Social construction

https://www.ester.ee/record=b5448948*es

PERAN GURU AGAMA ISLAM DALAM MENGATASI KESULITAN SISWA MEMBACA AL-QUR’AN PADA MATA PELAJARAN AL-QUR’AN HADITS DI SEKOLAH MENENGAH ATAS ISLAM NUSANTARA

This research aims to describe the role of Islamic religious teachers in overcoming the difficulties of students reading the Qur'an about the subjects of the Al-Qur'an Hadith at SMA Islam Nusantara. This research uses a qualitative research approach. Data collection techniques using observation techniques, interview techniques, and documentation techniques. The results of this study indicate how difficult it is for students to read the Koran and the role of Islamic religious teachers in overcoming the difficulties of students reading the Koran on the subject of Al-Qur'an Hadith

Diversity and temperature indirectly reduce CO2 concentrations in experimental freshwater communities.

Biodiversity loss and climate warming are occurring in concert, with potentially profound impacts on ecosystem functioning. We currently know very little about the combined effects of these changes on the links between the community structure, dynamics and the resulting in situ CO2 concentrations in freshwater ecosystems. Here we aimed to determine both individual and combined effects of temperature and non-resource diversity (species inedible for a given consumer) on CO2 concentration. Our analysis further aimed to establish both direct effects on CO2 concentrations and potential indirect effects that occur via changes to the phytoplankton and zooplankton biomasses. Our results showed that there were no interactive effects of changes in temperature and diversity on CO2 concentration in the water. Instead, independent increases in either temperature or non-resource diversity resulted in a substantial reduction in CO2 concentrations, particularly at the highest non-resource diversity. The effects of non-resource diversity and warming on CO2 were indirect, resulting largely from the positive impacts on total biomass of primary producers. Our study is the first to experimentally partition the impacts of temperature and diversity on the consumer-resource dynamics and associated changes to CO2 concentrations. It provides new mechanistic insights into the role of diverse plankton communities for ecosystem functioning and their importance in regulating CO2 dynamics under ongoing climate warming

Evolution of competitive ability for essential resources

Competition for limiting resources is among the most fundamental ecological interactions and has long been considered a key driver of species coexistence and biodiversity. Species’ minimum resource requirements, their R*, are key traits that link individual physiological demands to the outcome of competition. However, a major question remains unanswered -- to what extent are species’ competitive traits able to evolve in response to resource limitation? To address this knowledge gap, we performed an evolution experiment in which we exposed Chlamydomonas reinhardtii for approximately 285 generations to seven environments in chemostats which differed in resource supply ratios (including nitrogen, phosphorus and light limitation) and salt stress. We then grew the ancestors and descendants in common garden experiments and quantified their competitive abilities for essential resources. We investigated constraints on trait evolution by testing whether changes in resource requirements for different resources were correlated. Competitive abilities for phosphorus improved in all populations, while competitive abilities for nitrogen and light increased in some populations and decreased in others. In contrast to the common assumption that there are trade-offs between competitive abilities for different resources, we found that improvements in competitive ability for a resource came at no detectable cost. Instead, improvements in competitive ability for multiple resources were either positively correlated or not significantly correlated. Using resource competition theory, we then demonstrated that rapid adaptation in competitive traits altered the predicted outcomes of competition. These results highlight the need to incorporate contemporary evolutionary change into predictions of competitive community dynamics over environmental gradients

Temperature-dependence of minimum resource requirements alters competitive hierarchies in phytoplankton

Resource competition theory is a conceptual framework that provides mechanistic insights into competition and community assembly of species with different resource requirements. However, there has been little exploration of how resource requirements depend on other environmental factors, including temperature. Changes in resource requirements as influenced by environmental temperature would imply that climate warming can alter the outcomes of competition and community assembly

Prevalence of obesity and screening for diabetes among secondary school students

Introduction There is an increasing trend of obesity in children and adolescent globally. The objectives of this study were to identify the prevalence of overweight and obesity among students from secondary schools and to determine the mean random blood sugar (RBS) for the overweight and obese students. Methods This was a cross sectional study. Two secondary schools that were scheduled for visit by the School Health Team, Taiping in July 2016 were included. A standardized data collection sheet was used to collect the data. Overweight and obesity were defined based on WHO 2007 reference for BMI-for-age criteria. Random blood glucose was checked for overweight and obese students. Results A total of 184 school students consented and participated. 128 (69.6%) were female and 90 (48.9%) were Malays. The mean weight and height were 56.21 kg and 1.61 m respectively with BMI of 21.49 kg/m2. Overall, the prevalence of obese and overweight were 12.5% and 10.9% respectively. Among the 4 BMI groups, there were no significant difference found in sex (p=0.849) and races (p=0.536). However, there was significant difference (p=0.042) in mean RBS for obese and overweight students between races. RBS readings among overweight and obese students were within normal range with mean of 5.95 (0.67) mmol/l (range between 4.60 – 7.70 mmol/l). Conclusions The overall prevalence of overweight and obesity were comparable with other studies done in Malaysia. Nevertheless, there was no prevalence of Type II diabetes mellitus among them

Experimental evidence that evolutionary relatedness does not affect the ecological mechanisms of coexistence in freshwater green algae

The coexistence of competing species depends on the balance between their fitness differences, which determine their competitive inequalities, and their niche differences, which stabilise their competitive interactions. Darwin proposed that evolution causes species' niches to diverge, but the influence of evolution on relative fitness differences, and the importance of both niche and fitness differences in determining coexistence have not yet been studied together. We tested whether the phylogenetic distances between species of green freshwater algae determined their abilities to coexist in a microcosm experiment. We found that niche differences were more important in explaining coexistence than relative fitness differences, and that phylogenetic distance had no effect on either coexistence or on the sizes of niche and fitness differences. These results were corroborated by an analysis of the frequency of the co‐occurrence of 325 pairwise combinations of algal taxa in > 1100 lakes across North America. Phylogenetic distance may not explain the coexistence of freshwater green algae.Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/100307/1/ele12182.pd

Environmentally independent selection for hybrids between divergent freshwater stickleback lineages in semi-natural ponds.

Hybridization following secondary contact of genetically divergent populations can influence the range expansion of invasive species, though specific outcomes depend on the environmental dependence of hybrid fitness. Here, using two genetically and ecologically divergent threespine stickleback lineages that differ in their history of freshwater colonization, we estimate fitness variation of parental lineages and hybrids in semi-natural freshwater ponds with contrasting histories of nutrient loading. In our experiment, we found that fish from the older freshwater lineage (Lake Geneva) and hybrids outperformed fish from the younger freshwater lineage (Lake Constance) in terms of both growth and survival, regardless of the environmental context of our ponds. Across all ponds, hybrids exhibited the highest survival. Although wild-caught adult populations differed in their functional and defence morphology, it is unclear which of these traits underlie the fitness differences observed among juveniles in our experiment. Overall, our work suggests that when hybrid fitness is insensitive to environmental conditions, as observed here, introgression may promote population expansion into unoccupied habitats and accelerate invasion success

Readability of internet based patient information for Radiotherapy Patients

Information is key to patient informed choice and the internet is currently a major source of health information for adults in the UK. In order for the users to make use of the information it must be presented in a way that the user can understand. This depends on a number of factors one being that the document is written at the right level to be understood by the reader, readability. The aim of this study was to assess the readability of radiotherapy-related documents on the internet and compare their levels to published norms. An internet search was undertaken using Google, to identify UK-based literature. Once identified documents were downloaded into Word and cleaned of punctuation other than that at the end of the sentence, documents were then analysed by the software package Readability Studio. Documents tended to be written at too high a reading level, but the reading level had improved from a similar study conducted in 2006. The level of readability appears to show a relationship to the use of passive voice, which was very variable in the sample collected and reduction in the use of passive voice could help with the readability of the information