bluuebunny/crossref_metadata_2025 huggingface dataset:
Rancang Bangun Mesin Penyedot Gabah Menggunakan Blower Sentrifugal Guna Mempersingkat Proses Pengepakan Gabah di Desa Tulungrejo Kabupaten Banyuwangi
Authors: Darma Yeddid Yonatan Eka , Prayogo Galang Sandy , Lusi Nuraini , Alfianto Alfianto , Pramuda M Cholis Kurnia
Published: January 2021

Gabah adalah bulir padi yang sudah dipisahkan dari tangkainnya saat proses panen. Gabah dijemur sampai kering dan dimasukkan kedalam karung sebagai tempat penyimpanan. Petani Desa Pagertanjung, Kecamatan Ploso, Kabupaten Jombang memasukkan gabah secara manual kedalam karung. Proses manual memerlukan banyak tenaga manusia. Melihat permasalahan tersebut, perlu dibuat mesin penyedot gabah yang dapat membantu proses penyimpanan gabah kedalam karung.Metode perancangan mesin penyedot gabah menggunakan blower sentrifugal dimulai dengan membuat gambar desain, perhitungan bagian dinamis yaitu perhitungan blower, perhitungan motor, perhitungan sabuk-V dan puli, perhitungan poros, dan perhitungan bantalan. Selanjutnya proses pembuatan komponen-komponen mesin, kemudian perakitan, dan proses pengujian alat untuk mengetahui mesin dapat bekerja dengan baik atau tidak. Tujuan pembuatan mesin penyedot gabah menggunakan blower sentrifugal ini adalah untuk mempermudah petani memasukkan gabah kedalam karung.Hasil perencanaan bagian dinamis yaitu, daya yang dibutuhkan blower untuk menghisap adalah 1,92 kW, maka digunakan motor 5,5 HP (4,1 kW) menyesuaikan yang ada di pasar, puli yang digunakan untuk motor (dp) dan poros (Dp) adalah 91 mm, sabuk yang digunakan adalah tipe A, diameter minimal poros adalah 18,5 mm. Untuk menyesuaikan pemilihan bantalan yang ada di pasaran, diameter poros yang digunakan adalah 20 mm. Menggunakan jenis bantalan gelinding, nomor 6004 dengan diameter poros 20 mm. Hasil uji coba yang paling baik menggunakan putaran 1650 rpm dengan selang input Æ76,2 mm.
Cegah Stunting Sejak Dini dengan Makanan Bergizi untuk Ibu Hamil
Authors: Ningrum Nyna Puspita , Hidayatunnikmah Nina , Rihardini Tetty
Published: January 2021

Stunting merupakan suatu kondisi yang sangat umum terjadi pada seorang anak dengan kekurangan gizi dikarenakan jumlah makronutrien dan mikronutrien tidak cukup memadai.Indonesia menempati peringkat kelima dunia untuk jumlah anak dengan kondisi stunting.Usaha dini yang dapat dilakukan untuk melakukan pencegahan stunting bisa dilakukan sejak masa kehamilan.Prinsipnya adalah meningkatkan asupan gizi ibu hamil dengan memastikan selama kehamilan ibu mengkonsumsi makanan yang bergizi dan berkualitas baik, oleh karena itu, dibutuhkan suatu penyuluhan untuk meningkatkan wawasan ibu hamil terkait kebutuhan gizi yang baik selama kehamilan dan menambah keterampilan ibu hamil dalam mengelola makanan yang kaya akan gizi. Target khusus pada kegiatan masyarakat ini adalah ibu hamil dan kader kelurahan. Metode yang diterapkan pada kegiatan ini adalah ceramah/penyuluhan, demonstrasi cara membuat makanan bergizi untuk ibu hamil, dan evaluasi dengan teknik food recall. Hasil akhir pada kegiatan pengabdian masyarakat adalah meningkatnya pemahaman kader dan ibu hamil terkait gizi yang dibutuhkan selama masa kehamilan, serta kemampuan mempraktikkan mengolah makanan yang kaya akan kandungan gizi.
Pelatihan Pembuatan Materi Literasi Tanggap Bencana bagi Keluarga pada Staf BPBD Jawa Timur
Authors: Anam Syafi’ul , Dari Retno Wulan , Savitri Wiwiet Eva , Leliana Ayunita
Published: January 2021

Bencana alam seperti gempa bumi, banjir, tanah longsor, gunung meletus, dan puting beliung sering terjadi di Indonesia dan umumnya terjadi tanpa adanya peringatan dini bencana. Banyaknya bencana alam menimbulkan banyak korban jiwa dan harta. Untuk mengurangi dan meminimalkan jumlah korban, masyarakat perlu disiapkan untuk menghadapi bencana. Literasi terkait mitigasi bencana perlu dilakukan untuk membuat masyarakat memahami apa yang perlu disiapkan dan dilakukan sebelum dan ketika bencana alam terjadi. Sebagai unit terkecil dalam masyarakat, keluarga mempunyai peran penting dalam literasi mitigasi bencana. Karena gempa bumi merupakan bencana alam yang paling banyak terjadi di Indonesia, PKM ini difokuskan pada pengembangan lembar kegiatan (LK) orang tua dan anak usia dini untuk mendukung literasi mitigasi bencana alam gempa bumi. LK dalam PKM ini disusun dengan bekerjasama dengan BPBD Jawa Timur dan LK yang dihasilkan diserahkan ke BPBD sebagai suplemen materi sosialisasi mitigasi bencana yang sudah dimiliki BPBD.
Peningkatan Kompetensi Warga Belajar Kejar Paket C Melalui Pelatihan Kreasi Desain Grafis
Authors: Darmanto Susetyo , Darmawan Djoko , Bukirom Bukirom
Published: January 2021

Warga belajar yang menuntut ilmu dalam program kesetaraan Kejar Paket C di PKBM Bina Karya adalah bagian dari kelompok masyarakat yang perlu mendapatkan pengetahuan dan keterampilan. Namun keterbatasan sumber daya manusia para tutor kesetaraan, menjadikan aspek keterampilan hidup tidak didapatkan. Oleh karena itu dipandang perlu untuk memberikan pelatihan keterampilan praktis di bidang teknologi seni kreasi grafis digital, sebagai bekal berwiraswasta setelah menyelesaikan pendidikan. Tujuan kegiatan ini selain kemampuan hard skill yang berupa keterampilan membuat berbagai produk kreasi dari digital, juga memberikan kemampuan soft skill berupa pengetahuan tentang dunia wirausaha (teknopreneurship), sikap optimis dalam menghadapi hari esok dan sikap untuk tidak mudah menyerah. Metode pelaksanaan program meliputi: penyusunan diktat pelajaran, ceramah kewirausahaan, penyampaian teori, dan praktik keterampilan pembuatan kreasi desain grafis digital. Instrumen yang dipilih untuk evaluasi hasil pelatihan adalah berbasis portofolio hasil karya peserta pelatihan. Hasil yang telah dicapai adalah peserta pelatihan memiliki keterampilan mengoperasikan program CorelDraw dan Adobe Photoshop, serta menghasilkan berbagai kreasi produk desain grafis. Ke depan diharapkan pengelola PKBM Bina Karya lebih aktif menjalin kerjasama dengan berbagai pihak untuk memberikan pelatihan keterampilan hidup.
Internet communications: time phenomenon and communicative activity
Authors:   Udmurt State University, Izhevsk, Russia, Vasyura Svetlana , Kuzmina Olga ,   Ural State University of Economics, Ekaterinburg, Russia, Maletova Marina ,   Udmurt State University, Izhevsk, Russia
Published: January 2021

The article focuses on a theoretical overview of time phenomenon in Internet communications. Advanced technologies and virtual interactions make interaction and communicative competence priories in Internet communications. Time is seen as both a biological and a social phenomenon and the notion of time competence embraces the ability to establish and maintain social contacts within the indicated timeline and capability to extend and restrict the timeframe of communications. Based on a theoretical analysis of reflection and regulation of communicative activity in Internet communications the authors have devised a training programme “Enhancement of time competence in Internet communications”. This five module programme is aimed to university and high school students. The article also presents the results of implementing this programme.
Open-mindedness in the terminological system of the modern philosophy of education: interpretations and problems
Authors:   Bunin Yelets State University, Yelets, Russia, Krikunov Alexander
Published: January 2021

This article considers the main aspects of the discussion about the concept of open-mindedness in modern English-speaking philosophy of education. It emphasizes the importance of the topic for national pedagogy, which is currently in composite dialogue with world traditions of understanding the educational process. Open-mindedness is considered as an element of an extensive terminological system. The need to clarify the meaning of the concept is associated with its role in determining the criteria for the distinction between education and indoctrination. The article presents the most significant definitions of open-mindedness and indicates that the external obviousness of the concept contrasts with the difficulty of finding its consistent definition. It finds that the key feature of the experience in interpreting open-mindedness is the increase in educational requirements. It summarizes the main objections raised to various aspects of a theoretical understanding of the concept. The author considers it logical to abandon attempts to implement the ideal of absolute rational open-mindedness in teaching. In general, the discourse on open-mindedness shows the impossibility of avoiding discussion about the development of a subject in any attempt to determine the meaning of education. The article presents the research prospects in rethinking the role of rationality in the process of making a man and the world.
Early career guidance as a method of developing the foundations of engineering thinking
Authors:   Southern Federal University branch in Gelendzhik, Russia, Shchemeleva Yulia
Published: January 2021

The article discusses vocational guidance work and its importance in the rapidly developing world for vocational guidance of young people. In the classical sense, this work is aimed at identifying a way of thinking that has already been formed. The article considers methods for determining types of thinking and argues for the possibility of developing a technical way of thinking. There are proposals for developing “engineering” thinking in the framework of work with students in further education programs and a discussion on the age at which the development of technical thinking should begin. There is a detailed description of the author’s experience in the developing engineering thinking in grade 5 schoolchildren within the framework of the network educational project “Engineering”. Assessment data at various points in the project implementation are analyzed. The problems that arose during the implementation of the project are described, their root cause is analyzed, and methods of resolution are proposed. The conclusions show that the way of thinking is not an inherent genetic constant; the way of thinking is formed by the social environment of a person, by the tasks he is solving. It shows the possibility of developing students’ “engineering” thinking through classes in technical programs.
YIELD PERFORMANCE AND ADAPTATION OF DESI CHICK PEA VARIETIES IN SELECTED DISTRICTS OF WOLAYTA AND HADIYA ZONES OF SOUTH ETHIOPIA
Authors: Goa Yasin , Ashamo Mathewos
Published: January 2021

The experiments were conducted on station and on farm in three districts of Wolayta and Hadiya Zones, south region, Ethiopia, to evaluate the adaptation and yield, assess farmer’s preferences of desi chick pea varieties  to this agro ecological Zones during 2004/05 Meher Season. Data on plant height, hundred seed weight, pod per plant, days to flowering, days to maturity and grain yield were recorded. Five released varieties namely worku, Akaki, Mariye, Dubie, Dz-10-11 and local checks of respective locations were planted on 4.8m2 plots at spacing of 30cm*10cm. The trials were laid in randomized complete block design with three replications. Twelve farmers from three districts at four villages’ three farmers at each village were participated in conducting on farm trials with each farmer as a replicate. There were significant differences among varieties for grain yield and some of traits.  The varieties Akaki and worku were superior yielded overall to the standard and local check across villages ’and on stations. Thus, Akaki and worku out yielded other varieties and had average yields of 1440.95 kg/ha and 1434.75kg/ha at on station and similar trends on farm. The combined statistical analysis and farmers assessments revealed Akaki and worku out yielding other varieties which were also selected by farmers and researchers as the most preferred varieties’. It is therefore recommended that worku and Akaki which had higher yields be promoted for cultivation in the selected districts of south Ethiopia.
HISTORY OF PSYCHOSOCIAL REHABILITATION IN INDIA
Authors: Ponnuchamy L.
Published: January 2021

Psychosocial Rehabilitation (PSR) is a part of psychiatric treatment for persons with chronic mentally illness. In the past two decades, the importance of psychosocial rehabilitation is increasing gradually.  The concept and approaches of PSR have been spreading steadily all over the world.  It is a growing field in the developing countries like India.  The information about history of psychosocial rehabilitation among the mental health professionals is inadequate.  But one could see the route of this, even before our country got independence from British colonial rule.  It is always happy to see pathways of any field or subject how it was evolved and developed.    This is an attempt with available resources to bring out the history to the light.
RELATIVE POTENCY OF ANTI-DIABETIC COSTUS SPECIOSUSPLANT EXTRACT IN MOUSE FIBROBLAST CELL LINE
Authors: Bindu  , Bhat Rama , Girish  , Prasad Krishna
Published: January 2021

Plant-derived compounds have been used clinically to treat type 2 diabetes for many years as they also exert additional beneficial effects on various other disorders. PI3K pathway is the major pathway activated by insulin receptor (IR). It induces glucose uptake, glycogen synthesis, protein synthesis, cell growth and differentiation. Hence metabolic assay was employed to assess glucose uptake based on the property of 3T3-L 1 cells to differentiate into adipocytes which can take up the glucose in medium due to the effect of insulin or insulin like molecules. The results of the current study showed that plants extract probably exerts its anti-diabetic properties by stimulating glucose uptake in adipocytes with significant inhibition of adipogenesis demonstrating reliable relative potency in comparision to the commercial insulin.  The ability of existing therapies to target various aspects of the insulin resistance syndrome induces other metabolic abnormalities, chiefly those involved in lipid metabolism.

In this preliminary in-vitro study Costusspeciosus plant extract demonstrated to have significant relative potency in comparison to commercial Insulin which can be exploited to treat diabetes using natural herbal extracts

Current study leads researchers to elucidate the chemical structures, isolate active ingrediatents in the crude extract for such biological activities in reference to commercial and recombinant insulins.
Comparison of the Compositions of Butter and Butter Oil Produced in the Province of Hakkari
Authors: SEVMİŞ Evin , ANDİÇ Seval , OĞUZ Şehriban
Published: January 2021

The aim of this study was to determine and compare certain properties of various butter and butter oils obtained from the province of Hakkari in Turkey. Butter and butter oil samples were produced by local producers using traditional methods from the same raw materials. Fat percentage and total dry matter were determined using the gravimetric method, peroxide values (PV), thiobarbituric acid (TBA), and cholesterol levels were measured using spectrophotometry, and acidity was determined by titration. The water activities (aw) of the samples were measured using a water activity meter. In addition, coliform bacteria, yeast and mould, and lipolytic microorganism counts were determined. Total dry matter and fat values of the butter oils were significantly higher than those of the butter samples. The fat-free dry matter, aw, ADV, cholesterol, and TBA values of the butter samples were generally higher than those of the butter oil samples. The counts of yeast and mould, lipolytic microorganism and coliform bacteria for the butter samples also exceeded those of the butter oil samples. Conversely, peroxide values were higher overall for the butter oil than the butter samples.
Bazı Allium Türlerinin Morfolojik Ölçümleri, Stoma ve Polen Özellikleri ile Polen Canlılığının Belirlenmesi
Authors: ŞELEM Ezelhan , NOHUTÇU Lütfi , TUNÇTÜRK Rüveyde , TUNÇTÜRK Murat
Published: January 2021

Allium türleri çok çeşitli alanlarda kullanılmasına karşın Doğu Anadolu Bölgesi’nde baharat, kan şekerini düzenleyici, bağırsak sorunlarını giderici, ağrı kesici, yara iyileştirici, akne tedavisi ile otlu peynir yapımında kuru veya yaş olarak sıkça tercih edilmektedir. Bu çalışmada ülkemizde özellikle aroması ve antimikrobiyal özelliğinden kaynaklı yoğun olarak kullanılan bazı Allium türlerinin morfolojik ölçümleri (bitki boyu, sap boyu ve çapı, yaprak boyu ve çapı, yaprak sayısı, umbella çapı, pedisel uzunluğu), stoma ve polen özellikleri ile polen canlılığının belirlenmesi amaçlanmıştır. 2016 yılında Van ve çevresinde yapılan arazi gezmeleri sırasında doğal ortamlarından toplanan Allium akaka, A. giganteum, A. kharputense, A. scorodoprasum subsp. rotundum, A.vineale ve A. sintensii türleri Van Yüzüncü Yıl Üniversitesi Tıbbi Bitkiler Bahçesi’nde hazırlanan parsellere ekilmiş ve kültüre alınmıştır. Sonuç olarak, bitkilerin bulunduğu gözlem parsellerinde yapılan ölçüm ve değerlendirmelere göre morfolojik özellikler bakımından iyi bir adaptasyonun olduğu görülmüş, A. kharputense ve A. sintensii türlerinin diğerlerine kıyasla daha zayıf bir gelişim gösterdiği belirlenmiştir. Yüksek tohum veriminde önemli bir parametre olan polen miktarı ve canlılık oranlarında ise A.vineale ve A. scorodoprasum subsp. rotundum türlerinin ön plana çıktığı görülmüştür. Adaptasyon ve fotosentezde önemli bir rolü olan stomaların yoğunluğu en fazla A. kharputense türünde olup, en yüksek ölçülere ise A. vineale türünün sahip olduğu görülmüştür.
Strengthening the role of public governance approaches to ensure sustainable economic growth
Authors: Ershov Mikhail , Tanasova Anna , Sokolova Elena
Published: January 2021

The COVID-19 pandemic has formed a fundamentally new environment in both the global and Russian economies. The scale of problems that countries have to deal with significantly enhances the role of the state in the functioning of the economy and requires active government intervention to stabilize the situation and overcome the crisis. The article analyzes the role of state regulation and monetary authorities in the crisis environment in Russian and global economies. Methodologically, the study relies on the theory of institutionalism, Keynesian and neo-Keynesian economics, monetarism and industrialization. Qualitative methods of analysis, as well as retrospective and system-based methods and cross-country comparisons are applied in the research. The authors emphasize that the quality of these interventions is becoming increasingly important. In the Russian Federation, the economic situation is aggravated by the pre-existing problems, such as low business activity. We analyze the measures to support the Russian economy that are aimed, among other things, at the formation of long-term structural changes. Despite the fact that the introduction of the government approaches to counteract the crisis in 2020 will help to mitigate the current acute situation, they will not be able to lay solid foundations for further sustainable economic growth, since system-based mechanisms are still not provided for forming long-term affordable financial resources that are necessary for investment. The paper develops concrete approaches for providing the economy with long-term money, which embrace the formation of the resources on an internal basis amid the interaction of the Central Bank and the Ministry of Finance. We stress the powerful role of mechanisms for government departments’ coordination.
Strategic priorities for managing spatial inequalities in the socio-economic development of the Russian regions
Authors: Antipin Ivan , Vlasova Natalya , Ivanova Olga
Published: January 2021

With the growing need to ensure the security and sustainability of the national economy’s long-term development under unstable macroeconomic conditions, it is of special relevance to comprehend the inequalities being formed in the socioeconomic space of Russia and its regions. The paper aims to explore the trajectories of the socio-economic space’s inequality at the macro- and meso-levels in the Russian Federation, as well as to determine the strategic priorities for managing interregional differentiation. The study presents an integrated approach based on the primacy of the interconnection and interdependence typical of spatial imbalances. The approach implies the assessment of the dynamics of three groups of indicators that characterize the differences in economic and social development of the Russian regions. Scientific ideas about regional and spatial economics, as well as location theory and strategic management constitute the methodological framework of the research. In the study, dialectical, cause-effect and statistical methods are used. We prove that economic and social spaces in Russia often have opposite development priorities, which hampers the effectiveness of government policy. This requires adjusting the strategic management of spatial imbalances aimed at increasing the efficiency of public administration mechanisms and methods, and improving the consistency of development indicators of the country and its regions with long-term socio-economic goals. Having assessed the problems of regulation of the socio-economic development inequalities and performed a discourse analysis of relevant documents, the article develops the key thrusts for improving the system of strategic planning in Russia. The findings add to the development of a scientifically based approach to implementing strategic management of spatial inequalities in the socio-economic development of Russia and its regions.
Alternatives to managerialism in higher education and science
Authors: Volchik Vyacheslav , Koryttsev Maksim , Maslyukova Elena
Published: January 2021

Commitment to efficiency amid the implementation of competition principles and the market-oriented approach stimulates the emergence of contradictory tendencies such as commoditization and bureaucratization of higher education and science. The paper explores the dissemination of ideas of managerialism and related institutional traps in academic environment. Methodologically, the study rests on original institutional economics and the theory of reforms for analyzing institutional traps in the education and academic sphere. The authors apply qualitative methods and focus group research to identify possible alternatives to managerialism. Using data from three focus groups, we analyze institutional traps in education and science and the mechanisms for eliminating them through identification of opinions, values and experience of respondents (actors). The study underlines that there is a need for considering principles, models and regulation mechanisms in education and science alternative to managerialism. They are being formed either in the context of rules, routines, norms and management technologies emerging as a result of evolution and actors’ adaptation to the changing environment, or as processes deliberately planned and developed within academic self-government and self-organization and/or as a result of state policy. The research develops alternative management mechanisms in the field of education and science with reference to the identified institutional traps and actors that can act as bearers of these alternatives in academic community.
Mere Presence of a Cell Phone: Effects on Academic Ability
Authors: Boila Vanessa C. , Kwong Tru E. , Hintz Jaimey E.
Published: January 2021

Prior research has suggested that cell phone use in the classroom and during learning-related tasks is detrimental to academic performance. Recently, the mere presence of a cell phone has been found to negatively affect relationships and to impair performance on learning and cognitive tasks. This study explored whether the presence (visibility without use) of a cell phone negatively impacts one’s performance on tests measuring preexisting academic ability. The study evaluated 45 participants; some were enrolled in an introductory psychology course, and others were members of the public. Three subtests from the Wide Range Achievement Test (WRAT-4) were completed: spelling, sentence comprehension, and mathematics. During testing, half of the participants had cell phones, and the other half did not. Statistical analyses revealed no significant difference between the cell phone-present and cell phone-absent group on the sentence comprehension (p=.52), spelling (p=.07), and mathematics subtest (p=.11). Unexpectedly, a non-significant trend was observed in the opposite direction; that is, the cell phone-present group outperformed the cell phone-absent group on all subtests. Therefore, the original hypothesis suggesting that the cell phone-present group would be significantly poorer at demonstrating preexisting skills on tests of academic ability in comparison to the cell phone-present group was not supported.
Raising the Curtain on Drama Therapy: Healing Benefits for Youth and Older Adults
Authors: Boila Vanessa , Klettke Lanette , Quong Stephanie , Gerlitz Ciara
Published: January 2021

The vast majority of people around the world have been exposed to dramatic arts in some way, shape, or form, but only recently has drama therapy been accepted as a therapeutic treatment for individuals across the lifespan. This paper provides a general introduction to drama therapy and some of the techniques (e.g., role playing and storytelling) employed in its delivery and hands-on practice. In addition, the paper explores how drama therapy has been used to treat young people (approximately 10-17 years old) who have autism and/or social, emotional, and behavioural difficulties, and older adults (approximately 60-90 years old) who are experiencing normative or non-normative aging. The findings presented here suggest drama therapy may be an efficacious, healing treatment for a myriad of age groups. For instance, its positive effects on individuals with dementia have been observed, and an assortment of intra- and inter-personal improvements have been documented in youth. Considering drama therapy is still a growing field, less drama therapy research exists in comparison to its alternative treatments.
Young and Risky
Authors: Dhanoa Avnit , Ehsan Fatima , Huxter Kayla , Moller Christine L. , Nolet-Mulholland Liam , Dahal Rimsa
Published: January 2021

The purpose of this study was to see if risky sexual behaviour has changed from the Millennial Generation to Generation Z. Data were collected at the University of Alberta from participants ranging in age from 18 years to 24 years old. Participants answered 45 multiple choice questions that targeted the use of contraceptives, testing for and history of sexually transmitted infections, unplanned pregnancies, alcohol use, number of sexual partners, first sexual experience, etc. The results of our study suggest that individuals in Generation Z were more likely to participate in sexually risky behaviour in terms of the number of sexual partners. However, there was no significant difference between the two generations in terms of condom use or engagement in sexual activity. Understanding generational changes in sexual risk-taking can better equip communities to provide adequate information and resources to individuals engaging in sexual activity.
The Influence of Coal Tars over the Environment
Authors: MOLDOVAN Clementina , MATEI Aronel , HERBEI Roxana Claudia , MATEI Raluca
Published: January 2021

Coal is a macromolecular compound. At high temperatures, by coal pyrogenesis, coke and volatile products will result.The volatile products from coal form the coke gas and coke tar from which a very large number of aromatic compounds can be extracted.The aromatic compounds extracted from domestic and foreign coal tar were compared in this paper, together with their effects overthe human and animal health.
Zaawansowane biomateriały o właściwościach półprzewodnikowych oparte chitozanie pochodzącym z grzybów
Authors: PIĄTKOWSKI Marek , SIERAKOWSKA Aleksandra , JANUS Łukasz , RADWAN-PRAGŁOWSKA Julia
Published: January 2021

Inżynieria tkankowa jest dziedziną nauki, która koncentruje się na metodach i technikach tworzenia nowych tkanek i narządów doterapeutycznej rekonstrukcji uszkodzonego narządu poprzez dostarczanie struktur wspierających, komórek, sygnałów molekularnychi mechanicznych do regeneracji w pożądanym kierunku. Konwencjonalne implanty wykonane z materiałów obojętnych mogą wyeliminować fizyczne i mechaniczne wady uszkodzonych tkanek. Celem inżynierii tkankowej jest przywrócenie funkcji biologicznych,czyli regeneracja tkanek, a nie tylko zastąpienie jej substytutem wykonanym z materiału syntetycznego. Najważniejsze wyzwaniainżynierii tkankowej obejmują rozwój nowych biomateriałów, które będą wykorzystywane jako trójwymiarowe rusztowania do hodowli komórkowych. Takie rusztowanie musi charakteryzować się biokompatybilnością i biodegradowalnością. Celem badań byłouzyskanie biomateriałów na bazie acylowanego chitozanu. Rezultatem prac było uzyskanie trójwymiarowego rusztowania o właściwościach bioaktywnych na bazie surowców pochodzenia naturalnego. Biomateriały zmodyfikowano nanocząstkami ferrimagnetycznymi, które są zdolne do elektromagnetycznej stymulacji proliferacji.
Bioaktywne rusztowania do inżynierii tkanek skóry domieszkowane złotymi nanocząstkami przygotowanymi z biomasy odpadowej
Authors: RADWAN-PRAGŁOWSKA Julia , JANUS Łukasz , PIĄTKOWSKI Marek , SIERAKOWSKA Aleksandra , BOGDAŁ Dariusz
Published: January 2021

Skóra jest pierwszą barierą przed patogenami i szkodliwymi czynnikami zewnętrznymi. Każde uszkodzenie tej tkanki może powodować zakażenie drobnoustrojami i zagrożenie dla narządów wewnętrznych. Oparzenia, które mogą być wynikiem narażenia na promieniowanie, chemikalia lub wysoką temperaturę, prowadzą do znacznego zakłócenia funkcji skóry. Najbardziej obiecującą metodątego odzyskiwania tkanki jest medycyna regeneracyjna, która wymaga zastosowania trójwymiarowych biokompatybilnych rusztowań.Biomateriały umożliwiają namnażanie komórek skóry i tworzenie nowych tkanek w warunkach in vitro. Można je wytwarzaćz polimerów syntetycznych i naturalnych oraz ich kombinacji. Zastosowanie dodatkowych składników, takich jak nanocząstki, możepoprawić ich właściwości mechaniczne i mieć pozytywny wpływ na podziały fibroblastów i tworzenie się komórek. Jednym z najbardziej obiecujących surowców na rusztowania jest chitozan - pochodna chityny.Można go uzyskać z biomasy odpadowej, takiej jakegzoszkielety krabów, krewetek i homarów. Chitozan jest nietoksyczny, biodegradowalny i ma właściwości antybakteryjne.Celem przedstawionych badań było uzyskanie nowych pochodnych chitozanu domieszkowanych nanocząstkami złota przy użyciuwyłącznie naturalnych składników, takich jak skórki pomarańczy i pochodna kwasu tłuszczowego. Proponowana strategia modyfikacji zaowocowała przygotowaniem nowego, biodegradowalnego i biokompatybilnego materiału o interesujących właściwościach.Produkty analizowano metodami UV-Vis i FT-IR. Rusztowania badano pod kątem ich podatności na degradację enzymatyczną. Nakoniec biomateriały zweryfikowano pod kątem ich zgodności cytologicznej z ludzkimi fibroblastami skórnymi. Wyniki wykazały, żeproponowany szlak syntezy zaowocował uzyskaniem biomateriałów chitozanu o wysokim potencjale w medycynie.
Redukcja zanieczyszczenia podczas obróbki kompozytów
Authors: RAŠKA Jan , HLAVÁČ Libor , ŠTEFEK Adam , TYČ Martin
Published: January 2021

Obróbka materiałów kompozytowych klasycznym sposobem, tj. przy użyciu konwencjonalnych narzędzi do toczenia, wiercenia, frezowania, szlifowania i polerowania, powoduje powstawanie bardzo małych cząstek – pyłu. Cząsteczki te dostają się do powietrza, ponieważ obróbkę należy wykonywać przy minimalnym zraszaniu, aby chronić właściwości materiału kompozytowego i uniknąć rozwarstwienia lub pęcznienia. Stosowana jest również obróbka epoksydu stosowanego jako spoiwo. Pył powstający podczas obróbki materiałukompozytowego może mieć negatywny wpływ na zdrowie i spowodować wybuch. Zapalenie skóry lub wdychanie toksycznej żywicyepoksydowej to tylko niektóre z przykładów. Powszechnym rozwiązaniem tego problemu jest odsysanie cząstek i oparów za pomocąmaszyn wytwarzających podciśnienie. Usunięcie tych szkodliwych substancji z powietrza jest dość wymagające i kosztowne. Co więcej,stosowanie popularnych systemów ssących jest wielokrotnie mniej wydajne niż deklarowane przez producentów. W artykule przedstawiono nowy sposób walki z zanieczyszczeniami powodowanymi przez obróbkę kompozytową. Alternatywnym sposobem do obróbkikompozytów jest ścieranie strumieniem wody (AWJ). Ten sposób jest wydajny we wszystkich podstawowych procesach obróbki i powoduje powstawanie w powietrzu tylko około 1% niebezpiecznych zanieczyszczeń w porównaniu do klasycznych narzędzi. Przedstawionopostępy systemu obróbki AWJ opartego na robocie jako urządzeniu ruchowym i komentowano pierwsze wyniki. Główna uwaga skupionajest na możliwościach obróbki strumieniem wody. Przedstawiono również inne współczesne badania koncentrujące się na zmniejszaniutłumieniu zanieczyszczeń z procesu obróbki kompozytów.
Usuwanie siarczanów z wody procesowej za pomocą dejonizacji pojemnościowej
Authors: SINCHE-GONZALEZ Maria , MOLLEHUARA CANALES Raul
Published: January 2021

Usuwanie uwolnionych jonów siarczanowych w wodzie jest jednym z głównych wyzwań w przemyśle. Uwolnione jony siarczanowe sąwszechobecne w wodach będących pod wpływem działań górniczych ze względu na ich fizyczną i chemiczna stabilność w roztworachwodnych, wliczając w to wody procesowe stosowane podczas procesów wzbogacania. Jest to główny problem dla przemysłu górniczego ponieważ ma to negatywny wpływ na proces wzbogacania oraz powodować może także problemy sprzętowe i infrastrukturyrurowej. Ponadto, nie należy zapominać o wpływie takiej wody na środowisko naturalne. Dla przykładu, kiedy woda jest kierowanado procesów przeróbczych, uwolnione siarczany mogą się namnażać do poziomów wysokiej koncentracji a to ma negatywny wpływna prowadzone procesy. Praca ta proponuje nowe podejście do problemu usuwania jonów siarczanowych z przemysłowych wódgórniczych, wliczając w to wody procesowe, którym jest zastosowanie dejonizacji pojemnościowej. Technika ta daje dobrej jakościwodę o niskiej zawartości siarczanów, która jest odpowiednia dla procesów wzbogacania i jest zgodna z wymogami jakościowymidla recyklingu a tym samym bezpieczna dla środowiska naturalnego. Sztuczna woda procesowa o zawartości siarczanów podobnejdo wody przemysłowej z zakładów przeróbczych sektora górniczego została przygotowana i poddana procesowi CADI w stałych warunkach napięcia elektrycznego i czasu. Oryginalna koncentracja siarczanów w wodzie wynosiła 1000, 2000, 3000 mg/L a stopieńredukcji osiągnięty wyniósł, odpowiednio, 275 mg/L, 712 mg/L oraz 1015 mg/L. Wyniki pokazały efektywność w usuwaniu jonówsiarczanowych z wody procesowej.
Identifikasi Faktor-Faktor yang Memengaruhi Prestasi Mahasiswa Menggunakan Regresi Logistik Ordinal dan Random Forest Ordinal
Authors: Nisa' Zuhdiyah Izzatun , Soleh Agus M , Wijayanto Hari
Published: January 2021

Student achievement is the result of student learning processes and efforts. This research was conducted through a survey of students of the 2015-2017 FMIPA IPB with the selection of respondents using stratified random sampling. The purpose of this study is to identify the factors that influence the achievements of the 2015-2017 FMIPA IPB students using ordinal logistic regression and ordinal random forest. The response variable used is the PPKU GPA category and the last even semester GPA which is categorized based on the predicate of IPB graduation. The results of ordinal logistic regression get 7 explanatory variables that influence the PPKU GPA and 7 explanatory variables that influence the last even semester GPA. Explanatory variables that have a significant effect on ordinal logistic regression and become 10 variables with the highest level of importance in the ordinal random forest for both response variables are department, mother’s education, internet access in a day for games, activity in the class, and active work on a group assignment.
Saving the planet with appropriate biotechnology: 1. Diagnosing the problems
Authors:   School of Biological Sciences, Faculty of Biology, Medicine and Health, The University of Manchester, UK (retired)., Moore David , Heilweck Matthias , Petros Peter ,   3, place Gouraud, F-68240 Kaysersberg, France,   Kääpä Biotech Oy, Teilinummentie 4, 09120 Karjalohja, Finland.
Published: January 2021

We give a plain language guide to the Earth’s carbon cycle by briefly summarising the observations and origins of increased levels of greenhouse gases, mainly CO2 but including CH4 and N2O, in our atmosphere. The only tenable explanation for our atmosphere’s present state is that it is the consequence of mankind’s excessive use of fossil fuels since the Industrial Revolution onwards. We deal with the arguments that deny the truth of this, then illustrate the Earth’s global carbon cycle, which was almost exactly in equilibrium for several thousand years while humans were evolving, before industrial humans intervened. We describe how the excess greenhouse gas emissions are projected to change the global climate over this century and beyond and discuss ‘dangerous anthropogenic interference’ (DAI), ‘reasons for concern’ (RFCs) and climate tipping points. Finally, we give a short account of the various improved management, engineering and natural climate solutions advocated to increase carbon storage and/or avoid greenhouse gas emissions across global forests, wetlands, grasslands, agricultural lands, and industry. This review concludes with our basic message, which is that cultivation of aquatic calcifiers (coccolithophore algae, corals, crustacea and molluscs) offers the only effective and permanent carbon sequestration strategy.
Saving the planet with appropriate biotechnology: 4. Coccolithophore cultivation and deployment
Authors:   School of Biological Sciences, Faculty of Biology, Medicine and Health, The University of Manchester, UK (retired)., Moore David
Published: January 2021

Cultivating coccolithophore algae for carbon sequestration is discussed. Coccolithophores have been major calcium carbonate producers in the world’s oceans for about 250 million years. Today, they account for about a third of the total marine CaCO3 production by coating their single cells externally with plates of microcrystalline CaCO3. The possibility that these algae could be used to trap atmospheric CO2 with existing technology has not been widely considered. There is scope for both high technology cultivation in bioreactors and low technology cultivation in terraced raceway ponds or lagoons on tropical coastal sites. The latter could produce a sludge of pure CaCO3 as a feedstock for cement production in place of the fossilised limestone currently used (cement production accounts for around 8% of industrial fossil CO2 emissions). On the high seas coccolithophores naturally produce extensive blooms, which emit the volatile gas dimethyl sulfide to the atmosphere, where it promotes formation of clouds that block solar radiation. The vision is for aquaculture nurseries onboard factory ships, cultivating both coccolithophores and bivalve molluscs, creating and maintaining blooms of coccolithophores in the oceanic high seas to sequester carbon from the atmosphere and generate cloud cover to cool the immediate environment.
Saving the planet with appropriate biotechnology: 2. Cultivate shellfish to remediate the atmosphere
Authors:   School of Biological Sciences, Faculty of Biology, Medicine and Health, The University of Manchester, UK (retired)., Moore David , Heilweck Matthias , Petros Peter ,   3, place Gouraud, F-68240 Kaysersberg, France.,   Kääpä Biotech Oy, Teilinummentie 4, 09120 Karjalohja, Finland.
Published: January 2021

Shellfish cultivation is the only industry on the planet that (a) feeds us, (b) permanently removes CO2 from our atmosphere, and, with care, could (c) engineer our marine habitats to maintain the health and biodiversity of those ecosystems into the future. About 30-50% of shellfish biomass is represented by the animals’ shells, and shellfish shell is made by converting atmospheric CO2 into crystalline calcium carbonate which is stable for geological periods of time. The human tradition of eating shellfish is recorded in the ancient middens of shellfish shells that track migrations of early humans around the world. Recent history shows increasing exploitation of marine resources by an ever-growing human population. By the end of the 19th century oysters had become a cheap staple food on both sides of the Atlantic, but this oyster dredging destroyed 85% of the world’s oyster beds. In the tropics, Giant Clams have also been fished to extinction in many Indian Ocean and Pacific waters. In the 21st century, these animals deserve to have the same vigour applied to their restoration and conservation as we applied to dredging them from the seabed. In return they will cleanse our atmosphere by permanently sequestering its excess CO2 into limestone. And we must start now, before Homo sapiens is added to the list of organisms driven to extinction by humanity’s follies.
Saving the planet with appropriate biotechnology: 3. The high seas solution
Authors:   3, place Gouraud, F-68240 Kaysersberg, France, Heilweck Matthias , Moore David ,   School of Biological Sciences, Faculty of Biology, Medicine and Health, The University of Manchester, UK (retired).
Published: January 2021

The case is made for greater use of the High Seas to replace forage fish with mussels in the diet of farmed fish and produce the increasing amounts of food that will be required by the growing human population, whilst at the same time pulling down carbon from the atmosphere with bivalve cultivation. The vision is to preserve the oceans as a healthy and sustainable food source for mankind by emphasising conservation and ecosystem balance beyond coastal waters. The plans are for huge (centralised) bivalve mollusc farming facilities on the high seas, using factory ships and offshore factory rigs (re-purposed disused oil rigs?) located on seamounts outside Exclusive Economic Zones and employing Perpetual Salt Fountains on the flanks of the seamount to bring nutrients to the farms. If properly designed (and the design and building capabilities exist throughout the offshore industries around the world), this will immediately provide (i) feed for animals and food for humans, (ii) sustainable marine ecosystems, and (iii) permanent atmospheric carbon sequestration in the form of reefs of bivalve shells.
Pengaruh Model PBL (Problem Based Learning) terhadap Pemahaman Konsep dan Kesadaran Diri Siswa pada Pencemaran Lingkungan
Authors: Kamariyah El Indahnia , Budiyono Agus
Published: January 2021

The aim of this research was to determine the effect of the PBL model on studentsÃ¢â¬â¢ conceptual understanding and self-awareness on environmental pollution. This research was an experimental research in the form of one group pretest posttest design. Through the PBL model, besides being able to increase studentsÃ¢â¬â¢ conceptual understanding, it can also increase self-awareness to protect the environment from pollution. Self-competence improvement in the form on cognitive, psychomotor and affective can be fulfilled. This research was conducted on MTS students in Pamekasan. The data analysis technique was carried out using the MANOVA test with the SPSS 16.0 program after homogeneity and normality tests were carried out. The result showed that the significance value was smaller than the specified alpha, 0.05. it shows that the PBL model has a positive and significant effect on studentsÃ¢â¬â¢ conceptual understanding and self-awareness.
Pengaruh Model Discovery Learning Terhadap Pemahaman Konsep Siswa SMA Berbantuan Software Tracker pada Materi GHS
Authors: Aprilia Maya , Lubis Patricia Hotma Minar , Lia Linda
Published: January 2021

This study aims to analyze the effect of the Discovery Learning model on the conceptual understanding of high school students assisted by tracker software on simple harmonic vibration (GHS) material. The method used in this research is quantitative research with a Quasi Experiment design type Posttest Only Control Design. The population in this study were all class X SMA Pembina Palembang which consisted of 2 classes. The sampling technique used saturated sampling because all members of the population were sampled in this study. Class X IPA 1 as an experimental class applied Discovery Learning model assisted by tracker software and class X IPA 2 as a control class applied Discovery Learning model. The data collection technique used a concept understanding essay test instrument as many as 10 questions. The results showed that the mean understanding of the concept of the experimental class students was average = 84.90 and the control class was average= 74.08. The results of the right-side hypothesis test are tcount Ã¢â°Â¥ ttable, which is 7,567 Ã¢â°Â¥ 1,653. This means that Ha is accepted. Then the conclusion is that physics learning by applying the Discovery Learning model assisted by tracker software on simple harmonic vibration (GHS) material has an influence on the conceptual understanding of high school students rather than using a learning model without being balanced with learning media.
Perbaikan Stabilitas Dinamik Sistem Tenaga Terintegrasi Pembangkit Listrik Tenaga Mikro Hidro dan Diesel Menggunakan PSS Berbasis ANFIS
Authors: Ginarsa I Made , Nrartha I Made Ari , Sultan Sultan , Muljono Agung Budi , Nababan Sabar
Published: January 2021

Power generating units should be built closed to load centers according to electric power company regulation. These units are generally small in capacity, so that makes power transfer among inter- and outer-areas is easier to be done. This study aims to improve dynamic stability of a Micro Hydro Power Plant (MHPP) on perspective of 5% load increased in Diesel Power Plant (DPP). The DPP is equipped by an ANFIS-based Power System Stabilizer (PSS) in this scheme. Two inputs with Gauss2mf membership function (MF) type and 5-number of the each MF are used to implement the ANFIS model. Simulation results show that overshoot of MHPP power angle deviation is reduced to the values of 0.023, 0.0138 and 0.0132°, for the DPP without PSS, conventional and ANFIS PSS, respectively.  Also, reduction in setting time is achieved at times >6, 4.051 and 3.553 s. It is shown that the ANFIS PSS is more effective to enhance the dynamic stability compared to other PSS