scholarly journals Verrucomicrobia are prevalent in north-temperate freshwater lakes and display class-level preferences between lake habitats

PLoS ONE ◽  
2018 ◽  
Vol 13 (3) ◽  
pp. e0195112 ◽  
Author(s):  
Edna Chiang ◽  
Marian L. Schmidt ◽  
Michelle A. Berry ◽  
Bopaiah A. Biddanda ◽  
Ashley Burtner ◽  
...  
Keyword(s):  
Freshwater Lakes ◽  
Class Level ◽  
Lake Habitats

scholarly journals Correction: Verrucomicrobia are prevalent in north-temperate freshwater lakes and display class-level preferences between lake habitats

PLoS ONE ◽  
2018 ◽  
Vol 13 (10) ◽  
pp. e0206396 ◽  
Author(s):  
Edna Chiang ◽  
Marian L. Schmidt ◽  
Michelle A. Berry ◽  
Bopaiah A. Biddanda ◽  
Ashley Burtner ◽  
...  
Keyword(s):  
Freshwater Lakes ◽  
Class Level ◽  
Lake Habitats

Study regarding the bio-motor level and health of children from gymnasium level

2020 ◽  
pp. 1-9
Author(s):  
Dan Alexandru Szabo
Keyword(s):  
Body Mass Index ◽  
Body Mass ◽  
Anthropometric Measurements ◽  
Average Height ◽  
Mathematical Methods ◽  
Health Development ◽  
Health Level ◽  
Class Level ◽  
Flat Feet ◽  
Weight Problems

The investigation started from the need to find the level of bio-motor and health development in our Gymnasium School “Unirea” from Târgu Mureş. The research was also focused on discovering the children with BMI problems and finding the link between obesity and apparition of flat feet, spin and knee deficiencies. The methods of research were mainly experimental, we used anthropometric measurements of height, weight, body mass index and analyzed the parameters using statically and mathematical methods. The location of the study was the gymnasium level of the National College “Unirea” from Târgu Mureş, and involved 16 selected children with an average age 12.69 years old, 4 children with weight problems selected from every class level. The results of the investigation showed that the average height of the sample was 162.7 cm, weight 71 kg and a BMI average of 26.6. The BMI analyzed showed that obesity is an important factor in the apparition of other deficiencies, among students that were measured we also found 5 cases of kyphosis, 5 of scoliosis and 6 cases of flat feet. Conclusions of the investigation showed that BMI in youth is an important parameter in establishing the health level of children from gymnasium level and in preventing the apparition of the spine and feet deficiencies.

MICROSTRUCTURE OF MAGNESIUM-BEARING CARBONATES PRECIPITATING FROM SHALLOW FRESHWATER LAKES

2019 ◽  
Author(s):  
Mihály Pósfai ◽  
◽  
Zsombor Molnár ◽  
Péter Pekker ◽  
István Dódony ◽  
...  
Keyword(s):  
Freshwater Lakes

scholarly journals Collection of Environmental Variables and Bacterial Community Compositions in Marian Cove, Antarctica, during Summer 2018

Data ◽  
2021 ◽  
Vol 6 (3) ◽  
pp. 27
Author(s):  
Hyo-Ryeon Kim ◽  
Jae-Hyun Lim ◽  
Ju-Hyoung Kim ◽  
Il-Nam Kim
Keyword(s):  
Bacterial Community ◽  
Community Composition ◽  
Marine Bacteria ◽  
Environmental Variables ◽  
Environmental Changes ◽  
Bacterial Community Composition ◽  
Composition Data ◽  
Decomposition Of Organic Matter ◽  
Class Level ◽  
Earth’S Climate

Marine bacteria, which are known as key drivers for marine biogeochemical cycles and Earth’s climate system, are mainly responsible for the decomposition of organic matter and production of climate-relevant gases (i.e., CO₂, N₂O, and CH₄). However, research is still required to fully understand the correlation between environmental variables and bacteria community composition. Marine bacteria living in the Marian Cove, where the inflow of freshwater has been rapidly increasing due to substantial glacial retreat, must be undergoing significant environmental changes. During the summer of 2018, we conducted a hydrographic survey to collect environmental variables and bacterial community composition data at three different layers (i.e., the seawater surface, middle, and bottom layers) from 15 stations. Of all the bacterial data, 17 different phylum level bacteria and 21 different class level bacteria were found and Proteobacteria occupy 50.3% at phylum level following Bacteroidetes. Gammaproteobacteria and Alphaproteobacteria, which belong to Proteobacteria, are the highest proportion at the class level. Gammaproteobacteria showed the highest relative abundance in all three seawater layers. The collection of environmental variables and bacterial composition data contributes to improving our understanding of the significant relationships between marine Antarctic regions and marine bacteria that lives in the Antarctic.

scholarly journals Dealing with Student Errors in Whole-Class Discussions of Biology Lessons at German Secondary Schools

2021 ◽  
Author(s):  
Lena von Kotzebue ◽  
Christian Förtsch ◽  
Sonja Förtsch ◽  
Birgit J. Neuhaus
Keyword(s):  
Student Achievement ◽  
Secondary Schools ◽  
Central Feature ◽  
Quality Teachers ◽  
Cross Sectional ◽  
Class Level ◽  
Biology Instruction ◽  
Student Errors ◽  
Cross Sectional Design ◽  
Positive Effect

AbstractDealing with student errors is a central feature of instructional quality. Teachers’ reactions to a student’s error and classmates’ errors can be crucial to the success of a lesson. A teacher should respond appropriately in terms of motivational and learning-related issues so that the error can become a learning opportunity for students. Currently, error situations have rarely been directly recorded and explored in empirical zstudies. This gap is the central focus of the current study in which we investigated errors in biology instruction within a cross-sectional design where biology lessons in German secondary schools were videotaped, teachers’ dealings with errors analyzed, and student achievement documented with pretests and posttests. The study found that constructively dealing with student errors had a significant positive effect on student achievement at the class level. Results confirmed the relevance of teachers’ appropriate dealing with student errors on learning in biology instruction.

Sexual harassment and psychological complaints: student- and class-level associations

2020 ◽  
Vol 30 (Supplement_5) ◽  
Author(s):  
S Brolin Låftman ◽  
Y Bjereld ◽  
B Modin ◽  
P Löfstedt
Keyword(s):  
School Climate ◽  
Sexual Harassment ◽  
Linear Regression Analysis ◽  
Well Being ◽  
Negative Effects ◽  
School Class ◽  
School Aged Children ◽  
The Past ◽  
Class Level ◽  
Using Data

Abstract Background Students who are subjected to sexual harassment at school report lower psychological well-being than those who are not exposed. Yet, it is possible that the occurrence of sexual harassment in the school class is stressful also for those who are not directly targeted, with potential negative effects on well-being for all students. The aim was to examine whether sexual harassment at the student- and at the class-level was associated with students' psychological complaints. Methods Data from the Swedish Health Behaviour in School-aged Children (HBSC) of 2017/18 was used, with information from students aged 11, 13 and 15 years (n = 3,720 distributed across 209 classes). Psychological complaints were constructed as a summative index of four items capturing how often the student had felt low, felt irritable or bad tempered, felt nervous, or had difficulties to fall asleep, during the past six months (Cronbach's alpha=0.78). Sexual harassment at the student-level was measured by one item concerning bullying at school: “Other students have exposed me to sexual jokes”. Students who reported that this had happened at least “2 or 3 times a month” were classified as exposed to sexual harassment at school. Sexual harassment at the class-level was defined as the school class proportion of students exposed to sexual harassment, reported in per cent. Two-level linear regression analysis was applied. Results Students who had been exposed to sexual harassment had higher levels of psychological complaints (b = 2.74, p < 0.001). The proportion of students in the school class who had been exposed to sexual harassment was also associated with higher levels of psychological complaints, even when adjusting for sexual harassment at the student-level, gender and grade (b = 0.03, p = 0.015). Conclusions Sexual harassment is harmful for those who are exposed, but may also affect other students negatively. Thus, a school climate free from sexual harassment will profit all students. Key messages Using data collected among students aged 11, 13 and 15 years, this study showed that sexual harassment at the student- and class-level was associated with higher levels of psychological complaints. Sexual harassment is harmful for those who are exposed, but may also affect other students negatively. Thus, a school climate free from sexual harassment will profit all students.

Challenge or chance? Understanding the impact of anti-corruption campaign on China’s hotel industry

2021 ◽  
pp. 135481662110015
Author(s):  
Yang Yang ◽  
Caiping Wang ◽  
Honggang Xu
Keyword(s):  
Hotel Industry ◽  
Class Level ◽  
Administrative Position ◽  
Food And Beverage ◽  
Negative Effect ◽  
Local Residents ◽  
Provincial Capital ◽  
Hotel Sector ◽  
The Impact ◽  
Practical Implications

Anti-corruption has garnered increasing attention, especially in China, where President Xi launched an influential and far-reaching anti-corruption campaign in late 2012. A better understanding of the effects of anti-corruption efforts on the hotel sector can reveal insights into the development of the Chinese hotel industry. Based on the quarterly data on China’s hotel industry in 49 cities from quarter 2 of 2010 to quarter 4 of 2015, this study investigates how the anti-corruption campaign (measured by anti-corruption inspections and the number of corruption lawsuits) has influenced hotel industry demand in China. Hypotheses are developed from China’s unique cultural environment of guanxi combined with rent-seeking theory and the crowding-out principle. Empirical results confirm a significant and negative effect of the anti-corruption campaign on hotel lodging and food and beverage demand. Several factors, including a city’s administrative position as a provincial capital, hotel class, level of tourism dependence, and local residents’ entertainment expenditure, are found to moderate the effect of the anti-corruption campaign on hotels’ lodging demand significantly. Theoretical and practical implications are discussed in light of these findings.

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