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Letteratura scientifica selezionata sul tema "Indicators (biology)"

Autore: Grafiati

Pubblicato: 4 giugno 2021

Ultima modifica: 29 luglio 2024

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Articoli di riviste sul tema "Indicators (biology)"

Kurnia, Septi, Saleh Hidayat e Sri Wardhani. "Analisis Minat dan Hasil Belajar Biologi Siswa pada Pembelajaran Daring di SMA Negeri Purwodadi Kabupaten Musi Rawas". BIODIK 7, n. 4 (17 dicembre 2021): 70–76. http://dx.doi.org/10.22437/bio.v7i4.14489.

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The purpose of the study was to determine the interest and learning outcomes of students' biology in online learning at SMA Negeri Purwodadi, Musi Rawas Regency. This research is a qualitative descriptive study using a case study research strategy. Based on the results of the questionnaire given to students, there were 130 students who answered the questionnaire. There are four indicators of learning interest that are measured, namely feelings of pleasure, interest, attention and involvement. The happy feeling indicator is a high enough indicator for interest in learning because all students feel happy to take part in biology learning during online learning because students can do online learning anywhere. Then from the indicators of student interest in learning, the involvement indicator is the lowest indicator because students in online learning do not have the awareness to study independently at home. The results of students' biology learning in online learning KD 3.14 which is about the immune system there are 22 students with the lowest score of 75 and 37 students getting the highest score of 98. Abstrak. Tujuan dari penelitian adalah untuk mengetahui minat dan hasil belajar biologi siswa pada pembelajaran daring di SMA Negeri Purwodadi Kabupaten Musi Rawas. Penelitian ini merupakan penelitian deskriptif kualitatif dengan menggunakan strategi penelitian studi kasus. Berdasarkan hasil angket yang diberikan kepada siswa terdapat 130 siswa yang menjawab angket. Terdapat empat indikator minat belajar yang diukur yaitu perasaan senang, ketertarikan, perhatian dan keterlibatan. Indikator perasaan senang merupakan indikator yang cukup tinggi untuk minat belajar karena seluruh siswa merasa senang mengikuti pembelajaran biologi selama pembelajaran daring karena siswa dapat melakukan pembelajaran daring dimana saja. Kemudian dari indikator minat belajar siswa indikator keterlibatan merupakan indikator yang paling rendah karena siswa pada pembelajaran daring siswa kurang memiliki kesadaran untuk belajar secara mandiri dirumah. Hasil belajar biologi siswa pada pembelajaran daring KD 3.14 yaitu tentang sistem imun terdapat 22 siswa dengan nilai terendah 75 dan 37 siswa mendapatkan nilai tertinggi yaitu 98.

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Ardiansyah, Ryan, e Dea Diella. "The ability of quantitative literacy of pre-service biology students". Jurnal Pendidikan Biologi Indonesia 3, n. 3 (26 novembre 2017): 208. http://dx.doi.org/10.22219/jpbi.v3i3.4874.

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This research have purpose to know and describe quantitative literacy of pre-service biology students based on six indicators of quantitative literacy. Methods used is descriptive with study survey. This research carried out at Siliwangi University with the subject as many as 30 pre-service biology students who take plant anatomy course. Based on the analysis of test and interview obtained that of 30 students, 4 students (13.3%) in high category, 10 students (33.3%) in medium category, and 16 students (53.3%) in low category. Overall, indicator of interpretation have succeeded owned by students, but other five indicators have not been owned. Lack of quantitative literacy of pre-service biology students is caused by course characteristics that tends to qualitative teaching materials that is not based on quantitative literacy, and inadequate facility to gain and analyzed quantitative data.

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Daryanes, Febblina, e Riki Apriyandi Putra. "Creative Thinking Ability of Biology Teachers at State Senior High Schools in Pekanbaru". AL-ISHLAH: Jurnal Pendidikan 14, n. 4 (15 settembre 2022): 5383–92. http://dx.doi.org/10.35445/alishlah.v14i4.1377.

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The teacher is one of the determinants of success in the learning process and the formation of the soft skills and hard skills of the students. If a teacher has the ability to think creatively and make decisions with a focus on improving higher-order thinking and is consistent over time, it is likely to be successful in training students' creative thinking skills. This study aims to analyze the level of creative thinking skills of Biology teachers at SMA Negeri Pekanbaru City. The population in this study were all Biology teachers in Pekanbaru City Senior High School, amounting to 62 people. The sampling technique used was saturated sampling. Data was collected using questionnaires and interview guidelines, the questionnaire was compiled based on 4 indicators of creative thinking developed by Marzano. The questionnaire data was analyzed by calculating the percentage and then interpreted into several categories, while the results of the interviews were analyzed qualitatively. The results showed that the level of creative thinking skills of Biology teachers in Pekanbaru City High School was 81.35%. The indicator of creative thinking ability, namely "developing new ways" is the indicator with the highest achievement, which is 83.1%. The indicator of creative thinking ability "setting personal standards" has the lowest achievement among other indicators, which is 78.7%. Teachers who have been teaching for more than 20 years achieved very good categories on the indicators of “maximizing skills and knowledge” and “setting and using personal standards”. From the results of the study, it can be concluded that the level of creative thinking of Biology Teachers in Pekanbaru City Senior High School is in the good category

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Supriyadi, Supriyadi, Widyatmani Sih Dewi, Desmiasari Nugrahani, Adila Azza Rahmah, Haryuni Haryuni e Sumani Sumani. "The Assessment of Soil Quality Index for Paddy Fields with Indicator Biology in Jatipurno Districts, Wonogirl". Modern Applied Science 14, n. 1 (26 dicembre 2019): 20. http://dx.doi.org/10.5539/mas.v14n1p20.

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Increased rice needs in an extensive use of paddy fields in the Jatipurno, Wonogiri. Managing rice fields can reduce soil quality. Proper management can improve soil quality, Jatipurno has management such as organic, semi-organic and inorganic paddy field management which have a real effect on soil quality. Assessment of soil quality is measured by physical, chemical and biological indicators, where each factor has a different effect. The chemical indicators are often used as the main indicators for determining soil quality, whereas every parameter has the opportunity to be the main indicator. So, biological indicators can play indicators. The main indicators are obtained from the correlation test (p-values ≤ 0,05 - < 0,01) and Principal Component Analysis with high value, eigenvalues > 1 have the potential to be used as Minimum Data Sets. The result is biological can be able to use as the Minimum Data Set such as microbial carbon biomass, respiration, and total bacterial colonies. The Soil Quality Index (SQI) of various paddy management practices shows very low to low soil quality values. The management of organic rice systems shows better Soil Quality Index with a score of 0,20 compared to other management. The practice of organic rice management shows that it can improve soil quality.

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Miller, Alison L., Niko Kaciroti, Julie Sturza, Lauren Retzloff, Katherine Rosenblum, Delia M. Vazquez e Julie C. Lumeng. "Associations between stress biology indicators and overweight across toddlerhood". Psychoneuroendocrinology 79 (maggio 2017): 98–106. http://dx.doi.org/10.1016/j.psyneuen.2017.02.013.

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BITTER, PETER H., e RODNEY D. NORBY. "Fossil epithelial cell imprints as indicators of conodont biology". Lethaia 27, n. 3 (settembre 1994): 193–98. http://dx.doi.org/10.1111/j.1502-3931.1994.tb01408.x.

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Fernandez, Vandi, Liza Fadillah Tunnisa, Nur Rahmatul Aulia e Nurkhairo Hidayati. "MINAT BELAJAR SISWA TERHADAP PEMBELAJARAN BIOLOGI DENGAN MENGGUNAKAN MEDIA POWERPOINT". Didaktika Biologi: Jurnal Penelitian Pendidikan Biologi 5, n. 1 (21 giugno 2021): 17. http://dx.doi.org/10.32502/dikbio.v5i1.2993.

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Pembelajaran akan dapat dipahami apabila siswa memiliki minat terhadap mata pelajaran yang dipelajarinya, termasuk biologi. Minat belajar siswa dapat dipengaruhi oleh penggunaan media pembelajaran. Tujuan penelitian adalah mengetahui minat belajar siswa kelas XII MIPA SMAN 1 Ujung Batu terhadap mata pelajaran biologi dengan menggunakan media powerpoint. Penelitian ini merupakan jenis survei dengan instrumen berupa angket yang diberikan kepada siswa melalui google form berisi 30 item pernyataan. Indikator minat pada angket adalah kesenangan, ketertarikan, perhatian, dan keterlibatan siswa pada mata pelajaran biologi. Analisis data dilakukan dengan cara menghitung skor angket masing-masing siswa, kemudian menjadikannya dalam persentase dan diinterpretasi dengan kategori sangat baik, baik, kurang baik, dan tidak baik. Hasil penelitian menunjukkan indikator kesenangan siswa sebesar 66,37%, ketertarikan siswa sebesar 72,43%, perhatian siswa sebesar 73,62%, dan keterlibatan siswa 79%. Penelitian ini pada akhirnya menghasilkan simpulan bahwa 72,85% siswa memiliki minat yang dikategorikan baik selama mengikuti proses pembelajaran biologi dengan menggunakan media powerpoint. Keterlibatan siswa pada mata pelajaran biologi adalah indikator paling tinggi (sangat baik) karena ketika guru menayangkan media powerpoint dan terdapat point materi yang tidak dipahami siswa, maka siswa akan berusaha membacanya berulang kali dan menanyakan kepada guru. Learning will be understood if students have an interest in the subjects they are studying, including biology. Students' interest in learning can be influenced by the use of learning media. The purpose of the study was to determine the learning interest of class XII MIPA students of SMAN 1 Ujung Batu towards biology subjects using powerpoint media. This study was a type of survey with an instrument in the form of a questionnaire that given to students via a google form containing 30 statement items. The indicators of interest in the questionnaire were the students' enjoyment, interest, attention, and involvement in biology subjects. Data analysis was carried out by calculating the score of each student's questionnaire, then making it a percentage and interpreting it with categories of very good, good, less good, and not good.The results showed that the indicators of students’ enjoyment was 66.37%, students’ interest was 72.43%, students’ attention was 73.62%, and students’ involvement was 79%. This study ultimately resulted in the conclusion that 72.85% of students had good interest during the biology learning process using powerpoint media. The involvement of students in biology was the highest indicator (very good) because when the teacher showed the powerpoint media and there were material points that the students did not understand, the students would try to read it repeatedly and ask the teacher.

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Luo, Fang, Yin Wei, Ziyue Wang, Minmin Luo e Ji Hu. "Genetically Encoded Neural Activity Indicators". Brain Science Advances 4, n. 1 (settembre 2018): 1–15. http://dx.doi.org/10.26599/bsa.2018.9050007.

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Recent years have witnessed the fascinating development of imaging approaches to studying neural activities; this progress has been based on an influx of ideas and methods from molecular biology and optical engineering. Here we review the design and application of genetically encoded indicators for calcium ions, membrane potential and neurotransmitters. We also summarize common strategies for the design and optimization of genetically encoded neural activity indicators.

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Maknun, Djohar, Zuhdan Kun Prasetyo e Djukri Djukri. "Guided inquiry laboratory to improve research skills of prospective biology teachers". International Journal of Evaluation and Research in Education (IJERE) 11, n. 4 (1 dicembre 2022): 2122. http://dx.doi.org/10.11591/ijere.v11i4.22104.

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<span lang="EN-US">This study described guided-inquiry laboratory impact on increase in research skills of prospective biology teachers. Skill research indicators are designing, implementing, and reporting. This study was a non-equivalent control group design using experimental and control groups. Data were collected from 60 participants through observation of research skill indicators, namely designing, performing, and reporting then analyzed quantitatively-descriptively. The sample was selected using purposive sampling. The results confirmed that the guided-inquiry laboratory application has a more effective impact on improving research skills than ordinary learning. Each indicator of research skills (designing, performing, and reporting in the experimental class) meets the "Medium" category, while the "Low" category in the control class. This study concluded that the guided inquiry laboratory has a positive impact in improving the research skills of prospective biology teachers. This research provides a reference for teachers to explore the research abilities of their students.</span>

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Prasetyo, Mohammad Mulyadi, e Nurhidayah Nurhidayah. "Analisis Soal Ujian Biologi Tipe Higher Order Thinking Skill Berbasis Daring Selama Masa Pandemi Covid 19 Sekolah Menengah Atas". JURNAL EKSAKTA PENDIDIKAN (JEP) 5, n. 2 (30 novembre 2021): 128–34. http://dx.doi.org/10.24036/jep/vol5-iss2/614.

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This research is a descriptive study where data is collected with the aim of knowing the characteristics and obtaining information about the Higher Order Thinking Skill (HOTS) type of Final Exam questions. The subject of this research is the Biology Final Semester Examination for the 2020/202 Academic Year. This research has two stages, namely: Preparation and implementation stage to obtain documents in the form of school exam questions. Research data were collected through: (1) Problem Analysis, Researchers, biology education lecturers, and biology teachers analyzed each question from 3 characteristics that were fulfilled in each item, namely indicators consisting of stimulus, critical thinking skills, and solving abilities. problem. (2). Carry out FGD (Focus Group Discussion) to determine whether each item is included in the type of stimulus, critical thinking ability, and problem solving ability. (3) Tabulate the data for the results of the analysis of each question number. then the results of the analysis are tabulated on each indicator. The results obtained in this study are almost all HOTS type questions (95%), on the characteristics of almost all items (94.2%) in accordance with the provisions of competency achievement indicators. On the stimulus indicator, all HOTS type questions have a stimulus. Where "half" of the HOTS questions is stimulated by pictures, "less than half" is stimulated by case fragments and a small portion is stimulated by diagrams, tables, and examples. In critical thinking indicators, 91.86% of the "almost all" categories of HOTS questions have critical thinking characteristics, in addition that "a small part" (26.23%) of HOTS questions have problem solving characteristics including problem solving questions with indicators of identifying problems, identifying non-conforming problems, and solving problems based on data.

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Più fonti

Tesi sul tema "Indicators (biology)"

Call, Erynn. "River birds as indicators of change in riverine ecosystems". Thesis, The University of Maine, 2015. http://pqdtopen.proquest.com/#viewpdf?dispub=3663177.

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River-associated birds may be valuable indicators of environmental change in riverine ecosystems because they are predators of fishes and therefore often top predators in the aquatic food web. To evaluate the likely scope of one form of change - river restoration through dam removal and the expected return of abundant diadromous fish prey - we: 1) developed an appropriate river bird survey protocol; 2) documented the relative importance of sea-run fish in the diet of four river bird species, bald eagle (Haliaeetus leucocephalus), osprey (Pandion haliaetus), belted kingfisher (Megaceryle alcyon), and tree swallow ( Tachycineta bicolor); 3) documented nest distribution and brood size of osprey; and 4) investigated the relationships between river bird abundance and various habitat parameters. We expect these measures will reflect changes to the river system post-dam removal as diadromous fish populations recover, proliferate, and integrate into the food web. Based on species accumulation curves and first-order Jacknifes, we concluded that biweekly or triweekly I5 minute surveys are sufficient to meet our objectives. Within the Penobscot River, stable isotope analysis of river bird diets indicated that marine nutrients are consumed by bald eagle, osprey, and belted kingfishers that reside below the lowermost dam, but not tree swallows. Despite greater connectivity for and abundance of spawning diadromous fishes (particularly river herring), in the Kennebec and Sebasticook Rivers as compare to the Penobscot River, osprey brood size was not significantly larger. We suspect other factors such as competition with bald eagles may be limiting the benefit of large river herring runs to nesting osprey. Finally, an ordination of 26 river bird species and 5 single-species (invertivore - spotted sandpiper, piscivore - osprey; piscivore - bald eagle; insectivore - tree Swallow; and omnivore - American black duck) generalized linear models, I revealed associations between estimated species abundance and water flow, water level, distance from the river mouth (river kilometer), site position in relation to a dam (e.g. above, below, or not at a dam), and adjacent land cover composition.

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Potts, Tavis William. "Sustainability indicators in marine capture fisheries". Connect to this title online, 2003. http://eprints.utas.edu.au/234/.

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Vinluan, Edlin Artuz. "Survival of Microbial Indicators In constructed Wetlands". Thesis, The University of Arizona, 1996. http://etd.library.arizona.edu/etd/GetFileServlet?file=file:///data1/pdf/etd/azu_etd_hy0275_sip1_w.pdf&type=application/pdf.

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Giesen, Myra J. "Late prehistoric populations in the Ohio area : biological affinities and stress indicators /". The Ohio State University, 1992. http://rave.ohiolink.edu/etdc/view?acc_num=osu1487778663284737.

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Krutsinger, Roxane. "Evaluation of Grassland Restoration Success in Illinois Using Indicators of Ecosystem Function". Thesis, Southern Illinois University at Edwardsville, 2014. http://pqdtopen.proquest.com/#viewpdf?dispub=1556741.

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Grasslands are known to have been an important ecosystem in the Illinois landscape prior to European settlement. They have been severely impacted by changes in land use such as the conversion of native grasslands to agricultural land for the production of crops and livestock. Grassland ecosystems are known to provide several essential ecosystem functions that are important for the maintenance of the ecosystem and for human survival. Some of the ecosystem functions associated with grasslands include: nutrient cycling, carbon sequestration, and the cleansing of environmental contaminants from water or soil. As grasslands are converted to agricultural use, their ability to perform these ecosystem functions are greatly impaired or lost completely. Due to their recognized importance, grassland restoration projects have been given high priority by conservationists and governmental agencies around the world. Some grassland restorations aim to restore the native vegetation including the great species richness that grasslands, and prairie ecosystems in particular, are known for. Other projects, like the Conservation Reserve Program (CRP), aim to restore one of the vital ecosystem functions that grasslands provide. The measure of success for a grassland restoration has largely been evaluated using species composition and indices of species richness and evenness. These types of measurements do not directly assess the ability of a restoration site to perform the ecosystem functions of a native grassland. The aim of this study is to determine if ecosystem function is recovered over time since restoration. This will be accomplished using a chronosequence of grassland restorations at the Nature Institute in Godfrey, IL ranging from 1 year to 25 years since restoration. Several indicators of ecosystem functioning will be assesses at each site including: soil bulk density, soil organic matter, and peak standing crop. The differences in these characteristics among the sites were analyzed by one-way ANOVA followd by Tukey’s HSD test if significant. All properties were analyzed using linear regression to assess their fit to a linear model. Soil bulk density was found to moderately but significantly decrease in response to time since restoration (p = 0.0049) indicating a recovery from soil compaction and improved soil structure. Differences were detected in soil organic matter among the sites, but no linear trend in response to time since restoration was detected. Similarly with peak standing crop, differences were detected among the sites, but no linear trend with time since restoration. The lack of a predictable recovery in soil characteristics over time was attributed to differences in historical land use. In order to strengthen this study in the future, analysis of a remnant prairie and older restoration sites should be examined.

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Hennig, Helmke Friedrich-Karl Otto. "Baseline surveys and metal binding proteins as metal pollution indicators". Doctoral thesis, University of Cape Town, 1985. http://hdl.handle.net/11427/22479.

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Bibliography: pages 304-309.
The field of metal determination as a part of pollution studies, has been critically examined and metal pollution may be defined in one simple statement: The presence of metal binding proteins confirms toxic metal pollution. It has been shown that current methods of metal determination in biological systems are of little use. This has been illustrated by both a review of metal concentration in Southern African coastal water, sediments and biotopes, and by a comparative baseline study of organisms from Gough Island and Mar ion Island. These showed that extrapolation of results from one geographical area to another are invalid and that this interpretation is made difficult by factors such as age, sex, size life stage of the organisms. Furthermore, it was shown that many reports on metal pollution do not even mention fundamental information such as the size or the sex of the animals. Metal pollution could be linked to metal binding protein through an independent pollution er i ter ia, for example, the out of season moulting of crayfish. The new definition of metal pollution has then been tested by application to five different organisms (crayfish, Jasus lalandii; hermit crab, Diogenes brevirostris; shrimp, Palaemon pacificus; black mussel, Choromytilus meridionalis and limpet, Patella granularis) kept under identical conditions and it was shown that a much more meaningful interpretation of the results could be made. The new definition was al so tested with two naturally occurring metal accumulating organisms (whelk, Bullia digitalis and "kikuyu" grass) and it was shown that dramatic increases in metal may not necessarily be toxic. It was concluded that less effort and time should be spent on metal analysis in determination of metal pollution and attention should rather be directed to the presence or absence of metal-binding proteins.

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Greffard, Marie-Helene. "Chironomids as indicators of environmental change in shallow lakes of northeastern United States". Thesis, McGill University, 2010. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=86992.

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Despite the widespread use of chironomids in biomonitoring and paleoenvironmental research to infer environmental change, there is disagreement over the level of taxonomic resolution required for meaningful ecological interpretations. An objective of my thesis was to evaluate the differences in environmental inferences drawn at two different levels of taxonomic resolution. I found similar results between both levels of resolution with both live and sub-fossil datasets, but a number of taxa had different ecological preferences when examined at different resolutions. Another objective was to develop a chironomid-based training set, to identify the biotic and abiotic environmental variables that explain a significant amount of variation in the structure of surface sediment chironomid assemblages and to develop transfer functions for these environmental variables. Turbidity, dissolved inorganic carbon and drainage ratio were found to be the most influential environmental variables in our lake-set and robust transfer functions were developed for turbidity and chlorophyll a.
Les chironomides sont souvent utilisées dans la recherche paléo-environnementale des lacs pour reconstruire les changements environnementaux. Même si les chironomides sont utilisées largement comme indicateur biologique, il y a un désaccord concernant la résolution taxonomique utilisée pour obtenir des interprétations écologiques significatives. Le premier objectif de l'étude était de comparer les inférences environnementales obtenues d'analyses réalisées selon deux résolutions taxonomiques différentes; d'une part à résolution fine et d'autre part à résolution grossière. La majorité des résultats étaient similaires, cependant, quelques taxa avaient des préférences écologiques variées lorsqu'elles sont étudiées à des résolutions différentes. Le deuxième objectif était de calibrer les chironomides récupérées dans des sédiments de surface avec les variables environnementales de 26 lacs peu profonds dispersés dans le nord-est des États-Unis et de développer, lorsque possible, des modèles d'inférences. La turbidité, le taux de carbone non-organic dissous, et le ratio de drainage ont été identifiés comme les variables environnementales qui ont une grande influence sur la structure des communautés des chironomides dans nos lacs d'études.

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Ravenscroft, John Elmer. "Evaluation of survival and recovery characteristics of bifidobacteria as indicators of fecal pollution of water". Morgantown, W. Va. : [West Virginia University Libraries], 2000. http://etd.wvu.edu/templates/showETD.cfm?recnum=1613.

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Thesis (M.S.)--West Virginia University, 2000.
Title from document title page. Document formatted into pages; contains xi, 138 p. : ill. (some col.). Vita. Includes abstract. Includes bibliographical references (p. 133-137).

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Erdner, Deana Lynn 1969. "Characterization of ferredoxin and flavodoxin as molecular indicators of iron limitation in marine eukaryotic phytoplankton". Thesis, Massachusetts Institute of Technology, 1997. http://hdl.handle.net/1721.1/45490.

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Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Biology, 1997.
"Funding was provided by a Department of Energy Graduate Fellowship for Global Change and an Exploratory Research Agreement No. RP8021-05 from the Electric Power Research Institute."
Includes bibliographical references.
by Deana L. Erdner.
Ph.D.

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Van, Heerden Johannes Hendrik. "Peripheral blood mononuclear cells as non-invasive diagnostic indicators of stress-associated neural states". Master's thesis, University of Cape Town, 2008. http://hdl.handle.net/11427/4347.

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Includes abstract.
Includes bibliographical references (leaves 155-181).
Researchers have demonstrated the ability to predict psychopathological states from human peripheral immune tissure transcriptional profiles, using microarrays. Although evidence in support of such an approach as a viable diagnostic avenue within psychiatric settings is accumulating, it remains to be demonstrated, in an animal model, that transcriptional changes in peripheral tissue targets are paralleled by specific gene expression changes in neural tissues.

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Più fonti

Libri sul tema "Indicators (biology)"

H, McKenzie Daniel, Hyatt D. Eric, McDonald V. Janet e International Symposium on Ecological Indicators (1990 : Fort Lauderdale, Fla.), a cura di. Ecological indicators. London: Elsevier Applied Science, 1992.

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F, Soule Dorothy, e Kleppel G. S, a cura di. Marine organisms as indicators. New York: Springer-Verlag, 1988.

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Arndt, U. Bioindikatoren: Möglichkeiten, Grenzen und neue Erkenntnisse. Stuttgart: E. Ulmer, 1987.

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2004), Hohenheimer Umwelttagung (35th. Umweltindikatoren - Mythos oder Wirklichkeit?: Was wissen wir wirklich über unsere Umwelt? :[eine Dokumentation der 35. Hohenheimer Umwelttagung ... vom 30. Januar 2004 in Stuttgart-Hohenheim]. Stuttgart: Wissenschaftliche Verlagsgesellschaft, 2005.

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International Conference on Environmental Indices Systems Analysis Approach (1st 1997 Saint Petersburg, Russia). Environmental indices systems analysis approach. Oxford: EOLSS, 1999.

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A, Bortone Stephen, a cura di. Estuarine indicators. Boca Raton, FL: CRC Press, 2005.

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Bellinger, E. G. Freshwater algae: Identification and use as bioindicators. Chichester, West Sussex, UK: Wiley-Blackwell, 2010.

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van, Straalen N. M., Krivolut͡s︡kiĭ D. A, North Atlantic Treaty Organization. Scientific Affairs Division. e NATO Advanced Research Workshop on New Approaches to the Development of Bioindicator Systems for Soil Pollution (1995 : Moscow, Russia), a cura di. Bioindicator systems for soil pollution. Dordecht: Kluwer Academic, 1996.

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B, Peakall David, Walker C. H. 1936-, Migula Pawel, North Atlantic Treaty Organization. Scientific Affairs Division. e NATO Advanced Research Workshop on Biomarkers: a Pragmatic Basis for Remediation of Severe Pollution in Eastern Europe (1997 : Cieszyn, Poland), a cura di. Biomarkers: A pragmatic basis for remediation of severe pollution in Eastern Europe. Dordrecht: Kluwer Academic Publishers, 1999.

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Ackermann, Werner. Indikatoren zur biologischen Vielfalt: Entwicklung und Bilanzierung. Bonn-Bad Godesberg: Bundesamt für Naturschutz, 2013.

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Capitoli di libri sul tema "Indicators (biology)"

Thompson, Richard B., e Hui Hui Zeng. "Indicators for Ionic Copper in Biology". In Reviews in Fluorescence 2015, 147–69. Cham: Springer International Publishing, 2015. http://dx.doi.org/10.1007/978-3-319-24609-3_6.

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Katunzi, E. F. B., Yunus D. Mgaya, O. C. Mkumbo e S. M. Limbu. "Fish Biology and Life History Indicators". In Lake Victoria Fisheries Resources, 61–79. Cham: Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-69656-0_4.

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Mollinedo-Gajate, Irene, Chenchen Song e Thomas Knöpfel. "Genetically Encoded Voltage Indicators". In Advances in Experimental Medicine and Biology, 209–24. Singapore: Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-15-8763-4_12.

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Sirgy, M. Joseph. "Effects of Biology, Drugs, Life Events, and the Environment on Wellbeing". In Social Indicators Research Series, 175–204. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-71888-6_8.

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Gupta, Manju M. "Arbuscular Mycorrhizal Fungi: The Potential Soil Health Indicators". In Soil Biology, 183–95. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-44364-1_11.

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Sirgy, M. Joseph. "Effects of Genetics, Health, Biology, the Environment, and Drugs on Subjective QOL". In Social Indicators Research Series, 123–38. Dordrecht: Springer Netherlands, 2012. http://dx.doi.org/10.1007/978-94-007-4405-9_8.

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Sluys, Ronald. "Platyhelminths as paleogeographical indicators". In Biology of Turbellaria and some Related Flatworms, 49–53. Dordrecht: Springer Netherlands, 1995. http://dx.doi.org/10.1007/978-94-011-0045-8_9.

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Egorov, Andrey I., Dafina Dalbokova e Michal Krzyzanowski. "Biomonitoring-based Environmental Public Health Indicators". In Methods in Molecular Biology, 275–93. Totowa, NJ: Humana Press, 2012. http://dx.doi.org/10.1007/978-1-62703-059-5_12.

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Harikumar, Kaleeckal G., e Laurence J. Miller. "Use of Fluorescence Indicators in Receptor Ligands". In Methods in Molecular Biology, 279–91. Totowa, NJ: Humana Press, 2009. http://dx.doi.org/10.1007/978-1-60327-317-6_20.

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Harikumar, Kaleeckal G., e Laurence J. Miller. "Use of Fluorescence Indicators in Receptor Ligands". In Methods in Molecular Biology, 115–30. New York, NY: Springer New York, 2015. http://dx.doi.org/10.1007/978-1-4939-2914-6_9.

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Atti di convegni sul tema "Indicators (biology)"

Aszalós, Réka, Zoltan Elek, Tamás Frank, Krisztián Harmos e Szabolcs Csermák. "Woodpeckers as early indicators of forest naturalness". In 5th European Congress of Conservation Biology. Jyväskylä: Jyvaskyla University Open Science Centre, 2018. http://dx.doi.org/10.17011/conference/eccb2018/107770.

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Hrynaszkiewicz, Iain, Beruria Novich, James Harney e Veronique Kiermer. "A survey of how biology researchers assess credibility when serving on grant and hiring committees". In 27th International Conference on Science, Technology and Innovation Indicators (STI 2023). International Conference on Science, Technology and Innovation Indicators, 2023. http://dx.doi.org/10.55835/642ee2edfab37d565e6081a9.

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We surveyed 485 biology researchers who have served on committees for grant review or hiring and promotion decisions, to understand how they assess the credibility of research outputs in these contexts. We found that assessment of credibility is very important to researchers serving in these committees but researchers are dissatisfied with their ability to judge credibility and often use inappropriate proxies, such as journal reputation and impact factor, to do this. Non-traditional research outputs associated with Open Science practices are particularly hard to assess, despite their potential to signal and support credibility assessments. Current policy may be overly focused on assessment of impact, and there are opportunities to provide better solutions to enable researchers to judge the credibility of research.

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Larkin, K. E., K. E. Larkin, K. E. Larkin, K. E. Larkin, K. E. Larkin, K. E. Larkin, K. E. Larkin et al. "Benthic Biology Time-Series in the Deep Sea: Indicators of Change". In OceanObs'09: Sustained Ocean Observations and Information for Society. European Space Agency, 2010. http://dx.doi.org/10.5270/oceanobs09.cwp.52.

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Rowland, Jessica, David Keith e Emily Nicholson. "Using the IUCN Red List of Ecosystems to develop biodiversity indicators". In 5th European Congress of Conservation Biology. Jyväskylä: Jyvaskyla University Open Science Centre, 2018. http://dx.doi.org/10.17011/conference/eccb2018/107926.

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White, Margaret. "Chlorophyll concentration and carbon assimilation rate are sensitive indicators of nasilver toxicity in Arabidopsis thaliana". In ASPB PLANT BIOLOGY 2020. USA: ASPB, 2020. http://dx.doi.org/10.46678/pb.20.1053048.

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Bonasera, Aldo, Maide Bucolo, Riccardo Caponetto, Luigi Fortuna, Francesca Sapuppo e Maria C. Virzi. "Mapping Heart Dynamics by using Nonlinear Indicators". In 2007 29th Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE, 2007. http://dx.doi.org/10.1109/iembs.2007.4353703.

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Szymula, Lukasz, e Tereza Simova. "A Large Scale Perspective on Open Access Publishing: Examining Gender and Scientific Disciplines in 38 OECD countries". In 27th International Conference on Science, Technology and Innovation Indicators (STI 2023). International Conference on Science, Technology and Innovation Indicators, 2023. http://dx.doi.org/10.55835/6442b2f80dd9c5d18e7caff8.

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Gender inequality is a persistent issue in scientific publishing, but recent studies suggest that Open Access (OA) publishing can increase the visibility and impact of female scientists' research. To provide a comprehensive, large-scale view of OA publishing considering gender and individual scientific disciplines, we analyzed a dataset of OpenAlex. Our final sample contained over 20 millions publications, including closed OA status publications, and over 8 millions publications, excluding closed OA status publications. Using the Genderize.io tool, we determined the gender of the authors. Results showed that female scientists publish more in OA mode, especially in Gold OA. Male scientists, on the other hand, tend to use Green OA. Our results also revealed a decreasing trend of Bronze OA and a growing trend of Gold and Hybrid OA. Biology, Physics, and Mathematics have the largest share of OA publications. Overall, our study provides a global perspective on gender and OA publishing and contributes to efforts to promote gender equality and inclusiveness in science and research.

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Eklund, Johanna, Lauren Coad, Jonas Geldmann e Mar Cabeza. "Protected area effectiveness and management indicators do not correlate: what are we doing wrong?" In 5th European Congress of Conservation Biology. Jyväskylä: Jyvaskyla University Open Science Centre, 2018. http://dx.doi.org/10.17011/conference/eccb2018/107332.

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Ruggiero, Dominic, Michael Grove, Courtney Richmond e Nathan Ruhl. "Ecological Thresholds and Environmental Indicators of the Density of Zooplankton Exports from a Polymictic Reservoir Series". In Rowan University Biology Student Symposium. Rowan University Libraries, 2020. http://dx.doi.org/10.31986/issn.2689-0690_rdw.buss.1003.

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AL-JANABI, Omar Falah Awad, e Ameer Mohammed Ali Rasool AL-SADI. "EVALUATION OF EDUCATIONAL TELEVISION LESSONS FOR INTERMEDIATE SCHOOL BIOLOGY ACCORDING TO PROPOSED STANDARDS". In 2. IJHER-International Congress of Humanities and Educational Research. Rimar Academy, 2021. http://dx.doi.org/10.47832/ijhercongress2-3.

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The research aimed at evaluating educational television lessons for science for the primary stage according to proposed criteria. Three main fields are (scientific and cognitive field, educational field, performance field) from which (11) criteria and (44) indicators emerge, The two researchers evaluated the educational television lessons of science for the primary stage for the academic year (2020-2021) according to these criteria and indicators, with a number of lessons that amounted to (89) lessons out of (89), and the researchers extracted the validity of the evaluation; This was done through the assistance of two experts in the field of education / methods of teaching science. The two researchers analyzed a random sample of lessons, and then presented the assessed lessons and the proposed assessment criteria and their indicators to the two experts, and they unanimously agreed on the validity of the assessment. Then, they extracted the stability of the calendar by the methods of stability over time and stability between the two evaluators using Holstey's equation. The results showed that all standards were met in the educational television lessons of science for all primary schools, and that the degree of their achievement was significant. Key words: Evaluation, Standards.

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Rapporti di organizzazioni sul tema "Indicators (biology)"

Burns, Malcom, e Gavin Nixon. Literature review on analytical methods for the detection of precision bred products. Food Standards Agency, settembre 2023. http://dx.doi.org/10.46756/sci.fsa.ney927.

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The Genetic Technology (Precision Breeding) Act (England) aims to develop a science-based process for the regulation and authorisation of precision bred organisms (PBOs). PBOs are created by genetic technologies but exhibit changes which could have occurred through traditional processes. This current review, commissioned by the Food Standards Agency (FSA), aims to clarify existing terminologies, explore viable methods for the detection, identification, and quantification of products of precision breeding techniques, address and identify potential solutions to the analytical challenges presented, and provide recommendations for working towards an infrastructure to support detection of precision bred products in the future. The review includes a summary of the terminology in relation to analytical approaches for detection of precision bred products. A harmonised set of terminology contributes towards promoting further understanding of the common terms used in genome editing. A review of the current state of the art of potential methods for the detection, identification and quantification of precision bred products in the UK, has been provided. Parallels are drawn with the evolution of synergistic analytical approaches for the detection of Genetically Modified Organisms (GMOs), where molecular biology techniques are used to detect DNA sequence changes in an organism’s genome. The scope and limitations of targeted and untargeted methods are summarised. Current scientific opinion supports that modern molecular biology techniques (i.e., quantitative real-time Polymerase Chain Reaction (qPCR), digital PCR (dPCR) and Next Generation Sequencing (NGS)) have the technical capability to detect small alterations in an organism’s genome, given specific prerequisites of a priori information on the DNA sequence of interest and of the associated flanking regions. These techniques also provide the best infra-structure for developing potential approaches for detection of PBOs. Should sufficient information be known regarding a sequence alteration and confidence can be attributed to this being specific to a PBO line, then detection, identification and quantification can potentially be achieved. Genome editing and new mutagenesis techniques are umbrella terms, incorporating a plethora of approaches with diverse modes of action and resultant mutational changes. Generalisations regarding techniques and methods for detection for all PBO products are not appropriate, and each genome edited product may have to be assessed on a case-by-case basis. The application of modern molecular biology techniques, in isolation and by targeting just a single alteration, are unlikely to provide unequivocal evidence to the source of that variation, be that as a result of precision breeding or as a result of traditional processes. In specific instances, detection and identification may be technically possible, if enough additional information is available in order to prove that a DNA sequence or sequences are unique to a specific genome edited line (e.g., following certain types of Site-Directed Nucelase-3 (SDN-3) based approaches). The scope, gaps, and limitations associated with traceability of PBO products were examined, to identify current and future challenges. Alongside these, recommendations were made to provide the infrastructure for working towards a toolkit for the design, development and implementation of analytical methods for detection of PBO products. Recognition is given that fully effective methods for PBO detection have yet to be realised, so these recommendations have been made as a tool for progressing the current state-of-the-art for research into such methods. Recommendations for the following five main challenges were identified. Firstly, PBOs submitted for authorisation should be assessed on a case-by-case basis in terms of the extent, type and number of genetic changes, to make an informed decision on the likelihood of a molecular biology method being developed for unequivocal identification of that specific PBO. The second recommendation is that a specialist review be conducted, potentially informed by UK and EU governmental departments, to monitor those PBOs destined for the authorisation process, and actively assess the extent of the genetic variability and mutations, to make an informed decision on the type and complexity of detection methods that need to be developed. This could be further informed as part of the authorisation process and augmented via a publicly available register or database. Thirdly, further specialist research and development, allied with laboratory-based evidence, is required to evaluate the potential of using a weight of evidence approach for the design and development of detection methods for PBOs. This concept centres on using other indicators, aside from the single mutation of interest, to increase the likelihood of providing a unique signature or footprint. This includes consideration of the genetic background, flanking regions, off-target mutations, potential CRISPR/Cas activity, feasibility of heritable epigenetic and epitranscriptomic changes, as well as supplementary material from supplier, origin, pedigree and other documentation. Fourthly, additional work is recommended, evaluating the extent/type/nature of the genetic changes, and assessing the feasibility of applying threshold limits associated with these genetic changes to make any distinction on how they may have occurred. Such a probabilistic approach, supported with bioinformatics, to determine the likelihood of particular changes occurring through genome editing or traditional processes, could facilitate rapid classification and pragmatic labelling of products and organisms containing specific mutations more readily. Finally, several scientific publications on detection of genome edited products have been based on theoretical principles. It is recommended to further qualify these using evidenced based practical experimental work in the laboratory environment. Additional challenges and recommendations regarding the design, development and implementation of potential detection methods were also identified. Modern molecular biology-based techniques, inclusive of qPCR, dPCR, and NGS, in combination with appropriate bioinformatics pipelines, continue to offer the best analytical potential for developing methods for detecting PBOs. dPCR and NGS may offer the best technical potential, but qPCR remains the most practicable option as it is embedded in most analytical laboratories. Traditional screening approaches, similar to those for conventional transgenic GMOs, cannot easily be used for PBOs due to the deficit in common control elements incorporated into the host genome. However, some limited screening may be appropriate for PBOs as part of a triage system, should a priori information be known regarding the sequences of interest. The current deficit of suitable methods to detect and identify PBOs precludes accurate PBO quantification. Development of suitable reference materials to aid in the traceability of PBOs remains an issue, particularly for those PBOs which house on- and off-target mutations which can segregate. Off-target mutations may provide an additional tool to augment methods for detection, but unless these exhibit complete genetic linkage to the sequence of interest, these can also segregate out in resulting generations. Further research should be conducted regarding the likelihood of multiple mutations segregating out in a PBO, to help inform the development of appropriate PBO reference materials, as well as the potential of using off-target mutations as an additional tool for PBO traceability. Whilst recognising the technical challenges of developing and maintaining pan-genomic databases, this report recommends that the UK continues to consider development of such a resource, either as a UK centric version, or ideally through engagement in parallel EU and international activities to better achieve harmonisation and shared responsibilities. Such databases would be an invaluable resource in the design of reliable detection methods, as well as for confirming that a mutation is as a result of genome editing. PBOs and their products show great potential within the agri-food sector, necessitating a science-based analytical framework to support UK legislation, business and consumers. Differentiating between PBOs generated through genome editing compared to organisms which exhibit the same mutational change through traditional processes remains analytically challenging, but a broad set of diagnostic technologies (e.g., qPCR, NGS, dPCR) coupled with pan-genomic databases and bioinformatics approaches may help contribute to filling this analytical gap, and support the safety, transparency, proportionality, traceability and consumer confidence associated with the UK food chain.

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Stone, Robert P., Stephen D. Cairns, Dennis M. Opresko, Gary C. Williams e Michele M. Masuda. A guide to the corals of Alaska. US Department of Commerce, NOAA, NMFS Scientific Publications Office, gennaio 2024. http://dx.doi.org/10.7755/pp.23.

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The Magnuson-Stevens Fishery Conservation and Management Reauthorization Act of 2006 mandat¬ed the research and management of the nation’s deep-sea coral resources through establishment of the National Oceanic and Atmospheric Administra¬tion’s Deep Sea Coral Research and Technology Program. The challenge for Alaska was daunting, where expansive, world-class fisheries often coincided with extraordinarily rich coral habitats for a high-latitude region. The first chal¬lenge was to inventory known locations of deep-sea corals. Many coral records and some museum collections existed from Alaska, but the taxonomy of cor¬als was little studied and field iden¬tification of corals was problematic. Formal bycatch programs and research activities in recent decades provided many more specimens for taxonomic study, but guides to species were largely incomplete, inaccurate, and outdated given the fast pace of species discovery in Alaska. We provide a comprehen¬sive, up-to-date guide, detailing 161 coral taxa identified from museum collections, primary literature, and video records. Each profile includes a description, images for each taxon, taxonomic history, biology, ecology, geographical distribution, and habitat, including depth distribution. Corals are found in the six regions of Alaska but the coral fauna of the Aleutian Islands is by far the most species rich. The state of taxonomy for some coral groups is ex¬cellent, while others require additional collections and more taxonomic work. Construction of this guide resulted in descriptions of several antipatharian species, published separately from this guide (Alternatipathes mirabilis, Bathypathes alaskensis, B. ptiloides, B. tiburonae, and Parantipathes pluma) and the scleractinian Flabellum (Flabel¬lum) oclairi Cairns, sp. nov. described herein. The guide provides informa¬tion for targeting new collections and identifying areas of high abundance and indicator species of vulnerable marine ecosystems. Stakeholders can now more adequately assess Alaska’s coral resources and risks from natural and anthropogenic stressors.

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Horwitz, Benjamin A., e Barbara Gillian Turgeon. Fungal Iron Acquisition, Oxidative Stress and Virulence in the Cochliobolus-maize Interaction. United States Department of Agriculture, marzo 2012. http://dx.doi.org/10.32747/2012.7709885.bard.

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Our project focused on genes for high affinity iron acquisition in Cochliobolus heterostrophus, a necrotrophic pathogen of maize, and their intertwined relationship to oxidative stress status and virulence of the fungus on the host. An intriguing question was why mutants lacking the nonribosomal peptide synthetase (NRPS) gene (NPS6) responsible for synthesis of the extracellular siderophore, coprogen, are sensitive to oxidative stress. Our overall objective was to understand the mechanistic connection between iron stress and oxidative stress as related to virulence of a plant pathogen to its host. The first objective was to examine the interface where small molecule peptide and reactive oxygen species (ROS) mechanisms overlap. The second objective was to determine if the molecular explanation for common function is common signal transduction pathways. These pathways, built around sensor kinases, response regulators, and transcription factors may link sequestering of iron, production of antioxidants, resistance to oxidative stress, and virulence. We tested these hypotheses by genetic manipulation of the pathogen, virulence assays on the host plant, and by following the expression of key fungal genes. An addition to the original program, made in the first year, was to develop, for fungi, a genetically encoded indicator of redox state based on the commercially available Gfp-based probe pHyper, designed for animal cell biology. We implemented several tools including a genetically encoded indicator of redox state, a procedure to grow iron-depleted plants, and constructed a number of new mutants in regulatory genes. Lack of the major Fe acquisition pathways results in an almost completely avirulent phenotype, showing how critical Fe acquisition is for the pathogen to cause disease. Mutants in conserved signaling pathways have normal ability to regulate NPS6 in response to Fe levels, as do mutants in Lae1 and Vel1, two master regulators of gene expression. Vel1 mutants are sensitive to oxidative stress, and the reason may be underexpression of a catalase gene. In nps6 mutants, CAT3 is also underexpressed, perhaps explaining the sensitivity to oxidative stress. We constructed a deletion mutant for the Fe sensor-regulator SreA and found that it is required for down regulation of NPS6 under Fe-replete conditions. Lack of SreA, though, did not make the fungus over-sensitive to ROS, though the mutant had a slow growth rate. This suggests that overproduction of siderophore under Fe-replete conditions is not very damaging. On the other hand, increasing Fe levels protected nps6 mutants from inhibition by ROS, implying that Fe-catalyzed Fenton reactions are not the main factor in its sensitivity to ROS. We have made some progress in understanding why siderophore mutants are sensitive to oxidative stress, and in doing so, defined some novel regulatory relationships. Catalase genes, which are not directly related to siderophore biosynthesis, are underexpressed in nps6 mutants, suggesting that the siderophore product (with or without bound Fe) may act as a signal. Siderophores, therefore, could be a target for intervention in the field, either by supplying an incorrect signal or blocking a signal normally provided during infection. We already know that nps6 mutants cause smaller lesions and have difficulty establishing invasive growth in the host. Lae1 and Vel1 are the first factors shown to regulate both super virulence conferred by T-toxin, and basic pathogenicity, due to unknown factors. The mutants are also altered in oxidative stress responses, key to success in the infection court, asexual and sexual development, essential for fungal dissemination in the field, aerial hyphal growth, and pigment biosynthesis, essential for survival in the field. Mutants in genes encoding NADPH oxidase (Nox) are compromised in development and virulence. Indeed the triple mutant, which should lack all Nox activity, was nearly avirulent. Again, gene expression experiments provided us with initial evidence that superoxide produced by the fungus may be most important as a signal. Blocking oxidant production by the pathogen may be a way to protect the plant host, in interactions with necrotrophs such as C. heterostrophus which seem to thrive in an oxidant environment.

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