bluuebunny/crossref_metadata_2025 huggingface dataset:
OPTIMIZATION OF PROCESS OF ADSORTION OF TOXIC METALS IN LABORATORY GENERATED EFFLUENTS THROUGH CAULINITE AND DERIVATIVES
Authors: HORA P. H. A. da , SOUSA A. C. de , SERRA R. B. G. , RODRIGUES K. K. P , FIGUÊIREDO G. J. A. de
Published: August 2021

The waste generated in chemistry laboratories used in teaching, research and extension activities has been a modern concern, which in the past was neglected, but the current generation's awareness of the environmental problem has caused this issue to be rethought and practices with a more sustainable character, adopted. There is no question that reagents and solutions discarded by laboratories present themselves in concentrations inadequate to be released in conventional environments. In this sense, it is necessary to develop techniques and methods that provide the treatment and enable the emission of these effluents without causing damage to society and nature. In this work the application of crude kaolinite and its respective modifications in the literature (activated in acid and metacaulinite) in the treatment of laboratory effluent solution from a classical method of water quality analysis is carried out. These materials (crude kaolinite, acid activated and metacaulinite) were compared by factorial planning at determined intervals of time and mass in order to verify which conditions kaolinite has the best results in removing the ions in the laboratory effluent solution. The data showed that the crude species presents greater adsorption potential in relation to the modifications made, although such changes in properties are common in the specialized literature..
REAL INTEREST OF FEDERAL AND STATE INSTITUTIONS IN RELATION TO CHEMISTRY EDUCATION WITH CITIZENSHIP TRAINING
Authors: SOUSA J. A. , MACHADO I. C. P. , BARROS F. A. A.
Published: August 2021

The teaching of basic knowledge about citizenship education is one of the objectives present in the PCNEM, however, how this should be done in higher education institutions is still a question to be investigated. Research is justifiable since the teaching of chemistry is of fundamental importance for human development in the social environment and understanding how it is processed is the fundamental tool to find ways to improve our educational system. Thus, the present work sought to investigate in two educational institutions (one of the federal network and another state), if these, in their pedagogical practice, work in the discipline of Chemistry, a teaching that, besides the knowledge necessary for the job market, also focus on training for citizenship, as foreseen in the national curricular guidelines. In this research, a research on the official documents of the institutions under analysis was used as the first methodological procedure, followed by an investigation in the lesson plans provided by the teachers and, finally, an analysis of the pedagogical practice of these teachers. The results obtained in this research point out that when dealing specifically with the Chemistry discipline, it can be noted that, in the official documents (PPP and Course Plan) they present data that, in general, point to a teaching of Chemistry that contemplates the formation of citizenship, but in the plans of classes provided and in the classes observed, the signs of a teaching directed to the formation of a citizen being are very vague, not having a direct relation of the teaching of Chemistry with the formation for citizenship in the school environment.
VARIATION OF THE METABOLIC PRODUCTION OF THE ENDOPHYTIC FUNGUS DIAPORTHE SP. OF CLITORIA GUIANENSIS BENTH USING OSMAC
Authors: BOAES T. S. , ARRUDA G. L. , FERREIRA T. P. S. , CHAGAS JUNIOR A. F. , CHAPLA V. M.
Published: August 2021

The increasing number of sequenced genomes of fungi has revealed a large number of biosynthetic clusters of secondary metabolites that are still unknown, which reveals the real and vast biosynthetic capacity not yet explored and allows to understand new routes of synthesis, substances and biological properties in silenced genetic clusters. The objective of this work was to detect new natural products from the cultivation of microorganisms under different fermentation conditions using strategies as OSMAC. Three crude extracts (A, B and C) obtained from the endophytic fungus Diaporthe sp. isolated from Clitoria guianensis, were submitted to HPLC-DAD and 1H-NMR analyses. The analyzes showed differences in the production of secondary metabolites in the different culture media. Extract C led to a higher number of secondary metabolites. The crude extracts were submitted to antioxidant and allelochemical activity, the three crude extracts presented positive activity for both assays. Flavones, flavonols and xanthones were identified in all crude extracts, alkaloids in extracts A and C, and steroids and triterpenoids in extract C.
X-RAY POWDER DIFFRACTION DATA FOR A NEW THIOPHENE CHALCONE OBTAINED BY A CLAISEN-SCHMIDT REACTION
Authors: DELGADO G. E. , DELGADO-NIÑO P. , JAMALIS J.
Published: August 2021

Chalcones and their heterocyclic derivatives have gained considerable importance in recent years due to their wide range of pharmacological properties including anti-AIDS agents, anti-bacterial, anti-malarial, antiinflammatory, anti-leishmanial, anti-oxidant, anti-cancer, anti-tuberculosis anti-microbial activity. These important compounds are conventionally synthesized by Claisen-Schmidt condensation reaction in which aldehyde reacted with acetophenone in the presence of aqueous alkaline bases. Hence the importance of characterizing new derivatives using different techniques both spectroscopic and diffractometric to know their molecular and crystalline structure, but also techniques that allow to study their biological properties to know their possible applications. X-ray powder diffraction is the technique most widely used for the identification of crystalline materials and hence the importance of reporting powder patterns in the Powder Diffraction File database. Therefore, the objective of this investigation is to obtain and reported good quality X-ray powder diffraction data (d-spacing and relative intensity of observed hkl reflections) of the new hetererocyclic chalcone derivative; (E)-3-(5-bromo thiophen-2-yl)-1-(2,5-dichlorothiophen-3-yl)-2-propen-1-one. This new compound was synthesized by Claisen-Schmidt condensation method among a series of thiophene derivative chalcones as potential anti-cancer and anti-microbial agents. The powder pattern was indexed in the monoclinic space group P21/n with unit cell parameters a= 4.0323(7) Å, b= 13.551(3) Å, c= 23.511(5) Å, β= 94.27(1), Z = 4, V= 1281.1(3) Å3, and figures of merit M20= 18.2 and F30= 47.6 (0.0143, 44). All measured lines were indexed and are consistent with the monoclinic space group.
IN SILICO STUDY OF THE ANTIMICROBIAL PROFILE OF β-CITRONELLOL: POTENTIAL AS AN ANTIFUNGAL
Authors: SILVA D. F. , NETO H. D. , FERREIRA M. D. L. , FILHO A. A. O. , LIMA E. O.
Published: August 2021

β-citronellol (3,7-dimethyl-6-octen-1-ol) has been exhibiting a number of pharmacological effects that creates interest about its antimicrobial potential, since several substances of the monoterpene class have already demonstrated to possess activity in this profile. In addition, the emergence of fungal species resistant to current pharmacotherapy poses a serious challenge to health systems, making it necessary to search for new effective therapeutic alternatives to deal with this problem. In this study, the antimicrobial profile of β-citronellol was analyzed. The Prediction of Activity Spectra for Substances (PASS) online software was used to study the antimicrobial activity of the β-citronellol molecule by the use of in silico analysis. In contrast, an in vitro antifungal study of this monoterpene was carried out. For this purpose, the Minimum Inhibitory Concentration (MIC) was determined by the microdilution technique in 96-well plates in Saboraud Dextrose Broth/RPMI against sensitive strains of Candida albicans, and this assay was performed in duplicate. In the in silico analysis of the antimicrobial profile, it was revealed that the monoterpene β-citronellol had a diverse antimicrobial bioactivity profile. For the antifungal activity, it presented a percentage value with Pa: 58.4% (predominant) and its MIC of 128 μg/mL, which was equivalent for all strains tested. The in silico study of the β-citronellol molecule allowed us to consider that the monoterpenoid is very likely to be bioactive against agents that cause fungal infections.
SYNTHESIS AND CHARACTERIZATION OF THREE ORGANOTIN(IV) CARBOXYLATE OF ENT-KAURENOIC ACID: ANTIFUNGAL ACTIVITY AGAINST TRAMETES VERSICOLOR (L.: FR) PILÀT
Authors: QUINTERO-RINCÓN P. , FONTAL-RIVERA B. , CONTRERAS R. , FONSECA Y. , VELÁSQUEZ-GIL J.
Published: August 2021

The forest products industry has a very important role in the development toward a sustainable, biobased society. However, many fungi that deteriorate the main structural components of wood, such as cellulose, hemicellulose and lignin, are able to cause decay in standing trees, leading to significant losses in forest output due to impacts on biomass production. Trametes versicolor (L.: Fr) Pilát is a fungus able to attack the trees by saprotrophic and parasitic life strategies, causing white-rot of wood species, a serious problem for the industry that is focused on wood and its uses. The objectives of the work were the synthesis of organotin(IV) carboxylate of a natural product (ent-kaurenoic acid), characterization of the structures and anti-fungal evaluation against T. versicolor, as a contribution of new alternatives for the wood preservation. The synthesis of organotin(IV) complexes derived from the diterpene tetracyclic ent-kaur-16-en-19-oic acid (ent-kaurenoic acid, KA) gave three new complexes potentially active against T. versicolor. The complexes were characterized by FTIR and NMR spectroscopy. The biological activity was evaluated by a gel dilution method with superficialplate inoculation, using 60 and 120 μg/mL concentration, for the KA and the three organotin(IV) complexes. A considerably higher bioactivity was observed to the 120 μg/mL concentration, and for the complex with greater molecular weight.
TV SERIES OF CRIMINAL INVESTIGATION IN CHEMISTRY TEACHING THROUGH OF RESEARCH AND LUDIC EXPERIMENTATION
Authors: GOMES J. V. , DA SILVA F. V. , DO CARMO D. F. M. , MAIA P. J. S.
Published: August 2021

Conventional methods employed to teach chemistry imply a lot of memorization and very little contextualization, i.e., they fail to connect chemistry concepts to students’ everyday lives, which causes them to lose motivation and interest in learning the subject. In order to change this scenario, new methods have been proposed for the teaching of chemistry, such as playful experimentation, to foster contextualization of content and integration with content from other subjects. This study has aimed to evaluate student learning of chemistry concepts by means of experimentation associated to forensic science. To this end, first, students’ previous knowledge of the content was assessed by means of a questionnaire prior to the intervention. Then, they were given a problem-situation, a fictitious crime, which they had to solve. The results indicate that the teaching method under investigation is an effective teaching-learning strategy capable of contextualizing and adapting chemistry concepts to students’ cultural background, since TV crime series have become hugely popular among teenagers.
GEOCHEMISTRY AND MICROFACIES OF THE RUTEH FORMATION IN THE RUTEH AREA, CENTRAL ALBORZ, IRAN
Authors: BABAEE KHOU G. , ADABI M. H. , JAHANI D. , VAZIRI S. H.
Published: August 2021

To understand microfacies, depositional environment and geochemistry of Upper Permian rocks in Alborz region, the type sections of Ruteh Formation were studied. During the Permian, the Alborz region was a part of the east-west trending Paleotethys sea. Stratigraphic studies indicate that the Ruteh Formation in Ruteh section is composed of thin to massive limestone, argillaceous limestone interbedded with shale, is overlain by distinct laterite horizon of the Elika Formation and is underlain by the disconformity by the Dorud Formation. Facies analysis and petrographic studies led to the recognition of 11 microfacies in Ruteh section. These facies were deposited in 4 facies belts such as tidal flat, lagoon, shoal and open marine sub-environment. The Permian calcareous algae in the Ruteh Formation are widespread and well documented to determine the environment and microfacies of Permian deposits. Cementation and dolomitization are the main diagenetic processes in Ruteh Formation. Based on petrographic (size and fabric) studies, 4 dolomite types such as dolomicrite, dolomicrospar, dolospar, and dolomite cement were recognized. Seawater was the main source of Mg for early diagenetic dolomite (type 1), while Mg for late diagenetic dolomite (types 2,3,4) probably were sourced by shale pressing processes and pressure solution. Major and minor element studies led to there cognition of aragonite mineralogy. The geochemical study illustrates that these carbonates were affected mostly by meteoric diagenesis, which is occurred in a semi-close to open diagenetic system.
VT6 TITANIUM ALLOY WEARABILITY INCREASE VIA IMPLANTATION OF COPPER AND ALUMINUM IONS
Authors: OVCHINNIKOV V. V. , UCHEVATKINA N. V. , KURBATOVA I. A. , LUKYANENKO E. V. , YAKUTINA S. V.
Published: August 2021

The relevance of the article is due to the fact that the use of titanium alloys within friction joints is restrained by their low resistance to wear while traditional methods of increasing their wear resistance are ineffective. The objective of this work was to study the processes occurring on the surface of VT6 titanium alloy samples when implanting with copper and aluminum ions, as well as in friction. Elemental composition, structural-phase state, mechanical and tribological properties of VT6 titanium alloy surface layers modified by aluminum and copper ions during the high-intensity ion-implantation process was being researched. As can be seen from the undertaken studies, the mode of the high-intensity ion-implantation process makes it possible to obtain ion doped surface layers of VT6 alloy containing TiAl, Ti3Al, Ti3Cu, Ti2Cu, TiCu finely dispersed intermetallic phases and a solid solution of aluminum and copper in titanium of composition varying in depth. The thickness of the ion-doped layer, the average grain size of the intermetallic phases (from 18 to 55nm) and their conglomerates (from 45 to 280 nm) increases with the increase in implantation dose from 2⋅1017 to 1.2⋅1019 ion/cm2 while aluminum implantation (from 0.42 to 2.1 μm) is in progress. It has been shown that the implantation of aluminum and copper ions into VT6 alloy leads to a considerable increase in its microhardness and wearability. Based on the research results, a conclusion on the positive effect of a structural-phase state of ion-doped titanium layers on their mechanical and tribological properties of VT6 titanium alloy has been drawn.
Морфометрические и гидрохимические характеристики озер сельских поселений Усть-Алданского района (Центральная Якутия)
Authors: Ушницкая Лена Алексеевна , Городничев Руслан Михайлович , Пестрякова Людмила Агафьевна
Published: September 2021

Озера Центральной Якутии при своей слабой изученности активно используются населением сельскохозяйственных поселений в качестве источника питьевой воды. Для восполнения существующего недостатка сведений авторами охарактеризована лимнологическая структура водоемов 16 населенных пунктов, входящих в 10 сельских поселений (наслегов) Усть-Алданского района (улуса). По морфогенетической классификации И.И. Жиркова, преобладающая часть исследуемых объектов принадлежит озерам термокарстового генезиса. Остальные водоемы эрозионно-термокарстовые и водно-эрозионные. В работе применена типизация озер по их максимальной глубине: очень малые (< 3,12 м), малые (до 6,25 м), средние и повышенные (до 20 м). Подчеркнуто, что в исследуемом районе преобладали очень малые озера. Проведен кластерный анализ по набору основных морфометрических и физико-химических характеристик озер, который показал, что все изученные водоёмы были объединены в пять групп. Исключение составляли пять водоемов, имеющие наиболее высокие значения отдельных параметров. Впервые для района исследования установлены зональные изменения общей жесткости воды, а также концентраций, растворенных в воде ионов кальция и магния. Значения указанных физико-химических параметров воды озер снижаются по мере продвижения с юга на север района исследования. Морфометрические и гидрохимические параметры района исследований ранее не были измерены.
Retoriken
Authors: Aristoteles  , Akujärvi Johanna
Published: August 2021

Få tänkare har varit så inflytelserika som Aristoteles. I detta klassiska verk formulerar Aristoteles grunderna till retoriken, teorier som i våra dagar är mer aktuella än någonsin. Nu finns ett av humanvetenskapernas viktigaste verk för första gången på svenska. Med insiktsfulla och klargörande noter tar översättaren Johanna Akujärvi med läsaren på en resa till det antika Grekland, till retorikens, filosofins och vetenskapernas födelse. “Låt retoriken vara en förmåga att i varje enskilt fall uppfatta det som kan vara övertygande eller övertalande” (Retoriken 1.2.1) “Det är också uppenbart att dess uppgift inte är att övertyga eller övertala, utan att se det övertygande eller övertalande i varje enskildhet” (Retoriken 1.1.14) ”Den som förväntar sig att retorik ska handla om förmågan att välja rätt ord och uttryck och om att utforma sitt tal, har förvånansvärt lite att finna i Aristoteles text. Det centrala för Aristoteles är vilka typer av tankegångar som leder till övertygelse, inte vilken språkdräkt dessa tankegångar ska ges. [En talare] övertygar framförallt i kraft av sina tankar, inte i kraft av att dessa tankar är förpackade i vackra ord eller slagkraftiga formuleringar. För Aristoteles är det just innehållet som är retoriken. Retoriken […] hjälper oss att upptäcka allt som talar för och emot ett visst beslut och ett visst handlande, vilket i sin tur skulle innebära att den (också) kan ses som ett slags konst i beslutsfattande i det offentliga livet” ur Janne Lindqvists introduktion. “Akujärvi [har] gett oss en genomarbetad och pålitlig svensk version av Retoriken […] de fylliga inledningarna är en god hjälp in i texten. Till intrycket hör också att boken är väl producerad: formgivningen är behaglig och denna nya översättning av Retoriken är givetvis ett obligatorium för varje svensk retoriker.” David Westberg, universitetslektor i grekiska vid Institutionen för lingvistik och filologi, Uppsala universitet, i Rhetorica Scandinavica 68 (2014).
Retorikens imperium. Retorik och argumentation
Authors: Perelman Chaïm
Published: August 2021

Kommunikation är inte ens i lyckliga undantagsfall intresselöst informationsutbyte mellan jämlikar; sociala, kulturella och religiösa spänningar och konflikter utspelar sig i vårt tal och våra samtal. Det finns helt enkelt inte något neutralt, förnuftigt och från egenintressen och retorik befriat språkbruk i vilket den egentliga sanningen om världen, moralen och oss själva kan uttryckas. Perelmans ”Nya Retorik” ger oss en möjlighet att se och förstå detta ofrånkomliga språkliga våld, hur det fungerar – den klassiska retorikens lära om betydelsen av känslor (pathos) och värderingar (ethos) för våra förnuftiga (logos) beslut är central på denna punkt – och kanske också hur det kan hanteras. Perelman påminner oss helt enkelt om en av den antika retorikens centrala insikter: allt språkbruk, från demagogens brandtal till filosofernas stilla seminariesamtal, utspelar sig i situationer som formas och helt och hållet genomsyras av intressen, fördomar, ogenomtänkta värderingar och dolda preferenser. Ur Mats Rosengrens introduktion. I Retorikens imperium sammanfattar och utvecklar Perelman sin ‘nya retorik’ – Traité de l’argumentation – la nouvelle rhétorique från 1958. Retorikens imperium skrevs 1977 och har kommit i flera utgåvor på franska. Denna 2:a svenska utgåva följer den franska 1988-utgåvan.
AISI P20S Kalıp Çeliğinin İşlenebilirliğinin İncelenmesi
Authors: COŞKUN Mücahit , ÇİFTÇİ İbrahim , DEMİR Halil
Published: August 2021

Bu çalışmada, kalıpçılık sektöründe yaygın olarak kullanılan AISI P20S kalıp çeliği tercih edilmiştir. Farklı kesme parametreleri (kesme hızı, ilerleme miktarı ve kesme derinliği) kullanılarak gerçekleştirilen deneylerde değişkenlerin kesme kuvveti ve yüzey pürüzlülüğü üzerine etkileri incelenmiştir. Kaplamalı karbür kesici takım kullanılarak frezeleme yöntemi ile gerçekleştirilen bu deneylerde işleme parametreleri olarak kesme hızı ve ilerleme miktarının dört farklı değişkeni, kesme derinliğinin ise iki farklı değişkeni kullanılmıştır. Elde edilen sonuçlar değerlendirildiğinde artan kesme hızına bağlı olarak kesme kuvveti değerlerinde azalma meydana gelirken ilerleme miktarının artan değerlerinde ise kesme kuvveti değerlerinde artış tespit edilmiştir. En yüksek kesme kuvveti (138,1 N) 170 m/dak kesme hızı, 0,253 mm/diş ilerleme miktarı ve 1,5 mm kesme derinliğinde ölçülürken, en düşük kesme kuvveti değeri (45,23 N) ise 0,75 mm talaş derinliğinde, 260 m/dak kesme hızı, 0,075 mm/diş ilerleme miktarında ölçülmüştür. Ayrıca artan kesme hızı değerleri yüzey pürüzlülüğünün azalmasına, artan ilerleme miktarı ve kesme derinliği değerlerinin ise yüzey pürüzlülüğünün artmasına neden olduğu görülmüştür. En düşük yüzey pürüzlülüğü (0,273 µm) 260 m/dak kesme hızı, 0,075 mm/diş ilerleme hızında ve 0,75 mm kesme derinliğinde ölçülürken, en yüksek yüzey pürüzlülük değeri (1,552 µm) ise 170 m/dak kesme hızı, 0,253 mm/diş ilerleme miktarı ve 1,5 mm kesme derinliğinde oluşmuştur. Sonuç olarak yüksek kesme hızı, düşük ilerleme miktarı ve kesme derinliği değerlerinin en iyi işleme çıktılarının elde edilmesinde etkili olduğunu söylemek mümkündür.
Cr(VI) Elektrokaplama Banyolarının Cr(III) Banyolarına Dönüştürülmesinde Etkin Faktörlerin Belirlenmesi
Authors: KATIRCI Ramazan , ALTINSARI Abdülaziz
Published: August 2021

Krom (Cr) kaplama dekoratif ve fonksiyonel amaçlı yaygın biçimde kullanılmaktadır. Yüksek sertlik, parlak görünüm, mükemmel aşınma ve korozyon direncine sahiptirler. Cr(VI) toksik bir malzemedir. Bu yüzden Cr(VI) banyolarından elde edilen Cr kaplama, çalışan sağlığı ve çevre açısından büyük risk oluşturmaktadır. Bu yüzden benzer kalite ve özelliklere sahip, ayrıca toksik ve çevreye zararlı etkisi olmayan Cr(III) banyoları, Cr(VI)’ya iyi bir alternatiftir. Daha az zararlı ve kolay arıtılabilir olması tercih sebebidir.

Bu makalenin amacı, mevcut Cr(VI) banyolarının uygun maliyetle Cr(III) banyosuna dönüştürülerek doğaya deşarjının önlenmesidir. Bunu sağlamak için 3 farklı firmadan Cr(VI) kaplama banyosu toplanmış, kimyasal dönüşüm yöntemli ile Cr(III) kaplama banyosuna dönüştürme çalışması yapılmıştır. Dönüşüm sırasında Cr kaplamanın kalitesini etkileyen önemli faktörleri belirlemek için deneysel tasarım metodolojileri uygulanmıştır. Ana faktörlerin etkilerini ve etkileşimlerini belirlemek ve dönüşüm sürecini optimize etmek için ½ kesirli faktöriyel deney tasarım metodu kullanılmıştır. Sonuçlar istatistiksel olarak değerlendirilmiş ve optimum dönüşüm parametreleri belirlenmiştir.
PENGARUH KESELAMATAN KERJA DAN KESEHATAN KERJA TERHADAP KINERJA KARYAWAN PT. ANGKASA KARGO UNIT REGULATED AGENT TERMINAL KARGO BANDARA SOEKARNO – HATTA TAHUN 2019
Authors: Keke Yulianti , Tobing Noel Gontu L. , Tanjung Irza
Published: September 2021

PT. Angkasa Pura Kargo berfokus pada layanan di bidang jasa operator terminal kargo, pelayanan kargo dan pos udara serta pengembangan prasarana dan sarana terminal kargo di semua bandara yang berada di wilayah barat Indonesia. Angkasa Pura Kargo beroperasi di sejumlah bandar udara Indonesia yang dikelola oleh Angkasa Pura II (Persero). Angkasa Pura Kargo juga memiliki unit bisnis di bidang pemeriksaan keamanan terhadap kargo dan pos (Regulated Agent). Penelitian ini bertujuan untuk menganalisis dan mengetahui seberapa besar pengaruh Keselamatan Kerja dan Kesehatan Kerja terhadap Kinerja Karyawan . Penelitian ini menggunakan Penelitian Kuantitatif dengan menggunakan sampel Accidental sebanyak 38 responden di Unit regulated agent PT. Angkasa Pura Kargo . Berdasarkan Analisis yang telah di lakukan menunjukan bahwa terdapat pengaruh yang positif dan signifikan Keselamatan Kerja Terhadap Kinerja Karyawan, selain itu hasil analisis ini menunjukan bahwa terdapat pengaruh yang signifikan dan positif oleh Kesehatan Kerja terhadap Kinerja Karyawan, dan terdapat pengaruh yang signifikan dan positif oleh Keselamatan Kerja dan Kesehatan Kerja secara simultan terhadap Kinerja Karyawan
KUALITAS PELAYANAN DAN HARGA TERHADAP LOYALITAS PELANGGAN PERUSAHAAN JASA ANGKUTAN BARANG
Authors: Widiyanto Prima , Aranza Firda , Hernawan M. Arif
Published: September 2021

Tujuan kajian ini  untuk menganalisis kualitas pelayanan, harga dan loyalitas pelanggan, serta menguji pengaruh variable kualitas pelayanan dan harga terhadap loyalitas pelanggan PT. Ridho Makmur Sentosa di Jakarta Timur. Jenis penelitian Deskriptif kuantitatif, teknik pengambilan sampel menggunakan sampel jenuh, pengumpulan data melalui kuesioner secara online kepada 37 pelanggan dari PT. Ridho Makmur. Teknik Analisa data menggunakan metode analisis regresi linear berganda, uji koefisien determinasi, uji korelasi berganda, uji T, dan uji F. Hasil kajian menunjukkan bahwa terdapat pengaruh antara Kualitas Pelayanan (X1) dan Harga (X2) terhadap Loyalitas Pelanggan (Y) PT. Ridho Makmur Sentosa dimana Y = -2.259 + 0.909X1+ 0.034X2 memiliki R = 0,735 mempunyai pengaruh yang kuat dan positif antara variabel X1 dan X2 terhadap Y.
Training Communication Skills During COVID-19 Pandemic as a Part of Educational Process in Dental Medicine
Authors: Peeva Yulia Bogdanova
Published: August 2021

Introduction: The training of dental students in communication skills has been faced with a new challenge related to the limitations of COVID 19. Obtaining informed consent and deciding on the need for treatment are part of the twoway dental-patient communication process. While training in Public Dental Health, the students learn the basic rules of patient-oriented communication, discussing models for successful conversation with the patient and the types of verbal and nonverbal communication. The main educational goal is to build dental professionals who can adequately accept the needs of patients, help to realize them and generate trust. The specific educational goal is to organize and discuss specific, evidence-based clinical skills for communicating with patients. Materials and methods: A literature search has been performed and alternatives have been discussed with colleagues. The information search has been conducted using the Medline database (PubMed), Science Direct, and Web of Science. Discussion: The development of the social element has been observed in the relationship dentist - patient. Against the background of growing commercialism in the provision of dental services, patients are feeling increasingly uncertain whether the treatment offered is the needed one. Therefore, the patient must be at the centre of modern dentistry where the primary role has the Medical University in educating ethical principles and building doctors dedicated to humanity. Conclusion: The challenges in teaching students to communicate effectively with the patient are significant, especially in a global pandemic. The roots of philanthropy and empathy are laid back in time. They were described by the first teachers, physicians and philosophers in Medicine such as Hippocrates, Socrates, Plato, Aristotle and others. It is our responsibility just to repeat them.
Comparison of Sharia Stock Prices and Trading Volumes Before and During COVID-19
Authors: Ameliana Yunus Yana
Published: August 2021

Before making an investment, entrepreneurs or investors must consider the benefits and financial risks obtained. So, investors need to take action in investing, meaning that investors need to form a portfolio by selecting several assets so that financial risk can be minimized without reducing the expected. The COVID-19 pandemic has significantly impacted the economy, especially investors, informing an optimal portfolio. This study aims to determine the optimal portfolio formation during the COVID-19 pandemic. In this study measurement, we used variables in the form of stock prices and stock trading volumes before and during COVID-19 pandemic. This study shows a comparison, but not so significant, between stock prices before and during the pandemic. Based on the survey conducted, the following results were found, i.e., first, shows an insignificant difference between prices before and after the rights issue announcement. The stock trading volume indicates a significant difference between the stock trading volume before and after the rights issue; trading volume increases after the information of the rights issue. By implementing companies affected by COVID-19 pandemic, we can watch the prices that occur around the announcement date. Investors can make a reason about their investments in shares of issuers affected by COVID-19 pandemic.
Effects of pH on physiological parameters of blood and growth performance of Asian
Authors: Vo Tuan V.
Published: September 2021

Effects of pH on blood physiological parameters and growth performance of Asian bumblebee catfish (Pseudomystus siamensis) were carried out in laboratory conditions. The experiment was set up in 8 weeks at different pH water levels. The results showed that the cumulative mortality of Asian bumblebee catfish (4 - 6 g/fish) in 24 hpi was 100% at pH = 11, 70.83% at pH = 10 and 62.5% at pH = 3. No mortality of fish was observed at pH = 4, 5, 6, 7, 8, 9 at 24 hpi. The high content of glucose was recorded in fish cultured in water with low (4.02 mmol/L at pH = 3) and high (3.22 mmol/L at pH = 10) pH levels. After 8 weeks of culture, the highest content of glucose was observed at pH = 8 (1.10 mmol/L). The daily weight gain and specific growth rate in weight of fish were 0.02 - 0.08 g/day and 0.35 - 0.99%/day, respectively. The daily length gain specific growth rate in length were 0.02 - 0.04 cm/day and 0.22 - 0.53%/day. The highest survival rate of fish was recorded at pH = 6 (95.96%) and the lowest survival rate of fish was recorded at pH = 8 (60%).
Research and design of a robot for pruning street trees
Authors: Dao Vinh D.
Published: September 2021

Trees are planted on street to improve the general landscapes. The landscape's original design is manually maiternaned by the workers. Thus, a robot that can assist workers in trimming the trees is necessary. A self-propelled robot has been developed in order to reduce the risk to humans. The new developed robot would trim up to 1180 m2 of tree contour when the speed is set at 1 km/h. This robot can follow the road contour and trim tree automatically.
Variceal Bleeding is Leading Cause of Upper GI Bleed: A Study from Northern Part of Pakistan
Authors: Ahmed Tanveer , Kamal Mustafa , Riaz Ramish , Ali Mashhood
Published: September 2021

Background: Upper gastrointestinal bleeding (UGIB) is a leading cause of hospitalization in medical emergencies around the world, with a high death and morbidity rate. In all cases of upper gastrointestinal bleeding, endoscopy is the primary diagnostic tool. Key management of depends on diagnosing the exact cause of disease. Methodology: This descriptive study was carried out at Gastroenterology Department, PIMS, Islamabad from January 2019 to December 2019. All patients having history of upper gastrointestinal bleed were included in the study. Patients unfit for endoscopy i.e. with perforation, peritonitis, comatose needing intubation and those unwilling to undergo the procedure were excluded. Total 490 patients fulfilled the criterion. The cause of GI bleed was noted upon endoscopy. Data was noted on set performa and further statistical analysis was performed via SPSS v 26. Results: Among 490 patients, 298 (61%) were males while 192 (39%) were females. Most common age group presenting with upper GI bleed belongs to old age group i.e. had age above 60 years (n=235, 47.9%) followed by 40 to 59 years (n=174, 35.5%).Most common cause of upper GI bleed was found to be variceal bleed (n=292, 59.5%), followed by ulcer bleed (n=88, 18.0%) and stomach cancer (n=28, 6%). In 82 (17%) cases no reason for gastrointestinal bleed could be found out. Chi-square test showed Variceal bleed to be the most significant reason (χ2=65.2, P-Value<0.001) of Upper GI bleed. Conclusion: Variceal bleed is the most significant cause of upper GI bleed in our study population. This trend can be attributed to increased prevalence of hepatitis C in Pakistan. Special attention to the patient’s symptoms especially with history of HCV can help in early diagnosis and timely management. Keywords: Variceal Bleed, Upper GI Bleed, Endoscopy, Ulcer, Hepatitis C.
Frequency of Fits in Pregnant Women with Previously Controlled Epilepsy
Authors: Hussain Jawad , Saqib Muhammad , Khan Nadia , Khan Sohail , Jan Fawad , Iqbal Muhammad Shahid
Published: September 2021

Background: Epilepsy drug therapy advancements have resulted in an increasing number of childbearing age well-controlled epileptic women. It is not surprising then, that the impact of pregnancy on the progression of epilepsy has sparked renewed interest. Aim: The aim of current study was to evaluate the frequency of fits or seizure in pregnant women with previously controlled epilepsy. Materials and Methods: This cross-sectional study was carried out on 98 pregnancies of 84 epileptic women during the period between August 2019 and August 2021in the department of neurology and gynaecology of Ayub Teaching Hospital, Abbottabad. All the pregnant women with less than three verified epileptic fits, pregnancy ended with abortion and incomplete seizure or fit frequency were excluded. All the patients were referred to Gynaecology and Neurology department for early pregnancy and planning by a neurologist and gynaecologist. Data analysis was done with SPSS version 23 with p<0.05 as statistical significance. Results: The association of fits frequency on pregnancy was studied and monitored in 84 epileptic women out of 98pregnancies. About 49 (50%) pregnancies were not affected by fits frequency. The fits frequency was increased in 36 (37%) pregnancies or puerperium while decreased in 13 (13%) pregnancies. Sleep deprivation or drug regimen on-compliances associated was increased in 30 (30.6%) pregnancies. Out of 19pregnancies, eight (42%) had improvement with sleep deprivation correction during none months pre-gestation. Antiepileptic drugs with low plasma concentration of uncontrolled epilepsy during pregnancy were found in 47%. Conclusion: Sleep deprivation, Non-compliance during pregnancy, and before and after pregnancy inadequate therapy all have a significant impact on the course of epilepsy during pregnancy. With proper medical care, pregnancy appears to have only a minor impact on the course of epilepsy. Keywords: Epilepsy, Frequency fits, Sleep Deprivation.
Comparative Effects of Suture and Non-Suture Surgical Techniques on Platysma after Thyroid SurgeryFast Food Intake Affecting Physical and Mental Well-Being of Medical Students in Lahore
Authors: Noor Sana , Kayani Aemun Shaukat , Shahid Noor , Ihsan Alarozia , Rasheed Sara , Tabassum Masood Nizam
Published: September 2021

Background: Fast food consumption is being significantly affecting physical and mental health of children and adolescent. Unhealthy diet is designated as the major cause of various medical illness. Among these most common is obesity. This also leads to anxiety, sleep disorder, verbal abuse and hence responsible for mental issues as well. Aim: To observe factors affected by fast food consumption among youngsters. Methodology: A cross-sectional study design was used to conduct a study for factor analysis of physical and mental health issues related to fast food consumption at a private medical college in Lahore, Pakistan. The data was collected using self-designed questionnaire to collect information about the physical health, mental health, routine exercise, workout and fast -food consumption attitude. Results: Exploratory Factor Analysis (EFA) was used to access the total explained variation through varimax rotation. Kaiser-Meyer Olkin (KMO) and Bartlett test of sphericity was seen to have a p-value 0.000 which is significant. Significant results of KMO and Bartlett test allows for EFA. It has been seen that thirteen factors contributed to explain more than 70% of the variation Conclusion: Most commonly affected factors were physical and mental well-being that explained maximum variation. These factors comprised minor mental issues like emotional health, anger, mood swings and anxiety and physical health such as worse effect on health, less physical activity/ inactivity and irregular exercise. Major Keywords: Fast food, Mental Health, Obesity, Physical Health, Risk.
Relation between Consumption of Fast Food with its Associated Physical and Mental Aspects of Health among Medical Students in Lahore, Pakistan; A Cross Sectional, Comparative Study
Authors: Noor Sana , Kayani Aemun Shaukat , Shahid Noor , Jalal Ch Fatima , Asghar Javeria Ali , Tabassum Masood Nizam
Published: September 2021

Background; Unhealthy dietary patterns or fast-food consumption increase the probability of physical health problems. Junk food consumption effect the physical appearance as well as can be the cause of mental illness. Aim: The main aim of the study is o observe the perception of junk food consumption and the associated physical and mental health problems. Methodology; The data was collected using self-designed questionnaire on junk food consumption and related mental or physical issues. The questionnaire was distributed physically to the students with their written consent. The data was collected from 200 students enrolled at a private medical college in Lahore. The data was analyzed and chi-square test of association was used to observe and any link between junk food consumption and health issues. Results; It was seen that 90% of the total female students were ate fast food while, it was evident in 96% for the male students in comparison to female students. The overall fast-food consumption is 70%. It was seen that fast food consumption has been significantly associated with mental health. Fast food consumption was also found to be associated with less physical wellbeing and risk of obesity. Conclusion; Male students were found to be more involved in junk food consumption. The significance link of fast-food intake was observed with progress in mental health. Intake of fast food also found to be associated with anger and depression. Consumption of fast-food increases the risk for weight gain and obesity. Keywords: Consumption, Fast food, Junk food, Obesity, Risk.
Musculoskeletal Pain and its Associated risk factors in school teachers of Lahore
Authors: Khalid Fariha , Asif Muhammad , Iqbal Muhammad Hussain , Sonam Sawera , Iqbal Zarmeen , Ahmad Ashfaq
Published: September 2021

Aim: To find out the occurrence of musculoskeletal pain and its associated risk factors in schoolteachers of Lahore. Study Design: Cross-sectional study. Place and duration of Study: The study was done in different public and private schools of Lahore from December 2020 to May 2021. Methodology: In this observational study, 921 schoolteachers, fulfilling the eligibility criteria, from different school participated. The data was collected by using a self-administered Performa. Results: In the survey 921 participants participated among which 686(74.8%) were males and 232(25.2%) were females. Out of 921 participants, a high percentage 652(70.8%) had Musculoskeletal pain while 269(29.2%) reported no pain in any region. The frequency of pain in neck, upper extremity, low back and lower extremity in l was 157(17%), 258(28%), 153(16.6%) and 84(9.1%) in multiple sites of body. The frequency of participants with mild, moderate, severe and worst pain was 198(21.5%), 324(35.3%), 110(11.9%) and 20(2.2%) respectively. Conclusion: This study concluded that the Musculoskeletal pain affect schoolteachers and it is highly associated with history of trauma, the hours of standing and the back support while sitting while less association of overhead activities such as writing on board. Keywords: Musculoskeletal pain, schoolteachers, electronic devices, risk factors, MSK pain
EFFECTS OF ORGANIC MANURES AND INORGANIC FERTILIZERS ON GROWTH, YIELD AND SHELF LIFE OF TOMATO (LYCOPERSICON ESCULENTUM MILL.)
Authors: Sadiq Sameena , Modi Suchi
Published: September 2021

The present investigation entitled “Effect of Organic manure and Inorganic fertilizers on growth, yield and shelf life of tomato (Lycopersicon esculentum Mill.) was conducted during the kharif season 2020 to assess the effects of inorganic and organic fertilizers on growth parameters, yield attributes and shelf life of tomato variety Pusa Ruby.
The experiment was laid in a rendomized block design (RBD) with 8 treatments each replicated thrice.The treatments consisted of different levels of organic fertilizers and inorganic fertilizers. The treatments used were T Control (with 1 no fertilizer), T - 100% NPK RDF (120:80:60),T - 100% CD @20t/ha, T - 100% VC @20t/ha, T - 75% NPK + 25% 2 3 4 5 CD @5t/ha, T - 50% NPK + 50% CD @10t/ha, T - 75% NPK + 25% VC @5t/ha, T - 50% NPK + 50% VC 6 7 8 @10t/ha. Among 8 treatments, treatment T (50% NPK + 50% VC) recorded maximum height (74.30 cm), maximum 8 number of branches (9.8), maximum number of flowers/cluster (7.8), minimum days to first fruiting (49.6 days), maximum number of fruits/cluster (6.4), maximum number of fruits per plant (19), maximum weight per fruit
(68.86), maximum yield per plant (1.42) and maximum shelf life (11). However, treatment T - 100% VC showed 4 minimum days to 50% flowering (39.8) and maximum number of flower cluster per plant (14.8). Thus, it could be concluded that the use of combination of organic and inorganic fertilizers has potential in improving growth, fruit yield and shelf life of the tomato Pusa Ruby.
EFFECTS OF ORGANIC MANURES AND INORGANIC FERTILIZERS ON GROWTH, YIELD AND SHELF LIFE OF TOMATO (Lycopersicon esculentum Mill.)
Authors: Sadiq Sameena , Modi Suchi
Published: August 2021

The present investigation entitled “Effect of Organic manure and Inorganic fertilizers on growth, yield and shelf life of tomato (Lycopersicon esculentum Mill.) was conducted during the kharif season 2020 to assess the effects of inorganic and organic fertilizers on growth parameters, yield attributes and shelf life of tomato variety Pusa Ruby. The experiment was laid in a rendomized block design (RBD) with 8 treatments each replicated thrice.The treatments consisted of different levels of organic fertilizers and inorganic fertilizers. The treatments used were T Control (with no fertilizer), 1
T - 100% NPK RDF (120:80:60),T - 100% CD @20t/ha, T - 100% VC @20t/ha, T - 75% NPK + 25% CD @5t/ha, T - 2 3 4 5 6 50% NPK + 50% CD @10t/ha, T - 75% NPK + 25% VC @5t/ha, T - 50% NPK + 50% VC @10t/ha. Among 8 treatments, 7 8 treatment T (50% NPK + 50% VC) recorded maximum height (74.30 cm), maximum number of branches (9.8), 8
maximum number of flowers/cluster (7.8), minimum days to first fruiting (49.6 days), maximum number of fruits/cluster (6.4), maximum number of fruits per plant (19), maximum weight per fruit (68.86), maximum yield per plant (1.42) and maximum shelf life (11). However, treatment T - 100% VC showed minimum days to 50% flowering (39.8) and 4 maximum number of flower cluster per plant (14.8). Thus, it could be concluded that the use of combination of organic and inorganic fertilizers has potential in improving growth, fruit yield and shelf life of the tomato Pusa Ruby.
SUSTAINABLE SOLUTIONS OF WASTE MANAGEMENT FOR ORGANIZATION – A CASE STUDY OF TECHNO INDIA NJR INSTITUTE OF TECHNOLOGY, UDAIPUR
Authors: Choudhary Sangeeta
Published: August 2021

Waste generation in India has been increasing, and there are no adequate ground implemented policies for the safe disposal of waste. It increases land and water pollution. Some industries execute zero waste management at their level, but that is not enough to reduce the load on the city's main landfill and disposal site. It is the need of the hour to implement the micromanagement of waste. There are large numbers of schools and colleges in India which generate the same type of waste. These campuses can demonstrate and influence the students, faculties, and other staff and visitors to adopt and successfully implement sustainable practices. Schools and colleges can play an essential role in changing society by teaching students about the new waste management technologies. There are numerous opportunities to introduce new
technologies into waste management. The challenge is to encourage the development of technologies that are most conservative of natural resources and that are cost-effective. This paper shows the zero waste management policy in Campus of Techno India NJR Institute of Technology, Udaipur. Separation of waste at source is a vital and essential part of zero waste management. Biodegradable waste is used for composting, and plastic is used for brick manufacturing, a college start-up project. E-waste and hazardous waste are handed over separately to authorized recycling firms.
EVALUATION OF MICROBIAL LOAD AND SELECTED HEAVY METALS CONTAMINATION IN THE RIVER BEAS (PUNJAB) INDIA
Authors: Maan Baljot Singh , Hassan Syed Shabih
Published: August 2021

Aim: To analyse the heavy metal contamination and microbial load in upstream (Talwara), midstream (Urmar Tanda) and downstream (Harike Pattan) stretches of the river Beas in Punjab.
Methodology: Month-wise samples were collected in triplicate during the period of May to December, 2019. Heavy metal parameters such as Arsenic, Cadmium, Nickel, Lead and Zinc were analysed by Atomic Inductively Coupled Plasma Mass Spectrometry following standard protocol. Microbial load in water samples was calculated in terms of Total Plate Count, Total Coliform and Faecal Coliform as per following standard protocol. Statistical analysis involved calculating Analysis of Variance at 5% significant level (p<0.05).
Results: The study revealed that heavy metal parameters like Arsenic, Cadmium, Nickel, Lead and Zinc ranged in mgl from 0.0 to 0.009, 0.0 to 0.02, 0.0 to 0.004, 0.0 to 0.001, and 0.0 to 0.036 respectively. Total Plate Count ranged from 0.32 4 5 -1 -1 x10 to 3.2 x10 cfu ml whereas, Total Coliforms and Faecal Coliforms ranged from 4.0 to 1100 MPN 100 ml and 0.0 to -1 460 MPN 100 ml respectively. The mean concentrations of analysed metals were recorded in the order of Zinc > Cadmium > Arsenic >Nickel >Lead; and most of them were under the permissible limits; however, the presence of faecal coliforms in the water is alarmingly high at Harike Pattan.
Interpretation: This investigation revealed that the river Beas water is suitable for supporting aquatic life, bathing, irrigation and other purposes. The microbial load and the heavy metal parameters need to be monitored regularly, so that their adverse effects on living beings or aquatic organisms may be minimized. River stretch near Harike Pattan and Urmar Tanda being an important habitat of endangered freshwater Dolphin (Platanista gangetica minor), Smooth-Coated Otter (Lutrogale perspicilliata) and Ghariyal (Gavialis gangeticus) is more vulnerable to the toxic levels of heavy metals and
contamination of faecal coliform.
TREE DIVERSITY OF KANWAR TAAL BIRD SANCTUARY, BEGUSARAI, BIHAR
Authors: Kumar Rahul , Pandey Vijay Vardhan
Published: August 2021

The present work has been carried out to enumerate the different trees species of Kanwar Taal, a Bird Sanctuary, which was added in Ramsar wetlands sites (no. 2436) 'Wetlands of international importance' (Ramsar 2020) and considered as one of the largest natural oxbow lakes in the Indian subcontinent. It is one of the most important wetlands for waterfowl in the Gangetic plain supporting a huge number of various species
of migratory and resident avifauna. A total of 61 species of trees include two bamboo species belonging to 51 genera and 29 families have recorded from the Kanwar Taal of Begusarai, Bihar. The recorded trees species with their Vernacular, English names uses have been provided with their respective families and botanical name alphabetically.