scholarly journals Oak Regeneration Guidelines for the Central Appalachians

2008 ◽  
Vol 25 (1) ◽  
pp. 5-16 ◽  
Author(s):  
Kim C. Steiner ◽  
James C. Finley ◽  
Peter J. Gould ◽  
Songlin Fei ◽  
Marc McDill
Keyword(s):  
Data Collection ◽  
Classification System ◽  
Development Model ◽  
Strong Component ◽  
Oak Regeneration ◽  
Regeneration Potential ◽  
Central Appalachians ◽  
Advance Regeneration ◽  
Stand Conditions ◽  
Stump Sprouts

Abstract This article presents the first explicit guidelines for regenerating oaks in the central Appalachians. The objectives of this paper are (1) to describe the research foundation on which the guidelines are based and (2) to provide users with the instructions, data collection forms, supplementarytables, and decision charts needed to apply the guidelines in the field. The principal research foundation for the guidelines is a set of quantitative models that estimate, in advance of harvest, a stand's potential to regenerate oak stocking from advance regeneration and stump sprouts. Regeneration potential is measured by the predicted stocking by oak species, expressed as a percentage of full (100%) stocking, in the new stand in its third decade (21–30 years) after overstory removal. An understory classification system is used in conjunction with the models to help identifypotential barriers to regeneration development. Model results and other data on current stand conditions are used in the decision charts to identify prescriptions for achieving a strong component of oak regeneration after stand harvest. Overstory removals are recommended when the stand's oak regeneration potential is adequate to meet management goals. Otherwise, prescriptions designed to enhance seedling-origin oak regeneration potential are recommended.

scholarly journals Assessment of the Regeneration Potential of Red Oaks and Ash on Minor Bottoms of Mississippi

1999 ◽  
Vol 23 (3) ◽  
pp. 133-138 ◽  
Author(s):  
Keith L. Belli ◽  
Christopher P. Hart ◽  
John D. Hodges ◽  
John A. Stanturf
Keyword(s):  
Assessment System ◽  
Diameter Class ◽  
High Quality ◽  
Regeneration Potential ◽  
Breast Height ◽  
Growing Seasons ◽  
Red Oaks ◽  
System A ◽  
Advance Regeneration ◽  
Stump Sprouts

Abstract Plots were established to monitor the success of advance regeneration for red oaks and ash on eight high quality sites on minor bottoms in Mississippi. Data were collected pre- and post-harvest, and annually for 3 yr following harvest. Red oak and ash stems were initially categorized by height class, or by diameter class for those stems at least 1 in. in diameter at breast height. Survival and competitive position were monitored to provide estimates of the probability of producing at least one free-to-grow stem 3 growing seasons following stand harvest. Regardless of species, the competitive advantage of larger seedlings and stump sprouts over smaller seedlings (less than 1 ft tall) was clear. Less than 10% of the smaller seedlings were free-to-grow after 3 growing seasons, whereas 26% to 71% of the larger seedlings and stump sprouts were judged free-to-grow after the same amount of time. Results were used to revise an existing regeneration assessment system. A field tally sheet was developed to aid in the application of the revised system. South. J. Appl: For. 23(3): 133-138.

scholarly journals Pengembangan Lembar Kerja Peserta Didik (LKPD) pada Materi Teks Fabel Berbasis Saintifik untuk Siswa SMP Kelas VIII

2019 ◽  
Vol 5 (2) ◽  
pp. 94-103
Author(s):  
Yeni Ernawati
Keyword(s):  
Data Collection ◽  
Language Teachers ◽  
Assessment Process ◽  
Development Model ◽  
Teaching Material ◽  
Material Component ◽  
Scientific Approach ◽  
Basic Competency ◽  
Class Viii ◽  
Expert Validation

The purpose of this study was to describe the needs of students and teachers for learning to write scientific-based fable text, produce teaching materials on Student Worksheet (LKPD) on scientific-based Fable Text material, and describe the results of expert validation of the developed LKPD. This research is a development study using a modification of the development model of Dick, Carey, and Carey and Jolly & Bolitho. The subjects of this study were students of class VIII and Indonesian Language Teachers. Data collection techniques are done using a questionnaire and documentation. The feasibility of the developed teaching material is known from the results of validation by three experts on the 4 components of teaching material, namely the component of material eligibility, language component, presentation component and graphic. Based on the results of expert validation, LKPD on the fable text material developed is categorized as good or suitable to be used as a textbook companion teaching material. In the content / material component, LKPD outlines one Basic Competency (KD) in each activity. Each activity is in accordance with the steps of the scientific approach that is equipped with worksheets and assessment rubrics so as to facilitate students and teachers in the learning and assessment process. In the language component, LKPD uses simple and effective language, and is equipped with a glossary to make it easier for students to understand new vocabulary. In the presentation and graphic components, LKPD uses larger types and font sizes, and attractive designs with illustrations of colored images.

scholarly journals Pengembangan Permainan Ular Tangga Bernuansa Islami Untuk Pembelajaran IPA

2019 ◽  
Vol 2 (2) ◽  
pp. 194-203
Author(s):  
Yesi Andra Yuni ◽  
Zulhanan Zulhanan ◽  
Sodikin Sodikin
Keyword(s):  
Data Collection ◽  
Research And Development ◽  
Product Design ◽  
Research Data ◽  
Development Model ◽  
Development Research ◽  
Game Development ◽  
Learning Resource ◽  
Free Trial

Abstract: This study aims to; 1) identifies the eligibility ladder snake game in Islamic learning IPA; 2) know the response of the students against Islamic ladder snake game in learning the IPA as a learning resource that will be developed. Methods in this study using the method of research and development (Research and Development) model Borg and Gall that have been developed through dimodifiksi; 1) potential and problems; 2) data collection; 3) product design; 4) validation of the design; 5) revision of the product; 6) free trial products; 7) revision of the product. Taken only up to seven steps because of the limitations. The research data was collected by using the sheet validation, the now and the response of the learners. The results of this research are; 1) game development ladder snake islami in IPA is well worth learning is used in learning based on the results of validation experts, namely 93.5% material experts, 80.5%, media expert and expert religion 100%; 2) on the response of the students performed at the three schools earn a percentage of the feasibility of an average of 93% with a very worthy category.Abstrak: Penelitianini bertujuan untuk; 1) mengidentifikasi kelayakan permainan ular tangga islami dalam pembelajaran IPA; 2) mengetahui respon peserta didik terhadap permainan ular tangga islami dalam pembelajaran IPA sebagai sumber belajar yang akan dikembangkan. Metode dalam penelitian ini menggunakan metode penelitian dan pengembangan (Research and Development) model Borg and Gall yang telahdimodifiksi yang dikembangkan melalui; 1) potensi dan masalah; 2) pengumpulan data; 3) desainproduk; 4) validasidesain; 5) revisiproduk; 6) ujicobaproduk; 7) revisiproduk. Langkah yang diambil hanya sampai dengan tujuh langkah karena keterbatasan. Data penelitian ini dikumpulkan dengan menggunakan lembar validasi, angket dan respon peserta didik. Hasil penelitian ini adalah; 1) pengembangan permainan ular tangga islami dalam pembelajaran IPA sangat layak digunakan dalam pembelajaran berdasarkan hasil validasi para ahli, yaitu ahli materi 93,5%, ahli media 80,5%, dan ahli agama 100%; 2) pada respon peserta didik yang dilakukan di tiga sekolah mendapatkan persentase kelayakan rata-rata sebesar 93% dengan kategori sangat layak.

scholarly journals Development of Learning Media Based on VideoScribe to Improve Writing Skill for Descriptive Text of English Language Study

2018 ◽  
Vol 3 (2) ◽  
pp. 187 ◽  
Author(s):  
Novita Aryuntini ◽  
Indri Astuti ◽  
Yohanes Gatot Sutapa Yuliana
Keyword(s):  
Data Collection ◽  
English Language ◽  
Development Model ◽  
Performance Tests ◽  
Development Research ◽  
Instructional Media ◽  
Development Stages ◽  
Before And After ◽  
And Performance ◽  
Initial Research

This study generally aims to develop VideoScribe-based learning media to improve the ability in writing descriptive text in English subjects. The development model used in this study is a combination of Borg and Gall development research steps, and the design of 4D-Thiagarajan  learning model includes initial research and information gathering, planning stages, design stages, development stages, revision, and final product stages. The techniques of data collection in this study were carried out through indirect communications and test. Data collection tools used was questionnaires, observation’s sheet, and performance tests. The results showed that the design of instructional media development in this study consisted of (1) The design of the development of learning media was conducted using the modified models Borg and Gall and 4D Thiagarajan. (2) The application of VideoScribe-based learning media through activity as follows a) preparation, b) introduction, d) Evaluation, e) closing. (3) After applying VideoScribe-based learning media to improve students’ ability on writing Descriptive Text in English subjects and conducted pretest and posttest, it can be concluded that there is an increase in students' ability in writing Descriptive Text before and after the use of learning media.

Oak Regeneration Potential Increased by Shelterwood Treatments

1993 ◽  
Vol 10 (4) ◽  
pp. 149-153 ◽  
Author(s):  
Richard C. Schlesinger ◽  
Ivan L. Sander ◽  
Kenneth R. Davidson
Keyword(s):  
Hardwood Forest ◽  
Oak Forests ◽  
Density Level ◽  
Oak Regeneration ◽  
Regeneration Potential ◽  
Forest Region ◽  
Oak Trees ◽  
The Right ◽  
Method Show ◽  
Potential Tool

Abstract In much of the Central Hardwood Forest Region, oak species are not regenerating well, even though large oak trees are common within the existing forests. The shelterwood method has been suggested as a potential tool for establishing and developing advanced regeneration where it is lacking. The 10-yr results from a study of several variants of the shelterwood method show that on good sites in the Missouri Ozarks Region, a heavy understory treatment is most important, while on average sites, reducing the overstory density level is most important. The right combinations of overstory and understory treatments will likely be different for different stands and locations, but the shelterwood method does appear to be a useful silvicultural tool for perpetuating central hardwood oak forests. North. J. Appl. For. 10(4): 149-153.

scholarly journals Oak Regeneration in the Southern Appalachians: Potential, Problems, and Possible Solutions

1998 ◽  
Vol 22 (1) ◽  
pp. 11-18 ◽  
Author(s):  
James E. Cook ◽  
Terry L. Sharik ◽  
David Wm. Smith
Keyword(s):  
Review Article ◽  
Oak Forests ◽  
Southern Appalachians ◽  
Limiting Factor ◽  
Oak Regeneration ◽  
Advance Regeneration ◽  
Southern Appalachian ◽  
Stump Sprouting ◽  
Low Levels ◽  
A Site

Abstract Despite the large volumes written about "oak regeneration problems" on mesic sites, very little has been presented on the extent of regional variation in oak regeneration. In this review article, we examine several important facets of oak regeneration for the Southern Appalachian region. We conclude that: (1) the amount of reproduction (seedlings and/or sprouts) is seldom a limiting factor because these oak forests have an average advance regeneration density of more than 9000/ha; (2) about 75% of all oak stems sprout after harvesting, which; (3) makes stump sprouts a major source of oak regeneration and a more important component than in the Midwest; (4) harvesting usually leads to an increase in the number of oak seedlings on a site (mean density for the first 3 yr equals 15,750/ha); (5) on sites of SI50 = 17-19m, oaks typically make up 25-40% of the canopy 2-3 decades after a harvest; (6) on sites of SI > 20m, clearcutting leads to very low levels (~10%) of oak representation in the subsequent forest, whereas a shelterwood harvest will result in 25-30% oak abundance; and (7) a harvest of an oak-dominated forest, without any other treatments, will lead to a 50-70% decline in oak. These results suggest that there is ample potential to regenerate current oak forests to oak, but new trials are needed with more species and on a greater range of sites. Increasing the size of the advance regeneration and maximizing stump sprouting are two ways to increase the amount of oak after harvest. However, regeneration cuts by themselves will not assure maintenance of the oak component; several treatments that have shown promise—midstory manipulation, fire, and weeding—are recommended for further study. South. J. Appl. For. 22(1):11-18.

scholarly journals Insights into the Effects of the Dental Stem Cell Secretome on Nerve Regeneration: Towards Cell-Free Treatment

2019 ◽  
Vol 2019 ◽  
pp. 1-19 ◽  
Author(s):  
Rohaina Che Man ◽  
Nadiah Sulaiman ◽  
Ruszymah Bt Hj Idrus ◽  
Shahrul Hisham Zainal Ariffin ◽  
Rohaya Megat Abdul Wahab ◽  
...  
Keyword(s):  
Stem Cell ◽  
Data Collection ◽  
Nerve Regeneration ◽  
Cell Delivery ◽  
Inclusion Criteria ◽  
Regeneration Potential ◽  
Free Treatment ◽  
Dental Stem Cell

Cell-free treatment is emerging as an alternative to cell delivery to promote endogenous regeneration using cell-derived factors. The purpose of this article was to systematically review studies of the effects of the dental stem cell secretome on nerve regeneration. PubMed and Scopus databases were used where searched and related studies were selected. The primary search identified 36 articles with the utilized keywords; however, only 13 articles met the defined inclusion criteria. Eight out of thirteen articles included in vivo and in vitro studies. We classified the dental stem cell-derived secretome with its nerve regeneration potential. All studies demonstrated that dental stem cell-derived factors promote neurotrophic effects that can mechanistically stimulate nerve regeneration in neurodegenerative diseases and nerve injury. This data collection will enable researchers to gather information to create a precise formulation for future prescribed treatments.

scholarly journals Landscape Terms of Thai Coast-Dwellers

MANUSYA ◽  
2013 ◽  
Vol 16 (1) ◽  
pp. 65-82
Author(s):  
Sunee Kamnuansin
Keyword(s):  
Data Collection ◽  
Cultural Heritage ◽  
Knowledge Base ◽  
Classification System ◽  
Local Ecological Knowledge ◽  
Marine Resources ◽  
Ecological Knowledge ◽  
Natural Environments ◽  
Folk Taxonomy

This paper examines terms and classification of landscape among coastdwellers who earn a living by exploiting marine resources. It is based on fieldwork conducted from the end of 2009 to the end of 2010 with a group of local Thai coastal dwellers in Bang Khunsai Subdistrict, Ban Laem District in Phetchaburi Province. Data collection involved interviews and observation, especially during fieldwalking in the area with the locals. An analysis of componential meaning and folk taxonomy is applied for this study. Landscape terms reflect the coast-dwellers’ perceptions and classification system of their natural environments and enable us to understand the local ecological knowledge, a crucial knowledge base for management, utilization, and conservation of marine resources. It is also seen as an important part of their cultural heritage.

scholarly journals PENGEMBANGAN LEMBAR KERJA PESERTA DIDIK (LKPD) INDUSTRI KECIL KIMIA BERORIENTASI KEWIRAUSAHAAN UNTUK SMK

2015 ◽  
Vol 1 (1) ◽  
pp. 46 ◽  
Author(s):  
Artina Diniaty ◽  
Sri Atun
Keyword(s):  
Data Collection ◽  
Research And Development ◽  
Chemical Industry ◽  
Product Evaluation ◽  
Development Model ◽  
Small Scale ◽  
Chemistry Teachers

This study aims for developing students’ worksheet of entrepreneurship-oriented small-scale chemical industry, and investigating the quality of entrepreneurship-oriented small-scale chemical industry that is appropriate to be implemented in learning. This study is classified to research and development which refers to Borg & Gall development model. This research consists of four steps: which are introduction, planning, developing, and product evaluation. The product evaluation was conducted by peers, material and media experts, and chemistry teachers. The data collection instruments used validation sheet of the products. The results show that the developed products are in the form of students’ worksheet of entrepreneurship-oriented small-scale chemical industry, and the result of the assessment by chemistry teachers shows the average assessment is a good category so that this  worksheet is feasible to be used in learning.

scholarly journals Pengembangan Media Pembelajaran E-Learning Dengan Model Pembelajaran Flipped Classroom Berbasis Edmodo Pada Mata Pelajaran Informatika

2021 ◽  
Vol 10 (1) ◽  
pp. 13
Author(s):  
Dedi Rahman ◽  
P Wayan Arta Suyasa ◽  
Dessy Seri Wahyuni
Keyword(s):  
Data Collection ◽  
Research And Development ◽  
Flipped Classroom ◽  
Development Model ◽  
Average Score ◽  
Validity Test ◽  
E Learning ◽  
The Subject

The purpose of this study were (1) Produced a design and implemented the development of e-learning learning media with Edmodo-based Flipped Classroom model in Informatics subject of class VII in SMP Negeri 2 Mengwi, (2) Determined the subject teacher and students’ responses towards the development of e-learning learning media with Edmodo-based Flipped Classroom model in Informatics subject of class VII in SMP Negeri 2 Mengwi. The study was a Research and Development (R&D) research with ADDIE development model. This study involved students from VII A class and teacher of Informatics subject in SMP Negeri 2 Mengwi. The method of data collection was questionnaire. The result of the study showed that (1) The design and the implemented e-learning media were success implemented based on validity test from content experts, design experts, and learning media experts with Aiken's V coefficient average score  0,89 and very valid, (2) The teacher and students’ responses showed the average score were 40 for the teacher and 61,8 for the students, meaning that it was included in very positive category with very practical criteria. 

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