, Benin City, Nigeria. Four levels of treatment namely 0, 20, 40 and 80kg ZnSO4 ha-1 were used in an experiment laid out in a randomized complete block design with 3 replicates. Results showed that the soil Zn, N, P, K, Mg, exchangeable acidity, increased inconsistently from 0.002 mgkg-1, 0.60 gkg-1, 2.70 mgkg-1, 0.09 cmolkg-1, 0.30 cmolkg-1, 2.40 cmolkg-1 to 154.18 mgkg-1, in 80 kgZnha-1, 0.63 gkg-1 in 0 kgZnha-1, 3.86 mgkg-1 in 0 kgZnha-1, 0.12 cmolkg-1 in 80 kgZnha-1, 0.41 cmolkg-1 in 0 kgZnha-1, 2.50 cmolkg-1 in 80 kgZnha-1 respectively. The free Fe oxide, free Al oxide, amorphous Fe oxide and amorphous Al oxide also increased from 5.92%, 0.74%, 0.07%, 0.03% to 6.18% in 0 kgZnha-1, 1.98% in 80 kgZnha-1, 0.74% in 80 kgZnha-1, 0.35% in 80 kgZnha-1 respectively. While the soil pH, organic carbon, Ca and Na also inconsistently decreased from 5.70, 10.70 gkg-1, 1.60 cmolkg-1, and 0.06 cmolkg-1 to 5.09 in 20 kgZnha-1, 10.30 gkg-1 in 20 kgZnha-1, 0.36 cmolkg-1 in 80 kgZnha-1 and 0.041 cmolkg-1 in 20 kgZnha-1 respectively. The K, Mg and Zn content of the root increased with increase in Zn treatment whereas the Na decreased with increase in Zn application. The root Ca and P were however not consistent. In the shoot, the Mg, N, K, Ca, Na and Zn minerals also increased with increase in Zn application. The P content of the shoot was however not consistent. With the exception of Na uptake by the root, which decreased with Zn treatment, the entire nutrients uptake, plant height, number of leaves and the dry matter yield increased with increased Zn treatments. The leaf area and stem girth were however not consistent with increase in Zn application.
Composition variation in essential oils of Artemisia nilagirica and Artemisia capillaris, growing in India
Authors: Badoni Ruchi , Semwal Deepak Kumar , Rawat Usha
Published: April 2018

The present study was aimed to find out the chemical constituents of essential oils of Artemisia nilagirica (Clarke) Pamp. and Artemisia capillaris Thunb. of Asteraceae family, growing in Garhwal region of India. The essential oils were obtained by hydro-distillation and subjected to detailed GC-MS analysis in order to determine the variation in their volatile constituents. While comparing the common constituents in both of the species, the remarkable variation was observed and it was 6.03, 3.251, 2.093, 33.73, 7.573, 15.041 and 8.00% for trans-caryophyllene, DL-limonene, ?-pinene, ?-thujone, ?-myrcene, ?-ocimene and ?-thujone, respectively.
Copper sulphate induced changes in scaphognathite oscillations and oxygen consumption of fresh water prawn, Macrobrachium lamarrei (Crustacea- Decapoda)
Authors: Verma Dharm Raj , Lodhi Harnam Singh , Tiwari Kunwer Ji , Shukla Sanjive , Sharma U.D.
Published: April 2018

Fresh water prawns, Macrobrachium lamarrei were subjected to acute concentration, 0.304 mg/l (96h LC50) of Copper sulphate to evaluate its effects on scaphognathite oscillations and oxygen consumption rate. Scaphognathite oscillations showed initial increase after 24h, thereafter significantly (t = 9.24; P<0.001) decreased up to 72h and finally tend to increase after 96h but remained below the controls where as oxygen consumption showed continuous decreasing trend through out the experiment up to 96h (t = 16.53; P<0.001) than control ones. Possible interaction of copper in relation to respiration of these economically important crustaceans has been discussed.
Photoperiodic modulation of circadian rhythms in the silk gland protein profiles of Bombyx mori and its influence on the silk productivity and quality
Authors: Sailaja B. , Sivaprasad S.
Published: April 2018

Circadian rhythms in the silk gland protein profiles of Bombyx mori were analyzed under 12 h light and 12 h dark cycle (LD), continuous light (LL) and continuous dark (DD) conditions. The phase response curves of protein rhythms indicate the prevalence of a series of silk cycles, each comprising three phases; transcription, translation and consolidation of silk proteins. In the 24h- protein rhythm, the silk cycle repeats every 3h, 42 m under LD, 2h, 36m under LL and 3h under DD. The light and dark conditions advanced the rhythm of each silk cycle by 48m and 24m respectively. As a result the silk gland completes 7 rounds of protein synthesis under LD, 9 rounds under LL and 8 rounds under DD during the 24h-free running time of the rhythm. The light-induced clock-shift in the protein rhythm caused significant gains in economic parameters of sericulture with positive signals for enhancing silk productivity and quality.
In vitro antimicrobial and antioxidant activities of the essential oil of Craniotome furcata
Authors: Joshi R. K.
Published: April 2018

The aim of present study was, to investigate the essential oil of Craniotome furcata for its antimicrobial and antioxidant activities. The essential oil was obtained by steam distillation of the flowering aerial parts of C. furcata. The oil was tested for its antimicrobial activity in vitro against four Gram-positive, four Gram-negative bacteria and three fungi, by using disk diffusion and tube dilution methods. The antioxidant potential of the essential oil was investigated by two different models DPPH free radical and ABTS free radical cation scavenging. The essential oil was effective against all the tested microorganisms, with minimum inhibitory concentrations (MICs) ranged from 4.11±1.44 to 0.30±0.10 mg/ml. The oil showed antioxidant activity in DPPH free radical and ABTS free radical cation scavenging model. The results of this study revealed that the essential oil of C. furcata possesses antimicrobial and antioxidant activities.
Effect of combinations of four trace elements on cadmium bioaccumulation in a few tissues of male albino rats
Authors: Rani A. Usha , Babu D. Kumar , Obaiah J.
Published: April 2018

The present study is designed to investigate the accumulation of cadmium (Cd) in selected tissues such as liver, kidney, testis and small intestine of male albino rats treated for Cd and after combined supplementation with Zinc (Zn) + Iron (Fe) and Selenium (Se) + Copper (Cu). The wistar albino rats were treated with cadmium chloride(CdCl2)at a dose of 1/10th LD50 i.e. 22.5 mg / kg body weight for 7, 15 and 30 days(d) time intervals. After 15 d to Cd treatment, the rats were then supplemented with the above combination of two trace elements and thenobserved for accumulation of Cd at specific time intervals. These trace elements at a dosage of 1 mg/ kg body weight of Se, 16mg/kg body weight of Cu, 12 mg / kg body weight of Zn and 40 mg / kg body weight of Fe were given as supplements. There was significant Cd accumulation in liver and kidney among the selected tissues before to supplementation and there was significant decrease in the Cd accumulation levels in all the tissues after trace element supplementation. Moreover the 30d Zn + Fe supplemented rat kidney showed maximum decrease in Cd accumulation (8.327?g/g wet wt. of the tissue).
Mapping a New History of the Ecological Turn: The Circulation of Environmental Knowledge in Sweden 1967
Authors: Heidenblad David Larsson
Published: April 2018

This essay introduces environmental historians to a new approach inspired by the burgeoning field of
Wissensgeschichte
; that is, the study of societal circulation of knowledge. It is argued that this new method can help us to better map out and analyse the emergence of modern environmentalism in society at large. To demonstrate the practical implications of the argument the essay is centred on an empirical investigation of a formative moment in Swedish environmental history: the eventful autumn of 1967. The study makes evident that during this period environmental issues began to be publicly regarded as a pressing global question of survival and that this development was intrinsically linked with the production of a certain kind of future-oriented expertise. The empirical findings of the essay shows that by shifting our analytical attention towards the societal circulation of knowledge we can gain new insights into the public emergence of environmentalism. It is argued that this line of research can provide a new basis for environmental historians seeking to write a new and enlarged history of the ecological turn.
Effects of Hidden Curriculum on Students' Learning in Undergraduate Medical Education in Bangladesh Students' Views
Authors: Rahimgir Md , Habib Md Ahsan , Talukder Md Humayun Kabir
Published: April 2018

The present study was conducted amongst fourth and fifth year MBBS students of six medical colleges (4 govt. & 2 nongovt.) of Bangladesh to study their views regarding hidden curriculum and its effects on students learning in undergraduate medical education. A total of 637 students were included in the study. Out of 637 students, 393(61.7%) were female and 244(38.3%) male students. Three hundred and fifty (54.95%) were from fourth year and 287(45.05%) students were from fifth year MBBS. Most of the students (96.7%) agreed that teachers' good behavior with students influences students' active participation in the class. The mean score was highly satisfactory(mean 4.68 ± 0.643). Of the total responded students, 58.9% strongly agreed that teachers' good behavior with parents influences students to do the same, and mean score was highly satisfactory. More than 87% agreed that teachers' good behavior with colleagues influence students to do so. The mean score was 4.40 ± 0.730 and it was also highly satisfactory. Around 70% of the students strongly agreed that teachers' good behavior with the patients and attendances influences students to maintain similar behavior and attitude with the patients and attendances. The mean score was 4.64 ± 0.643. As per views' of the students, teachers' depth of knowledge, devotion to the work, interest in the subject, honesty, fairness, teachers' language and art of expression also affects students learning. The mean score was more than four as opined by the students in favor of institutional educational environment, cultural norms, values, traditions all of which can affect students' learning. Teachers' humiliation of the students, gender discriminations, social class difference, and students' politics in the institutes all can affect students' learning badly. After data analysis it was observed that many of the hidden factors normally exists in the institutes that affect students' learning positively and others affect negatively.Bangladesh Journal of Medical Education Vol.9(1) 2018: 2-6
Students' and Teachers' Perceptions About Hospital Educational Environment In Selected Postgraduate Medical Institutes of Bangladesh
Authors: Alo Dilara , Talukder Md Humayun Kabir , Rahim Riffat
Published: April 2018

This descriptive type of cross sectional study was carried out to observe the hospital educational environment of selected postgraduate medical institutes of Bangladesh. Study period was from July 2016 to June 2017.Sample size was 289 postgraduate clinical students of various course (MD, FCPS & Diploma) and 20 clinical teachers of 10 selected postgraduate medical institutes of Bangladesh. Convenience sampling technique was adopted. Data collection was done with self- administered semi-structured questionnaire using Postgraduate Hospital Educational Environment Measurement (PHEEM) inventory and by In-depth interview of teachers. Three subscales of PHEEM are students' perceptions about 'role autonomy', students' perceptions about quality of teaching and students' perceptions about social support. In-depth interview of the clinical teachers was undertaken to explore the training facilities in the selected postgraduate medical institutes of Bangladesh. Study result revealed total PHEEM score was110.08.Mean score of subscales of PHEEM were 34.51, 36.29 and 26.28 for 'role autonomy', quality of teaching and social support respectively. All these values indicates that the students' perception were in the right or positive direction. Analysis of individual items had shown mean score of most of the individual item were 2-3 that indicated the aspects of the climate that could be enhanced. There were few items that had mean score 2 or less than 2 that indicated the problematic areas of hospital educational environment. In-depth interview of the teachers revealed that there was also some problematic issues on postgraduate training facilities like work overload, lack of proper monitoring or supervision of training, inadequate library, internet, ICU and investigation facilities etc. Study recommended that significant attention should be paid in the problematic areas (lack of supervised training, heavy work load of student, lack of library facility etc.) as well as improvement needed on several areas of hospital educational environment of postgraduate medical institutes of Bangladesh.Bangladesh Journal of Medical Education Vol.9(1) 2018: 7-9
Barriers of faculty development in under graduate medical education of Bangladesh
Authors: Rahman Shamima , Noman Farhana , Sultana Abida , Khatoon Soofia
Published: April 2018

This descriptive cross sectional study was carried out to identify the existing barriers of faculty development in undergraduate medical education of Bangladesh. This study was conducted in eight (four Government and four Non- Government) medical colleges in Bangladesh over a period from July 2015 to June 2016. A semi-structured self-administered questionnaire was used for collecting data from individual teacher. Total 103 teachers responded to the questionnaire. Regarding barriers of faculty development about 47% respondents opined that insufficient initiatives by the institute, 38% of teachers opined too much workload. About 24% teachers opined lack of recognition and reward, 19% opined about lack of fund, 14% teachers' opined lack of organized programme, 12% about lack of qualified resource person for faculty development programme. From the findings of present study it is evident that medical institutes of Bangladesh should play a bit more active role for faculty development programme, should organize arrangement for adequate resources particularly faculty development instructors and funding for faculty development.Bangladesh Journal of Medical Education Vol.9(1) 2018: 10-13
Competencies Learned by the Students through Ambulatory Care Teaching In Undergraduate Medical Education in Gynaecology & Obstetrics in Different Medical Colleges of Bangladesh: Interns' and Teachers' view
Authors: Ara Iffat , Talukder Md Humayun Kabir , Nargis Tahmina
Published: April 2018

This descriptive cross sectional study was carried out to assess the competencies learned by the students through ambulatory care teaching according to teachers' and interns' view in the undergraduate medical education in Gynaecology and Obstetrics in the medical colleges of Bangladesh. Study was conducted on nine medical colleges including five Public medical colleges and four Private medical colleges. Total 58 teachers & 567 interns participated in the study, and Separate self-administered semi structured questionnaire were used to collect their valuable opinions. Most of the teachers mentioned that through ambulatory care teaching students are taught: to greet a patient on arrival; to take history; to take consent before examining a patient; to maintain privacy during examining a patient; to do general examination of a patient; to examine a pregnant patient Most of the interns mentioned that through ambulatory care teaching the competencies learned by the students are: taking history, maintaining confidentiality, maintain privacy during examination, examining a pelvic mass, interpreting investigation reports, making provisional diagnosis. Students also observed the procedure of VIA test, and steps of PAP's test. The study recommends that all clinical teachers should have clear knowledge about ambulatory care teaching & every institute should foster feasible teaching and learning environment.Bangladesh Journal of Medical Education Vol.9(1) 2018: 18-20
Conflicting Interpretations of Artemidorus'sOneirocritica: Freud, Theodor Gomperz, F.S. Krauss and the Symbolic Language of Dreams
Authors: Mayer Andreas
Published: April 2018

In The Interpretation of Dreams, Freud refers several times to Artemidorus’s dream book Oneirocritica dating back to the second century ce as a precursor of his own book. This article explores the meaning of this reference by analysing the interrelations between philological scholarship and emerging psychoanalysis in late nineteenth-century Vienna. Freud's own reading of Artemidorus’s text developed in a critical dialogue with the work of the Austrian philologist Theodor Gomperz and his student Friedrich S. Krauss, who produced the first modern German translation of the Oneirocritica. The symbolic method of the ancient dream books, adapted by Freud in later editions of The Interpretation of Dreams for sexual symbolism, did however also inspire dissenting interpretations within the early psychoanalytic movement. Freud's turn to sexual folklore and ethnography, embodied by Krauss's later studies, played a strategic role in these conflicts over dream interpretation.
Evaluation of the Toxin-to-Protein Binding Rates during Hemodialysis Using Sorbent-Loaded Mixed-Matrix Membranes
Authors: Stiapis Christos , Skouras Eugene , Pavlenko Denys , Stamatialis Dimitrios , Burganos Vasilis
Published: April 2018

The transport and reaction phenomena that take place in multi-layered mixed-matrix membranes with activated carbon (AC) sorbents that are expected to improve extra-corporeal blood purification, are studied at the macroscopic scale. A model was developed that aims at the description of the removal efficiency of harmful uremic toxins from the blood in the presence of carbon-adsorptive particles and produces results that are aligned with the experimental data. The importance of the generally unknown kinetic rate constants of the association of toxins to albumin is investigated through sensitivity analysis. Matching with further experimental data allowed the extraction of vital kinetic rate constants for key uremic toxins such as indoxyl sulfate (IS) and p-cresyl sulfate (PCS). Moreover, the effects of the plasma composition, as well as of the membrane loading with activated carbon, on the total removal of the protein-bound toxins are quantified and discussed.
Organic Light-Emitting Diodes Based on Phthalimide Derivatives: Improvement of the Electroluminescence Properties
Authors: Dumur Frédéric , Ibrahim-Ouali Malika , Gigmes Didier
Published: April 2018

In this study, a phthalimide-based fluorescent material has been examined as a green emitter for multilayered organic light-emitting diodes (OLEDs). By optimizing the device stacking, a maximum brightness of 28,450 cd/m2 at 11.0 V and a maximum external quantum efficiency of 3.11% could be obtained. Interestingly, OLEDs fabricated with Fluo-2 presented a 20-fold current efficiency improvement compared to the previous results reported in the literature, evidencing the crucial role of the device stacking in the electroluminescence (EL) performance of a selected emitter. Device lifetime was also examined and an operational stability comparable to that reported for a standard triplet emitter i.e., bis(4-methyl-2,5-diphenyl-pyridine)iridium(III) acetylacetonate [(mdppy)2Iracac] was evidenced.
Effects of Thermal Frequency on Microstructures, Mechanical and Corrosion Properties of AA6061 Joints
Authors: Jin Li , Xue Jiaxiang , Zhang Zhanhui , Hu Yu
Published: April 2018

Three thermal frequencies that were designated as 3, 4, and 5 Hz were used to reveal the microstructural evolution, mechanical, and corrosion properties of AA6061-T6 sheets that were welded by double pulsed gas metal arc welding (DP-GMAW) using microstructural observations, microhardness tests, tensile tests, bend tests, impact tests, and corrosion tests. A self-developed welding system consisted of a digital multifunctional welder and an arc dynamic waveform wavelet analyzer was chosen to perform welding operations and to record electrical signal waveforms during the welding process. The results show that the process of DP-GMAW was stable, and the weld beads exhibited aesthetic ripples. The ripple distance, the grain size, and porosity of the fusion zone decreased with an increasing thermal frequency. Microhardness and corrosion properties of the weld joint improved when the thermal frequency increased. In addition, all of the joints exhibited excellent bending properties. However, the impact property of the weld joint was lower than that of the BM. It indicated that the low impact energy results of the welded AA6061-T6 sheet were mainly due to the formation of micro-cracks in the fusion zone.
The Influence of Absolute Mass Loading of Secondary Organic Aerosols on Their Phase State
Authors: Jain Shashank , Fischer Kevin , Petrucci Giuseppe
Published: April 2018

Absolute secondary organic aerosol (SOA) mass loading (CSOA) is a key parameter in determining partitioning of semi- and intermediate volatility compounds to the particle phase. Its impact on the phase state of SOA, however, has remained largely unexplored. In this study, systematic laboratory chamber measurements were performed to elucidate the influence of CSOA, ranging from 0.2 to 160 µg m−3, on the phase state of SOA formed by ozonolysis of various precursors, including α-pinene, limonene, cis-3-hexenyl acetate (CHA) and cis-3-hexen-1-ol (HXL). A previously established method to estimate SOA bounce factor (BF, a surrogate for particle viscosity) was utilized to infer particle viscosity as a function of CSOA. Results show that under nominally identical conditions, the maximum BF decreases by approximately 30% at higher CSOA, suggesting a more liquid phase state. With the exception of HXL-SOA (which acted as the negative control), the phase state for all studied SOA precursors varied as a function of CSOA. Furthermore, the BF was found to be the maximum when SOA particle distributions reached a geometric mean particle diameter of 50–60 nm. Experimental results indicate that CSOA is an important parameter impacting the phase state of SOA, reinforcing recent findings that extrapolation of experiments not conducted at atmospherically relevant SOA levels may not yield results that are relevant to the natural environment.
Non-Transfusional Hemocomponents: From Biology to the Clinic—A Literature Review
Authors: Gasparro Roberta , Qorri Erda , Valletta Alessandra , Masucci Michele , Sammartino Pasquale , Amato Alessandra , Marenzi Gaetano
Published: April 2018

Non-transfusional hemocomponents for surgical use are autogenous products prepared through the centrifugation of a blood sample from a patient. Their potential beneficial outcomes include hard and soft tissue regeneration, local hemostasis, and the acceleration of wound healing. Therefore, they are suitable for application in different medical fields as therapeutic options and in surgical practices that require tissue regeneration.
Quality of Life and Stigma in Epilepsy, Perspectives from Selected Regions of Asia and Sub-Saharan Africa
Authors: Boling Warren , Means Margaret , Fletcher Anita
Published: April 2018

Epilepsy is an important and common worldwide public health problem that affects people of all ages. A significant number of individuals with epilepsy will be intractable to medication. These individuals experience an elevated mortality rate and negative psychosocial consequences of recurrent seizures. Surgery of epilepsy is highly effective to stop seizures in well-selected individuals, and seizure freedom is the most desirable result of epilepsy treatment due to the positive improvements in psychosocial function and the elimination of excess mortality associated with intractable epilepsy. Globally, there is inadequate data to fully assess epilepsy-related quality of life and stigma, although the preponderance of information we have points to a significant negative impact on people with epilepsy (PWE) and families of PWE. This review of the psychosocial impact of epilepsy focuses on regions of Asia and Sub-Saharan Africa that have been analyzed with population study approaches to determine the prevalence of epilepsy, treatment gaps, as well as factors impacting psychosocial function of PWE and their families. This review additionally identifies models of care for medically intractable epilepsy that have potential to significantly improve psychosocial function.
Long-Term Satisfaction and Patient-Centered Outcomes of Deep Brain Stimulation in Parkinson’s Disease
Authors: Karl Jessica , Ouyang Bichun , Colletta Kalea , Verhagen Metman Leo
Published: April 2018

Bilateral subthalamic nucleus (STN) deep brain stimulation (DBS) is an effective and proven treatment option for patients with advanced Parkinson’s disease (PD). Long-term outcomes (>5 years) have demonstrated sustained improvement in objective motor symptoms; however, few studies have evaluated patient-centered outcomes other than quality of life (QOL). A locally developed DBS-patient-centered outcomes questionnaire was administered to PD patients >5 years post-DBS. All questions were scored on a ten-point scale, whereby 0 represented the most ‘positive’ answer and 10 the most ‘negative’ answer. Pre-operative scales were repeated at the time of survey. Fifty-two patients (mean 8.2 ± 2.6 years post-DBS) were included. Satisfaction was high with median score (range) of 1/10 (0–8) at the time of survey. Patients endorsed having made the correct decision by undergoing DBS, with a score of 0 (0–10), would choose to have DBS again, with a score of 0 (0–10), and would recommend DBS to others, with a score of 0 (0–10). Pre-operative expectation target was set at a high level with a score of 2 (0–10). Parkinson’s Disease QOL (PDQ-39) Questionnaire Summary Index (SI) scores were, mean (SD), 2.1 (18.2) above baseline (p = 0.44). Those with worsening in PDQ-39-SI scores had less satisfaction with DBS (rs = 0.57, p ≤ 0.0001). This is the first study to assess long-term patient satisfaction with STN DBS. We are currently collecting data prospectively to confirm the results of these preliminary findings.
Epigenetic Modifications as Biomarkers of Tumor Development, Therapy Response, and Recurrence across the Cancer Care Continuum
Authors: Thomas Margaret , Marcato Paola
Published: April 2018

Aberrant epigenetic modifications are an early event in carcinogenesis, with the epigenetic landscape continuing to change during tumor progression and metastasis—these observations suggest that specific epigenetic modifications could be used as diagnostic and prognostic biomarkers for many cancer types. DNA methylation, post-translational histone modifications, and non-coding RNAs are all dysregulated in cancer and are detectable to various degrees in liquid biopsies such as sputum, urine, stool, and blood. Here, we will focus on the application of liquid biopsies, as opposed to tissue biopsies, because of their potential as non-invasive diagnostic tools and possible use in monitoring therapy response and progression to metastatic disease. This includes a discussion of septin-9 (SEPT9) DNA hypermethylation for detecting colorectal cancer, which is by far the most developed epigenetic biomarker assay. Despite their potential as prognostic and diagnostic biomarkers, technical issues such as inconsistent methodology between studies, overall low yield of epigenetic material in samples, and the need for improved histone and non-coding RNA purification methods are limiting the use of epigenetic biomarkers. Once these technical limitations are overcome, epigenetic biomarkers could be used to monitor cancer development, disease progression, therapeutic response, and recurrence across the entire cancer care continuum.
Palladium-Catalyzed Regioselective Alkoxylation via C-H Bond Activation in the Dihydrobenzo[c]acridine Series
Authors: Large Benjamin , Bourdreux Flavien , Damond Aurélie , Gaucher Anne , Prim Damien
Published: April 2018

5,6-Dihydrobenzo[c]acridine belongs to the large aza-polycyclic compound family. Such molecules are not fully planar due to the presence of a partially hydrogenated ring. This paper describes the first Pd-catalyzed alkoxylation via C-H bond activation of variously substituted 5,6-dihydrobenzo[c]acridines. We determined suitable conditions to promote the selective formation of C-O bonds using 10% Pd(OAc)2, PhI(OAc)2 (2 eq.) and MeOH as the best combination of oxidant and solvent, respectively. Under these conditions, 5,6-dihydrobenzo[c]acridines bearing substituents at both rings A and D were successfully functionalized, giving access to polysubstitutited acridine motifs.
Polystyrene-Supported Acyclic Diaminocarbene Palladium Complexes in Sonogashira Cross-Coupling: Stability vs. Catalytic Activity
Authors: Mikhaylov Vladimir , Sorokoumov Viktor , Liakhov Denis , Tskhovrebov Alexander , Balova Irina
Published: April 2018

Two types of immobilized on the amino-functionalized polystyrene-supported acyclic diaminocarbene palladium complexes (ADC-PdII) are investigated under Sonogashira cross-coupling conditions. Depending on substituents in the diaminocarbene fragment immobilized ADC-PdII, systems are found to have different catalytic activity and stability regarding Pd-leaching. PdII-diaminocarbenes possessing protons at both nitrogen atoms smoothly decompose into Pd0-containing species providing a catalytic “cocktail system” with high activity and ability to reuse within nine runs. Polymer-supported palladium (II) complex bearing NBn–Ccarbene–NH-moiety exhibits greater stability while noticeably lower activity under Sonogashira cross-coupling. Four molecular ADC-PdII complexes are also synthesized and investigated with the aim of confirming proposed base-promoted pathway of ADC-PdII conversion through carbodiimide into an active Pd0 forms.
Study of Pressure Drop in Fixed Bed Reactor Using a Computational Fluid Dynamics (CFD) Code
Authors: Ahmadi Soroush , Sefidvash Farhang
Published: April 2018

Pressure drops of water and critical steam flowing in the fixed bed of mono-sized spheres are studied using SolidWorks 2017 Flow Simulation CFD code. The effects of the type of bed formation, flow velocity, density, and pebble size are evaluated. A new equation is concluded from the data, which is able to estimate pressure drop of a packed bed for high particle Reynolds number, from 15,000 to 1,000,000.