Open Access. Powered by Scholars. Published by Universities.®
- Discipline
-
- Physical Sciences and Mathematics (294180)
- Education (91884)
- Engineering (80121)
- Computer Sciences (63753)
- Social and Behavioral Sciences (61071)
-
- Earth Sciences (59520)
- Environmental Sciences (52669)
- Life Sciences (52455)
- Arts and Humanities (37477)
- Physics (34204)
- Chemistry (33330)
- Geology (30001)
- Mathematics (27212)
- Higher Education (25310)
- Law (25271)
- Medicine and Health Sciences (23240)
- Science and Mathematics Education (19308)
- Business (18173)
- Electrical and Computer Engineering (18077)
- Computer Engineering (17518)
- History (15406)
- Plant Sciences (14964)
- Soil Science (14407)
- Oceanography and Atmospheric Sciences and Meteorology (14094)
- Mechanical Engineering (13114)
- Statistics and Probability (12864)
- Artificial Intelligence and Robotics (11610)
- Agronomy and Crop Sciences (11032)
- Curriculum and Instruction (10733)
- Civil and Environmental Engineering (10546)
- Institution
-
- University of Nebraska - Lincoln (32987)
- Western Michigan University (24913)
- University of Kentucky (17275)
- Missouri University of Science and Technology (13216)
- Utah State University (13048)
-
- TÜBİTAK (12093)
- University of South Florida (10793)
- University of New Mexico (10613)
- Singapore Management University (10508)
- Old Dominion University (10154)
- Louisiana State University (9864)
- California Polytechnic State University, San Luis Obispo (9534)
- University of Montana (9093)
- University of Northern Iowa (9069)
- University of Mississippi (8919)
- Purdue University (8612)
- Brigham Young University (8049)
- University of Central Florida (7697)
- Wright State University (7043)
- San Jose State University (6921)
- Portland State University (6910)
- City University of New York (CUNY) (6788)
- University of New Hampshire (6113)
- New Jersey Institute of Technology (6019)
- University of Nevada, Las Vegas (5891)
- Nova Southeastern University (5781)
- Clemson University (5674)
- Georgia Southern University (5674)
- Air Force Institute of Technology (5603)
- University of Arkansas, Fayetteville (5270)
- Keyword
-
- Newspaper (7368)
- Education (6698)
- Mathematics (5296)
- Student newspaper (3689)
- Machine learning (3292)
-
- Faculty (3187)
- Higher education (3027)
- Undergraduate (2743)
- Students (2711)
- Bowling Green State University (2659)
- History (2232)
- Spartan Daily (2144)
- Newsletter (2095)
- Engineering (2079)
- Western Australia (2054)
- Climate change (2030)
- EIU (2020)
- Physics (1948)
- Eastern Illinois University (1913)
- Student life (1908)
- Pennsylvania (1898)
- Student newspapers (1878)
- Periodicals (1841)
- Artificial intelligence (1811)
- Collegeville (1809)
- Curriculum (1798)
- Alumni (1780)
- Daily Eastern News (1780)
- Humans (1770)
- College student newspapers and periodicals (1767)
- Publication Year
-
- 2026 (17641)
- 2025 (25602)
- 2024 (27096)
- 2023 (27103)
- 2022 (31335)
-
- 2021 (42440)
- 2020 (28874)
- 2019 (26923)
- 2018 (25695)
- 2017 (24627)
- 2016 (24400)
- 2015 (22282)
- 2014 (21845)
- 2013 (20123)
- 2012 (19386)
- 2011 (17325)
- 2010 (16055)
- 2009 (14015)
- 2008 (13194)
- 2007 (12504)
- 2006 (11384)
- 2005 (10399)
- 2004 (9508)
- 2003 (8201)
- 2002 (7574)
- 2001 (6954)
- 2000 (6606)
- 1999 (6125)
- 1998 (6046)
- 1997 (5736)
- Publication
-
- Theses and Dissertations (22413)
- Legacy Scout Tickets from Pure Oil Company (11044)
- Electronic Theses and Dissertations (9774)
- IGC Proceedings (1977-2023) (9261)
- Faculty Publications (9006)
-
- Research Collection School Of Computing and Information Systems (8596)
- Dissertations (6781)
- Thin Sections (6677)
- Theses (6609)
- Masters Theses (4905)
- Journal of System Simulation (3924)
- Graduate Theses and Dissertations (3736)
- USF Tampa Graduate Theses and Dissertations (3574)
- Nebraska Tractor Tests (3402)
- Walden Dissertations and Doctoral Studies (3383)
- Master's Theses (3189)
- Turkish Journal of Electrical Engineering and Computer Sciences (3152)
- Doctoral Dissertations (2986)
- Articles (2921)
- Graduate Theses, Dissertations, and Problem Reports (ETD) (2865)
- Turkish Journal of Chemistry (2816)
- Chulalongkorn University Theses and Dissertations (Chula ETD) (2807)
- Turkish Journal of Mathematics (2781)
- All Graduate Theses and Dissertations, Spring 1920 to Summer 2023 (2668)
- Neutrosophic Sets and Systems (2563)
- Commencement Programs (2407)
- Publications and Research (2401)
- Journal of Electrochemistry (2393)
- Publications (2391)
- Applied Mathematics & Information Sciences (2320)
- Publication Type
Articles 89731 - 89760 of 716335
Full-Text Articles in Entire DC Network
An Analysis Of The Texts In The Life Studies Textbooks In The Context Of The United Nations Convention On The Rights Of The Child, Emrullah Akcan, Kemal Faruk Bakır
An Analysis Of The Texts In The Life Studies Textbooks In The Context Of The United Nations Convention On The Rights Of The Child, Emrullah Akcan, Kemal Faruk Bakır
Journal of Educational Research and Practice
In this research, we analyzed the life studies lesson textbooks taught in Turkey as of 2019–2020 within the scope of the United Nations Convention on the Rights of the Child (UNCRC). Considering this purpose, we conducted content analysis using the document analysis method, one of the qualitative research methods. As a result, two themes emerged from life studies textbooks (LSTs), namely “the formation of the perception of children’s rights” and “the basic rights of immigrants and children with special needs,” and we developed a total of 17 codes belonging to these themes. We found that the texts in the LSTs …
The Beacon, February 17, 2023, Beacon Staff
The Beacon, February 17, 2023, Beacon Staff
The Beacon, 2022-2023
Kugler honors father through collection of comics; NW Resident Assistants carry out Christian calling; Music industry stars shine at Grammys; Anticipated sequel grants audiences' wishes; Production illuminates historical women; Festival celebrates diversity of students' cultures; Extraterrestrial Culture Day landed on Feb.14; Preserving history through artistic comics; Christian Formation conversations over dinner; RAs appreciate relationships; You should leave the country during college; The perks of being a single Raider; NW Raider Esports gaining players and plans; Softball leaders pulling team to the front; Men's tennis swinging onto cold February courts; Transformational time at men's retreat; A battle of bands brings together …
New Nsaid Conjugates As Potent And Selective Cox-2 Inhibitors: Synthesis, Molecular Modeling And Biological Investigation, Riham M. Bokhtia, Siva S. Panda, Adel S. Girgis, Nermin Samir
New Nsaid Conjugates As Potent And Selective Cox-2 Inhibitors: Synthesis, Molecular Modeling And Biological Investigation, Riham M. Bokhtia, Siva S. Panda, Adel S. Girgis, Nermin Samir
Faculty Journal Articles
No abstract provided.
The Santa Clara, 2023-02-17, Santa Clara University
The Santa Clara, 2023-02-17, Santa Clara University
The Santa Clara
No abstract provided.
Specifications Grading: A High-Expectations, Low-Stakes Approach, Erin Micklo, Eric Rettberg
Specifications Grading: A High-Expectations, Low-Stakes Approach, Erin Micklo, Eric Rettberg
Faculty Roundtable
The specifications grading model we’ve adopted for Literary Explorations II seeks to hold students to high expectations for learning even as it reduces the stakes of any given attempt on an assignment.
A Data-Driven Optimization Method For Coarse-Graining Gene Regulatory Networks., Cristian Caranica, Mingyang Lu
A Data-Driven Optimization Method For Coarse-Graining Gene Regulatory Networks., Cristian Caranica, Mingyang Lu
Faculty Research 2023
One major challenge in systems biology is to understand how various genes in a gene regulatory network (GRN) collectively perform their functions and control network dynamics. This task becomes extremely hard to tackle in the case of large networks with hundreds of genes and edges, many of which have redundant regulatory roles and functions. The existing methods for model reduction usually require the detailed mathematical description of dynamical systems and their corresponding kinetic parameters, which are often not available. Here, we present a data-driven method for coarse-graining large GRNs, named SacoGraci, using ensemble-based mathematical modeling, dimensionality reduction, and gene circuit …
The Blueprint: #Backtoblack
Bailey School of Music Concert Programs
The Black Musicians Coalition is pleased to present The Blueprint: #BacktoBlack, an interdisciplinary Black History production about reclaiming the history, the culture, and the mediums that were already ours to begin with.
2023 Qdayton Colloquium Program, University Of Dayton
2023 Qdayton Colloquium Program, University Of Dayton
QDayton Documents
Program for the 2nd annual QDayton Colloquium, Feb. 17, 2023
Fort Hays State University Tiger Weekly, February 17, 2023, University Relations
Fort Hays State University Tiger Weekly, February 17, 2023, University Relations
Tiger Weekly Newsletters
No abstract provided.
Developing Methods For Measuring In Vivo Lipid Metabolism, Russell L. Denton
Developing Methods For Measuring In Vivo Lipid Metabolism, Russell L. Denton
Theses and Dissertations
Lipid metabolism is critically important to the normal function of individual cells and for signaling between tissues of the human body. There is a great need to quantify changes in lipid metabolism because of its implications in both normal healthy conditions and during disease development. In our first study, we developed a liquid chromatography mass spectrometry based workflow to assess in vivo metabolism of murine brain lipids. This involved sample preparation, data acquisition, and analysis software development and improvements. Regarding sample preparation, we maintained the mice at 5% body water for the duration of the experiment. As mouse metabolism proceeds, …
A Collection Of Calculus Lesson Plans: Deriving The 'Why' Behind Derivatives, Kasey Brabec
A Collection Of Calculus Lesson Plans: Deriving The 'Why' Behind Derivatives, Kasey Brabec
Honors Program: Senior Projects (Public)
The traditional mathematics classroom is led with a focus on procedural understanding, with deep conceptual understanding considered to be unimportant or too difficult to teach within the allotted time. Both levels of understanding are important mathematical competencies, as it is rare for either of them to function well without accessibility to the other. The disparity between conceptual understanding and procedural understanding in the mathematics classroom is no larger than in courses like Calculus. This project is a collection of fifteen lesson plans constructed with an emphasis on conceptual understanding and the connectivity of Calculus. Each lesson plan’s overview contains the …
Board Of Trustees Agenda, Feb. 17 2023, Indiana State University Board Of Trustees
Board Of Trustees Agenda, Feb. 17 2023, Indiana State University Board Of Trustees
Board of Trustees
No abstract provided.
Azimuthal Correlations In Z +Jets Events In Proton–Proton Collisions At √S = 13tev, Cms Collaboration
Azimuthal Correlations In Z +Jets Events In Proton–Proton Collisions At √S = 13tev, Cms Collaboration
Department of Physics and Astronomy: Faculty Publications
The production of Z bosons associated with jets is measured in pp collisions at √ s = 13 TeV with data recorded with the CMS experiment at the LHC corresponding to an integrated luminosity of 36.3 fb−1. The multiplicity of jets with transverse momentum pT > 30 GeV is measured for different regions of the Z boson’s pT(Z ), from lower than 10 GeV to higher than 100 GeV. The azimuthal correlation Δφ between the Z boson and the leading jet, as well as the correlations between the two leading jets are measured in three regions …
The Use Of Characteristics And Indicators Of Body Construction As Predictors In The Identification Of The Angle Values Of The Physiological Curves Of The Spine In Sequential Objective Testing - Mathematical Models, Jacek Tuz, Adam Maszczyk, Anna Zwierzchowska
The Use Of Characteristics And Indicators Of Body Construction As Predictors In The Identification Of The Angle Values Of The Physiological Curves Of The Spine In Sequential Objective Testing - Mathematical Models, Jacek Tuz, Adam Maszczyk, Anna Zwierzchowska
Baltic Journal of Health and Physical Activity
Introduction: The physiological curvatures of the spine in the sagittal plane are constantly evolving along with changes in the structure and proportions of the body and physical activity. The aim of this study is to identify and assess the strength of the influence of body features and indices on the values of lumbar lordosis and thoracic kyphosis angles with the use of a mathematical model. In the years 2006–2016, 1,314 female students aged ( ± SD 19.7 ± 0.4) (min.–max. 18.1–22.5) were examined.
Materials and Methods. The following measurements were made: body mass (BM), body height (BH), waist circumference (WC), …
Rediscovering The Artistic Side Of Mathematics, Bogdan G. Nita, Ashwin Vaidya
Rediscovering The Artistic Side Of Mathematics, Bogdan G. Nita, Ashwin Vaidya
LASER Journal
Welcome to the inaugural issue of the LASER, a journal devoted to the problems at the interface of math and art. The terms ’math’ and ’art’ are to be broadly construed to encompass all quantitative sciences and forms of art. The journal’s name, acronym for Linking Art and Science through Education and Research, suggests our interest in the theory, practice and pedagogy of this interdisciplinary subject.
Yield And Composition Of Forage Maize: Interaction Of Harvest Date, Cultivar And Plastic Mulch, E. M. Little, P. O'Kiely, J. C. Crowley, G. P. Keane
Yield And Composition Of Forage Maize: Interaction Of Harvest Date, Cultivar And Plastic Mulch, E. M. Little, P. O'Kiely, J. C. Crowley, G. P. Keane
IGC Proceedings (1977-2023)
Forage maize is established as a crop with the potential to consistently supply high yields of quality forage on some Irish farms. Despite its success, considerable variability in crop yield, quality and maturity at harvest can exist from year to year. These reflect differing prevailing weather conditions, particularly temperature during May to September. The use of plastic mulch has increased the likelihood of achieving higher yields of high quality crops and has permitted maize production to extend into areas once considered unsuitable for the crop. In this experiment two cultivars of differing maturity were grown with or without plastic mulch …
Fermentation Characteristics Of Maize/Sesbania Bi-Crop Silage, M. Kondo, J. Yanagisawa, K. Kita, H. Yokota
Fermentation Characteristics Of Maize/Sesbania Bi-Crop Silage, M. Kondo, J. Yanagisawa, K. Kita, H. Yokota
IGC Proceedings (1977-2023)
Maize is one of the main forages for dairy production and is a suitable material for silage making because of high fermentable carbohydrates, high counts of lactic acid bacteria (LAB) and low buffering capacity (BC) (Nishino et al. 2003; McDonald et al. 1991). Whole crop maize silage is high in energy but low in crude protein (CP). On the other hand, legumes are high in CP but difficult to conserve because of their low water soluble carbohydrates (WSC) and high BC. It might be possible that maize/legume bi-crop silage compensate for their negative points. Sesbania is a legume originated …
Ensiling Of Tannin-Containing Sorghum Grain, E. M. Ott, Y. Acosta Aragón, M. Gabel
Ensiling Of Tannin-Containing Sorghum Grain, E. M. Ott, Y. Acosta Aragón, M. Gabel
IGC Proceedings (1977-2023)
Sorghum is known as important feed-stuff in tropical regions where rainfall is insufficient for the cultivation of maize. Furthermore, those sorghum cultivars rich in tannins are naturally protected to a certain extent against bird damage, insect pests and moulds. Nevertheless, tannins impair the feed quality. Thus, the objectives of this study were to investigate whether ensiling could be a suitable preservation method for sorghum grain originally rich in tannins and if it is possible to reduce tannin content during fermentation.
The Effects Of Carbohydrate Intake On Body Composition And Muscular Strength In Trained Men Undergoing A Progressive Resistance Training, Alex Silva Ribeiro, Kamila Quintilhano, Witalo Kassiano, João Pedro Nunes, Ademar Avelar, Michele C. Trindade, Andreo Aguiar, Brad Schoenfeld, Edilson Serpeloni Cyrino
The Effects Of Carbohydrate Intake On Body Composition And Muscular Strength In Trained Men Undergoing A Progressive Resistance Training, Alex Silva Ribeiro, Kamila Quintilhano, Witalo Kassiano, João Pedro Nunes, Ademar Avelar, Michele C. Trindade, Andreo Aguiar, Brad Schoenfeld, Edilson Serpeloni Cyrino
International Journal of Exercise Science
International Journal of Exercise Science 16(2): 267-280, 2023. This study's purpose was to compare the effects of different carbohydrate (CHO) intakes on body composition and muscular strength following eight weeks of resistance training (RT) in pre-conditioned men. In addition, we explored the individual responses to different CHO intakes. Twenty-nine young men volunteered to participate in this study. The participants were divided into two groups according to their relative CHO intake: lower (L-CHO; n = 14) and higher (H-CHO; n = 15). Participants performed a RT program four days a week for eight weeks. The lean soft tissue (LST) and fat …
Effects Of Varying Dietary Ratios Of Lucerne To Maize Silage On Production And Microbial Protein Synthesis In Lactating Dairy Cows, G. A. Broderick, A. F. Brito
Effects Of Varying Dietary Ratios Of Lucerne To Maize Silage On Production And Microbial Protein Synthesis In Lactating Dairy Cows, G. A. Broderick, A. F. Brito
IGC Proceedings (1977-2023)
Lucerne silage (LS) is high in total CP and rumen degraded protein (RDP) but low in fermentable energy, while maize silage (MS) is a good source of fermentable energy but low in RDP. Thus, these silages are complementary and feeding them at optimum ratio should increase nutrient efficiency in lactating cows. Dhiman & Satter (1997) observed greater milk yield when the dietary forage was 2/3 LS and 1/3 MS. The objective of this experiment was to optimise the dietary LS:MS ratio for production, microbial protein and N utilisation.
Sustained Aerobic Stability Of By-Products Silage Stored As A Total Mixed Ration, N. Nishino, H. Hattori, H. Wada
Sustained Aerobic Stability Of By-Products Silage Stored As A Total Mixed Ration, N. Nishino, H. Hattori, H. Wada
IGC Proceedings (1977-2023)
Ensiling a total mixed ration (TMR) has been practiced in Japan when high-moisture by-products are used as ruminant feed. Wet brewers grains (BG) are a common feed resource and approximately one million t are produced annually. Nishino et al. (2003; 2004) reported that, although silage would easily deteriorate in the presence of air when wet BG were ensiled alone, the spoilage could be avoided when stored as a TMR. Interestingly, the resistance to deterioration was consistently found whether high (> 106 cfu/g) or no (/g) yeasts were detected at unloading. In this study, changes during ensilage and after exposure …
Effect Of Variety And Species On The Chemical Composition Of Lotus When Ensiled, C. L. Marley, R. Fychan, R. Jones
Effect Of Variety And Species On The Chemical Composition Of Lotus When Ensiled, C. L. Marley, R. Fychan, R. Jones
IGC Proceedings (1977-2023)
Research has shown that there are positive benefits from using Lotus as a grazing forage for ruminants. These findings warrant studies into the suitability of different varieties for silage production. In this experiment, we investigated the chemical composition of 13 birdsfoot trefoil varieties and 1 greater birdsfoot trefoil when ensiled.
Cob Development In Forage Maize: Influence Of Harvest Date, Cultivar And Plastic Mulch, E. M. Little, P. O'Kiely, J. C. Crowley, G. P. Keane
Cob Development In Forage Maize: Influence Of Harvest Date, Cultivar And Plastic Mulch, E. M. Little, P. O'Kiely, J. C. Crowley, G. P. Keane
IGC Proceedings (1977-2023)
Forage maize grown for silage tends to be a compromise between reproductive and vegetative yield, and the cob component is the main driver of feeding value (Keane et al., 2003). Thus the aim is to produce a well-developed crop of high dry matter (DM) and starch content reflecting large cobs of well-filled grains rather than crops with low DM and starch contents reflecting poorly developed (immature) cob components at harvest. The use of plastic mulch can increase total DM yields with the increase in cob yield accounting for 75% of the total yield increase (Easson & Fearnehough, 1997). In …
The Influence Of Crop Maturity And Type Of Baler On Whole Crop Barley Silage Production, P. Lingvall, M. Knicky, B. Frank, B. Rustas, J. Wallsten
The Influence Of Crop Maturity And Type Of Baler On Whole Crop Barley Silage Production, P. Lingvall, M. Knicky, B. Frank, B. Rustas, J. Wallsten
IGC Proceedings (1977-2023)
Bale ensiling is based on long cut forages. Earlier studies (Honig, 1984; 1987) have shown the importance of laceration and high density in preventing fungi growth and storage instability. On the other hand use of an efficient baling technology reduces the time between moving and wrapping of bale to less than 10 minutes with a combi-baler compared to two hours with a separate wrapper. Even during feeding late fermentation is restricted as the bale is fed within some hours after opening. Ensiling of whole crop cereals needs the addition of silage additives to avoid clostridial fermentation (Weissbach et al., …
Ndf Digestion In Dairy Cows Fed Grass Or Red Clover Silages Cut At Two Stages Of Growth, K. Kuoppala, S. Ahvenjärvi, M. Rinne, A. Vanhatalo
Ndf Digestion In Dairy Cows Fed Grass Or Red Clover Silages Cut At Two Stages Of Growth, K. Kuoppala, S. Ahvenjärvi, M. Rinne, A. Vanhatalo
IGC Proceedings (1977-2023)
Increasing demand for organic dairy products has encouraged research on red clover, as it is an important plant species in organic farming systems. The objective of this experiment was to investigate the effects of plant species and growth stage on NDF digestion in dairy cows.
Effect Of Stage Of Maturity On The Nutrient Content Of Alfalfa, Y. Tyrolova, A. Vyborna
Effect Of Stage Of Maturity On The Nutrient Content Of Alfalfa, Y. Tyrolova, A. Vyborna
IGC Proceedings (1977-2023)
Alfalfa (Medicago sativa), one of the major agricultural crops in the Czech Republic, is grown on 15.8% of the arable land. Alfalfa silage forms a substantial part of diets for farm animals. It is very important to choose a suitable term of harvesting for ensilage from the view of optimal nutrient content. The stage of maturity at cutting has large effects on each component, except crude protein (Yu et al., 2004). Alfalfa can be difficult to ensile due to a high buffering capacity and a low WSC content.
Parameters Of Ensiled Maize With Biological And Chemical Additives, J. Grajewski, A. Potkański, K. Raczkowska-Werwińska, M. Twarużek, B. Miklaszewska
Parameters Of Ensiled Maize With Biological And Chemical Additives, J. Grajewski, A. Potkański, K. Raczkowska-Werwińska, M. Twarużek, B. Miklaszewska
IGC Proceedings (1977-2023)
The amount of maize grown in Poland has increased rapidly. Nowadays it takes about 600,000 ha, 40% of which is used as silage. Changing climate in Poland, with dry summer followed by wet autumn with ground frost causes extensive moulds contamination and high presence of the fusarium toxins in the maize during the harvest. The norms accepted in the EU concerning the acceptable level of deoxynivalenol (DON) and zearalenol (ZON) in feedstuffs for cattle require detailed examination of this problem as it decides on the health quality and production results. The aim of the study was to evaluate the effects …
A Phenomenological Study On The Informal Learning Experiences Of Female Mid-Level Administrators, Kathryn L. Curameng
A Phenomenological Study On The Informal Learning Experiences Of Female Mid-Level Administrators, Kathryn L. Curameng
Dissertations
Purpose: The purpose of this phenomenological study is to identify and describe the informal leadership development experiences of female mid-level administrators in private nonprofit higher education.
Methodology: This phenomenological study identifies and describes the informal leadership development experiences of female mid-level administrators in private nonprofit higher education institutions in California. Respondents were selected based on specific criteria and recommendations of a sponsor. The researcher collected data through semi-structured interviews and observations of participants.
Findings: Examination of the qualitative data from interviews with 16 female mid-level administrators working in private nonprofit higher education yielded nine major findings. These included 2 unexpected …
Gloria - A Globally Representative Hyperspectral In Situ Dataset For Optical Sensing Of Water Quality, Moritz K. Lehmann
Gloria - A Globally Representative Hyperspectral In Situ Dataset For Optical Sensing Of Water Quality, Moritz K. Lehmann
School of Natural Resources: Faculty Publications
The development of algorithms for remote sensing of water quality (RSWQ) requires a large amount of in situ data to account for the bio-geo-optical diversity of inland and coastal waters. The GLObal Reflectance community dataset for Imaging and optical sensing of Aquatic environments (GLORIA) includes 7,572 curated hyperspectral remote sensing reflectance measurements at 1nm intervals within the 350 to 900nm wavelength range. In addition, at least one co-located water quality measurement of chlorophyll α, total suspended solids, absorption by dissolved substances, and Secchi depth, is provided. The data were contributed by researchers affiliated with 59 institutions worldwide and come from …