bluuebunny/crossref_metadata_2025 huggingface dataset:
Müşteri Mağaza Seçim Kriterlerinin Müşteri Tatmini Üzerindeki Etkileri
Authors: BAŞKOL Melih
Published: May 2021

Bu çalışmanın amacı mağaza seçim kriterlerinin müşteri tatmini üzerindeki etkilerini araştırmaktır. Literatürde bugüne kadar bu konuda pek çok çalışma yapılmıştır. Perakende işletmeciliğinin dinamik ve değişken doğası mağaza seçimi ve mağaza müşterisi olma kriterlerinin de değişmesine neden olmaktadır. Bu nedenle bu konuda yapılan çalışmalar günümüzde de devam etmektedir. Bu çalışmada ürün çeşitliliği, erişim, tatmin, hizmet kalitesi, güven, dizayn kriterleri hem literatür hem de yapılan pilot çalışma sonucunda mağaza seçim kriterleri olarak belirlenmiştir. Araştırma için verilerin ana kütlesi Bartın ili nüfusu olarak ele alınmıştır. Örneklimin ana kütleyi en iyi biçimde temsil edebilmesi için 550 anket Bartın ilinde yüz yüze olarak uygulanmıştır. Toplam olarak analize uygun olarak 533 anketin geri dönüşü sağlanmıştır. Araştırma sonucunda bu kriterlerin müşteri tatmini üzerinde olumlu etkilere sahip olduğu ortaya çıkmıştır.
Feminist İktisadın Türkiye’deki Seyr-ü Seferi ve Serencamı: Lisansüstü Tezler Üzerinden Bir Okuma
Authors: IŞIK Ebru , SERDAROĞLU Ufuk
Published: May 2021

Bu çalışmanın amacı, feminist iktisadın seyr-ü seferini ve serencamını 1990-2020 yılları için lisansüstü tezler üzerinden okumaktır. Bu doğrultuda, değerlendirmeye alınan iki yüz yüksek lisans ve doktora tezi, hangilerinin feminist iktisadın özelliklerini taşıdığını belirleyebilmek amacıyla, biçim ve içerik yönünden detaylı olarak irdelenmiştir.
Gamma Knife for Recurrent Ameloblastoma with Cavernous Sinus Metastasis: A Case Report
Authors:   Department of Radiation Oncology, Third Medical Center of Chinese PLA General Hospital, Beijing, China, B He , S Yang ,   Department of Radiation Oncology, Third Medical Center of Chinese PLA General Hospital, Beijing, China, D Li ,   Department of Radiation Oncology, Third Medical Center of Chinese PLA General Hospital, Beijing, China
Published: May 2021

Ameloblastoma (AME) is a rare, benign intraosseous progressively growing odontogenic tumor. Due to its invasive behavior, the rate of recurrence is high. Recurrent AME tends to transform malignantly and metastatic. Lung is the most common sites of AME metastasis, followed by lymph nodes. Here we present a case of AME with intracranial metastasis. A 26-year-old woman who had recurrent AME in the left jaw. After the second resection, AME metastasis to the cavernous sinus, sellar and suprasellar regions. Because the metastatic tumor was unresectable, she received Gamma Knife instead. After 3 years follow-up, the tumor was well controlled. In conclusion, Gamma Knife can be a feasible option for unresectable Oligometastatic AME.
A Switchable Sensor for Cu2+ and Zn2+ Based on Xanthene Moietymaking a Path for a Complex Molecular Encryption System Based on Color and Fluorescent Change
Authors: Raj Amar , Gupta Ankur
Published: May 2021

Colorimetric and fluorescent detection methods for metal analytes has become a powerful tool for qualitative and quantitative analysis in the last decade due to their immediate output, cost-effectiveness, specificity/selectivity, zero interference, high detection limit, and application in practical samples. Sensing Cu2+, Ni2+, or Zn2+ like analytes gained a lot of attention due to their significance in biological, medical, and environmental purposes. To account for this purpose, we synthesized and designed a colorimetric, fluorescent off-on, and reversible chemosensor EYM having xanthene as a signaling moiety and 4-carbamoyl-3-Butenoic acid as a receptor moiety. The EYM probe is then screened with Al3+, V3+, Na+, K+, Fe3+, Mg2+, Ca2+, Fe2+, Co2+, Zn2+, Cd2+, Hg2+, Mn2+, Co3+, Pb2+, Cu2+, Pd2+, and V4+ in DMSO: H2O (4:1) solvent system where EYM shows absorbance change specifically for Cu2+ at 541nm changing from colorless to dark pink. The detection limit and association constant of the EYM probe for Cu2+ is 78.5nM and (6.013-5.947)´109 M-1, respectively. The coordination of Cu2+ with EYM is in (1:2: Ligand: Metal) stoichiometric ratio. The immediate saturation time (~2 sec) and low detection limit (78.5nM) of the EYH probe give competitiveness over other sensors in practical applicability in real-life samples detection of Cu2+. Not only this, the EYM sensor can switch from mono to bi to tri-functional sensor for Cu2+, Ni2+, and Zn2+ with the stimuli of water in the DMSO solvent. The EYM shows specific abnormal fluorescent enhancement in contact with Zn2+ in DMSO solvent. The detection limit for Zn2+ is 79nM same as Cu2+ in a colorimetric assay. Switchable sensing is utilized to make complex molecular LOGIC GATE operations, including password-protected molecular encryption systems.
Preparing for translocations of a Critically Endangered petrel through targeted monitoring of nest survival and breeding biology
Authors: Fischer JH , Wittmer Heiko , Taylor GA , Debski I , Armstrong DP
Published: May 2021

The population of the recently-described Whenua Hou diving petrel Pelecanoides whenuahouensis comprises c. 200 adults that all breed in a single 0.018 km2 colony in a dune system vulnerable to erosion. The species would therefore benefit from the establishment of a second breeding population through a translocation. However, given the small size of the source population, it is essential that translocations are informed by carefully targeted monitoring data. We therefore modelled nest survival at the remaining population in relation to potential drivers (distance to sea and burrow density of conspecifics and a competitor) across three breeding seasons with varying climatic conditions as a result of the southern oscillation cycle. We also documented breeding phenology and burrow attendance, and measured chicks, to generate growth curves. We estimated egg survival at 0.686, chick survival at 0.890, overall nest survival at 0.612, and found no indication that nest survival was affected by distance to sea or burrow density. Whenua Hou diving petrels laid eggs in mid October, eggs hatched in late November, and chicks fledged in mid January at c. 86% of adult weight. Burrow attendance (i.e. feeds) decreased from 0.94 to 0.65 visits per night as chicks approached fledging. Nest survival and breeding biology were largely consistent among years despite variation in climate. Nest survival estimates will facilitate predictions about future population trends and suitability of prospective translocation sites. Knowledge of breeding phenology will inform the timing of collection of live chicks for translocation, and patterns of burrow attendance combined with growth curves will structure hand-rearing protocols. A tuhinga whakarāpopoto (te reo Māori abstract) can be found in the Supplementary material.
Shared Predictors of Academic Achievement in Children with ADHD: A Multi-Sample Study
Authors: Carrasco Kelly , Chuang Chi-Ching , Tripp Gail
Published: May 2021

Objective: To identify common and shared predictors of academic achievement across samples of children with ADHD. Method: Two clinically referred samples from New Zealand (1 n = 88, 82% boys; 2 n = 121, 79% boys) and two community samples from the United States (3 n = 111, 65% boys; 4 n = 114, 69% boys), completed similar diagnostic, cognitive and academic assessments. Hierarchical multiple regression analyses identified significant predictors of word reading, spelling, and math computation performance in each sample. Results: Entered after IQ, semantic language, age at testing, and verbal working memory emerged as consistent predictors of achievement across academic subjects and samples. Visual-spatial working memory contributed to variance in math performance only. Symptom severity explained limited variance. Conclusions: We recommend evaluations of children with ADHD incorporate assessments of working memory and language skills. Classroom/academic interventions should accommodate reduced working memory and address any identified language weaknesses.
A EDUCAÇÃO COMO REPRODUTORA DA DESIGUALDADE SOCIAL
Authors: Macedo de Miranda Palloma Valéria
Published: May 2021

Este artigo tem como principal objetivo analisar e discutir questões acerca de como à educação muitas vezes acaba por contribuir para o aumento das desigualdades sociais. Desse modo, através dessa análise pretende-se ainda destacar as contribuições e críticas do pensamento de Pierre Félix Bourdieu, Paul- Michel Foucault e Karl Marx sobre os problemas sociais que permeiam a sociedade desde o século XIX até os dias atuais e muitas vezes são fortalecidos pelos sistemas educacionais.
Pengaruh model PBL terhadap kemampuan pemahaman matematis ditinjau dari KAM siswa
Authors: Rifa'i Agus
Published: May 2021

Pemahaman  matematis  di  MTs Al Ulya Al Mubarok Kota Serang masih  sangat rendah, terutama dalam pemahaman materi bilangan bulat dan pecahan. Berkaitan dengan hal ini, perlu adanya inovasi dalam penyampaian materi pembelajaran, salah satunya dengan menggunakan model  pembelajaran yang mendorong peserta didik untuk lebih aktif dalam proses belajar dengan ini kita perlu menggunakan model pembelajaran, PBL merupakan sebuah model pembelajaran yang inovatif yang dapat memberikan kondisi belajar aktif peserta didik untuk memecahkan sebuah masalah. Penelitian ini bertujuan untuk mendeskripsikan efektifitas penggunaan model PBL dalam  meningkatkan pemahaman matematis siswa MTs. Penelitian ini berjenis quasi experimen dengan menggunakan rancangan penelitian the randomized pretest-posttest control group design. Adapun instrument yang  digunakan untuk mengukur pemahaman adalah  tes  yang  terdiri  dari  soal-soal uraian. Tes diberikan sebelum dan setelah  pembelajaran,  lalu  dianalisis   dengan  menggunakan anova. Hasil penelitian menunjukkan bahwa model PBL lebih efektif dalam  meningkatkan pemahaman matematis  siswa.  Hal  ini  terlihat  dari  hasil ata-rata nilai posttes kelompok eksperimen adalah 75,33, sedangkan rata-rata  nilai posttes kelompok  kontrol  adalah  71,07.
Menumbuhkan Kemampuan Representasi Matematis dan Metakognitif Siswa Kelas XIII SMP Menggunakan Model CORE (Connecting, Organizing, Reflecting, dan Extending)
Authors: Fadilla Fany , Purwaningrum Jayanti Putri
Published: May 2021

Tujuan penelitian ini adalah menumbuhkan kemampuan representasi matematis dan metakognitif siswa kelas VIII SMP melalui model CORE. Penelitian yang kami lakukan dengan mengkaji, mengaitkan karakteristik, dan indikator kemampuan representasi dan metakognitif. Pada dasarnya representasi matematis memiliki tiga indikator yang lebih abstrak dan memiliki tingkat kemampuan representasi pemecahan masalah yang lebih tinggi, yaitu representasi bahasa, representasi kata/ungkapan matematika dan representasi kata/teks tertulis. Fakta dilapangan membuktikan bahwa hasil kemampuan representasi matematika di Indonesia masih banyak yang kurang memuaskan. Jika strategi pada representasi yang digunakan sesuai dengan masalah, masalah yang dianggap kompleks menjadi lebih sederhana. Oleh karena itu, pemilihan model representasi memiliki pengaruh yang besar terhadap keputusan kebijakan dalam penyelesaian masalah. Selain keterampilan representasi pada penelitian ini juga mengkaji mengenai metakognitif,  Metakognisi adalah pemikiran seseorang tentang pikirannya sendiri, termasuk pemahaman tentang hal-hal yang diketahui. Metakognisi meliputi pengetahuan metakognitif dan pengalaman atau regulasi metakognitif. Sehingga dari penelitian kajian pustaka ini dapat disimpulkan bahwa dari beberapa fakta dilapangan yang telah diteliti oleh peneliti lain, kemampuan representasi matematis dan metakognitif siswa masih banyak yang belum memuaskan dan beberapa siswa masih belum dapat menumbuhkan kemampuan representasi maupun metakognitif  dalam pembelajaran. Dari analisis data dapat disimpulkan bahwa model CORE (Connecting, Organizing, Reflecting dan Extending) dapat menumbuhkan kemampuan representasi matematik dan metakognitif siswa kelas VIII SMP.
PENINGKATAN KOMPETENSI GURU DLAAM MENYUSUN RENCANA PEMBELAJARAN KURIKULUM 2013 MELALUI SUPERVISI AKADEMIK DI SD 1 GLAGAHWARU
Authors: Sagi Sagi
Published: May 2021

PermasalahandalamPenelitianTindakan Sekolah (PTS) ini adalah rendahnya kompetensi guru dalam menyusun Rencana Pembelajaran Kurikulum 2013. Tujuan penelitian ini adalah untuk meningkatkan kompetensi guru dalam menyusun RPP Kurikulum 2013 melalui supervisi akademik di SD 1 Glagahwaru.Subjekdalampenelitian ini adalah  semua guru di SD 1 Glagahwaru Undaan Kudus. Penelitian dilaksanakan selama empat bulan yaitu pada bulan Agustus sampai Desember 2018. Kegiatan penelitianmeliputi (1) tahap persiapan proposal, (2) membuat instrumen, (3) pelaksanaan supervisi akademik  secara kelompok (Penataran tingkat lokal) dalam siklus I dansupervisi akademik berupa pendampingan dalam siklus II, (4) menganalisis data, (5) pembahasan, dan (6) menyusun laporan. Penelitian Tindakan Sekolah (PTS) termasuk jenis penelitian kuantitatif menggunakan Analisis Deskriptif Komparatif dengan membandingkan hasil kondisi awal (prasiklus) dengan hasilsiklus I dan siklus II. Supervisi dilakukan dengan teknik pembimbingan dan pendampingan.Hasil penelitian menunjukkan bahwa supervisi akademik dapat meningkatkan kompetensi guru dalam menyusun RPP Kurikulum 2013 di SD 1 Glagahwaru dari kondisi awal dengan nilai rata-rata 71,91 atau sebesar 36,36% dalam kategori cukup. Pada siklus I nilai rata-rata 75,18 atau sebesar 63,64% dalam kategori cukup baik. Ada peningkatan dari prasiklus ke siklus I sebesar 27,28% untuk RPP. Pada siklus II nilai rata-rata 80,82 atau sebesar 81,82% dalam kategori baik. Selain itu supervisi akademik dapat meningkatkan kemampuan guru SD dalam menyusun RPP dari siklus I ke siklus II sebesar 18,18% untuk RPP.Berdasarkanhasil penelitian dapat disimpulkanbahwasupervisiakademikdapat meningkatkan kompetensi guru dalam menyusun Rencana Pembelajaran Kurikulum 2013di SD 1 Glagahwaru Undaan Kudus.
PELAKSANAAN PENDIDIKAN SENI DI SEKOLAH DASAR KECAMATAN SEMARANG SELATAN KOTA SEMARANG
Authors: Prasetyo Singgih Adhi , Sundari Riris Setyo
Published: May 2021

Seni (termasuk di dalamnya seni tari) telah memasuki dunia pendidikan dan memiliki fungsi tersendiri bagi dunia pendidikan. Pendidikan seni bertujuan untuk: (1) memperoleh pengalaman seni berupa pengalaman apresiasi seni dan pengalaman ekspresi seni, (2) memperoleh pengetahuan seni, misalnya teori seni, sejarah seni, kritik seni, dll (Rusyana, 2000: 7). Pengalaman seni yang diperoleh siswa baik itu pengalaman apresiasi maupun ekspresi seni, merupakan hal yang sangat dibutuhkan bagi siswa. Penelitian ini bertujuan untuk mengetahui pelaksanaan pendidikan seni di SD Kecamatan Semarang Selatan. Penelitian ini menggunakan metode kualitatif, dengan metode pengumpulan data yaitu wawancara, observasi, dan dokumentasi. Teknik keabsahan data dalam penelitian ini menggunakan teknik triangulasi metode. Teknik analisis data mengunakan penyajian data, reduksi data, dan penarikan kesimpulan. Hasil dari penelitian ini adalah bahwa pendidikan seni dilaksanakan di sekolah, minimal dalam kegiatan intrakurikuler. Pelaksanaan pendidikan seni dalam kegiatan intrakurikuler, dibimbing langsung oleh guru kelas masing-masing. Pada kegiatan ekstrakurikuler, kegiatan dibimbing oleh guru ekstrakurikuler sesuai dengan bidang masing-masing.
Examining the Use of Robots as Teacher Assistants in UAE Classrooms: Teacher and Student Perspectives
Authors: Alhashmi Mariam , Mubin Omar , Bassam Baroud Rama
Published: May 2021

Aim/Purpose: This study sought to understand the views of both teachers and students on the usage of humanoid robots as teaching assistants in a specifically Arab context.

Background: Social robots have in recent times penetrated the educational space. Although prevalent in Asia and some Western regions, the uptake, perception and acceptance of educational robots in the Arab or Emirati region is not known.

Methodology: A total of 20 children and 5 teachers were randomly selected to comprise the sample for this study, which was a qualitative exploration executed using focus groups after an NAO robot (pronounced now) was deployed in their school for a day of revision sessions.

Contribution: Where other papers on this topic have largely been based in other countries, this paper, to our knowledge, is the first to examine the potential for the integration of educational robots in the Arab context.

Findings: The students were generally appreciative of the incorporation of humanoid robots as co-teachers, whereas the teachers were more circumspect, expressing some concerns and noting a desire to better streamline the process of bringing robots to the classroom.

Recommendations for Practitioners: We found that the malleability of the robot’s voice played a pivotal role in the acceptability of the robot, and that generally students did well in smaller groups with the robot; teachers expressed concern that the children would become easily distracted should too many children be privy to one robot.

Recommendation for Researchers: Our results provide valuable recommendations for researchers in the area. We believe, there needs to be continued efforts in devising suitable methodological assessment tools to evaluate student and teacher attitudes in the classroom particularly in the Arab world. We also advise researchers to focus on providing adaptive behavior in the context of educational robots. There are different distinct areas that need further clarifications and study based on our review.

Impact on Society: On a wider scale, the findings of this paper have a huge implication for the educational technology as the integration of robotics in education is one of the emerging trends in the area, particularly in the UAE. This study allows to answer questions related to attitudes and perceptions of both teachers and students toward educational robots in the UAE.

Future Research: Possible avenues of research in the area include focusing on the adaptive and natural behavior of robots in disciplines other than Mathematics as a means of successfully integrating robots in the classroom.
Green Preservation of Goatskin to Deplete Chloride from Tannery Wastewater
Authors: Hashem Md. Abul , Payel Sofia , Hasan Mehedi , Momen Md. Abdul , Sahen Md. Sahariar
Published: May 2021

Globally, in wet-salting preservation, common salt (sodium chloride, NaCl) is generally practiced for the raw animal skin which emits a huge amount of chloride-containing wastewater affecting groundwater quality, human and plant life. Chlorides in tannery wastewater encourage salt-free or less-salt preservation methods of raw skin. In this study, an alternative salt-free ‘green method’ has been described for goatskin preservation with rapidly growing obnoxious weeds Sphagneticola trilobata leaf. The ‘green leaf paste’ was applied on the flesh side of the raw goatskin and compared with conventional wet-salting (50% NaCl) method for 28 days. Different parameters of both sample like moisture, nitrogen, hydrothermal stability, and bacterial growth were periodically assessed and compared. Shoe upper leather was produced from both preserved goatskins. After comparing with standards, the physical properties like tensile strength, elongation at break, bursting strength satisfied the standard requirements. SEM images showed no deterioration to the fiber structure of both samples. Moreover, the suggested method reduces the pollution loads: chloride, total dissolved solids, biochemical oxygen demand, and chemical oxygen demand by 98.04%, 92.9%, 90.2%, and 85.5%, respectively. The overall assessment recommends that the salt-free ‘green method’ utilizing S. trilobata leaf paste could be an attractive system over the conventional wet-salting method. Doi: 10.28991/HIJ-2021-02-02-03 Full Text: PDF
Study of Effect of Size on Iron Nanoparticle by Molecular Dynamics Simulation
Authors: Kien Pham Huu , Khamphone Yiachu , Trang Giap Thi Thuy
Published: May 2021

We use the molecular dynamics simulation to study iron nanoparticles (NPs) consisting of 4000, 5000, 6000 atoms at temperatures of 300 and 900 K. The crystallization and microstructure were analyzed through the pair radial distribution function (PRDF), the potential energy per atom, the distribution of atom types and dynamical local structure parameters , where x is the bcc, ico or 14. The simulation indicated that amorphous NP contains a large number of ico-type atoms that play a role in preventing the crystallization. Amorphous NP is crystallized through transformations of f14 > 0 and fbcc = 0 type to bcc-type atoms when it is annealed at 900 K upon 40 ns. The growth of crystal clusters happens parallel with changing its microstructure. The behavior of the crystal cluster resembles the nucleation process described by classical nucleation theory. Furthermore, we found that the amorphous NP has two parts: the core has the structure similar to the one of amorphous bulk, in while the surface structure is more porous amorphous. Unlike amorphous NP, the crystalline NP also has three parts: the core is the bcc, the next part the distorted bcc and the surface is amorphous. Amorphous and crystalline NPs have part core which has the structure not depend on size. Doi: 10.28991/HIJ-2021-02-03-01 Full Text: PDF
The Performance of the Agri-food Sector in the Recent Economic Crisis and during Covid-19 Pandemic
Authors: Mizik Tamás
Published: May 2021

Crises impact every sector of the economy; however, the magnitude of that impact varies between the different sectors. The agri-food sector-related lessons learned from the last two crises (global financial crisis in 2008, and the sanctions against Russia in 2014) are that international trade becomes lower and commodity prices rise. This article analyzes the performance of the Hungarian agri-food sector during the last three crises based on international and Hungarian datasets. The results show that impacts depend on many factors, such as the type of the agri-food products (raw material vs. processed product, perishable vs. non-perishable goods, etc.) or the depth of trade integration. It should be noted that Hungary is heavily integrated into the EU’s common market, its major trade partners are the other member states. At the commodity level, the share of raw materials is higher on the export side (e.g. cereals) compared to the import side (e.g. meat products). Based on the results, the impacts of the COVID-19 pandemic were different from the two previous crises. Despite the difficulties in transport, Hungarian exportation expanded and resulted in an increasing trade surplus, while international commodity prices remained stable. The identification of the different impacts of the coronavirus compared to the other two crises is the major finding of the article. Doi: 10.28991/HIJ-2021-02-03-02 Full Text: PDF
Dış Borç ve Ekonomik Büyüme İlişkisi: Kamu ve Özel Sektör Dış Borçları Açısından BRICS-T Ülkeleri Analizi
Authors: YILDIZ Fazlı , SAĞDIÇ Ersin Nail
Published: May 2021

Bu çalışmada, 1997-2019 yılları arasında BRICS-T ülkelerinde dış borç bileşenlerinin (Kamu ve özel sektör dış borçları) ekonomik büyüme üzerindeki etkisi incelenmiştir. Değişkenler arasındaki uzun ve kısa dönemli ilişki Havuzlanmış Ortalama Grup (PMG) Tahmincisi ile incelenmiştir. PMG tahmincisinden elde edilen sonuçlara göre tüm ülkeler bazında toplam dış borç, kamu dış borcu ve özel sektör dış borcunun ekonomik büyüme üzerinde uzun dönemde negatif etki gösterdiği tespit edilmiştir. Ayrıca, ekonomik büyüme üzerinde en yüksek olumsuz etkiye sahip borç bileşeni kamu dış borçlarıdır. Araştırmanın ampirik sonuçları, borçluluk düzeyi yüksek olan ülkelerin ekonomik büyüme olanaklarının kısıtlanacağını savunan “Borç Fazlası Hipotezi” ile uyumludur.
EVA: Economic Value Added
Authors: Armendáriz Lasso Enrique
Published: May 2021

Es importante conocer todas las técnicas y herramientas que nos permitan estar al tanto de la evolución de nuestra empresa, los resultados de la gestión realizada por todo el personal, mirar si los esfuerzos y cambios que se hacen, tienen o no efectos en la rentabilidad o utilidad del negocio que es realmente lo que se busca. EVA por sus siglas en ingles “Economic Value Added” o Valor Económico Agregado por su significado en español, es una herramienta que a diferencia de otras permite evaluar la gestión gerencial teniendo en cuenta los resultados económicos de una empresa. El EVA permite comparar la rentabilidad obtenida con el costo de los recursos gestionados para conseguir esta rentabilidad. Los resultados indican que los accionistas prefieren invertir en aquellas empresas que no sólo muestran una mejora en su desempeño de manera sostenida, sino también muestran una mejora relativa en sus medidas de rendimiento.
Estudio del Potencial Acuícola del cantón Milagro
Authors: Domingo Avila Jose , Fernandez Ronquillo Mario
Published: May 2021

En el pasado, muchas inversiones en acuicultura se han hecho sin evaluar correctamente las variables de producción, mercado y rentabilidad, lo cual podría haber evitado inversiones que a primera vista parecían rentables, pero que con el tiempo resultaron tener problemas, por no haber hecho un correcto estudio de factibilidad técnico, económico y de mercado. Debido al sostenido crecimiento de las exportaciones acuícolas y a su mayor participación dentro de las actividades productivas del Ecuador, surge la necesidad de realizar proyectos de inversión. Este trabajo además de servir para este fin específico puede ser guía para otros posibles inversionistas interesados en similares proyectos, brindándoles una herramienta que sirva para satisfacer su orientación hacia dichas actividades y como fuente de estudio. En afán de diversificar productos de exportación no tradicionales e incentivar su consumo se decidió presentar un proyecto enmarcado a la producción acuícola; estudiando los peces nativos del Litoral ecuatoriano que posean cualidades y perspectivas de desarrollo. El proyecto debe realizarse en zonas que cumplan los parámetros de suelo, agua, etc. conocidas como “Granjas Acuícolas”. El presente trabajo desarrolla un estudio del Potencial Acuícola del cantón Milagro para aprovechar sus recursos en proyectos de producción y comercialización
Utilization of Blast Furnace Slag for Immobilization of Copper Ions from Solution
Authors: MUCHA Martin , BLÁHOVÁ Lenka , PEŠOVÁ Karolína , JUŘICA Tomáš , KOLNIČENKO Dimitrij
Published: May 2021

Disposal of wastes containing metal ions such as Cu(II) ions is serious problem nowadays. Various materials are utilized for thepurpose of immobilization of Cu(II) ions. Attractive type of material is represented by slags – waste from the metallurgical industry.Raw and alkali-activated blast furnace slag were studied for the purpose of immobilization of Cu(II) ions from the aqueoussolution and for disposal of Cu(II) containing wastes. Slags were saturated by Cu(II) ions. Amount of Cu(II) deposited on the rawslag was 6.35 ± 0.12 mg/g and amount deposited on the alkali-activated slag was 151.37 ± 0.95 mg/g. The saturated materialswere thermally treated at 100, 500, and 1000°C. The thermal treatment leads to the slight structural changes in the case of rawslag and to the significant structural changes in the case of alkali-activated slag. Cu(II) ions probably incorporate to the matrix ofmaterials. The materials based on alkali-activated slag exhibit higher stability to the leaching of Cu(II) ions compared to raw slagbased materials when only 0.13% of the total immobilized amount of Cu(II) ions was released to the solutions during the leachingexperiment in the case of alkali activated slag compared to 12% in the case of raw slag. The higher temperature of treatment leadsto more stable material in the case of both initial slags. The studied materials are less stable under the acidic conditions in comparisonwith the neutral and alkaline conditions. Alkali-activated blast furnace slag could be promising material for the Cu(II) ionsimmobilization and for the safe disposal of Cu(II) containing wastes.
Recovery of Nutrients from Wastewater via Electrodialysis
Authors: CALÁBKOVÁ Katrin , ČERVENKOVÁ Michaela
Published: May 2021

The need to treat wastewater in a sustainable way to minimalize contamination and maximize the recovery of nutrients is widelyrecognized. The focus is mainly on the removal and recovery of nutrients because of eutrophication problems in receiving waters,limitations of mining resources and high costs affiliated with nutrient production. Removal of nutrients is also a growing problemfor water authorities, as authorities often tighten standards of discharged waters to avoid unnecessary discharge of nutrients intowater bodies.The universally used technologies for nitrogen and phosphorus removal involve biological nitrification and denitrification and metalsalt precipitation. However, applying these technologies nutrients are made unrecoverable for fertilizing. Electrodialysis (ED) isa membrane process capable of concentrating and separating ions from wastewater. Thanks to the applied current, the migration ofions occurs, and ions are concentrated in the concentrate solution. Laboratory scale ED showed the potential of nutrient recoveryfrom wastewater sources.In this study, nutrients were recovered in concentrate solution from wastewater sludge liquid discharge by using electrodialysis.Calcium and sodium values in concentrated solution increased 10 times, values of potassium and chloride 5 times. The amount ofammonia nitrogen raised from 60 mg/l to 1700 mg/l. The concentrate enriched by nutrients may be used in further processes, e.g.phosphorus and ammonia nitrogen can be precipitated into the form of struvite.
Analysis of Distribution of Secondary Minerals and their Associations on The Surface of Diamonds and in Derrivative Products of Metasomatically Altered Kimberlites
Authors: DVOICHENKOVA Galina , CHANTURIYA Valentin , MOROZOV Valery , PODKAMENNY Yury , KOVALCHUK Oleg
Published: May 2021

The theoretical and experimental studies resulted in establishing regularities in the distribution of secondary minerals and theirassociations in metasomatically altered diamond-bearing kimberlites and products of their processing.Based on integrated mineralogical research, it was found out that the composition of the altered kimberlites and the fine-dispersedclayey slurries formed during their processing constituted the basis of hydrophilic formations on the surface of diamond crystals notrecovered by the methods of grease and froth separation. Particles of these minerals concentrate in fine-dispersed slurry productsof kimberlite ore processing, interact with the crystal surface, reduce their hydrophobic properties and, accordingly, recovery inprocesses of grease and froth separations into concentrates.
Sources of Magnetic Particles from Air Pollution in Mountainous Area
Authors: KANTOR Pavel , RACLAVSKA Helena , MATYSEK Dalibor , RACLAVSKY Konstantin , SVEDOVA Barbora , KUCBEL Marek
Published: May 2021

Measurement of magnetic susceptibility of topsoil represents a very useful tool for the detection of atmospherically depositedmagnetic particles. The samples of forest soils from the Moravian-Silesian Beskydy Mountains (the Czech Republic) were used foridentification of emissions sources of particles with magnetic ordering. Magnetic susceptibility was measured at bulk samples ofgrain size class under 2 mm. Microanalysis using electron microscope with an energy dispersive X-ray spectrometer was used forthe determination of particles in the magnetic fraction. The samples of dust from the sintering plant of the Iron Works in the townof Třinec were analysed. The values of magnetic susceptibility of forest soils in the Třinec region are increased. In the relatively nearvicinity of the industrial area, the average value for Javorový Mount was 7.90×10-6 m3/kg, for Ostrý Mount it was 6.69×10-6 m3/kg. It was proved that they were higher than the average values from the Beskydy Mountains (4.64×10-6 m3/kg). The concentrationsof lead and magnetic susceptibility in soils showed significant correlation dependence (rs = 0.85). The iron and steel industryrepresent the primary source of the pollution load in forest soils of the studied area. Statistically, significant dependences betweenthe organic matter content and the lead and zinc concentrations as well as between the magnetic susceptibility values and the ironconcentrations in forest soils were found. It was confirmed that the airborne particles are deposited on vegetation and accumulatedin the organic horizon of forest soils.
Improving the Efficacy and Efficiency of the Environmental Management System in the Romanian Powerplants on Coal – the Condition of the Environmental Performance
Authors: CSIMINGA Diana , MANGU Sorin , ILOIU Mirela , MATEI Aronel
Published: May 2021

After a decade-long evolution, the use of coal for energy production is growing again. Carbon is still an important source of energyin Europe, covering about one-fourth of electricity production. There are plans to open around 50 new coal-fired power plants.But the continued use of coal has a price, we pay all, mainly with our health can be affected by excessive environmental pollutionToday more and more emphasis on the concept of „green economy” that should be reflected in improving people’s lives througheffective management of environmental issues and reducing environmental risks Thus, through the present paper we aim to highlightthose aspects that would allow the improvement of the environmental performance of coal-fired power plants in Romania byimproving the efficiency and effectiveness of the Environmental Management System (EMS) as a component of the Integrated ManagementSystem along with the Quality, Health and Safety Management System . We start from the premise that the developmentand implementation of an effective and efficient environmental management system (EMS) becomes a priority for all companies inthe field , especially since their activities based on coal burning , are considered among the most polluting.
Эффективность гидроакустического рыбозащитного устройства, установленного у Кокаральской плотины Малого Аральского моря
Authors:   КазНУ имени аль-Фараби, Казахстан, Алматы 050040, пр. аль-Фараби, 71, Шарахметов1 С. , Баракбаев Т. ,   КазНУ имени аль-Фараби, Казахстан, Алматы 050040, пр. аль-Фараби, 71, Адаев Т. ,   ТОО «Научно-производственный центр рыбного хозяйства», Аральский филиал, Кызылорда 120014, ул. Желтоксан, 46
Published: May 2021

Целью данной статьи является исследование эффективности работы гидроакустического рыбозащитного устройства (РЗУ), экспериментально установленного у Кокаральской плотины Малого Аральского моря. В период с 27 августа по 5 сентября 2020 г. для определения эффективности произведен экспериментальный и контрольный отлов рыб с использованием ставных рыболовных сетей с ячеями от 30 до 60 мм. Эффективность гидроакустического РЗУ оценивалась по результатам попадания рыб и численности по видам на установленных сетях при выключенном и включенном состоянии РЗУ. Наблюдение за поведением и распределением рыб выполнялось с использованием эхолота. По численному соотношению разница вылова составила: при выключенном состоянии РЗУ – 173 экз., при включенном РЗУ – 94 экз., по биомассе это соотношение показало 37,5 кг и 27,6 кг соответственно. При выключенном РЗУ состав ихтиофауны был представлен 12 видами рыб: сазан, карась, плотва, язь, лещ, красноперка, чехонь, змееголов, судак, окунь, щука и жерех. При включенном РЗУ такие виды, как плотва и язь, отсутствовали в сетном улове. Количество красноперки существенно сократилось. В обоих уловах численность сазана и карася была схожей; лещ и чехонь попадались единично. Численность хищной рыбы в уловах (щука, окунь, змееголов и судак) выросла. Жерех в сетных уловах не встречался, однако он является основным объектом любительского рыболовства на крючковые снасти. На основании улова на усилие можно сделать вывод, что эффективность работы данного РЗУ для мелкой мирной рыбы, такой как язь, плотва и красноперка составляет 95 %, на крупную мирную рыбу (сазана и карася) воздействие не обнаружено, а в отношении хищной рыбы результат оказался отрицательным.
Registro de errores innatos de la inmunidad en un hospital pediátrico
Authors: García-Domínguez Miguel , Valero-Gálvez Guadalupe del Carmen , Velázquez-Ríos Carlos Alberto , Blancas-Galicia Lizbeth
Published: May 2021

El Hospital Pediátrico de Sinaloa (HPS) inició el registro de pacientes con inmunodeficiencia primaria o error innato de la inmunidad (EII) en la plataforma de la Sociedad Latinoamericana de Inmunodeficiencias Primarias (LASID) desde 2017. Durante ese periodo se han diagnosticado y tratado 12 casos en el hospital. El rango de edad al momento del diagnóstico fue de dos días a 16 años y el rango de inicio de los síntomas de 19 días a cuatro años, con predominio del sexo masculino (67 %). El EII más frecuente fue la deficiencia predominantemente de anticuerpos (33.3 %), seguida de defectos en fagocitos en número o función (16.6 %), desórdenes autoinflamatorios (16.6 %), inmunodeficiencias que afectan la inmunidad celular y humoral (16.6 %), inmunodeficiencias combinadas asociadas con los hallazgos sindromáticos (8.3 %) y defectos en la inmunidad intrínseca e innata (8.3 %). El 84 % recibió inmunoglobulina intravenosa; se identificó la variante patogénica en el gen WAS en un caso con síndrome de Wiskott-Aldrich; un paciente recibió trasplante de células progenitoras hematopoyética; 33.3 % falleció, 25 % por sepsis y 8.3 % por hemorragia masiva. El registro de las EII permite conocer datos epidemiológicos, incidencia, prevalencia, diagnósticos y tratamientos, lo que favorecerá al desarrollo de nuevas políticas sanitarias para la obtención de recursos y herramientas para mejorar los modelos de atención.
Asma ocupacional. Serie de casos
Authors: O’Farrill-Romanillos Patricia María , Ávila-Lara Anabel , Álvarez-Chávez Fabián Eduardo , Tinajero Juan Carlos , Torres Ana Luisa Nayeli , Maldonado-Domínguez Edwin Daniel
Published: May 2021

Antecedentes: El asma tiene una prevalencia mundial de 18 %. En el asma relacionada con el trabajo existe asociación entre asma y exposición a polvo, vapores o humos exclusivamente en el ambiente laboral, en pacientes con o sin diagnóstico previo de asma; representa aproximadamente de 5 a 25 % de los casos de asma de inicio en edad adulta. En México existe escasa información al respecto. 
Casos clínicos: Se reporta una serie de 17 pacientes con diagnóstico de asma y exposición laboral a polvo, vapores o humos; se determinó asma ocupacional por parte del Servicio del Alergia e Inmunología Clínica, Hospital de Especialidades, Centro Médico Nacional Siglo XXI.
Conclusiones: La salud en el trabajo es primordial para el adecuado desempeño del personal, el funcionamiento óptimo de la unidad laboral y para evitar daños a la salud, pérdidas económicas y repercusiones sociales. La función del médico a cargo de la salud ocupacional en cuanto a la prevención, diagnóstico y manejo oportuno de patologías frecuentes de acuerdo con el sector laboral representa una gran área de oportunidad en centros de trabajo que es importante atender.
Comparative Osteometric study of some selected bones of local domestic turkey and guinea fowl
Authors: Bello Abdulrahman , Aisha Yusuf
Published: May 2021

The research was conducted in the Gross section of Veterinary Anatomy laboratory with the aim of preparation and comparing some skeleton bones of local domestic turkey and guinea fowl. Samples were purchased, sacrifice, feather and excess flesh were removed and boiled using water to produce the bones. The duration of process was recorded. Comparative biometry study was conducted on some selected bones (scapular, coracoid, furcular and tibiotarsus) and the bones were mounted using wooden stand, copper wire, and adhesive gum with the aim of enhancing avian teaching. Based on the processes of the research. It was recommended to use plastic materials in production of skeletal models to avoid deterioration of bones for proper teaching in veterinary anatomy.
Comparison of clinical, chest CT and laboratory findings of suspected COVID-19 inpatients with positive and negative RT-PCR
Authors: Gokhan Perincek , Canver Onal , Sema Avci
Published: May 2021

Introduction: COVID-19 is an infectious disease caused by the severe acute respiratory syndrome coronavirus 2 and it was first reported in China. The aim of this study was to compare clinical features, chest CT findings and laboratory examinations of suspected COVID-19 inpatients according to RT-PCR analysis. Methods: Demographics, comorbidites, symptoms and signs, laboratory results and chest CT findings were compared between positive and negative groups. The study included 292 patients (134 females, 158 males) suspected of COVID-19. All statistical calculations were performed with SPSS 23.0. Results: 158 (54.1%) of the cases were male and 134 (45.9%) were female. Their ages ranged from 17 to 95 years, with an average of 50.46 ± 20.87. A symptom or sign was detected in 86.3% of all patients. The chest CT images of 278 patients were analyzed. Chest CT was negative in 59.2% of patients with positive RT-PCR and 43.9% of patients with negative RT-PCR results. Chest CT findings were atypical or indeterminate in 22.4% of patients with positive RT-PCR results and 20% of patients with negative RT-PCR analysis. ALP, bilirubine, CRP, eosinophil count, glucose, CK-MB mass and lactate were significantly lower in patients with positive RT-PCR test. LDH, lipase, MCV, monocyte, neutrophil count, NLR, platelet, pO2, pro-BNP, procalcitonin, INR, prothrombin time, sodium, troponin T, urea, WBC were significantly lower in patients with positive RT-PCR test results. Conclusion: The diagnosis of COVID-19 is based on history of patient, typical symptoms or clinical findings. Chest CT, RT-PCR and laboratory abnormalities make the diagnosis of disease stronger.
A scoping review of non-communicable diseases and maternal and child health needs of Venezuelan migrants in South America
Authors: Gallo Marin Benjamin , Amaya Andres , Medina Perez Giancarlo , Levine Adam C. , Moretti Katelyn , Garbern Stephanie C.
Published: May 2021

Background

Migration of Venezuelan citizens to other South American countries has increased in recent years. While the prevalence, morbidity, and mortality of infectious diseases in Venezuelan migrants across South America appears to be well described, the non-communicable disease (NCD) and maternal and child health needs in this population is less clear. A scoping review of existing peer-reviewed primary research and grey literature describing the epidemiology of NCDs and maternal and child health needs in Venezuelan migrants in major South American host countries was performed in order to highlight important gaps in knowledge.

Methods

A scoping review was performed of peer-reviewed research and grey literature for NCD and maternal and child health needs among Venezuelan migrants living in the following host South American countries with greater than 100,000 migrants: Argentina, Brazil, Chile, Colombia, Ecuador, and Peru. A total of 47 electronic databases were searched for primary research published between 2017 and 2020 in either English or Spanish.

Results

Out of 1,098 initial articles retrieved, 17 records met inclusion criteria, with the majority identified from the grey literature. Most studies were published in 2019 and most were either primary reports published by non-governmental organizations within the grey literature search or cross-sectional qualitative studies. Studies came from Argentina, Chile, Colombia, and Peru, with three records offering a regional perspective. Most studies provided broad data on NCDs and maternal and child health needs but lacked granular statistics. Our analysis found the rate of chronic disease among Venezuelan migrants to range from 9-14% within countries who reported this data. Significant rates of psychiatric conditions such as depression and post-traumatic stress disorder were reported. Other conditions described were ophthalmologic diseases, diabetes, chronic pain, asthma, cough, dyslipidemia, hypertension, arthritis, malnutrition, and obstetric complications, although exact statistics were limited. Obstacles to care included lack of healthcare access and affordability.

Conclusions

Existing reports discuss important needs related to NCDs and maternal and child health in Venezuelan migrants in South American countries, but there are significant gaps in knowledge. Further research must describe in greater detail the prevalence, morbidity, and mortality of NCDs and maternal and child health needs in Venezuelan migrants in this region in order to assist local governments and international humanitarian organizations with providing strategic and unified responses.
TRANSLATION OF ENGLISH SLANG IN ADVERTISEMENTS
Authors:   Oles Honchar Dnipro National University, Ukraine, Shevchyk Kateryna
Published: May 2021

In the modern world, in the epoch of growth of information technologies, an advertisement is one of the most popular varieties of mass communication that rapidly develops. The growth of advertisement substantially influences on lexical composition of language, creates in a language new concepts and expressions, in particular slang and jargon. Native speakers begin to use such vocabulary in everyday life. Especially modern English has such phenomenon, because it is used all over the world. Nowadays, an advertisement performs the function of public ideas formation. Influencing on people, an advertisement creates consumer philosophy and ideology. One of the most sensible to the advertisement categories of people is youth, because they are in the process of active socialization. Exactly an advertisement is mostly aimed at young consumers, that is why it becomes more widely spread and such products need specific language means of influence. Advertisement makers try to overcome psychological distance between an advertisement and audience, so they use of extralinguistic language units, elements of slang or to create new words. Topicality of this work is defined by the fact that a slang is an integral part of English, and the latest research of slang is of great importance. A slang is one of the most actual and ambiguous problems of modern lexicology. In the world where new slang units appear every day, updating of theoretical and practical knowledge of slang and its functions is very important for modern lexicology. In addition, the deeper analysis of advertisement reports with a slang must be done. A scientific novelty of work is that theoretical knowledge in relation to a slang and advertisement in the conditions of modern development of information technologies are incorporated and generalized; opinions of scientists are analyzed in relation to functioning of slang in an advertisement. The aim of the article is to study features of slang functioning in modern English-language advertisements and analysis of basic methods of translating of such advertisement texts. The achievement of these aims needs solution of the following tasks: 1) to interpret a concept "slang" and "jargon" and define, what a slang differs from jargon in the context of the newest researches; 2) to present the basic methods of forming of slang in modern English; 3) to describe the general views of slang and identify their specifics; 4) to interpret a concept "advertisement" and describe the stylistic features of advertisement text; 5) to describe the features of slang use in advertisement texts; 6) to explain functioning of slang in an advertisement on the example of advertisement slogans and texts; 7) to define the specific features of English-Ukrainian translation of advertisements. The subject of research is an analysis of slang features in modern English and Ukrainian languages in advertisement texts.
Художественное кино о журналистах как разновидность медиакритики
Authors:   Институт «Высшая школа журналистики  и массовых коммуникаций» Санкт-Петербургского государственного университета, Корыхалова Полина Руслановна
Published: May 2021

В статье в контексте медиакритики осмысливается художественное кино о журналистах, обладающее большим потенциалом как по степени влияния на аудиторию СМИ, так и для анализа в академической среде. Автор исследует советские и североамериканские фильмы, в фокусе которых находится профессиональная этика журналиста.