bluuebunny/crossref_metadata_2025 huggingface dataset:
Silver nanoparticles functionalized in situ with D-limonene: Effect on antibacterial activity
Authors: Echeverry-Chica Julián , Naranjo-Díaz Andrea , Araque-Marín Pedronel
Published: November 2022

This study focused on the formulation and characterization of silver nanoparticles (AgNP) functionalized with d-limonene. The nanoparticles were functionalized by phase inversion and the synthesis of the nanoparticles was performed in situ; particle size was determined by laser diffraction, zeta potential and optical colloidal stability using Multiscan 20 for a period of 24 hours at 37 °C; the minimum inhibitory concentration (MIC) and minimum bactericidal concentration (MBC) of the formulated material on Escherichia coli ATCC 25922, Staphylococcus aureus ATCC 29213, Klebsiella oxytoca ATCC 700324, Enterococcus casseliflavus ATCC 700327, Escherichia coli BLEE, carbapenem-resistant Pseudomona aeruginosa were determined. The nanoparticles showed colloidal stability at a d-limonene concentration of 3.93%, silver ions at 1.61 × 10−3%, non-ionic adjuvant at 24% and ascorbic acid at 5.88%; citric acid/citrate (1:1) 0.48M for a pH of 4.5 was used as a buffer system. The formulation was classified as a polydisperse system (PD = 0.0851), with a zeta potential of −11.6 mV and average particle size of 81.5 ± 0.9 nm. A particle migration velocity of −0.199 ± 0.006 mm∙h−1, a constant transmission profile and backscattering profile with variations of 10% were evidenced, which represents a stable formulation. The nanoparticles presented an MIC and an MBC of 28 μg∙mL−1 (5.6 × 10−2% d-limonene and 4.7 × 10−5% AgNP) against all tested bacteria.
Study on the absorption characteristics and refractive index sensitivity characteristics of the periodic structure of double nanorods
Authors: Yang Fengying
Published: November 2022

Metamaterial perfect absorber is very important in the study of refractive index sensor. The time domain finite difference method is used to simulate the surface plasmon structure. The double nanorod periodic structure is designed, and the parameters of the top layer structure are optimized according to the impedance matching principle, and the absorption rate of the structure to the light wave reaches 99.6% when the wavelength is about 12 mm. The absorption spectroscopy of the structure is studied with the change of the refractive index of the spatial medium around the structure, and the sensitivity of the double nanorod structure is 4,008 nm/RIU, which can be used to measure the refractive index of the gas.
Preparation and application of carbon-based hollow structured nanomaterials
Authors: Zhang Xingmiao , Zhang Wei , Li Wei
Published: November 2022

Carbon-based hollow structured nanomaterials have become one of the hot areas for research and development of hollow structured nanomaterials due to their unique structure, excellent physicochemical properties and promising applications. The design and synthesis of novel carbon-based hollow structured nanomaterials are of great scientific significance and wide application value. The recent research on the synthesis, structure and functionalization of carbon-based hollow structured nanomaterials and their related applications are reviewed. The basic synthetic strategies of carbon-based hollow structure nanomaterials are briefly introduced, and the structural design, material functionalization and main applications of carbon-based hollow structure nanomaterials are described in detail. Finally, the current challenges and opportunities in the synthesis and application of carbon-based hollow structured nanomaterials are discussed.
Development, optimization, and evaluation of Cisplatin-loaded PLGA nanoparticles
Authors: Bhuvaneshwaran Purushothaman , Velmurugan Ramaiyan
Published: November 2022

Nanoparticle drug delivery systems are engineered technologies that use nanoparticles for the targeted delivery and controlled release of therapeutic agents. Cisplatin-loaded nanoparticle formulations were optimized utilizing response surface methods and the central composite rotating design model. This study employed a central composite rotatable design with a three-factored factorial design with three tiers. Three independent variables namely drug polymer ratio, aqueous organic phase ration, and stabilizer concentration were used to examine the particle size, entrapment efficiency, and drug loading of cisplatin PLGA nanoparticles as responses. The results revealed that this response surface approach might be able to be used to find the best formulation for the cisplatin PLGA nanoparticles. A polymer ratio of 1:8.27, organic phase ratio of 1:6, and stabilizer concentration of 0.15 were found to be optimum for cisplatin PLGA nanoparticles. Nanoparticles made under the optimal conditions found yielded a 112 nm particle size and a 95.4 percent entrapment efficiency, as well as a drug loading of 9 percent. The cisplatin PLGA nanoparticles tailored for scanning electon microscopy displayed a spherical form. A series of in vitro tests showed that the nanoparticle delivered cisplatin progressively over time. According to this work, the Response Surface Methodology (RSM) employing the central composite rotatable design may be successfully used to simulate cisplatin-PLGA nanoparticles.
TATA LAKSANA PENDARATAN IKAN DAN ANTRIAN KAPAL DI PELABUHAN PERIKANAN PANTAI MAYANGAN
Authors: Jaya Made Mahendra , Khikmawati Liya Tri , Putra I Putu Yoga Iswara
Published: November 2022

Pelabuhan Perikanan Pantai (PPP) Mayangan merupakan salah satu tempat kegiatan perikanan tangkap di Kota Probolinggo yang dilengkapi dengan fasilitas pasar ikan, pabrik es, akses jalan mudah, dan lain-lain. Fasilitas-fasilitas tersebut harus mampu melayani atau mendukung aktivitas kegiatan kapal penangkap ikan. Oleh karena itu, tujuan dilaksanakannya penelitian ini adalah untuk mengetahui tata laksana pendaratan ikan di PPP mayangan serta untuk melihat penanganan antrian kapal yang ada di PPP Mayangan. Penelitian bersifat deskriptif dan metode penelitian yang digunakan adalah studi kasus. Data primer yang dikumpulkan adalah fungsi dan fasilitas di PPP Mayangan. Hasil penelitian menunjukkan bahwa PPP Mayangan memiliki 3 dermaga (jetty, landing, dan sheet pile). Dermaga jetty digunakan untuk kapal sandar. Proses pendaratan ikan di dermaga landing, kapal datang melakukan tambat labuh di dermaga. Bongkar muat hasil tangkapan dengan menggunakan keranjang dari bambu dan dibawa ke TPI dengan cara dipanggul oleh para ABK serta juru pikul ikan. Dermaga sheet pile, proses bongkar muat hasil tangkapan dibantu dengan seluncuran yang terbuat dari kayu. Ikan diturunkan dari kapal dengan seluncuran kemudian dimasukkan ke dalam keranjang plastik, kemudian dibawa ke TPI atau diangkut langsung dengan mobil box untuk segera dijual. Kondisi ikan yang pada saat proses bongkar muat sangat diperhatikan untuk menjaga kualitas ikan. Sistem antrian kapal pada PPP Mayangan menggunakan sistem antrian jalur tunggal tahapan berganda (single channel multi server).
Updates in heart failure: sodium glucose co-transporter 2 inhibitors and beyond – major changes are coming
Authors: Cimino Giuliana , Pancaldi Edoardo , Tomasoni Daniela , Lombardi Carlo Mario , Metra Marco , Adamo Marianna
Published: November 2022

Prevalence of heart failure is increasing worldwide mainly due to the ageing of the population and the improvement in diagnosis and treatment. In recent years, huge progress has been made in the management of heart failure patients. A new definition of chronic heart failure based on left ventricular ejection fraction and its possible trajectories has been reported. New drug classes have been introduced for the treatment of chronic heart failure. In particular, the prognostic benefit of sodium glucose co-transporter 2 inhibitors was demonstrated across all the heart failure phenotypes. Therapies for patients with advanced heart failure (long-term mechanical circulatory supports and heart transplantation) are now indicated also in the case of mild-to-moderate symptoms but with high risk of progression. In patients with acute heart failure, monitoring of urinary sodium and the use of acetazolamide may lead to better decongestion. Importantly, pre- and postdischarge assessment should lead to optimal treatment. Devices and telemonitoring can also be of help. Cardiovascular and noncardiovascular comorbidities are major determinants of the clinical course and need proper management. This review will summarize these important advances.
Histamine content in selected production stages of fish products
Authors: Madejska Anna , Pawul-Gruba Marzena , Osek Jacek
Published: November 2022

Introduction

Histamine intoxication, known as scombroid fish poisoning, is caused by the consumption of foods with high levels of histamine. This biogenic amine is formed as a result of histidine decarboxylation by bacterial decarboxylases present in food, including fish and fish products. The aim of this study was to investigate the content of histamine at different production stages of canned, marinated and smoked fish.

Material and Methods

Raw fish, semi-finished fish products, and the final products of the same production batches were collected between 2019 and 2022 from different fish production facilities in Poland. A total of 133 raw fish samples and 76 smoked fish, 54 brined fish, 39 canned fish and 18 marinated fish final products were analysed using high performance liquid chromatography with a diode array detector.

Results

Histamine was identified in 55 (17.2%) out of 320 tested samples, including 8 samples of raw fish with a histamine level above 100 mg/kg. However, no samples of fish products had histamine content above the European Union Commission limit.

Conclusion

The obtained results show that fish products on the Polish market are generally safe for consumers in regard to histamine intoxication risk.
Modelling Net Ecosystem Exchange in the Biebrza Wetlands using satellite and meteorological data
Authors: Dąbrowska-Zielińska Katarzyna , Misiura Katarzyna , Malińska Alicja , Grzybowski Patryk , Gurdak Radosław , Bartold Maciej , Kluczek Marcin
Published: November 2022

The CO2 flux on Biebrza Wetlands in Poland is analysed by ground measurements and satellite data. The main goal of this study was to determine the Net Ecosystem Exchange (NEE) for sedges, reeds and grasses using meteorological, soil and vegetation parameters and satellite indicators. The calculations are based on chamber measurements scattered over the main habitats and meteorological registrations, and compared to the 2015–2022 eddy covariance (EC) measurements. The NEE model, to get its distribution throughout the day, was elaborated using modelled gross primary production GPP and modelled respiration RESP. The model of ecosystem respiration was developed applying air temperature, soil temperature, soil moisture and NDVI. The satellite vegetation index NDVI, surface and air difference temperature (TS-TA), and NDII proved to be good predictors for the daily mean GPP. The data from the EC tower was used to compare the results from modelled NEE and CO2 flux.
La (re)producción de las tradiciones agroalimentarias en los solares mayas de la Península de Yucatán, México
Authors: Cabrera-Pacheco Ana Julia
Published: November 2022

Objetivo: explorar cómo los conocimientos y las prácticas agroalimentarias de las mujeres mayas en sus solares posibilitan la reproducción continua de las formas de vida maya peninsulares. Metodología: métodos cualitativos: encuestas, entrevistas semiestructuradas, observación participante y caminatas comentadas en solares, parcelas y milpas. Una revisión documental sobre los temas principales complementó esta información. Resultados: las mujeres mayas realizan sus actividades agroalimentarias en los solares dentro de los territorios bioculturales peninsulares combinando conocimientos y prácticas que provienen de memorias y tradiciones transmitidas generacionalmente. Limitaciones: la emergencia sanitaria por el Covid-19 limitó las interacciones con las personas participantes. Conclusiones: el trabajo (re)productivo de las mujeres posibilita la continuidad de las formas de vida mayas en los territorios bioculturales peninsulares y es un componente vital para la autonomía y soberanía del pueblo maya.
SOLARNE SUŠARE ZA SUŠENJE ŠLJIVA
Authors: Nikolić Jovan
Published: November 2022

Kroz ovaj rad predstavljeno je rešenje solarne hibridne sušare za sušenje voća malog kapaciteta da idejom da se uspostavi kontrola procesa sušenja na osnovu praćenja temperature i vlažnosti vazduha u toku procesa sušenja. U uvodnom delu dat je kratak osvrt na potencijal solarne energije u Vojvodini. Takođe je dato i kratko istraživanje tržišta voća i potencijal koji šljiva ima na našem području. Prikazane su mogućnosti primene i skladištenja solarne erergije, kao i predlog rešenja jedne solarne sušare za sušenje šljive.
MOGUĆNOST PRIMENE VEŠTAČKIH NEURONSKIH MREŽA SA MALIM SETOM PODATAKA PRI MODELOVANJU RAVNOMERNOSTI KRETANJA KLIZAČA MAŠINA ALATKI
Authors: Živković Aleksandar M. , Marinković Dejan
Published: November 2022

U ovom radu prikazana je analiza eksperimentalnih rezultata primenom veštačkih neuronskih mreža. Na osvnovu dobijenog plana eksperimenta po Tagučiji planu izvršena su eksperimentalna ispitivanja na opitnom uređaju. Nakon toga izvedena je obrada rezultata pomoću sistema veštačkih neuronskih mreža sa variranim brojem ulaza i jednim izlazom.
MODULARNO PROJEKTOVANJE PORTALNIH MANIPULATORA
Authors: Milinić Milorad
Published: November 2022

U radu je predstavljeno modularno projektovanje manipulatora (robota) i njegovo implementiranje u sistem. Kako možemo dizajnirati mehanizme brzo i jednostavno i  na koji način možemo komponovati komponente i automatski ih uklapati. Rad je usmeren ka primeni savremenih tehnologija transporta pravlinom organizacijom skladištenja u industriji proizvodnje guma za putnička vozila, primenom automatizovanog procesa pomoću manipulatora (robota). Problem kod proizvodnje guma za vozila prestavlja transport, skladištenje i razdvajanje gotovog proizvoda po grupama koji se obavlja ručno ili nekom drugom metodom
АУТОМАТСКА ЕКСТРАКЦИЈА ИНФОРМАЦИЈА ИЗ ОДЛУКА НОВОЗЕЛАНДСКИХ СУДОВА
Authors: Матковић Јелена
Published: November 2022

U radu je izvršena ekstrakcija metapodataka novozelandskih sudskih odluka korišćenjem tehnika obrade prirodnog jezika. Predložene su metode mašinskog i dubokog učenja u cilju pronalaženja propisa relevantnih za donošenje odluka i izvršeno poređenje dobijenih rezultata. Pomoću ekstrahovanih referenci pronađeni su precedenti i dokumenti koji su posledica postupaka po pravnom leku na osnovu kojih su oformljene grupe povezanih dokumenata.
РАЗВОЈ ОНТОЛОГИЈЕ УПОТРЕБОМ МЕТОДА ОБРАДЕ ПРИРОДНОГ ЈЕЗИКА
Authors: Роквић Невена
Published: November 2022

Онтологије се користе широм различитих области као супериорно решење за приказивање доменског знања. Традиционални системи грађења онтологије подразумевају комплексан процес који захтева велке количине ресурса и времена. Са развојем науке и области обраде природног језика тај процес је могуће делимично или у потпуности аутоматизовати. Овај рад тежи да применом машинског учења попуни онтологију из домена рачунарских наука. Као улазни подаци за тренирање неуронске мреже коришћени су наставни материјали, где су као резултат добијене уградње речи којима је аутоматски попуњавана онтологија. Добијени модел је евалуиран поређењем са оригиналним подацима из наставних материјала.
INŽENJERING UPOTREBLJIVOSTI SOFTVERA ZA KONTROLU PRISTUPA KORISNIKA
Authors: Stajić Marija
Published: November 2022

Analiza strukture, dizajna, upotreblji­vosti, prednosti i nedostataka aplikacije za kontrolu pris­tupa korisnika. Razlozi za uvođenje kontrole pristupa i moderna rešenja koja obuhvataju pametne telefone i biometrijske tehnologije.
POZITIVAN UTICAJ VIDEO IGARA NA DJECU
Authors: Jović Suzana
Published: November 2022

Pozitivan uticaj video igara na djecu za razvoj logičnog razmišljanja, motorike, socijalizacije i oporavka od najčešćih medicinskih problema. Primjeri video igara sa medicinskim efektom propraćene statis­tičkim podacima.
NFT TEHNOLOGIJA U ZAŠTITI DIGITALNIH UMETNINA
Authors: Šegrt Barbara
Published: November 2022

Digitalna revolucija umetnosti i prob­lem održavanja autentičnosti, kao i autorskih prava. Ulo­ga nezamenljivih tokena i tehnologije blokčejna, na kojoj se zasnivaju, u rešavanju problema autentičnosti i verifikacije vlasništva digitalne umetnosti.
АНАЛИЗА И ПОРЕЂЕЊЕ АЛАТА ЗА ФАЗ ТЕСТИРАЊЕ IoT СИСТЕМА
Authors: Ковачевић Тамара
Published: November 2022

Интернет, стуб друштва без ког се више не може, створио је нови начин за комуни­кацију, коришћење и дељење информација. Брз развој интернета ствара нову визију свакодневних ствари, омогућава развој новог концепта - Интернет ствари (енгл. Internet of things, IOT). IoT омогућава размену мноштва корисних информација, али истовремено доводи и до забринутости у погледу безбедности и приватности. Једна од ефикаснијих метода за тестирање сигурности софтвера јесте тестирање фаз методом. У склопу овог рада анализирани су концепти фаз тестирања IoT уређаја, упоређивани су различити алати и дат је предлог решења њихових недостатака.
KONCEPT VLASNIŠTVA PRI RUKOVANJU MEMORIJOM I NJEGOVA PRIMENA U RUST PROGRAMSKOM JEZIKU
Authors: Jakovljević Uroš
Published: November 2022

U ovom radu su opisani glavni principi i ideje koncepta vlasništva i kako su oni implementirani u programskom jeziku Rust, radi rešavanja problema sa memorijom. Analizirano je kako garancije koje pruža u pogledu bezbednosti memorije utiču na njegovu upotrebljivost, mogućnosti i performanse. Analiziran je i nebezbedni deo programskog jezika i koje su njegove mogućnosti, kao i kako ih programeri koriste.
ИМПЛЕМЕНТАЦИЈА СТЕГАНОГРАФСКОГ СИСТЕМА УПОТРЕБОМ ТЕХНИКЕ СУПСТИТУЦИЈЕ БИТА НАЈМАЊЕ ВАЖНОСТИ
Authors: Турковић Емина
Published: November 2022

Појам „стеганографија“ обично се веже за скривање или прикривање података и информација. У првом делу рада описан је историјски развој стеганографије, њени основни појмови и њена примена. Затим је извршена класификација стеганографије на основу техника коришћених за скривање података, на техничку, лингвистичку и дигиталну стеганографију. Акценат је стављен на подврсту дигиталне стеганографије чији носилац је слика – сликовну стеганографију. Детаљно је описана њена LSB метода, коришћена за имплементацију система који је израђен у оквиру овог рада. Приказани су дизајн и имплементација стеганографске апликације која имплементира LSB методу. Коначно, имплементирани систем је демонстран помоћу низа слика графичког корисничког интерфејса.
ПРОГРАМСКИ МОДЕЛ ЗА ГЕНЕРИСАЊЕ ИЗАЗОВА МАКСИМАЛНЕ ИНКЛУЗИВНОСТИ У ВИДЕО ИГРАМА ЖАНРА „ТРКАЧ“
Authors: Бурсаћ Василије
Published: November 2022

Иако се тематски могу веома разликовати, све видео игре жанра „Тркач“ (енгл. Runner) одликује идентична механика игре. Имајући ово у виду, направљена је генеричка програмска основу која би се могла искористити као полазна тачка за брзи развој видео игара овог жанра. Овај програмски модел је обогађен системом за пружање аудио-визуелно-хаптичких повратних информација играчу. Захваљујући овом систему, постигнут је висок степен инклузивности и "увучености" играча у виртуални свет видео игре. У овом раду је описан један такав програмски модел развијен у Јунити (енгл. Unity) погону, као и  његове могућности и функционалности.
УПРАВЉАЊЕ ЕНЕРГИЈОМ БАТЕРИЈЕ ЕЛЕКТРИЧНОГ ВОЗИЛА ПРЕКО ДЦ ПУЊАЧА
Authors: Војводић Стефан , Думнић Борис
Published: November 2022

У раду је описана технологија рада електричних возила повезаног на мрежу. Објашњено је управљање током енергије батерија електричних возила, и наведене су врсте пуњача електричних возила. У софтверском окружењу MATLAB-SIMULINK симулирано је пуњење и пражњење батерије описаном методом.
REACT NATIVE BAZIRAN KORISNIČKI INTERFEJS ZA EVALUACIJU SLIKE NA ANDROID MOBILNIM UREĐAJIMA
Authors: Anišić Helena
Published: November 2022

U ovom radu će prvo biti predstavljeno prethodno istraživanje na temu evaluacije slike na mobilnim uređajima, a zatim osnove Android operativnog sistema i osnove React Native okvira za razvoj. Pošto je akcenat rada na korisničkom interfejsu, biće predstavljene i smernice za izradu Android korisničkih interfejsa – Material Design i Android smernice za kvalitet. Na kraju rada opisan je konkretan dizajn i implementacija React Native baziranog korisničkog interfejsa za evaluaciju slike na Android mobilnim uređajima.
PRIMENA TEHNIKA OBFUSKACIJE IZVORNOG KODA NAD PROGRAMSKIM JEZIKOM SOLIDITY
Authors: Trifunović Petar
Published: November 2022

U ovom radu će biti predstavljene mogućnosti primene tehnika obfuskcaije nad izvornim kodom napisanom u Solidity programskom jeziku. Rad uključuje i opis implementacije ovih tehnika izvršene u programskom jeziku Go.
MOGUĆNOSTI PRIMENE ENERGETSKIH ELEKTRONSKIH TRANSFORMATORA
Authors: Đorđević Nikola , Katić Vladimir
Published: November 2022

U radu su predstavljeni konvencionalni i elektronski transformatori i izvršeno je njihovo poređenje, i predstavljena je njihova analiza prema zapremini, težini i ceni. Nakon predstavljanja osnovnih topologija elektronskih transformatora i prikazanih modela za svaku kategoriju topologije, opisana je primena elektronskih transformatora u obnovljim izvorima energije, vučnim sistemima i punjačima električnih automobile. Na kraju su predstavljeni problemi i izazovi budućeg razvoja elektronskih transformatora.
MODELOVANJE I ANALIZA PROPADA NAPONA U MEDITERANSKOJ MREŽI
Authors: Palalić Marijana , Katić Vladimir , Stanisavljević Aleksandar
Published: November 2022

U radu je izvršeno modelovanje i analiza kvaliteta napona u realnoj mreži. Kao primer test mreže korišćena je mediteranska obalska mreža. Ona je modifikovana dodavanjem dve vetroelektrane. Izvršene su simolicaje radi ztvrđivanja uticaja vetroelektrana na kvalitet napona u mreži. Za simulacije korišćen je program DIgSILENT PowerFactory.
VIDEO CHAT APLIKACIJA ZASNOVANA NА WEBRTC PROTOKOLU I STUN/TURN SERVERIMA
Authors: Marić Nikola , Vidaković Milan
Published: November 2022

Predmet rada je omogućavanje audio i video poziva između dve osobe (dva korisnika aplikacije) u realnom vremenu, dakle da se podrži vid komunikacije između fizički odvojenih (udaljenih) mesta na planeti koja nisu iza istog rutera. Način da se to postigne jeste korišćenjem WebRTC protokola kao i STUN/TURN servera koji omogućavaju prenos podataka na daljinu.
PRIMENA KONCEPTA INTERNOG MODELA ZA REGULACIJU STRUJE U OKVIRU POGONA SA ASINHRONIM MOTOROM
Authors: Jarić Milica
Published: November 2022

U ovom radu analizirana je primena koncepta internog modela za regulaciju struje u okviru elektromotornog pogona sa asinhronim motorom. Strujni regulatori bazirani na ovom konceptu predstavljaju alternativu postojećim strukturama sa akcentom ka unapređenju efekta rasprezanja naponskih osa, kao i jednostavnije parametarske sinteze. Kroz simulacije na uprošćenom matematičkom modelu strujnog podsistema naponski napajanog asinhronog motora potvrđene su performanse ovog pristupa.
POREĐENJE BESPLATNIH ALATA ZA VIZUELIZACIJU JAVNIH BLOKČEJN MREŽA
Authors: Farkaš Kristian
Published: November 2022

Ovaj rad predstavlja poređenje, kao i opis besplatnih alata za vizuelizaciju javnih blokčejn mreža. Cilj ovog istraživanja jeste efikasno poređenje nađenih alata, kategorizacija istih, predstavljanje načina i tehnika vizuelizacije javnih blokčejn mreža, ukazivanje na nedostatke i vrline datih alata, kao i utvrđivanje pogodnosti alata za korišćenje. Rad obuhvata i kratak opis blokčejna, pregled stanja u oblasti, kao i tabelarno poređenje datih alata za vizuelizaciju.
HIDRAULIČKO HIDROLOŠKA ANALIZA UTICAJA MOSTOVA NA VELIKE VODE NA PRIMERU NOVOG MOSTA NA RECI TISI
Authors: Šljivar Milica , Kolaković Slobodan
Published: November 2022

Zadatk master rada bio je modeliranje hidrauličkih uticaja novog mosta koji će se nalaziti na reci Tisi, u okviru novoplaniranog autoputa Beograd-Zrenjanin-Novi Sad. Samo modeliranje rađeno je u softverskom paketu HEC RAS. Vršena je simulacija poplavnog talasa iz 2006. godine kako bi se dobili rezultati koji pokazuju mogući uspor koji može nastati usled izgradnje mosta. Proračun je rađen za ustaljeno i neustaljeno tečenje reke Tise.
PLANIRANJE I PRAĆENJE IZGRADNJE SAOBRAĆAJNICE KRALJEVO-MATARUŠKA BANJA PRIMENOM BIM SOFTVERA
Authors: Stanojević Dragana
Published: November 2022

Predmet rada jeste definisanje osnov­nih problema prilikom upravljanja građevinskim projekti­ma i njihovo rešavanje primenom BIM metodologije rada. Objašnjeni su osnovni pojmovi vezani za BIM pristup paraćeni primerima njegove primene u putogradnji. Takođe je praktičnim primerom opisano modeliranje saobraćajnice, a zatim planiranje i praćenje toka izgradnje predmetne deonice primenom BIM softvera.
NAUČENE LEKCIJE PROJEKTA PROŠIRENJA NAPLATNE STANICE PRELJINA NA DRŽAVNOM PUTU IA1 E763
Authors: Lazović Luka
Published: November 2022

Cilj projekta koji je postavljen pred izvođače jeste da se proširenjem naplatne stanice rastere­ti isti objekat saobraćajnih gužvi uz povećanje protoka vozila u jedinici vremena kao i bezbednost, kako učesnika u saobraćaju, tako i ljudi zaposlenih na naplatnoj stanici.
МЕТОДОЛОГИЈА ПРОЈЕКТОВАЊА ОДВОДЊАВАЊА САОБРАЋАЈНИХ ПОВРШИНА НА ПРИМЕРУ ПЕТЉЕ ВЕЛИКА ДРЕНОВА АУТОПУТ Е-761
Authors: Марковић Оливера
Published: November 2022

Предмет овог рада јесте методологија пројектовања одводњавања саобраћајних површина, приказана на примеру петље Велика Дренова која се налази у склопу аутопута Е-761. Обрађене су теоретске основе хидролошке анализе и хидрауличког прорачуна које су неопходне за одводњавање атмосферских вода са саобраћајнице.. За хидраулички прорачун је кориштен софтферски пакет "URBANO CANALIS “.Улазни подаци за прорачун су преузети са сајта Хидрометеоролошког завода Републике Србије док су формуле као и потребни подаци о самом начину пројектовања преузети из Приручника за пројектовање путева (ЈП Путеви Србије).
Overview of Cattle and Small Ruminants Breeding in Bayburt Province
Authors: Yavuz Kani
Published: November 2022

Crop and animal production constitute a large part of the people's livelihoods in Bayburt province. In addition, the province has become one of the important animal husbandry centers of the region due to the fact that it is a transit point between the Eastern Anatolia region and the Black Sea region. But the number of small farms in Bayburt province is still very large, and the number of farms that are members of grower organizations is quite small. In addition, the migration of the young population from villages leads to an increase in the average age of the population engaged in animal husbandry and a decrease in the number of animals that can be raised depending on the labor force. In this review, the general status of cattle and small ruminants livestock in Bayburt province was given and the level of livestock in Bayburt province was revealed with current data.
Molecular Investigation and Phylogenetic Analysis of Ehrlichia canis in Dogs in Siirt, Turkey
Authors: Aslan Çelik Burçak , Çelik Özgür Yaşar , Yılmaz Ali Bilgin , Ayan Adnan , Orunç Kılınç Özlem , Özdemir Ramazan , Oktay Ayan Özge
Published: November 2022

Ehrlichia canis is the primary etiologic agent of canine monocytic ehrlichiosis, a tick-transmitted disease of dogs. The aim of this study is to molecularly investigate the presence of E. canis and to reveal its prevalence in dogs in Siirt province. The animal material of the study is consisted of a total of 82 dogs. A region of the 16S ribosomal RNA gene of E. canis was targeted for PCR amplification. As a result of the conducted Nested-PCR, positivity was detected at the rate of 10.53% (4/38) in male dogs and 13.64% (6/44) in females, and Ehrlichia canis specific bands of size 389 bp were obtained in 10 (12.20%) dogs in total. The phylogenetic tree was constructed with the Maximum Likelihood (MCL) method, The nucleotide sequence was registered in the NCBI GenBank database with access numbers OK331365.1-OK331366. Early detection of the disease by means of hematological, serological, or molecular tests is very important in terms of prognosis. More studies should be performed to determine vector-disease relationships in this region about ticks that vector the disease.
The Production of Pestil (Fruit leather) from Different Hawthorn (Crataegus spp.) Fruits
Authors: Baran Alper , Nadaroğlu Hayrunnisa
Published: November 2022

Pestil is one of the important foods traditionally produced in Türkiye, with high energy, vitamin and mineral content. It is obtained by naturally drying the pulp obtained from different kinds of fruits after mixing it with ingredients such as sugar and flour. In regions where the fruiting period depends on the season, fruit pulp is produced in order to benefit from it in winter. In addition, bioactive components originating from the fruit increase the nutritional value. In this study, the physicochemical and antioxidative properties of the pestil obtained from three different Hawthorn fruits (Crataegus meyeri, Crataegus turkestenica and Crataegus orientalis) known to have positive effects on health were investigated. The results revealed that, depending on the fruit type, pestil samples have high antioxidative properties (IC50: 50.11±0.16-52.1±2.14 mg/mL) due to the high phenol content (39.8±0.16-52.95±1.21 mg GA/g DW). In this context, in the present study, it has been seen that the pestil prepared with the traditional method from three different Hawthorn fruits should be industrially produced as a product for people to access healthy and various foods today.
Policy Recommendations for The Effects of the Covid-19 Outbreak on Seasonal Agricultural Workers: The Case of Türkiye
Authors: Bozdemir Akçil Merve , Bayramoğlu Zeki
Published: November 2022

Impact of Covid-19 pandemic introduced with itself some socio-economic transformation as well as a myriad of problems. Closure of borders, alongside a fall in trade and human mobility brought forward concerns related to the self-sufficiency of nations. Throughout the pandemic outbreak, there was an emerging need for the countries to harness their own manufacturing resources and capacity efficiently to answer soaring demands of domestic market. At this point, visibility of agricultural sector has become foregrounded because of its inherent role in food and nutrition. Particularly speaking; producers who supplied need for seasonal labor from other countries were forced to take instantaneous measures and implement political changes. In Türkiye, since demand for seasonal labor could be met through domestic resources, it was feasible to prevent any failures during manufacturing process. Nevertheless, there were common concerns arising among the public on the measures to take for the work and life conditions of seasonal agricultural workers and required policies to implement. Within the context of this study, research on the discussions, practices, and measures to follow for agricultural sector during Covid-19 pandemic period has been conducted. Analyses have been drawn on the regulation in Türkiye and relevant policies have been suggested.
Effects of Torque Rise on Lugging Ability of Tractors Equipped with Different Gear Boxes
Authors: Kömekçi Fırat , Değirmencioğlu Adnan
Published: November 2022

The objective of this study was to find out the effects of torque rise on lugging ability of tractors. In British terminology, torque rise refers to torque back-up or torque reserve. Torque rise is the amount of torque that the engine can produce above the manufacturers rated amount of torque. It is the percent increase in torque, from rated torque to peak torque. In order to meet the above objective, two tractor reports issued by Nebraska Tractor Test Laboratory were used. Powertrain schemas obtained from three different tractor manufacturers were used and the total transmission ratios from these schemas were calculated. The effect of torque rise on lugging ability of the two tractors with four different gear boxes was studied. From the study, it was concluded that higher torque rise enables the tractor to run in a wide range of torque and the gear box to be chosen should be such that it can match with the engine.
The extent of Vulnerability to Food Insecurity and Household Coping Strategies: Case of Yam Farmers in Ekiti State, Nigeria
Authors: Ibukun Ogunyemi Ayoola , Olutumise Adewale Isaac , Adegoroye Ademola
Published: November 2022

The study analysed the extent of vulnerability to food insecurity and household coping mechanisms among yam farmers in Ekiti State, Nigeria. Cross-sectional data were used for this study with the aid of a well-designed questionnaire. A multistage sampling procedure was used to select 360 respondents. Multinomial logit (MNL) model and Feasible Generalized Least Square (FGLS) method were employed for the data analysis. The results of the FGLS model showed that 49.3% of the households were food secure and experienced low vulnerability to food insecurity. However, 30.23% of them were food insecure and highly vulnerable; they are considered as chronically food-insecure households. Also, the study revealed that 11.01% of the food secure households may be food insecure in the future if necessary attention and intervention are not given by both households and the government. Again, 9.4% of the households that were experiencing food shortage, as at the time of the study, may recover in the future. The findings of MNL revealed that the age of the household head, main occupation, household size, land size, net household income, and membership in a cooperative society were the main significant factors in yam farming households' decision to use coping strategies. As a result, it is recommended that leveraging the potential role of coping mechanisms already used by households during food shortages, and building a comprehensive human capital development, such as education, will be vital policy options to reduce food insecurity.
Isolation of Endophytic Fungi from Algerian Plant Salicornia arabica and Screening of their Antimicrobial Activity
Authors: Sadrati Nouari , Zerroug Amina , Nedjemeddine Benselhoub , Sofiane Hamadi
Published: November 2022

The present study was aimed at isolating endophytic fungi from the Algerian medicinal plant Salicornia arabica and analyzing its antifungal and antibacterial effects. The morphological analysis allowed us to identify endophyte isolates at the genus level as belonging to 8 different genera, Aureobasidium sp., Ulocladium sp., Acremonium sp., Stemphylium sp., Penicillium sp., Aspergillus sp., Phoma sp., and Chrysosporium sp. with frequency percentages 6.7%, 13.3%, 20%, 13.3%, 13.3%, 13.3%, 6.7%, 6.7%, respectively. The antimicrobial activity was caried out using the agar plug diffusion method. The three isolates of the genus Acremonium sp. were highly active against all tested bacteria except Enterococcus faecalis. Comparison of the means of inhibition zones of the active isolates showed that the three fungal isolates of Acremonium were the most active, followed by Chrysosporium sp., Penicillium sp.1, Aureobasidium sp., Stemphylium sp.1, Penicillium sp. .2, and Ulocladium sp.2. The widest zones of inhibition were 22.33 and 20.33mm for Acremonium sp.3, 18.33 and 15.33mm for Aureobasidium sp., 19.33mm for Penicillium sp.1, and 19 and 15mm for Stemphylium sp.1 obtained against Bacillus cereus and Staphylococcus aureus bacteria, respectively. Regarding the antifungal activity, the best inhibitory activity was 80 and 64.70% obtained with the isolate Penicillium sp.2 against Fusarium oxysporum f.sp. ciccri and Fusarium oxysporum f.sp. albedinis, respectively, and of 63.29 and 58% observed against Phytophthora infestans and Fusarium oxysporum f.sp. ciccri, respectively, with the endophytic isolate Aspergillus sp.2. These results indicated the possible prospect of endophytes fungi isolated from Salicornia arabica as a promising resource of antimicrobial compounds and in the quest for the potential starting points for the development of new antibiotics.
Determination of the Most Suitable Method to Predict the Available Sulfur Content in Cotton Growing Soils: Evidences from Aegean Coast, Türkiye
Authors: Erdoğan Bayram Seda , Hakerlerler Hüseyin
Published: November 2022

In this study, conducted on the selection of the most suitable method of determining the available sulfur content of soils where cotton is grown in the Coastal Aegean Region of Türkiye, soil and leaf samples were taken from a total of 40 cotton plantations in five different locations in the Coastal Aegean Region and Gediz Basin. Various physical and chemical characteristics of the soil’s samples, which were taken from a depth of 0-30 cm, were determined, and the available sulfur contents were determined with the use of seven different extraction solutions. The extraction method or methods by which the highest correlation or correlations were obtained between the available sulfur content of the soils and leaf sulfur contents of the plants in the same plantation were assessed as the most suitable methods. According to the results of the study, the highest soil-leaf correlation was obtained by soil extraction with Ca(H2PO4)2 solution, followed, in order, by the NH4OAc, KH2PO4, cold water and NaCl methods. No significant correlation was found between the amounts of sulfur determined by extraction with CaCl2 and KCl solutions and leaf sulfur contents. It was concluded that the most suitable methods for the determination of available sulfur in the soils of the Aegean Coastal Region where cotton is grown were the extraction methods using Ca(H2PO4)2 and NH4OAc solutions.
Economic Analysis and Competitiveness of Cotton Farms in Mali, the Case of Founia District of Kita Province
Authors: Canan Selime , Dansoko İssa
Published: November 2022

In this research, it is aimed to investigate the economic performance of cotton farms and to reveal the profitability and competitiveness of cotton production in Founia district of Kita province. The research data were obtained from the questionnaires conducted with 55 farms determined according to the stratified random sampling method. Policy Analysis Matrix was used to determine profitability and competitiveness in cotton production. The results of the research showed that the farms in Founia county have an average of 10.44 da farm land. Gross production value per farm is $3519.89, agricultural income is $2197.42. According to the result obtained from PAM, private profit of cotton production in Founia district was 58.97 $/ton social profit was 1017.38 $/ton. Within the scope of the research, Specific Cost Ratio (PCR) coefficients of 0.77 and Cost Ratio of Domestic Resources (DRC) of 0.19 obtained from PAM were found. However, according to the Nominal Protection Coefficient on Output (NPCO) (0.30), Nominal Protection Coefficient on Tradable Inputs (NPCI) (0.87) and Effective Protection Coefficient (EPC) (0.20) coefficients, it is seen that the cotton price is lower than the comparable world prices and the producer earns less profit from free trade. Therefore, in the short term, incentive premiums, direct financial support, protection of cotton prices, good communication with farms and extension policies should be implemented. The increase in yield with the introduction of irrigation systems will increase competitiveness.The government and the Compagnie Malienne pour le Développement des Textiles (CMDT) should assist in the leasing and long-term purchase of modern farm machinery, which is one of the fixed capitals, in order to increase productivity.
Phosphorous use efficiency of widely grown potato (Solanum tuberosum L.) varieties in Ethiopia
Authors: Aragaw Momina , Abebe Tesfaye , Amare Tadele , Worku Wallelign
Published: November 2022

This proposal was initiated to assess the response of potato varieties (Dagim, Belete, Gudenie, Jalenie, Zengena, and Ater Ababa) to phosphorus application and use efficiency under screen house with plastic pots. There were seven phosphorous levels (150% recommended (3.9 g P pot-), 125% recommended (3.3 g P pot-), recommended (2.6 g P pot-), 75% of the recommended (2.0 g P pot-), 50% of the recommended (1.3 g P pot-), 25% of the recommended (0.7 g P pot-) and the control) per variety. The experiment was conducted in completely randomized design (CRD) with three replications with a total of 42 treatments at Adet Agricultural research center, Ethiopia. Most parameters studied significantly changed with varieties and P-rates. Belete variety and 2 g P pot-1 showed the highest values in soil available phosphorous (52.6 mg P kg-1 and 49.53 mg P kg-1, respectively,) and Belete variety and 3.9 g P pot1showed highest values in plant phosphorous concentration (3.48 mg g-1 and 3.98 mg g-1, respectively). The highest phosphorous uptake (PAE) (14.81 mg plant-1) was recorded in Belete variety. This variety could be considered as responsive cultivar. The highest phosphorous acquisition efficiency (PAE) (92.35 kg kg-1) was recorded in Belete variety, and phosphorous use efficiency (33.63 and 37.58 mg g-1) was recorded in Dagim and Ater Ababa varieties, respectively. Dagim variety can be used when external phosphorous applications become limited. Evaluation of the existing varieties of potato for their phosphorous use and uptake efficiency could potentially increase the future potato yield without excess P application
Facilitating Solid Waste Handling System in Port Harcourt Cosmopolis
Authors: Emine Awoala Joybel , Harold Ugochukwu Nwosu , Adiamologi Nwika Choice
Published: November 2022

Port Harcourt cosmopolis grappled with a continual rise in municipal solid waste (MSW) generation. The increase is a consequence of an advance in population rise and consumption pattern. The paper reports an approximate valuation and depiction of municipal solid waste with emphasis from questionnaire survey on socio-economic status of the inhabitants in the zones that make up the cosmopolis. The methodology and procedure for this investigation obtained using vehicle selection approach centered on ASTM D5321 standard test method for ascertaining the constituents of municipal solid waste. Specimens were sorted into fourteen waste classifications of paper; 6.22%, pasteboard; 2%, plastic film; 9.05%, dense plastic; 2.73%, glass; 2.3%, iron-based metal; 3.03%, non-iron based metal; 1.13%, putrescibles; 56.3%, textiles; 1.85%, misc-ignitable; 2.83%, non-misc ignitable; 3.35%, E-waste; 2.33%, household waste; 4.88% and fine elements; 2.03%. The outcome shows an average 56.3% of municipal solid waste specimens discovered to be biodegradable. This is suitable for composting activities. Aside biodegradables, there exist, paper glass, dense plastics, and iron-based metals, which are recyclables. This is significant for providing gainful employments to the inhabitants of the cosmopolis. On the contrary, there were about 2.83% of misc-ignitable. This is suitable for energy recovery. There was a variation in specimens of MSW in all the zones that make up the cosmopolis, attributing it to changes in disparity in incomes. It is necessary for government to legalize, recycling and composting activities, which based on the waste management hierarchy process in a manner that ensures environmental sustainability, economic sustainability, and global acceptance.
Prospects of Kiwi Production and Marketing in the Advancement of Household Economy in Dolakha District
Authors: Malla Santoshi , Bista Lal , Sapkota Rojina
Published: November 2022

This study entitled was conducted in 3 places of Dolakha district namely Boach, Jiri and Bigu. The study was conducted during 20thjuly to 6th September 2017. The main aim of this study was to find out whether kiwi farming is improving household economy of people living there (i.e. Boach, Jiri and Bigu) using various tools such as questionnaire, discussion, direct observation and review of literature. A total of 60 households were randomly selected for the study. Both male and female were found to be involved in kiwi cultivation. About 60 percent and 40 percent of respondents were male and female respectively. 20 percent respondent were illiterate, 38 percent people have primary level education, 17 percent were people having secondary and S.L.C. level education respectively, similarly, the respondent completing Inter were 8 percent. Kiwi was the major cash crop in the study area and the widely used variety in the study site was Monti. Agriculture is the major occupation followed by Government job, Business and others. 47 percent were involved in agriculture, 30 percent were involved in government job, 13 percent have Business and 10 percent follow other jobs like (Teaching, Driving, Abroad). Among 60 respondents 50 percent were cultivating kiwi in 1-5 ropani of land and minimum was 12 percent who cultivated kiwi in above 15 ropani area. Training related to kiwi cultivation was also given to the respondent. 47 percent respondents were trained in kiwi cultivation and 53 percent were not trained about it. Training was organized and conducted by DADO and some other organization who were concerned about agriculture. Kiwi was mostly sold to nearest local market by the farmers themselves. Kiwi cultivation was also helping farmers in economic part. The study shows that there is an improvement of household economy and livelihood by kiwi farming.
Alkaline DMSO superoxide and radical scavenging, cupric reducing antioxidant capacity (CUPRAC) and polyphenol contents of aqueous and methanol extract from Achilllea santolinoides L. aerial parts
Authors: Mehlous Soulaf , Amira Smain , Benchikh Fatima , Benabdallah Hassiba , Mamache Walid , Bensouici Chawki , Laouer Hocine , Loucif Karima
Published: November 2022

The genus Achillea (Yarrow)is one of the most important medicinal plants. Nowadays, different medicinal functions of yarrow such as spasmolytic, choleretic, treatment of wounds and anti-inflammatory activities, make it as an important medicinal plant. The purpose of this study was to determine the antioxidant activity of aqueous (AAE) and methanol (AME) extracts from the plant Achillea santolinoides L. (A. santolinoides L.) aerial parts in vitro. Quantitative evaluation of polyphenols, flavonoids and tannins were determined using Folin-Ciocalteu reagent, aluminum chloride (AlCl3) and Bate Smith methods, respectively. Antioxidant activity was carried out using ABTS radical scavenging, alkaline DMSO superoxide radical scavenging and cupric reducing antioxidant capacity (CUPRAC). The obtained results showed that the highest content in total phenolic, flavonoids and tannins was found in the AME with values of 210.78±0.001 µg GAE/mg Dw, 21.18±0.025 µg QE/mg DW and198.73±0.014µg TAE/mg DW, respectively. For the in vitro antioxidant activity, AME had the strongest ABTS and DMSO alkaline radical scavenging activity (IC50= 6.74±0.16 µg/mL and 15.13±0.92 µg/mL, respectively) and the CUPRAC reducing with A0.50 of 76.56±2.35 µg/mL. The results of the present study confirm the use of the genus Achillea in the treatment of various diseases as a powerful antioxidant.
Evaluation of The Spirulina (Arthrospira platensis Gomont) Antimicrobial Activity
Authors: Bencheikh Amor , Mamache Walid , Gharzouli Asma , Kouachi Ahlem , Khadidja Haif , Daichi Meriem Barkahoum , Rouag Noureddine
Published: November 2022

The present work was carried out to enhance biomass production of Spirulina (Arthrospira platensis Gomont) in a modified medium and to investigate “in vitro” its ability to produce antimicrobial substances against pathogenic bacteria and phytopathogenic fungi. The antibacterial activity was evaluated by the solid medium diffusion method on two pathogenic bacteria (Bacillus cereus & Klebsiella sp.), And the antifungal activity was evaluated on three phytopathogenic fungi (Alternaria solani, Cladosporium sp., Fusarium culmorum). The antibacterial test showed that the aqueous extract produced by S. platensis was more active against Gram-positive than on Gram-negative bacteria, the highest antibacterial activity was recorded against Bacillus cereus. Moreover, the Antifungal test showed that the aqueous extract was active against all three tested fungi and the highest antifungal activity was recorded against F. culmorum with over 90% inhibition of mycelial growth. The results of this research proved that cyanobacteria could be a good source for the production of antimicrobial agents which could be effective when compared with contemporary antimicrobial compounds and it can be used in the Biocontrol of several plant fungal diseases.