1,262 research outputs found

    THE CORRELATION BETWEEN THE APPLICATION OF SQ3R TECHNIQUE IN READING COMPREHENSION WITH STUDENTS’ ACHIEVEMENT IN UNDERSTANDING NARRATIVE TEXT AT THE FIRST GRADE OF SMAIT AL MULTAZAM MANIS KIDUL KUNINGAN

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    ADE PRASETIA AGP : “The Correlation between the Application of SQ3R Technique in Reading Comprehension with Students’ Achievement in Understanding Narrative Text at the First Grade of SMAIT Al-Multazam Manis Kidul Kuningan” Many students when face books or other reading materials just start reading the first word in first sentence, first paragraph, and the first page. Immediately trace word by word, sentence by sentence. In general, students (who have never received special training) read too slow, much slower than his ability. To understand a reading text they are not enough to just read it once, but students must take strategic steps to master the reading material and remember it longer. Researcher chooses SQ3R technique to be raised in this study to know is there any positive and significant correlation between the application of SQ3R technique in reading comprehension with students’ achievement in understanding narrative text. In order to do any reading activities can be run effectively and efficiently, presumably required a specific technique. SQ3R reading technique is suggested by Francis P. Robinson in 1941. This technique is an increasingly popular technique used by people. SQ3R is a reading process that consists of five steps, Survey, Question, Read, Recite/Recall, and Review. This method is a plan consists of surveying read the contents, making questions, reading content, recalling the content of reading and reviewing the literature. The methodology of the research, the writer uses quantitative approach. The technique of collecting data used are interview, test and questionnaire, then the data collected were computed and analyzed by using formula of product moment. The data are obtained and presented by numbers and then interpreted by using statistical analysis. The analysis of the data, it is known from the result of students’ response of SQ3R technique (ΣX variable) is 2366 and the result of students’ achievement in understanding narrative text (ΣY variable) is 2400. From the calculation of data above, it is known rxy is 0.62 it shows positive and significant correlation. Value t table of product moment is 0.344 by 5% significance and t count is 5.76. So t count is bigger than t table (5.76>0.344). Based on the data above, the writer concludes that hypothesis null (Ho) is rejected and hypothesis alternative (Ha) is accepted. It means that there is positive and significant correlation between the application of SQ3R technique in reading comprehension with students’ achievement in understanding narrative text. : “The Correlation between the Application of SQ3R Technique in Reading Comprehension with Students’ Achievement in Understanding Narrative Text at the First Grade of SMAIT Al-Multazam Manis Kidul Kuningan” Many students when face books or other reading materials just start reading the first word in first sentence, first paragraph, and the first page. Immediately trace word by word, sentence by sentence. In general, students (who have never received special training) read too slow, much slower than his ability. To understand a reading text they are not enough to just read it once, but students must take strategic steps to master the reading material and remember it longer. Researcher chooses SQ3R technique to be raised in this study to know is there any positive and significant correlation between the application of SQ3R technique in reading comprehension with students’ achievement in understanding narrative text. In order to do any reading activities can be run effectively and efficiently, presumably required a specific technique. SQ3R reading technique is suggested by Francis P. Robinson in 1941. This technique is an increasingly popular technique used by people. SQ3R is a reading process that consists of five steps, Survey, Question, Read, Recite/Recall, and Review. This method is a plan consists of surveying read the contents, making questions, reading content, recalling the content of reading and reviewing the literature. The methodology of the research, the writer uses quantitative approach. The technique of collecting data used are interview, test and questionnaire, then the data collected were computed and analyzed by using formula of product moment. The data are obtained and presented by numbers and then interpreted by using statistical analysis. The analysis of the data, it is known from the result of students’ response of SQ3R technique (ΣX variable) is 2366 and the result of students’ achievement in understanding narrative text (ΣY variable) is 2400. From the calculation of data above, it is known rxy is 0.62 it shows positive and significant correlation. Value t table of product moment is 0.344 by 5% significance and t count is 5.76. So t count is bigger than t table (5.76>0.344). Based on the data above, the writer concludes that hypothesis null (Ho) is rejected and hypothesis alternative (Ha) is accepted. It means that there is positive and significant correlation between the application of SQ3R technique in reading comprehension with students’ achievement in understanding narrative text

    Evolutionary relationships of East African soda lake cichlid fish

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    This thesis examines the evolutionary relationships of the Alcolapia soda lake cichlid fishes of East Africa. The introduction presents background on the soda lakes in which the cichlids are found, the taxonomy and biology of the fishes, as well as the theoretical background to the study. Chapter two discusses the methods used in the thesis, addressing the benefits and limitations of each, as well as their suitability to the study in hand. Chapter three investigates the phylogenetics and phylogeography of soda lake cichlids sampled at several populations around the soda lakes and a single transplanted population outside of the focal lakes, employing a large genomic dataset generated through restriction site associated DNA (RAD) sequencing, and demonstrates low levels of interspecific genomic differentiation with high levels of ongoing gene flow. Chapter four uses the RAD dataset to test for signals of selection between Alcolapia species, employing genome-wide scans and outlier detection to characterise peaks of genomic divergence between species. Chapter five combines morphological (geometric morphometrics) and ecological (stable isotope, stomach contents) data with the RAD dataset from chapter three to consider biologically relevant diversification between Alcolapia species, testing for convergence and niche adaptation. Chapter six examines the ecomorphology of the soda lake fishes at an intraspecific level, testing for effects of geography and environment on morphological differentiation between populations. Finally, chapter seven draws together the conclusions inferred from the thesis, and discusses possible future directions for research in this system

    Metagenomic analysis of colonic tissue and stool microbiome in patients with colorectal cancer in a South Asian population

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    Background: The gut microbiome is thought to play an important role in the development of colorectal cancer (CRC). However, as the gut microbiome varies widely based on diet, we sought to investigate the gut microbiome changes in patients with CRC in a South Asian population. Methods: The gut microbiome was assessed by 16s metagenomic sequencing targeting the V4 hypervariable region of the bacterial 16S rRNA in stool samples (n = 112) and colonic tissue (n = 36) in 112 individuals. The cohort comprised of individuals with CRC (n = 24), premalignant lesions (n = 10), healthy individuals (n = 50) and in those with diabetes (n = 28). Results: Overall, the relative abundances of genus Fusobacterium (p < 0.001), Acinetobacter (p < 0.001), Escherichia-Shigella (p < 0.05) were significantly higher in gut tissue, while Romboutsia (p < 0.01) and Prevotella (p < 0.05) were significantly higher in stool samples. Bacteroides and Fusobacterium were the most abundant genera found in stool samples in patients with CRC. Patients with pre-malignant lesions had significantly high abundances of Christensenellaceae, Enterobacteriaceae, Mollicutes and Ruminococcaceae (p < 0.001) compared to patients with CRC, and healthy individuals. Romboutsia was significantly more abundant (p < 0.01) in stool samples in healthy individuals compared to those with CRC and diabetes. Conclusion: Despite marked differences in the Sri Lankan diet compared to the typical Western diet, Bacteroides and Fusobacterium species were the most abundant in those with CRC, with Prevotella species, being most abundant in many individuals. We believe these results pave the way for possible dietary interventions for prevention of CRC in the South Asian population

    Exploring the expression of cardiac regulators in a vertebrate adapted to an extreme environment: the cichlid fish Oreochromis (Alcolapia) alcalica

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    Although it is widely accepted that the cellular and molecular mechanisms of vertebrate cardiac development are evolutionarily conserved, this is on the basis of data from only a few model organisms suited to laboratory studies. Here, we investigate gene expression during cardiac development in the extremophile, non-model fish species, Oreochromis (Alcolapia) alcalica. We first characterise the early development of O. alcalica and observe extensive vascularisation across the yolk prior to hatching. We further investigate heart development by identifying and cloning O. alcalica orthologues of conserved cardiac transcription factors gata4, tbx5, and mef2c for analysis by in situ hybridisation. Expression of these three key cardiac developmental regulators also reveals other aspects of O. alcalica development, as these genes are expressed in developing blood, limb, eyes, and muscle, as well as the heart. Our data support the notion that O. alcalica is a direct-developing vertebrate that shares the highly conserved molecular regulation of the vertebrate body plan. However, the expression of gata4 in O. alcalica reveals interesting di erences in the development of the circulatory system distinct from that of the well-studied zebrafish. Understanding the development of O. alcalica embryos is an important step towards providing a model for future research into the adaptation to extreme conditions; this is particularly relevant given that anthropogenic-driven climate change will likely result in more freshwater organisms being exposed to less favourable conditions

    From Biological Cilia to Artificial Flow Sensors: Biomimetic Soft Polymer Nanosensors with High Sensing Performance.

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    We report the development of a new class of miniature all-polymer flow sensors that closely mimic the intricate morphology of the mechanosensory ciliary bundles in biological hair cells. An artificial ciliary bundle is achieved by fabricating bundled polydimethylsiloxane (PDMS) micro-pillars with graded heights and electrospinning polyvinylidenefluoride (PVDF) piezoelectric nanofiber tip links. The piezoelectric nature of a single nanofiber tip link is confirmed by X-ray diffraction (XRD) and Fourier transform infrared spectroscopy (FTIR). Rheology and nanoindentation experiments are used to ensure that the viscous properties of the hyaluronic acid (HA)-based hydrogel are close to the biological cupula. A dome-shaped HA hydrogel cupula that encapsulates the artificial hair cell bundle is formed through precision drop-casting and swelling processes. Fluid drag force actuates the hydrogel cupula and deflects the micro-pillar bundle, stretching the nanofibers and generating electric charges. Functioning with principles analogous to the hair bundles, the sensors achieve a sensitivity and threshold detection limit of 300 mV/(m/s) and 8 μm/s, respectively. These self-powered, sensitive, flexible, biocompatibale and miniaturized sensors can find extensive applications in navigation and maneuvering of underwater robots, artificial hearing systems, biomedical and microfluidic devices

    "Particle Informatics": Advancing Our Understanding of Particle Properties through Digital Design

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    We introduce a combination of existing and novel approaches to the assessment and prediction of particle properties intrinsic to the formulation and manufacture of pharmaceuticals. Naturally following on from established solid form informatics methods, we return to the drug lamotrigine, re-evaluating its context in the Cambridge Structural Database (CSD). We then apply predictive digital design tools built around the CSD-System suite of software, including Synthonic Engineering methods that focus on intermolecular interaction energies, to analyze and understand important particle properties and their effects on several key stages of pharmaceutical manufacturing. We present a new, robust workflow that brings these approaches together to build on the knowledge gained from each step and explain how this knowledge can be combined to provide resolutions at decision points encountered during formulation design and manufacturing processes

    High levels of genetic structure and striking phenotypic variability in a sexually dimorphic suckermouth catfish from the African Highveld

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    © 2015 The Linnean Society of London. Uncovering biological diversity to more accurately understand diversity patterns, and ultimately the processes driving diversification, is important not only from an evolutionary perspective but also a conservation perspective. This is particularly pertinent in Africa's rivers in which overall diversity, as well as how it arose, is poorly understood in comparison with lacustrine environments. Here we investigate population divergence in the sexually dimorphic suckermouth catfish species Chiloglanis anoterus (Crass, 1960) from the African Highveld, in which we observe striking variability in exaggerated male caudal fins across its range. As this trait is likely to be indirect evidence for sexual selection by female choice, a mechanism that has been shown to increase species diversity in different taxa, we used an integrated approach to test if current diversity in this species is underestimated. Results based on phylogenetic inference, population genetics and geometric morphometrics indicate that the recognized species C. anoterus represents five distinct lineages that may be considered confirmed candidate species. We suggest that diversification in these highland catfish has been facilitated through geographical isolation in upper river catchments, and that sexual selection through female choice has probably driven variation in male caudal fin morphology. In contrast to the relatively large range size of the currently recognized species (C. anoterus), our findings highlight highly restricted ranges of the lineages identified here, indicating that these highland habitats may harbour higher levels of endemic diversity than previously thought

    Are medical procedures that induce coughing or involve respiratory suctioning associated with increased generation of aerosols and risk of SARS-CoV-2 infection? A rapid systematic review.

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    BACKGROUND: The risk of transmission of SARS-CoV-2 from aerosols generated by medical procedures is a cause for concern. AIM: To evaluate the evidence for aerosol production and transmission of respiratory infection associated with procedures that involve airway suctioning or induce coughing/sneezing. METHODS: The review was informed by PRISMA guidelines. Searches were conducted in PubMed for studies published between January 1st, 2003 and October 6th, 2020. Included studies examined whether nasogastric tube insertion, lung function tests, nasendoscopy, dysphagia assessment, or suctioning for airway clearance result in aerosol generation or transmission of SARS-CoV-2, SARS-CoV, MERS, or influenza. Risk of bias assessment focused on robustness of measurement, control for confounding, and applicability to clinical practice. FINDINGS: Eighteen primary studies and two systematic reviews were included. Three epidemiological studies found no association between nasogastric tube insertion and acquisition of respiratory infections. One simulation study found low/very low production of aerosols associated with pulmonary lung function tests. Seven simulation studies of endoscopic sinus surgery suggested significant increases in aerosols but findings were inconsistent; two clinical studies found airborne particles associated with the use of microdebriders/drills. Some simulation studies did not use robust measures to detect particles and are difficult to equate to clinical conditions. CONCLUSION: There was an absence of evidence to suggest that the procedures included in the review were associated with an increased risk of transmission of respiratory infection. In order to better target precautions to mitigate risk, more research is required to determine the characteristics of medical procedures and patients that increase the risk of transmission of SARS-CoV-2
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