scholarly journals Is Coffee (Coffea arabica L.) Quality Related to a Combined Farmer–Farm Profile?

2020 ◽  
Vol 12 (22) ◽  
pp. 9518
Author(s):  
Helga Bermeo-Andrade ◽  
Andrés F. Bahamón-Monje ◽  
Renso Aragón-Calderón ◽  
Yarmel Beltrán-Vargas ◽  
Nelson Gutiérrez-Guzmán
Keyword(s):  
Relative Weight ◽  
Agricultural Practices ◽  
Sensory Profile ◽  
Classification Model ◽  
Significance Level ◽  
Environmental Commitment ◽  
High Category ◽  
Specialty Coffee ◽  
Bonferroni Test ◽  
Commitment Level

This study proposed a classification model for 125 agricultural productive units (APUs) in Tolima, Colombia, to establish whether they are related to the quality of coffee produced. The model considered two aspects related to farmer profile and farm profile. The following proposed categories resulted from the coordinate obtained in relation to the two aspects: Low-Low, High-Low, Low-High, and High-High. The variables for each aspect were prioritized using the analysis hierarchical process (AHP). The coffee’s quality, sensory profile by attribute, and specific descriptors for each category were determined employing the Specialty Coffee Association (SCA) protocol. The sensory attributes were analyzed by way of one-way analysis of variance (ANOVA), and the Bonferroni test was used to compare by category, both with a significance level of α = 0.05. The model grouped the APUs by category and cup quality, with the High-High category achieving the best scores in the sensory analysis. The variables with the greatest relative weight within the AHP model constituted farmer stance regarding the use of good agricultural practices (44.5%) and farmer attitude toward excellence (40.6%) in the farmer’s profile. As part of the farm’s profile, environmental commitment level (38.0%) and international certifications (29.1%) were the greatest relative weights. Coffee in the High-High category was characterized by its notes of cinnamon, cocoa, chocolate, and dried vegetables.

scholarly journals Artificial Caries Lesion Characteristics after Secondary Demineralization with Theobromine-Containing Protocol

Molecules ◽  
2021 ◽  
Vol 26 (2) ◽  
pp. 300
Author(s):  
Hani M. Nassar ◽  
Frank Lippert
Keyword(s):  
Mineral Content ◽  
Significance Level ◽  
Lesion Depth ◽  
Caries Lesion ◽  
Mineral Profile ◽  
Bonferroni Test ◽  
Bovine Enamel ◽  
Caries Lesions ◽  
Nail Varnish

Developing artificial caries lesions with varying characteristics is needed to adequately study caries process in vitro. The objective of this study was to investigate artificial caries lesion characteristics after secondary demineralization protocol containing theobromine and fluoride. Sixty bovine enamel slabs (4 × 3 mm) were demineralized using a Carbopol-containing protocol for 6 days. A baseline area (2 × 3 mm) was protected with acid-resistant nail varnish, after which specimens were exposed for 24 h to a secondary demineralization protocol containing acetic acid plus one of four fluoride/theobromine combinations (n = 15): theobromine (50 or 200 ppm) and fluoride (0 or 1 ppm). Specimens were sectioned and analyzed using transverse microradiography for changes in mineral content, lesion depth, and surface layer mineralization. Data was analyzed using paired t-test and analysis of variance followed by Bonferroni test at 0.05 significance level. After secondary demineralization, fluoride-containing groups had significantly deeper lesions (p = 0.002 and 0.014) compared to the group with 0 ppm fluoride and 50 ppm theobromine. Mineral content and lesion depth were significantly different compared to baseline for all groups. Theobromine did not show an added effect on mineral uptake. Theobromine-containing groups exhibited particularly deep lesions with a more uniform mineral profile in the presence of fluoride.

scholarly journals Monomer Release from Resin Based Dental Materials Cured With LED and Halogen Lights

2010 ◽  
Vol 04 (01) ◽  
pp. 034-040 ◽  
Author(s):  
Asli Topaloglu Ak ◽  
A. Riza Alpoz ◽  
Oguz Bayraktar ◽  
Fahinur Ertugrul
Keyword(s):  
High Performance ◽  
Light Emitting Diode ◽  
Dental Materials ◽  
Composite Resins ◽  
Time Intervals ◽  
Significance Level ◽  
Light Emitting ◽  
Quartz Tungsten Halogen ◽  
Bonferroni Test ◽  
One Way Anova

ABSTRACTObjectives: To measure the release of TEGDMA and BisGMA from two commercially available composite resins; Filtek Z 250 (3M ESPE, Germany), Leaddent (Leaddent, Germany) and two fissure sealants; Helioseal F (3M ESPE, Germany) Enamel Loc (Premiere Rev, USA) over 1, 3 and 7 days after polymerization with standard quartz-tungsten halogen Coltolux II (QHL) (Coltene Switzerland) and a standard blue light emitting diode Elipar Freelight 2 (3M ESPE, Germany).Methods: 9 samples of each material were placed in disc shaped specimens in 1 mm of thickness and 10 mm in diameter (n=36). Each material was polymerized using LED for 20 s (n=12), 40 s (n=12) and halogen for 40 s (n=12), respectively. High Performance Liquid Chromatography (HPLC) was used to measure the amount of monomers released over 1, 3 and 7 days. Data was analyzed using one way ANOVA and Bonferroni test for multiple comparisons with a significance level of .05.Results: LED 20 sec group showed the highest release of monomers at 1, 3 and 7 days in sealant groups. Halogen 40 sec group resulted highest release of monomers for Leaddent at all time intervals (P<.05)Conclusions: Efficiency of the curing unit and applying the recommended curing time of the light activated resin based dental materials is very important to protect the patient from potential hazards of residual monomers. (Eur J Dent 2010;4:34-40)

scholarly journals Pengelolaan praktik kerja industri pada program keahlian teknik pemesinan SMK se-Kabupaten Kulon Progo

2014 ◽  
Vol 4 (1) ◽  
Author(s):  
Suwarman Suwarman ◽  
Pardjono Pardjono
Keyword(s):  
Technical Skill ◽  
Sample Size Determination ◽  
Survey Method ◽  
Sample Number ◽  
Significance Level ◽  
High Category ◽  
Industrial Work ◽  
Learning Evaluation ◽  
Research Show

Penelitian ini bertujuan untuk mengungkapkan (1) perencanaan; (2) pelaksanaan; (3) evaluasi pembelajaran; (4) evaluasi program; dan (5) manfaat dari praktik kerja industri. Jenis penelitian adalah survey. Sampel penelitian ditentukan berdasarkan tabel Isaac dan Michael dengan taraf signifikansi 5%. Analisis data yang digunakan adalah analisis data diskriptif kuantitatif. Hasil penelitian menunjukkan bahwa, aspek perencanaan masuk dalam kategori sangat tinggi dengan skor 89,74 Aspek pelaksanaan menurut persepsi siswa, guru pembimbing dan pembimbing industri, masuk dalam kategori tinggi dengan skor masing-masing 320, 41,43 dan 48,7. Menurut persepsi siswa 19% guru pembimbing kurang dalam melakukan monitoring. Sebagian industri (47%) tidak pernah memberikan masukan pada sekolah. Evaluasi pembelajaran dilakukan oleh semua industri. Pada aspek manfaat, siswa merasakan manfaat yang sangat besar dengan skor 340,16, sekolah merasakan manfaat yang besar dengan skor 8,88, dan industri merasakan manfaat yang besar dengan skor 57,5. THE INDUSTRIAL WORK PRACTICUM MANAGEMENT OF THE MACHINERY TECHNICAL SKILL PROGRAM OF SMK KULON PROGO REGENCYAbstractThis study aims to determine (1) the planning; (2) the implementation; (3) learning evaluation; (4) evaluation program; and (5) the benefits of the industrial work practicum.This study used survey method. The determination of the sample number used the sample size determination according to Isaac and Michael with the significance level of 5%. The data analysis used the descriptive quantitative analysis. The results of the research show that the planning aspects is in the high category with scor is 89,74.. The aspects of the implementation as perceived by students, teachers/ mentors, and industry mentors are in the high category with mean scors each 320, 41,43 and 48,7. According to the students perception there is less guidance from the counselor (19%) in monitoring activities of the industrial work practicum. Some of the industries (47%) never provide input to schools to improve the industrial work practicum. The learning evaluation of the industrial work practicum is performed by all industries. In the benefit aspects of the industrial work practicum, the students get many benefits with scor is 340,16, so do the schools and the industry with scors each 8,88 and 57,5.

scholarly journals The Effect of Roast Development Time Modulations on the Sensory Profile and Chemical Composition of the Coffee Brew as Measured by NMR and DHS-GC–MS

Beverages ◽  
2020 ◽  
Vol 6 (4) ◽  
pp. 70
Author(s):  
Jesper Alstrup ◽  
Mikael Agerlin Petersen ◽  
Flemming Hofmann Larsen ◽  
Morten Münchow
Keyword(s):  
Development Time ◽  
Descriptive Analysis ◽  
Sensory Profile ◽  
Gas Chromatography Mass Spectrometry ◽  
Significant Shift ◽  
Sensory Experiences ◽  
Sensory Effects ◽  
Roasting Process ◽  
Short Development Time ◽  
Specialty Coffee

The specialty coffee industry is growing and, as a result, there is an accelerated interest in modulating roast profiles to present customers with new and diverse sensory experiences. The present study investigates the chemical and sensory effects of subtle variations in the ‘development time’ phase of the coffee roasting process. Four roast profiles were studied through sensory descriptive analysis (DA), gas chromatography–mass spectrometry (GC–MS), and nuclear magnetic resonance (NMR). Multivariate analysis showed clear separation of DA, GC–MS, and NMR data. A prolonged development time facilitated a statistically significant shift in the chemical and sensory profile of the coffee. The findings suggest that a short development time increases the fruity, sweet and acidic characteristics of the coffee, whereas a longer development time shifts the balance towards a more roasty, nutty, and bitter profile. The results provide evidence that supports the effect of subtle roast profile modulations. This lays a strong foundation for the inclusion of development time as a critical control parameter in the certification system of the Specialty Coffee Association, quality control, and product development strategies.

scholarly journals HUBUNGAN SELF-EFFICACY DAN PROKRASTINASI AKADEMIK MAHASISWA DALAM MENYELESAIKAN TUGAS PERKULIAHAN

2017 ◽  
Vol 3 (1) ◽  
pp. 74 ◽  
Author(s):  
Damri Damri ◽  
Engkizar Engkizar ◽  
Fuady Anwar
Keyword(s):  
Negative Correlation ◽  
Self Efficacy ◽  
Quantitative Method ◽  
Research Data ◽  
The Self ◽  
Academic Procrastination ◽  
Pearson Product Moment Correlation ◽  
Significance Level ◽  
High Category

The research is aimed at knowing the self-efficacy catogories and students academic procrastination and finding out the correlation of the two variables toward students’ their academic assignment accomplishment. Quantitative method is used in the research. Data was obtained through 231 respondents using self-efficacy and academic procrastination instruments. The data then is analyzed by SPSS for windows release 20.0. The findings show that students’ self-efficacy belongs to high category (71,90%) while procrastination is in moderate category (52,30%). Analysis of Pearson Product Moment Correlation shows that there is negative correlation between self-efficacy and academic procrastination (rcount)=-0.590 out of 0,000 significance level. It is implied that the more self-efficacy possessed by a students, the lower is the academic procrastination. Otherwise, the lower self-efficacy possessed by a students, th higher is the academic procrastination.

PENGARUH POLA KEPEMIMPINAN KEPALA SEKOLAH TERHADAP KINERJA GURU DI SD NEGERI 003 BENAI KECIL

2019 ◽  
Vol 3 (5) ◽  
Author(s):  
Septina Katrin
Keyword(s):  
Elementary School Teachers ◽  
School Leadership ◽  
Teacher Performance ◽  
Significance Level ◽  
High Category ◽  
Ex Post ◽  
Leadership Evaluation ◽  
Regression Test ◽  
Ex Post Facto ◽  
Leadership Pattern

The problem discussed in this study is the pattern of school leadership leadership on teacher performance in SD Negeri 6 Mandau. The purpose of this study was to determine whether there is an influence of the principal's leadership pattern on the performance of teachers in SD 6 Mandau. The design of this study uses a quantitative approach. This study is ex-post facto because in this study only presents data on events that have taken place and have been available to respondents without providing treatment or manipulation of the variables studied. The results showed that the headmaster's leadership evaluation by the teacher in this study was in the high category of 57.1% (8 teachers) and in the medium category was 42.9% (6 teachers). Assessment of teacher performance, the results of this assessment are in the high category of 64.3% (9 teachers) and in the moderate category of 35.7% (5 teachers). while testing the hypothesis in this study is the principal's leadership significantly influence the performance of Mandau 6 Elementary School teachers, based on the results of Ha's research received and Ho rejected. This is indicated by the significance value in the regression test that is smaller than the significance level, which is <0.05 and the Fcount value greater than Ftable is 64.333> 4.20. Based on the results of this study, researchers can conclude that the principal's leadership pattern influences the performance of teachers in SD 6 Mandau.

scholarly journals Effectiveness of platelet-rich fibrin in the management of pain and delayed wound healing associated with established alveolar osteitis (dry socket)

2017 ◽  
Vol 11 (04) ◽  
pp. 508-513 ◽  
Author(s):  
Ashish Sharma ◽  
Nimish Aggarwal ◽  
Sanjay Rastogi ◽  
Rupshikha Choudhury ◽  
Siddhi Tripathi
Keyword(s):  
Clinical Trial ◽  
Wound Healing ◽  
Rank Test ◽  
Extraction Socket ◽  
Significance Level ◽  
Platelet Rich Fibrin ◽  
Dry Socket ◽  
Mandibular Molar ◽  
Alveolar Osteitis ◽  
Bonferroni Test

ABSTRACT Objective: To assess the efficacy of platelet-rich fibrin (PRF) on the pain and healing of the extraction socket related with established alveolar osteitis (dry socket, AO) after the removal of maxillary and mandibular molars. Materials and Methods: One hundred consecutive adult patients with age group ranging from 18 to 40 years along with established dry socket after maxillary and mandibular molar extractions who have not received any treatment for the same were included in this single-arm clinical trial. PRF was placed in the maxillary and mandibular molar extraction sockets after adequate irrigation of the socket. All the patients evaluated for the various study variables which include pain, degree of inflammation, and healthy granulation tissue formation (wound healing) at the 1st, 3rd, 7th, and 14th post-PRF placement day in the alveolar socket. Data were analyzed using Shapiro-Wilk's test, Chi-square test and/or Student's t-test, Friedman's test, Wilcoxon signed-rank test, and Bonferroni test, with the significance level set at P < 0.05. Results: There was significant reduction in pain associated with AO at the 3rd and 7th post-PRF placement day in the extraction socket along with mark decrease in the degree of inflammation at the 3rd post-PRF placement day, and there was better wound healing by the end of the 2nd week. Conclusion: The use of PRF in this clinical trial illustrates the promising results in terms of reduced pain and better healing in the patients with sustained AO.

scholarly journals The Correlation between Children’s Attachment of Working Mothers with Preschoolers’ Socialization

2017 ◽  
Vol 4 (4) ◽  
Author(s):  
Dr. Sri Maryati Deliana M.Si ◽  
Yuni Kusumastuti ◽  
Moh. Iqbal Mabruri S.Psi, M.Si
Keyword(s):  
Working Mothers ◽  
Social Acceptance ◽  
Correlation Method ◽  
Reliability Coefficient ◽  
Working Mother ◽  
Significance Level ◽  
Social Ability ◽  
High Category ◽  
Behavioral System ◽  
Very High

Preschoolers begin to recognize the new environment, so the children are required to be able to socialize with the social environment. Many factors that influence the formation of preschoolers’ social ability, one of those is the attachment of the child with the mother. That attachment is formed because of their interaction included the working mother. The attachment will impact the children’s social ability in their environment. This research is quantitative correlation method. The purpose of this study is to determine the correlation between children’s attachment of working mothers with their socialization. The population of this research is the working mothers of preschoolers in Semarang City, consist of 312 children from seven kindergartens in Semarang City that chosen randomly. The data were using Scale of Socialization measure that consists of 26 items that has avalidity coefficient between 0.370 to 0.669 at a significance level of 1% and reliability coefficient of 0.880. The second one is Scale of Attachment measure that consist of 30 items, that has validity coefficient between 0.421 to 0.767 at a significance level of 1% and reliability coefficient of 0.920. The data analysis method used was product moment correlation. The result is p = 0,00 at a significance level of 0,05, p <0,05, so that there is correlation between children’s attachment of working mothers with preschoolers’ socialization. The results showed a pattern of social behavior socialization competition, sympathy and mimics are on a high category. While the behavior patterns of social cooperation, generosity, passion will be social acceptance, empathy, dependency, attitude is friendly, unselfish behavior and viscosity is very high on the category. For attachment to that aspect of attachment behavior, attachment bond and attachment behavioral system at high category. Research a general results are disseminated in category and high attachment is very high on the category.

scholarly journals Condition of Soil Fertility and Sensory Profile of Smallholder Robusta Coffee in Jember District

2016 ◽  
Vol 32 (3) ◽  
pp. 192-197
Author(s):  
Niken Puspita Sari ◽  
Dwi Nugroho
Keyword(s):  
Soil Fertility ◽  
Sampling Method ◽  
Sensory Profile ◽  
Survey Method ◽  
Organic Carbon Content ◽  
Coffee Plantation ◽  
Coffee Plantations ◽  
Robusta Coffee ◽  
Medium Quality ◽  
Specialty Coffee

Jember district is one of the centers for smallholder plantation of the Robusta coffee in East Java. However, there are still limited reports about environmental conditions, particularly soil fertility of existing smallholder plantations and its effect on coffee flavor. The purpose of this study was to investigate the effect of soil fertility on flavor of coffee in existing smallholder Robusta coffee plantations in Jember district. This research was carried out by survey method in several area of the smallholder Robusta coffee plantation in Jember. Evaluation of sensory profile was carried out using cup test organoleptic method based on Standard cupping method of the Specialty Coffee Association of America. Research locations as subdistricts were chosen by purposive sampling method, namely Panti, Silo, Rambipuji, Sukorambi, and Tanggul subdistricts. Results of this study showed that soil of the smallholder Robusta coffee plantation in research locations possessed low organic carbon content in Sukorambi subdistrict and medium concentration in other locations. Nitrogen content was low in all locations, potassium in Sumber Baru subdistrict was high whereas other locations were medium. Phosphorus availability was high in all locations. Calcium and magnesium were medium in Panti, Sukorambi, Sumber Baru, and Silo subdistricts. Soil acidity was low in all locations. Results of the sensory analysis of smallholder’s Robusta coffee was from divided into three groups. First, categorized as fine Robusta coffee was smallholder’s Robusta coffee samples obtained from Silo and Sukorambi subdistricts. Second, good quality Robusta coffee was from smallholder Robusta coffee samples from Panti and Sumber Baru subdistricts. Third, medium quality Robusta coffee was from smallholder’s Robusta coffee from Tanggul subdistrict. Total scores of coffee testing from samples of Panti, Sukorambi, Sumber Baru, Tanggul, and Silo subdistrict were 79.8, 82.0, 79.9, 76.0, and 82.5, respectively

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