bluuebunny/crossref_metadata_2025 huggingface dataset:
Harnessing technology in chemistry education
Authors: Seery Michael K
Published: October 2018

Using technology when teaching or to support learning is becoming more common place. This perspective discusses the use of technology in our teaching by considering it from the viewpoint of what we need to support our curricula, investigating how technology can help. Nine approaches that have become popular in recent years are outlined with particular emphasis on curriculum delivery problems that they could address, and some recent literature examples of where they have been used. The integration of technology argued for is considered under the umbrella of cognitive load theory, and arising out of this, an approach of how we might progress the use of technology in our teaching is suggested.
An Introduction to the Chemistry of the Sea (2nd. ed.) by Michael EQ Pilson
Authors: Rees Simon
Published: October 2018

This engaging and comprehensive volume serves as an excellent introduction to this topic for students with a broad range of backgrounds in the physical sciences. The author engages the reader from the start with a succinct and fascinating history of physical oceanography and reminds us of the lasting impact of the H.M.S. Challenger expedition (1873–1876) on this field. This book combines these past achievements with contemporary research to inform the reader with a diverse and comprehensive overview of the chemistry of the sea.
Electricity and Magnetism (3rd ed.) by E Purcell and D Morin
Authors: Nolan Sam
Published: October 2018

This book is an excellent updated introduction to this classic 50 year old text for 1st and 2nd year undergraduate electromagnetism. Starting from the basic concept of electronic charge and building in neat sequential units, from electrostatics, through current and into magnetism, it provides an excellent introduction to Maxwell’s equations.
Bond-shear Behavior of FRP Rods as a Function of Attachment Configuration
Authors: Budipriyanto Agung , Han Ay Lie , Hu Hsuan Teh
Published: October 2018

The use of external reinforcement to improve or enhances the flexural capacity of a member depends on the transfer capacity, and the failure behavior of the composite between the reinforcement, the epoxy resin and the concrete. The most influencing factor is the bond-shear capacity between the rod and the epoxy, and the epoxy to the concrete. Fiber Reinforced Polymer (FRP) rods are the latest alternate for fulfilling the external reinforcement scheme. In the field, the mandated embedment depth as outlined by the ACI 440 code, could customary not be achieved since factors such as the depth of the concrete cover, and presence of stirrups limits the space. This study is aimed to evaluate the effect of FRP rod configurations with respect to the concrete surface, to the effectiveness of external reinforcement. The study looked into the bond-shear capacity as well as the mode of failure, influence by the rod attachment depth. It was shown that the embedment depth significantly influenced the failure mode, and therefore the strain transfer capacity from the concrete to the rods.
UPAYA MENINGKATKAN KEAKTIFAN DAN PRESTASI BELAJAR MATEMATIKA DENGAN STUDENT TEAMS ACHIEVEMENT DIVISION PADA SISWA KELAS VII F SMP NEGERI 5 CILACAP
Authors: Afina Isra , Sujadi A. A
Published: October 2018

The main objective of the study is to describe the learning process by using cooperative learning type STAD (Student Teams Achievement Division) to increase studentâ€™s active and learning achievement of mathematics of the seventh grade students of SMP N 5 Cilacap. The hypothesis in this study is learning mathematic by using cooperative learning type STAD (Student Teams Achievement Division) to increase studentâ€™s active andÂ  learning achievement of mathematics. This research is Classroom Action Research (CAR), which is done collaboratively. The results of the study showed that after the implementation of learning by using cooperative learning type STAD (Student Teams Achievement Division) there is an increasing activity in learning mathematics. It seen from the percentage increased from 51,74% for the first cycle and the second cycle becomes 78,13%. The averages of mathematics achievement of the students increased from the beginning (pre-cycle) of 62,94 into a 68,75 in the first cycle and the second cycle increased to 75. The result for mastery learning students increased from pre-cycle by 28,13% to 62,5% in the first cycle and the second cycle increased to 68.75%. So it can be said that the cooperative learning type STAD (Student Teams Achievement Division) activity and students' mathematics achievement can be improved.
HUBUNGAN ANTARA MANAJEMEN WAKTU BELAJAR, MOTIVASI BELAJAR, DAN FASILITAS BELAJAR DENGAN PRESTASI BELAJAR MATEMATIKA SISWA SMP KELAS VIII SE-KECAMATAN DANUREJAN YOGYAKARTA
Authors: Juliasari Nurita , Kusmanto Benedictus
Published: October 2018

The purpose of the research was to find out correlate between learn time management, motivation to learn, and learning facilities with mathematics learning achievement on 8thÂ  grade students at the whole district of Danurejan Yogyakarta. The genre of this research is descriptive researchment. The population in this research were all students of 8th grade students at the whole district of Danurejan Yogyakarta with amount 593 students and the samples taken at proportional random sampling with amount 113 students. Data collection method used was a questionannaire and a test technique. Analysis using descriptive analysis of data, multiple regression, and partial correlation. In the major hypothesis test is obtained R = 0,747 and R2 = 0,558 with sig=0,000 < 0,05. Then in the first minor hypothesis test is obtained ry1-23 = 0,443 withÂ Â Â Â Â Â Â Â  sig=0,000 < 0,05; the second minor hypothesis test is obtained ry2-13 = 0,370 with sig=0,000 < 0,05; and the minor third hypothesis test is obtained ry3-12 = 0,344 with sig=0,000 < 0,05. So there is a positive and significant correlation between learning time management, motivation to learn, and learning facilities with mathematics learning achievement on 8th grade students at the whole district of Danurejan Yogyakarta as collective and partial. It is expected that students care about learning time management, motivation to learn, and learning facilities toÂ  mathematics learning achievement increasingly.
IMPLEMENTASI PEMBELAJARAN KOOPERATIF TIPE TGT (TEAMS GAMES TOURNAMENT) UNTUK MENINGKATKAN MINAT DAN PRESTASI BELAJAR MATEMATIKA SISWA KELAS VIII C SMP N 2 SANDEN, BANTUL
Authors: Aulyawati Ritya Anggraeni , Sujadi A. A
Published: October 2018

The aim of this observation is to describe the mathematic learning process which apply TGTcooperative type learning method to increase the mathematic proclivity and achievement ofstudent in class VIII C SMP N 2 Sanden, Bantul. The type of this observation is ClassAction Research (CAR). The Data accumulation technique in this observation usingobservation technique, questionnaire technique, test technique, documentation and range ofactivity record technique. After applied the cooperative type TGT learning method in classVIII C SMP N 2 Sanden, Bantul. The result of the observation indicated that the mathematicproclivity and study achievement of student have been advance. Its indicated by the averagepresentation progress of study proclivity student in pra step amounted 48,66% advance to60,31% at the cycle I and 68,88% at the cycle II. The student mathematic achievement areadvance, according to the average of pra step amounted 71,25 to 77,5 and at the end of cycleI and then 82,5 at the end of cycle II. Whereas the student presentation who get point â‰¥ 75advance too. Which at pra step amounted 35,71% to 64,29% in cycle I and then 85,71% incycle II. According to the observation teachers have to use TGT cooperative type of learningmethod in mathematic course especially in another material as an alternative to advance thestudent proclivity and study achievement in mathematic learning.
UPAYA MENINGKATKAN MOTIVASI BELAJAR DAN PRESTASI BELAJAR MATEMATIKA DENGAN MENGGUNAKAN PEMBELAJARAN KOOPERATIF TIPE SNOWBALL THROWING SISWA KELAS VIII A SMP TAMAN DEWASA IBU PAWIYATAN YOGYAKARTA
Authors: Fitriyani Evi , Kusmanto Benedictus
Published: October 2018

Snowball throwing method is one method to improve studentâ€™s motivation to learn and studentâ€™s achievement in mathematic. This research is Classroom Action Research (CAR). The subject of the research is the class VIIIA SMP Taman Dewasa Ibu Pawiyatan Yogyakarta. It is conducted in two cycles, each cycles consists of planning, acting, observing and reflecting. The data revealed from observation, questionnaire, test and documentation. The result of the research was there are increasing studentâ€™s motivation and studentâ€™s achievement. Suggestions researchers , teachers can use the learning model as an alternative to snowball throwing in an effort to improve learning motivation and student achievement in math.
PEMBELAJARAN GROUP TO GROUP EXCHANGE UNTUK MENINGKATKAN HASIL BELAJAR MATEMATIKA
Authors: Raharja Teguh
Published: October 2018

The purpose of this study was to describe the process of learning mathematics with active learning methods of type Groupto Group Exchange. Group to Group Exchangeis able to increase motivation and learning outcomes in learning mathematic on VIIA class of MTsMaâ€™arif Pekutan Kebumen. Type of this research is classroom action research. Subjects of this study were students of VIIA grade ofMTsMaâ€™arif Pekutan Kebumen as many as 18 student. The object of this study are the motivation and learning outcomes of mathematics with mathematic a llearning method Group to Group Exchange (GGE). The results showedthat the motivation and learning outcomes has increased. This is shown by an increase in the average of motivation percentage of students for each cycle. In the precycle average of student motivation in precentage is 61.40%, and increased to 70.19% in the first cycle. Then in the second cycle increased again became 80.28%. the average of student learning out comeson the precycle is 64.50 with average of completeness 38.88% from 18 students. On the first cycle increased to 73.61 with average of completeness 66.67% and than on the second cycles increased to78.08 with average of completeness 83.33%.
HUBUNGAN ANTARA KEBIASAAN BELAJAR, FASILITAS BELAJAR DAN PERHATIAN ORANG TUA DENGAN PRESTASI BELAJAR MATEMATIKA SISWA KELAS VII SMP NEGERI SE-KECAMATAN PAJANGAN
Authors: Tirani Ardika Agus
Published: October 2018

Descriptively, the purpose of this study is to know the tendency of the custom study, facility study and parentsâ€™ attention and the achievement Math of the students ofÂ  VII of Junior High School Negeri in Pajangan district on 2013/2014 academic year. Correlatively, the purpose is to determine the relationship between custom study, study facility and parentsâ€™ attention and the achievement Mathematics of the students of VII of Junior High School Negeri in Pajangan district on 2013/2014 academic year. This action research is descriptive correlation like ex post facto. The population of this study was all students of VII in Pajangan district on 2013/2014 academic year. The sampling technique used was simple random sampling. The result of research shows descriptively that it has tendency to the advanced custom study on the average as big as 67,06, 65,70 on the study facility, parentsâ€™ attention as big as 66,83, and the mathematics study achievement is amount to 15,97. While it shows correlatively that there is a positive context and significance among the custom study, study facility, and parentsâ€™ attention togetherness with the achievement mathematics. With the value correlation (R) between X1,X2 and X3 as big as 0,865 and efficient of decision 0,748.
PENGARUH KEMANDIRIAN DAN KEBIASAAN BELAJAR TERHADAP PRESTASI BELAJAR METEMATIKA SISWA KELAS X SMA NEGERI 1 RONGKOP
Authors: Rusmiyati Febti
Published: October 2018

This research intent to know influence: (1) Independence with math learned achievement; (2) Study habits with math learned achievement, and (3) are jointly between independence and study habits with math taught achievement student class X Senior High School 1 Rongkop. This observational type is ex post facto . This study population in observational is exhaustive student class X Senior High School 1 Rongkop year 2013 / 2014. Elected sample 3 classes which is 65 students. The sampling technique used was saturated sampling.Â  Technique of data collecting used the technique questionnaire to get independence data and study habits and UAS point documentation to get achievement data studies math. The data analysis technique is the descriptive statistical analysis and correlation analysis. The result showed that: (1) There is a positive influence of independence to math learned achievements student class X Senior High School 1 Rongkop year 2013/2014 by correlations 0,443; (2) There is a positif influence of study habits to math learned achievements student class X Senior High School 1 Rongkop year 2013/2014 by correlations 0,447; (3) There is a positif influence of independence and study habits to math learned achievements student class X Senoir High School 1 rongkop year 2013/2014 by correlations 0,874.
MENINGKATKAN KEAKTIFAN DAN HASIL BELAJAR MATEMATIKA DENGAN MODEL PEMBELAJARAN KOOPERATIF TIPE GROUP INVESTIGATION
Authors: Zayyin Alfa
Published: October 2018

The purpose of this research was to determine the learning process by using cooperative learning model type Group Investigation (GI) can enhance the activity and outcomes of learning mathematics class VII MTs Riyadhus Sholihin Purwareja Klampok. The results of research showed that for the involvement of the student and the learning outcomes of learning mathematics using coopertive learning type Group Investigation (GI) increased. In the pre-cycle, active of student learning increased by 43.16% for the first cycle to 62.24%, then on the second cycle increased to 71.84%. and the average value of student learning outcomes also increased. the pre-cycle average value of 55.73 with percentage of completeness by 31.57%. and then Increase in the first cycle to 61.71 with percentage of completeness to 52.63%. ThenÂ  increased again in the second cycle amounted to 73.42 with percentage of completeness to 76.31%.
MENINGKATKAN KEAKTIFAN DAN HASIL BELAJAR MATEMATIKA MENGGUNAKAN MODEL PEMBELAJARAN MAKE A MATCH SISWA KELAS VIII A SMP N 2 TEMON KABUPATEN KULON PROGO
Authors: Herlikano Melanza Agata , Sujadi A. A
Published: October 2018

The purpose of this study is to enhance the activeness and the result of study of mathematic of students of class VIII A by using learning model Make A Match in SMP N 2 Temon district of Kulon progo Year of 2014/2015. The subjects of this study were students of class VIII B SMP N 2 Temon totaling 29 students.Data Collecting tecniques of this study are done by observation sheets, documents, and tests. The result of study shows that after applying learning model Make A Match, the activeness and the result of study are increasing. They can be indicated by increasing percentage of average result of studentsâ€™ acteveness based on observation sheet for each cycle, i.e. studentsâ€™ activeness in cycle I is 57.10% and 75.98% for cycle II. The average rate of the result of study of studentsâ€™ mathematics increases from 35.90% to 64.77% in cycle I, becomes 71.26% in cycle II. As learning model of Make A Match increases studentsâ€™ activeness and also the result of study on mathematics, it is better for schools to apply such learning model.
EFEKTIVITAS METODE DRILL TERHADAP PRESTASI BELAJAR MATEMATIKA DITINJAU DARI KEMAMPUAN AWAL SISWA
Authors: Pujiastuti Susiana , Harini Esti
Published: October 2018

Abstract: This study held to improve determine the differences in student achievement in drill methods and conventional learning, to determine learning achievement which one is better among students who have prior knowledge of high, medium, and low, to determine whether there is an interaction between learning methods and prior knowledge on learning achievement. This study was a quasi-experimental research with the population and a sample of 40 students. The sampling technique with saturated sampling. The validity of the items with product moment and reliability with KR-20. Hypothesis testing technique with two way analysis of variance. The results of this study are: learning with drill method is more effective than the conventional learning (FA>Ftable); student achievement with high study prior knowledge better than students with moderate and low prior knowledge (FB>Ftable); there is no interaction between teaching methods and students' prior knowledge for learning achievement (FAB<Ftabel). Thus, from the results of this study are learning mathematics by using the drill method can be used to improve student achievement.
MODEL SNOWBALL THROWING UNTUK MENINGKATKAN MOTIVASI DAN HASIL BELAJAR MATEMATIKA KELAS VII-A SMP KARTIKA XII-1
Authors: Elferasari Agustina
Published: October 2018

Abstarct: The purpose of this research for improve the motivation and the study result of the student in the mathematic lessons using cooperative learning type Snowball throwing in theÂ  VII A grade of the SMP kartika XII-1 Magelang. The type of this research is a classroom action research. The subject of the research are the students grade VII A SMP Kartika XII-1 Magelang it consists of 20 students. The objective of the research is motivation and mathematic learning result by using a cooperative model in snowball throwing type. The result of the study shows that after this learning model, studentsâ€™ motivation and study result has an increase. Studentsâ€™ motivation has increase in pre cycle from 68% become 79,5% in cycle II. Beside that the subjection average of students study result has an increase in pre cycle shows 64,25Â  with Minimum Completenes Criteria â€˜KKMâ€™ is 35 % consists of 7 students. In cycle I has an increase become 69,67 with KKM is 60 % consist of 12 students where as in cycle II shows the increase become 77,94 with KKM is 80% consist of 16 students.
IMPLEMENTASI MODEL PEMBELAJARAN KOOPERATIF TIPE TEAMS GAMES TOURNAMENT (TGT) UNTUK MELATIH PEMAHAMAN KONSEP SISWA
Authors: Safitri Meilani
Published: October 2018

Penelitian ini bertujuan untuk mengetahui gambaran pemahaman konsep siswa dengan memgimplementasikan model pembelajaran kooperatif tipe Teams Games Tournament (TGT). Subjek penelitian ini adalah siswa kelas VII.6 SMP Negeri 54 Palembang dengan jumlah siswa sebanyak 31 orang. Pengumpulan data dilakukan dengan observasi dan tes. Hasil analisis data menunjukkan bahwa persentase siswa dengan pemahaman konsep baik adalah sebesar 77,42%.Â
Berpikir Outside The Box Mahasiswa dalam Menyelesaikan Masalah Barisan Bilangan
Authors: Hariyani Sri
Published: October 2018

Penyelesaian masalah matematika di kelas khususnya barisan bilangan menunjukkan situasi yang tidak kreatif. Anak tidak mencari penyelesaian masalah, melainkan menghapal prosedur penyelesaian. Situasi ini menjadikan anak tidak dapat menunjukkan kreativitas penyelesaian masalah barisan bilangan. Ini berarti anak tidak mampu berpikir outside the box. Penelitian ini mendeskripsikan berpikir outside the box mahasiswa dalam menyelesaikan masalah barisan bilangan. Prosedur pengumpulan data dalam penelitian ini menggunakan metode think alouds, wawancara, dan pengamatan. Adapun kegiatan analisis data kualitatif pada penelitian ini dilakukan secara bersamaan (simultan) dengan proses pengumpulan data, interpretasi, dan pelaporan hasil. Penyelesaian masalah oleh subyek penelitian diuraikan melalui sudut pandang transformasi dalam berpikir outside the box. Transformasi dalam berpikir outside the box diuraikan dengan menggunakan deskripsi 4 tahapan yaitu klarifikasi, inferensi, evaluasi, dan aplikasi. Penelitian ini penting bagi praktisi pendidikan untuk menjadikan berpikir outside the box sebagai input informasi tentang jenis karakteristik berpikir.
Pemecahan Masalah Matematis Berdasarkan Kemampuan Awal Matematis Melalui Pembelajaran Grup Investigasi Berbantuan Geogebra Matakuliah Geometri Analitik
Authors: Asnawati Sri , Sanusi Nelly Maâ€™rifat , Noto Muchamad Subali
Published: October 2018

Penelitian ini bertujuan untuk menguji dan menganalisis perbedaan kemampuan pemecahan masalah matematis. Tujuan jangka panjang penelitian ini adalah (1) tersusunnya rencana perkuliahan yang dikembangkan dengan mempertimbangkan keragaman respon mahasiswa sehingga diharapkan dapat mengantisipasi keragaman lintasan belajar yang dilalui oleh masing-masing mahasiswa; (2) mengembangkan rencana pembelajaran dan bahan ajar materi geometri analitik berbasis model pengembangan bahan ajar tertentu sehingga diharapkan dapat membantu mahasiswa dalam memahami konsep-konsep esensial sehingga kebutuhan belajar mahasiswa terpenuhi. Metode penelitian yang akan digunakan adalah metode eksperimen, berbentuk quasi-exsperimental design (the static group pretest-posttest design). Dari populasi seluruh mahasiswa tingkat 2 yang mengikuti perkuliahan geometri analitik dipilih dua kelompok mahasiswa secara purposive sebagai sampel. Uji statistik yang akan digunakan untuk menguji hipotesis adalah independent sample t-test. Hasil penelitian menunjukan bahwa pemecahan masalah matematis mahasiswa yang pembealajarannya menggunalakan GI berbantuan geogebra lebih baik daripada pembelajaran konvensional.Â
Pembelajaran Kombinasi Menggunakan Konteks Tim Sepak Takraw
Authors: Ryandi Rarri Bian , Somakim Somakim , Susanti Ely
Published: October 2018

This study aims to produce a learning trajectory using takraw teams context in helping students to understand the concept of combinations. This research used design research to give in developing local instructional theory in learning combinations. Learning trajectory designed in the early phases and tested on 36 tenth-grade students in SMA N 15 Palembang. This result is a learning trajectoryÂ  which consists of 3 activities using takraw teams context:1) student do role-play scene of selecting main teams and handshake between players, this supports students to understanding in combinations order doesnâ€™t matter. 2) students analyze the general pattern of combination with the knowledge of students about the factorial. 3) student solve problems related to combination helps students in thinking about how to solve a real-world problem related to combination. From the resulting activity can be concluded that learning to use takraw teams context can help students understand the concept of combinations.
Asma Fidanı Üretim Parselinde Solarizasyon Uygulaması Öncesi ve Sonrası Toprak Mikrofunguslarının Belirlenmesi
Authors: GÜNGÖR SAVAŞ Nurdan , AKGÜL Davut Soner , ALBAZ Esra , SAVAŞ Yüksel
Published: October 2018

Bu çalışma, asma fidanı
üretim parseli toprağında solarizasyon öncesi ve sonrası mikrofungusların
belirlenmesi amacıyla, Manisa Bağcılık Araştırma Enstitüsü Müdürlüğü fidanlık
parselinin 500 m2’lik alanında 2014 yılında yürütülmüştür. Solarizasyon
uygulaması öncesi toprağı seyreltme yöntemi ile gerçekleştirilen izolasyon
sonrasında; asma fidanlığı toprağının bir gramında 99x103 koloni
oluşturan birim (KOB) mikrofungus bulunduğu, bunların Ascomycota bölümüne ait
10 cins içerdiği belirlenmiştir. Çalışmada tespit edilen fungus cinsleri,
alfabetik sıraya göre; Acremonium, Alternaria, Aspergillus, Cylindrocarpon,
Epicoccum, Fusarium, Mortierella, Mucor, Myrothecium, Penicillium,
Rhizopus ve Trichoderma olduğu tespit edilmiştir. Tür zenginliği bakımından ele
alındığında; Fusarium, Aspergillus, Trichoderma, Penicillium, Acremonium
cinslerinin öne çıktığı belirlenmiştir. Araştırma, koloni sayıları bakımından
değerlendirildiğinde Fusarium
cinsinin ilk sırayı aldığı, bunu Aspergillus,
Epicoccum, Penicillium ve Acremonium
cinslerinin izlediği anlaşılmıştır. Buna göre, gerek tür zenginliği ve gerekse
koloni sayısı bakımından, Fusarium
cinsinin ilk sırayı aldığı tespit edilmiştir. Çalışmanın diğer aşamasında, temmuz-ağustos
aylarında, 0.125 mm kalınlığında şeffaf polietilen örtü kullanılarak 8 hafta
süreyle solarizasyon uygulaması yapılmıştır. Solarizasyon uygulaması sonrası
parselde toprağı seyreltme yöntemi ile izolasyon çalışmaları tekrarlanmıştır.
İzolasyon sonrası en yaygın cinslerin ise sırasıyla, Trichoderma, Penicillium,
Aspergillus ve Alternaria olduğu belirlenmiştir. Asma fidanlık topraklarında
solarizasyon uygulaması sonrası mikrofungal türlerin ve çeşitliliğinin azaldığı
belirlenmiştir. Çalışma bulgularının, toprak fungusları üzerine abiyotik
faktörlerin etkisinin değerlendirilmesine yönelik çalışmalara katkı
oluşturacağı kanısındayız.
Fındık Üretiminde Kimyasal İlaç Kullanımının Çevresel Duyarlılık Yönünden İncelenmesi: Giresun İli Örneği
Authors: KILIÇ Burhan , UZUNDUMLU A. Semih , TOZLU Göksel
Published: October 2018

Bu çalışmanın amacı Giresun İli Merkez, Bulancak, Espiye, Görele, Keşap ve Tirebolu
ilçelerinde fındık üreten üreticilerin tarımsal ilaç kullanımında çevresel
duyarlılıklarını ortaya koymaktır. Çalışmada kullanılan veriler basit tesadüfi
örnekleme yöntemiyle toplanmış olup, kullanılan anket 24 köyden 100 çiftçiye
uygulanmıştır. Bunun yanında yerli ve yabancı literatür taranmış, kamu kurum ve
kuruluşlarından elde edilen verilerden de faydalanılmıştır. 2012 üretim yılını
kapsayan çalışmada şu sonuçlar elde edilmiştir. Üreticiler yeterli düzeyde
olmasa da tarımsal kuruluşları ziyaret ettikleri ve bu üreticilerin %66’sının
tarımsal ilaç seçimini bayilere danışarak, %18’inin danışmanı olan ziraat
mühendislerine sorarak, %7’si teknik teşkilata sorarak, %5’i kendi deneyimine
göre, %3’ü ziraat mühendisine sorarak ve %1’i ise komşularına danışarak
kullandıkları saptanmıştır. Çiftçilerin büyük çoğunluğu (%83) bitkiler üzerinde
kalan kimyasal ilaç kalıntılarının insan sağlığı için zararlı olduğunu
belirtmiş, ancak yeterli bilgilerinin olmadığını da ifade etmişlerdir.
Çiftçilerin ilaç ambalajlarının imhasında kullandıkları yöntemler ve yüzdeleri:
%66’sı ilaç ambalajlarını ilaçlamadan sonra yakma, %24’ü poşetleyerek çöp
kutusuna atma, %8’i toprağa gömme, %2’si ise düzensizce çevreye atma şeklinde
belirlenmiştir. Bu yöntemlerden her birinin çevreye ve canlı yaşamına olumsuz
etkileri vardır. Bu zararlı etkilerin en aza indirilmesi ilaç ambalajlarının depozito ve
benzeri bir uygulama ile toplanıp kontrol altına alınması ile mümkün olabilir.
Karadeniz’de Avlanan Hamsi Balığı, Engraulis encrasicolus, Etinin Amino Asit İçeriğinin LCMS/MS Kullanılarak Tespiti
Authors: BİLGİN Özlem , ÇARLI Uğur , ERDOĞAN Selahattin , MAVIŞ Murat Emrah , GOKSU GURSU Gökçe , YILMAZ Muhittin
Published: October 2018

Bu çalışmada, Karadeniz’de Sinop kıyılarından avlanan hamsi balığı etinin esansiyel amino asit (EAA) ve esansiyel olmayan amino asit (NEAA) profili, LC-MS/MS cihazıyla ve bu cihaza uygun olarak modifiye edilmiş yöntem ile ilk kez analiz edilmiştir. Sonuçlar daha önce diğer balıklar üzerine yapılmış çalışmalarla kıyaslanarak, hamsi balığı etinin amino asit içeriği ve diğer balıklardan farkı tartışılmıştır. Hamsi etinde toplam 19 adet amino asit tespit edilmiş olup arginine, cystine, histidine, isoleucine, leucine, lysine, methionine, phenylalanine, serine, threonine, tyrosine ve valine esansiyel amino asitleri oluşturmuştur. Bu esansiyel amino asitler toplam amino asit (TAA) miktarının %57.6’sını oluşturmuştur. Hamsi etinde en yüksek oranda tespit edilen EAA miktarı sırasıyla lysin (2,74±0,180 mg/100 g), leucine (2.13±0.230 mg/100 g), arginine (1.54±0.025 mg/100 g) ve valine (1.20±0.080 mg/100 g) şeklinde olduğu tespit edilmiştir. Hamsi etinde en yüksek oranda tespit edilen NEAA miktarının ise sırasıyla, glutamic asit (3.68±0.135 mg/100 g), aspartik asit (2.84±0.270 mg/100 g), alanine (1.52±0.005 mg/100 g) ve glycine (1.22±0.095 mg/100 g) şeklinde olduğu tespit edilmiştir. Bu çalışmada elde edilen sonuçlar önceki çalışmalardan elde edilen sonuçlarla kıyaslandığı zaman, hamsi etinin EAA ve NEAA bakımından zengin olduğu, elde edilen farklı AA profili sonuçlarının ise balık türü, mevsim ve uygulanan AA belirleme yöntemine göre farklılıklar gösterebileceği görülmüştür.
Investigation of Bioactive Chemicals of Passion Flower (Passiflora incarnata L.)
Authors: DÜLGER Dilek , ERGÜN Fatma , DEMIR Nazan
Published: October 2018

In this study, a research was
conducted to determine the protease enzyme activity and the volatile organic
compounds of passion flower (P. incarnata
L.) to determine the usability of the plant in the pharmaceutical sector. In order
to determine the activity of the protease enzyme in passion flower,
measurements were taken according to the method of casein digestion in the
presence of 1% casein. In the light of the absorbance values, it is determined
that the plant has proteolytic activity. In addition, volatile organic
compounds of the plant were analyzed by headspace GC/MSD. 5 g fresh plant was
taken and put into 20 ml headspace vial. The plant was extracted and analyzed
with 6890 GC-5975C MSD using the HP-5 MS UI column. According to the results
obtained, it has been scientifically determined that the plant can be used in
the pharmaceutical industry.
Investigating Combination and Individual Impact of Phosphorus and Humic Acid on Yield of Wheat and Some Soil Properties
Authors: JAMAL Aftab , HUSSAIN İqrar , SARIR Muhammad Sarirullah , SHARIF Muhammad , FAWAD Muhammad
Published: October 2018

In order to evaluate the effect of different levels of Phosphorous (P) alone and in combination with Humic acid (HA) on the yield and P accumulation by wheat(TriticumaestivumL, CV Fakhr-e-Sarhad)., a field experiment was carried out at agriculture research station of Swabi, Pakistan during 2016-2017. A total of eight treatments replicated four times were arranged in Randomized Complete Block Design (RCBD) in the field. Two levels of HA including control (H0: control and H1: 500 g ha-1) and four levels of P (P2O5) including control as Single Super Phosphate (SSP)   (P0: control, P1: 60 kg ha-1, P2: 90 kg ha-1, and P3: 150 kg ha-1) were utilized. ; Size of each plot was kept to 5x4 m. Addition of different levels of SSP alone and in combination with HA significantly (P<0.05) improved straw, grain and total wheat yield over control. HA in combination with 60 and 90 kg P2O5 ha-1 improved the grain yield by 22.4 and 6.5 % respectively as compared to the same amount of fertilizer applied alone. Total yield (Dry mass + Grains) of 20877 kg ha-1 was produced by the treatment P2H1 (90 kg P2O5 ha-1 + 500 g ha-1 HA) followed by the treatment P2H0, which were 78.69 and 75.03 % increases over the control. Significantly highest 1000- grain weight of 47.8 g was recorded in the treatment P2H1 while all other treatments showed non-significant increase in 1000- grain weight. Unlike soil pH values, improvement in the Soil Organic Matter content (SOM) was observed with the application of both HA and chemical fertilizers either applied alone or in combination. SSP applied either alone or in combination with HA increased significantly (P<0.05) the post-harvest soil P concentration as well as P accumulation by wheat plants over control. Results suggest that application 90 kg P2O5 ha-1   reinforced with HA (P2H1) may be considered as an optimum dosage for achieving optimum yield of wheat crop.
Bursa Bölgesi Sulama Şebekelerinin İstatistiksel Yöntemlerle Değerlendirilmesi
Authors: BÜYÜKCANGAZ Hakan , DEĞİRMENCİ Hasan , KARTAL Sinan
Published: October 2018

Sulama şebekelerinin işletme aşamasında
izlenmesi ve değerlendirilmesi şebekelerin verimliliğinde en önemli unsurdur.
Sulama şebekelerinin performanslarının belirlenmesinde dünyada en çok
kullanılan göstergeler üretim değeri ile ilişkili göstergelerdir. Bu çalışmada;
Bursa bölgesinde bulunan 9 sulama şebekesi materyal olarak alınmıştır.
Değerlendirmede; proje alanı brüt üretim değeri (PABÜD), sulanan alan brüt
üretim değeri (SABÜD), şebekeye alınan su miktarı brüt üretim değeri (ŞASMBÜD),
sulama suyu ihtiyacı brüt üretim değeri (SSİBÜD) ve sulama oranı (SO)
karşılaştırma göstergeleri kullanılmıştır. Yapılan veri zarflama analizinde;
şebekeye alınan su miktarı ve çalışan personel sayısı girdi, üretim değeri ve
sulanan alan ise çıktı olarak kullanılmıştır. Çalışma sonucunda 4 yıllık
ortalama veriler ve varyasyon katsayısı incelendiğinde en iyi durumda olan
sulama şebekeleri PABÜD [1198.61 (15.18)] ve SABÜD [2147.75 (9.06)] performans
göstergesi değerine göre Boyalıca Pompaj Sulaması, ŞASMBÜD [0.40 (10.62)]
performans göstergesine göre İznik Pompaj Sulaması, SSİBÜD [0.48 (24.17)] ve SO
[76.51 (7.56)] performans göstergesine göre ise Bursa Yeraltısuyu Sulaması (YAS) sulamasıdır. Veri zarflama analiz sonuçları
incelendiğinde 9 sulama şebekesi içinde Bursa YAS pompaj sulamasının en etkin
olduğu ve başarılı bir yönetim sergilediği görülmektedir.
Beyaz Yeni Zelanda Tavşanlarında Büyüme Eğrilerinin Karşılaştırılması
Authors: ŞENGÜL Turgay , ÇELİK Şenol , TAYSI M. Reşit , SÖĞÜT Bünyamin
Published: October 2018

Bu çalışmada, Beyaz Yeni Zelanda ırkı tavşanlara
(erkek ve dişi) ait 0-20 haftalık dönemdeki canlı ağırlıkların büyüme eğrileri
karşılaştırılmıştır. Tavşanların canlı ağırlıklarını tanımlamak için Lojistik,
Gompertz ve Von Bertalanffy modelleri kullanılmıştır. Modellerin
karşılaştırılmasında, determinasyon katsayısı (R2), Hata Kareler
Ortalaması (HKO), Hata Kareler Ortalamasının karekökü (HKO karekökü), Akaike
Bilgi Kriteri (AIC) ve Bayesci Bilgi Kriteri (BIC) değerleri kullanılmıştır. Çalışma sonucunda Von Bertalanffy modelinin
tavşanların canlı ağırlığını belirleyen en iyi model olduğu, R2,
HKO ve büyüme oranlarının (k) sırasıyla; erkek
tavşanlar için 0.998, 2214.925, 0.107; dişi tavşanlar için 0.997,
2277.812,  0.104 olduğu saptanmıştır.
Tüketicilerin Kooperatif Markalı Ürünleri Tercihinin İncelenmesi: Çanakkale İli Örneği
Authors: EVEREST Bengü , NİYAZ Özge Can , TAN Sibel , YERCAN Murat
Published: October 2018

Kooperatiflerin toplum kalkınmasına, istihdamın artmasına, küçük üreticilerin gelirlerinin artmasına yönelik katkıları olmakla birlikte önemli faaliyetlerinden biri de ortaklardan alınan ürünleri pazarlamalarıdır. Markalaşma ve fiyat oluşturmada kooperatiflerin rol alması pazarlama kanalını kısaltır. Kısalan pazarlama kanalıyla üreticilerin gelirleri artar ve tüketiciler daha az ücret ödeyerek ürün satın alırlar. Böylece yerel ekonomilerin kalkınmasına katkı sağlanır. Dolayısıyla kooperatiflerin markalaşması ve tüketicilerin kooperatif markalarını tercih etmeleri önem arz etmektedir. Bu araştırmada Çanakkale ilindeki tüketicilerin kooperatif markalı ürünlere karşı tutum ve yaklaşımları incelenmiştir. Elde edilen bulgular Çanakkale kent merkezinden 130 tüketici ile yapılan anketlerden elde edilmiştir. Araştırmada bulanık eşli karşılaştırma yöntemi ile tüketicilerin kooperatif markalı ürün tercih amaçları belirlenmiştir. Tüketicilerin kooperatif markalı ürünlerin pazarlanmasına ilişkin görüşleri likert ölçekli sorularla saptanmıştır. Ki-kare analizi kullanılarak kooperatif markalı ürün kullanma durumu ile demografik değişkenler arasındaki ilişki test edilmiştir. Araştırmada tüketicilerin %60’ının kooperatif markalı ürünleri düzenli olarak tükettikleri tespit edilmiştir. Düzenli olarak kooperatif markası tüketmeyenlerin %57.7’si ise ileride kooperatif markalı ürünleri tüketmek istemektedir. Tüketiciler kooperatif markalı ürünlerin pazarlanmasında yeteri kadar özendirme/promosyon çalışması yapılmadığını düşünmektedirler. Tüketiciler kooperatif markalı ürünlere ilişkin daha fazla reklam görmeyi beklemekte ve daha fazla ürün çeşidinin kooperatifler vasıtasıyla pazarlanmasını istemektedirler. Tüketicilerin kooperatif markalı ürünleri tercih etme amaçlarından ilki daha kaliteli ürün tüketme isteğidir.
Broiler Üretiminde Üretici Memnuniyetini Etkileyen Faktörler
Authors: İKİKAT TÜMER Emine , AĞIR Hasan Burak , GÜRLER Deniz
Published: October 2018

Üretim
süresinin kısa, az işgücüne ihtiyaç duyması, iyi bir hayvansal protein kaynağı
ve kırmızı etten daha ucuz olması gibi nedenlerden dolayı broiler üretimi
kanatlı üretimi içerisinde önemli bir yere sahiptir. Bu araştırmada
üreticilerin broiler üretim memnuniyetini etkileyen faktörlerin belirlenmesi
amaçlanmıştır. Araştırmanın ana materyalini Mersin ili Tarsus ilçesinde toplam
87 üretici ile yapılan anketlerden elde edilen veriler oluşturmaktadır.
Araştırmada üretici memnuniyetini etkileyen faktörlerin analizinde probit
regresyon kullanılmıştır. Elde edilen sonuçlara göre üreticilerin yaşı ortalama
45.39, deneyimi 20.36 ve eğitim düzeyi 6.16 yıl olarak hesaplanmıştır. Probit
regresyon sonuçlarına göre; üretici yaşı, tecrübe ve üretici gelirinin
memnuniyet üzerinde pozitif etkisinin olduğu saptanmıştır. Aile birey sayısı,
broiler cinsi, tedarikçi firmaya uzaklık ve ölüm oranının üretici memnuniyeti
üzerinde negatif etkisi olduğu sonucuna ulaşılmıştır.
Hatay İlinde Tıbbi ve Aromatik Bitki Pazarlayan İşletmelerin Değerlendirilmesi ve Aktarların Sosyo-Ekonomik Analizi
Authors: ASİL Hasan , TAŞGIN Selim
Published: October 2018

Günümüzde
modern tıp ne kadar gelişirse gelişsin bitkisel tedavi yöntemleri yaygın olarak
kullanılmaya devam etmektedir. Bunun için de genellikle yerleşim bölgelerinde
bulunan “Baharatçı Dükkanı” ya da “Aktar dükkanı” olarak adlandırılan yerlerden
hastalıkların tedavisi için tıbbi ve aromatik bitkiler alınmaktadır. Bitkisel
tedavinin yaygın olarak kullanılmasında bu işin ticaretini yapan aktarlar
önemli bir role sahiptir. Bu çalışmada
Hatay ili Antakya merkezindeki aktarlarda satılan tıbbi ve aromatik bitkilerin
değerlendirilmesi ve aktarların sosyo-ekononil analizlerinin ortaya konulması
amaçlanmıştır. Ayrıca, aktarların sosyo- ekonomik analizi, tıbbi ve aromatik
bitkilerin kullanım yöntemleri değerlendirilmesi yapılmıştır.  Bununla birlikte ürünlerin muhafaza şekilleri,
satış miktarları değerlendirilmiştir.
Aktarların %89’unun erkek, %47’sinin 40 yaş üzeri ve %39’nun lise mezunu
olduğu, %84’ü mesleği ustasından veya babasından öğrendiğini ve %88’inin iş
deneyimi 6 yıl ve daha fazla olduğu sonucuna ulaşılmıştır. Aktarlardan elde edilen bulgulara göre oğul otu (%89), mercan köşk (%87)
zerdaçal (%82) daha çok tedavi amaçlı kullanılırken, yaban mersini (%69),
böğürtlen (%64), reyhan (%47) gıda olarak kullanılmaktadır. Baharat olarak daha
çok defne bitkisi (%40), çörek otu (%38) kullanılırken, kozmetik sektöründe
daha çok avakado yaprağı (%25), karaçalı (%17) ve rezene (%10)
kullanılmaktadır.
The Classification of Soils Formed Over Göynük River (Bingöl) Terraces and Determination of Their Physico-Chemical Propertiesa
Authors: DEMİR Yasin , CANBOLAT Mustafa Yıldırım
Published: October 2018

Soils are constantly changing due to topographical factors, agricultural practices and climate characteristics. Along with the formation processes, soils generally have different characteristics due to the impacts of the factors they are exposed to. This study determined the physical, chemical and hydraulic characteristics of three terraces formed by the Bingöl-Göynük River and the terrace soils were classified according to Soil Taxonomy. Soil profiles were excavated on each terrace, and horizon-based sampling was performed. The 1st terrace over the river bed was composed of alluvial deposits. The 2nd and 3rd terrace soils had structural development and advanced horizon development. The soil moisture regime was xeric, the temperature regime was mesic, and the climate was related to soil formation. The most distinctive soil formation process was identified as carbonate accumulation in the 2nd terrace. According to Soil Taxonomy, all three soil profiles were classified within Entisol and Vertisol orders.
Sivas Ekolojik Koşullarında Yetiştirilen Yonca Çeşitlerinin Bazı Agronomik ve Kalite Özelliklerinin İncelenmesi
Authors: KARAKÖY Tolga , SARAÇ Handan
Published: October 2018

Yonca (Medicago sativa L.), yüksek adaptasyon kabiliyeti ve üstün kalite özelliklerinden dolayı yaygın olarak yetiştirilmektedir. Ülkemizde de yem bitkileri içerisinde büyük oranda yonca yetiştiriciliği yapılmaktadır. İyi bir yem bitkisi üretim sistemi içerisinde, üstün özelliklere sahip yonca çeşitlerinin seçilmesi üreticiler açısından son derece önemlidir. Bu araştırma, farklı orijinli altı adet yonca çeşidinin (Costanze, Occitane, Bilensoy, Sunter, Kayseri ve Gea) Sivas ekolojik koşullarında bazı agronomik özellikler ve kalite özelliklerinin belirlenmesi amacıyla 2015-2017 yılları arasında, Sivas/Merkez ve Sivas/Çongar olmak üzere iki farklı lokasyonda yürütülmüştür. Araştırmada, yonca çeşitlerinin ana sap uzunluğu, ana sap kalınlığı, yaş ot, kuru madde verimleri, ham kül, organik madde, ham protein, ham lif, ADF ve NDF özellikleri incelenmiştir. Araştırma sonucunda, yonca çeşitlerinin, en yüksek kuru madde ve ham protein verimine ikinci yılda ulaştığı belirlenmiştir. İki yıllık ortalama verilere göre, Costanze, Occitane ve Gea yonca çeşitleri, Kayseri, Sunter ve Bilensoy çeşitlerinden önemli derecede yüksek kuru madde ve ham protein verimine sahip olurken, Bilensoy ve Sunter çeşitlerinin ise NDF oranlarının daha yüksek değerlere sahip olduğu belirlenmiştir. Araştırma bulgularına göre, Sivas ekolojik koşullarında Costanze, Occitane, Bilensoy ve Gea çeşitlerinin yetiştirilmesi ile daha fazla ve kaliteli ot verimi elde edileceği sonucuna varılmıştır.
Influence of Prey Egg Age on The Consumption Capacity of Amblyseius swirskii and Neoseiulus californicus (Acari: Mesostigmata: Phytoseiidae)
Authors: AKYAZI Rana , ALTUNÇ Yunus Emre , SOYSAL Mete
Published: October 2018

The influence of egg age of Tetranychus urticae Koch (Prostigmata:
Tetranychidae) on consumption capacity of Amblyseius swirskii Athias-Henriot and Neoseiulus californicus (McGregor) (Mesostigmata:
Phytoseiidae) were evaluated under controlled conditions. To determine
the effect of
egg age on the predator's consumption rate, three
different groups of T. urticae egg,
0-24, 24-48 and 48-72 hour-old, were offered as prey. All experiments were performed using unstarved and starved (24
hours) mated female adults of N.
californicus and A. swirskii (2-3
day old). Each predatory mite was individually placed on each leaf disc
containing 30 T. urticae eggs. After 24 hours of exposure,
the predatory mites were removed and the number of consumed eggs was recorded
for each treatment. All experiments were carried out on bean leaf discs (2 cm in diameter) at
25°C ± 1, 65 ± 5% R.H. and a photoperiod of 16 Light:8 Dark. The result showed
that the consumption capacities of N. californicus and A. swirskii were influenced by eggs age of T. urticae. The amounts of older T. urticae eggs
consumed by starved N. californicus and
A. swirskii were higher than younger
eggs'. The prey consumption was also significantly higher than when predators
were deprived for prey for 24 h on a leaf. However, the effect of host egg age
on the preference, fecundity and longevity of the predatory mites should also
be needed further studies.
Characteristics of Users Affecting Edible Plant Demand in Urban Parks
Authors: YALÇINALP Emrah , DEMİRCİ Özgür
Published: October 2018

The term edible landscape became very popular especially because of some
problems related with some cultural, sociological, ecological and economical
changes in urban areas. While urban parks have important roles on life quality
of those who live in urban areas, they also have many different functions.
Urban parks, which are designed to have edible landscapes inside, make it
possible for those who live in urban areas to feel comfortable making them feel
close to the nature and create an emotional relation with the users. Apart from
this, they make a great contribution to awareness of ecology and environmental
conservation. Furthermore, edible landscapes can be added to existing urban
parks by some rehabilitation studies following some design principles. Main
purpose of this study is to evaluate three different urban parks in Trabzon
regarding their edible plant potentials by questioning the users’ approaches.
From this point of view, this understanding is intended to be widely adopted by
the user and to provide a great opportunity for transition to more sustainable
food systems and urban land uses.
Biofidelic soft composites–experimental and computational modeling
Authors: Chanda Arnab
Published: October 2018

Biofidelic soft composites or tissues form the building blocks of the human body. Understanding the complex mechanics of these soft composites is the key to understanding the genesis and progression of disease. Biomechanically, soft composites exhibit anisotropic mechanical behavior and comprise of multiple fiber layers within a soft matrix. To date, there is a lack of understanding of the anisotropic mechanical behavior of soft composites, primarily due to unavailability of a robust characterization framework. In this dissertation, novel multiscale computational and experimental investigation models are developed to simulate and characterize anisotropic soft composite mechanical behavior. Soft composite surrogates were first developed to simulate various tissues in the human body namely the skin, brain, artery and vaginal tissues. Novel anisotropic soft composite models were also fabricated taking into consideration the tissue anisotropy and multifunctional properties. Hyperelastic anisotropic constitutive relationships were formulated to precisely characterize the mechanical behavior of soft composite considering varying fiber and matrix contributions, fiber-matrix interactions, fiber orientations and multiple fiber layers. Coupled with high fidelity experimental and computational models, microscopy, and Digital Image Correlation (DIC) studies, the damage and repair of soft composite surrogates are also discussed in this dissertation, with relevance to soft tissue wounds and suture. Computational modeling to understand the interaction between multiple soft composite systems and its effect on soft composite damage are also highlighted in this work. Some specific soft composite interaction systems modeled were the female pelvic system under abdominal loads, whole body impact due to blast, and ulceration in diabetic foot. This dissertation lays the foundation for micro and macro scale anisotropic soft composite modeling and characterization using high fidelity experimental and numerical techniques which will be indispensable for studying tissue mechanics and other soft composite applications in engineering and medicine.
GO GREEN
Authors: Andini Ayu Febri , Sodik Muhammad Ali
Published: October 2018

Go Green adalah tindakan penyelamatan bumi yang saat ini sudah mengalami kerusakan dan pemanasan global akibat dari ulah diri kita sendiri. Go Green dapat disebut pula dengan “Penghijauan Kembali”.
Customized Human Skin Simulants
Authors: Chanda Arnab
Published: October 2018

A simulant which precisely mimics the linear and non-linear mechanical properties of “the human skin” would be indispensable for assessment of load responses (and discomfort) produced by wearable technologies in the aerospace industry, be it an electronic sensor or a full body suit. In the current work, for the first time, a methodology has been developed to fabricate customized human skin simulants for any person and part of the body. The material comprises of four parts of silicone, which when mixed in different ratios, produces skin simulants with different stiffness properties. Extensive mechanical tests have been performed on different variants of the human skin simulants, and their stress versus strain responses have been matched with actual human skin test data from the literature. Also, the fracture properties of the simulants have been found to be in close range of the actual human skin. Additionally, non-linear hyperelastic constitutive models were used to fully characterize the mechanical behavior of the skin simulant variants. Mechanical tests on freshly excised porcine skin were conducted to validate our test results. To date, such accurate skin simulants has not been developed anywhere to the best of our knowledge. The material is cheap ($15/lb), has no biosafety or handling issues (unlike cadavers, cowhides or porcine skin), and castable to any shape or size. Besides testing, the skin simulants could also be used to develop liners for the wearable technologies, which are just like the skin of the person wearing it, thus reducing discomfort due to material mismatch and friction. Additionally, the skin simulants find applications in the area of manufacturing of prosthetics (liners) and orthotics, military grade armors and personal protection equipment (PPE), and testing of non-lethal and less-lethal ballistics.