254 research outputs found
A Comparison of Learning Achievement of Assembled Material Instruction and Traditional Instruction for Prathomsuksa 6 Students
บทคัดย่อ การศึกษาค้นคว้าครั้งนี้มีความมุ่งหมาย เพื่อเปรียบเทียบผลสัมฤทธิ์ทางการเรียน สาระทัศนศิลป์ ของนักเรียนชั้นประถมศึกษาปีที่ 6 ระหว่างกลุ่มที่เรียนโดยใช้เอกสารประกอบการเรียนและกลุ่มที่เรียนโดยการสอนแบบปกติ ประชากรที่ใช้ในการวิจัยครั้งนี้ เป็นนักเรียนชั้นประถมศึกษาปีที่ 6 โรงเรียนรัตนโกสินทร์ ๙ สำนักงานเขตพื้นที่การศึกษาสมุทรปราการ เขต 2 ภาคเรียนที่ 1 ปีการศึกษา 2551 จำนวน 4 ห้องเรียน รวมจำนวนนักเรียน 160 คน ซึ่งจัดชั้นเรียนแบบคละชั้นโดยมีเด็กเก่ง ปานกลาง และอ่อน แบ่งเป็น กลุ่มทดลอง จำนวน 2 ห้องเรียน รวมจำนวนนักเรียน 80 คนและเป็นกลุ่มควบคุม จำนวน 2 ห้องเรียน รวมจำนวนนักเรียน 80 คน เครื่องมือที่ใช้ในการวิจัย ประกอบด้วย เอกสารประกอบการเรียน สาระทัศนศิลป์ หน่วยที่ 1 การเขียนภาพระบายสี ชั้นประถมศึกษาปีที่ 6 แผนการสอนแบบปกติหน่วยที่ 1 การเขียนภาพระบายสี ชั้นประถมศึกษาปีที่ 6 และแบบทดสอบวัดผลสัมฤทธิ์ทางการเรียน ก่อนและหลังเรียนสาระทัศนศิลป์ หน่วยที่ 1 การเขียนภาพระบายสี ชั้นประถมศึกษาปีที่ 6 นำไปทดลองใช้โดยผู้วิจัยเป็นผู้สอน วิเคราะห์ข้อมูลโดยการหาค่าเฉลี่ย ค่าเบี่ยงเบนมาตรฐาน ค่าร้อยละ หาประสิทธิภาพของสื่อ ค่าความยากง่ายของแบบทดสอบสอบค่าความเชื่อมั่นของแบบทดสอบและค่าวิกฤต t - testการศึกษาพบว่า1. ผลสัมฤทธิ์ทางการเรียนของนักเรียนที่เรียนโดยใช้เอกสารประกอบการเรียนกลุ่มสาระการเรียนรู้ศิลปะ สาระทัศนศิลป์ หน่วยที่ 1 การเขียนภาพระบายสี ชั้นประถมศึกษาปีที่ 6 หลังการทดลองสูงกว่าก่อนการทดลองอย่างมีนัยสำคัญทางสถิติที่ระดับ .012. ประสิทธิภาพของการใช้เอกสารประกอบการเรียนกลุ่มสาระการเรียนรู้ศิลปะ สาระทัศนศิลป์ หน่วยที่ 1 การเขียนภาพระบายสี ชั้นประถมศึกษาปีที่ 6 เท่ากับ 84.83 ซึ่งสูงกว่าเกณฑ์ที่กำหนดไว้คือ 80 / 80 โดยมีประสิทธิภาพเท่ากับ 85.01 / 84.833. นักเรียนที่เรียนโดยใช้เอกสารประกอบการเรียน กลุ่มสาระการเรียนรู้ศิลปะ สาระทัศนศิลป์ มีผลสัมฤทธิ์ทางการเรียนสูงกว่านักเรียนที่ได้รับการสอนแบบปกติ อย่างมีนัยสำคัญทางสถิติ ที่ระดับ .014. จากการศึกษาผลงานการวาดภาพระบายสีของนักเรียนที่เรียนโดยใช้เอกสารประกอบการเรียน ผู้เรียนมีการพัฒนาการด้านการเขียนภาพระบายสีสูงขึ้นAbstract The purpose of this research was to compare the learning achievement of Prathomsuksa 6 students learning through the visual arts assembled material instruction and traditional instruction. The subjects were Prathomsuksa 6 students from Rattanakosin IX School in the 2nd semester of the 2008 academic year, Samut Prakan Education Office Area 2. They were 160 mixed ability students from 4 classrooms. They were assigned into 2 groups - the experimental and control groups. The experimental group consisted of 2 classrooms, 80 students, and the control group also consisted of 2 classrooms, 80 students. The instrument used in this study were visual arts assembled material Unit I - Color painting, lesson plans, and pre - post tests. The experiment was conducted by the researcher. The data were analyzed by arithmetic mean, standard deviation, percentage, and t - test. The efficiency of the assembled materials was analyzed through the difficulty value and the reliability of the tests.The results of the study revealed as follow.1. The learning achievement after the experiment of Prathomsuksa 6 students learning through the visual arts assembled material Unit I - Color painting was significantly higher than that prior to the experiment at .01 level.2. The efficiency of the visual arts assembled material Unit I - Color painting - was 85.01 / 84.83 which was higher than the set criterion of 80/80.3. The students learning through the visual arts assembled material instruction had significantly higher learning achievement than those learning through the traditional instruction at .01 level.4. The students learning through the visual arts assemble materials had better development in painting
Nano Encapsulated Drug Delivery for Biofilms
Biofilms are now considered ubiquitous in the natural world. Bacterial biofilms have been observed to be extremely heterogeneous, both structurally and with regard to the physiology of the bacterial cells within them. The prevailing conceptual model depicts bacterial biofilms as being made up of microcolonies, which serve as the basic unit of the greater biofilm structure. A major concern with this approach is the frequently observed development of resistance to antimicrobial compounds. A number of elements in the process of biofilm formation have been studied as targets for novel drug delivery technologies. The present study aimed to penetrate biofilm by gram positive and gram negative bacteria by in-vitro culture technique, with developed nano emulsion containing photodynamic agents. The results of this study are encouraged and significantly prevent the formation of microcolonies, building blocks of biofilms
Democracy and Artistophanes\u27 \u3ci\u3eThe Birds\u3c/i\u3e
Almost 2,500 years ago, Aristophanes wrote a scathing critique of Greek democracy and today it has the power to illuminate the failings of America’s current political state. Through the comedy of absurd power, the parallels between Pisthetaerus and Donald Trump disturb. This presentation will investigate the statements Aristophanes made against the Ancient Greeks and extend them to the executive branch of America\u27s government
Performance evaluation of LoRa based sensor node and gateway architecture for oil pipeline management
These days, the oil industrial industry is leaning toward employing smart field improvements to streamline various activities in the midstream area. Oil transportation over large distances via pipelines has a cheap cost and high efficiency in this sector. If pipelines are not properly maintained, they may fail, potentially causing catastrophic, long-term, and irreversible consequences on both natural and human conditions. Low power wide area networks (LPWANs) are without a doubt one of the domains that cause the most from industrial fields when it comes to realizing the vision of the internet of things (IoT). Long-range (LoRa) is an emerging LPWAN technology that is particularly useful for transmitting data over long distances. The goal of this work is to offer a methodology for managing oil pipelines over long distances utilizing the LoRa communication protocol and the installation of sensor nodes and LoRa gateways along the pipeline. We also used the optimized network engineering tools (OPNET) simulator to examine various simulation findings of LoRa performance
Development of a clinical prototype of a miniature hand-held optical coherence tomography probe for prematurity and pediatric ophthalmic imaging
We report a novel design and operation of a highly integrated miniature handheld OCT probe, with high-speed angiography function that can be used in clinical settings for young children and infants, providing rapid, non-invasive structural and angiographic imaging of the retina and choroid. The imaging system is operated at 200 kHz, with 3D OCT and OCTA scan time of 0.8 and 3.2 seconds, respectively, and the scanning angle on the pupil is ± 36°, covering the full perifoveal region. Operator assisting features of the direct-view iris camera and on-probe display are integrated into the hand-held probe, and the fixation target can display animations to attract the attention of young subjects. Compared to conventional OCT systems, the high-speed hand-held OCT system significantly improves the operator's experience and scanning efficiency, which is important for imaging infants. Imaging results indicate a significant reduction in total time consumption in pediatric ophthalmic imaging sessions, as well as the image quality of OCT angiography.</p
Facile and Efficient Reprogramming of Ciliary Body Epithelial Cells into Induced Pluripotent Stem Cells
Induced pluripotent stem (iPS) cells are attractive for cell replacement therapy, because they overcome ethical and immune rejection issues that are associated with embryonic stem cells. iPS cells have been derived from autonomous fibroblasts at low efficiency using multiple ectopic transcription factors. Recent evidence suggests that the epigenome of donor cell sources plays an important role in the reprogramming and differentiation characteristics of iPS cells. Thus, identification of somatic cell types that are easily accessible and are more amenable for cellular reprogramming is critical for regenerative medicine applications. Here, we identify ciliary body epithelial cells (CECs) as a new cell type for iPS cell generation that has higher reprogramming efficiency compared with fibroblasts. The ciliary body is composed of epithelial cells that are located in the anterior portion of the eye at the level of the lens and is readily surgically accessible. CECs also have a reduced reprogramming requirement, as we demonstrate that ectopic Sox2 and c-Myc are dispensable. Enhanced reprogramming efficiency may be due to increased basal levels of Sox2 in CECs. In addition, we are the first to report a cellular reprogramming haploinsufficiency observed when reprogramming with fewer factors (Oct4 and Klf4) in Sox2 hemizygous cells. Taken together, endogenous Sox2 levels are critical for the enhanced efficiency and reduced exogenous requirement that permit facile cellular reprogramming of CECs
AMBULATORY BLOOD PRESSURE PATTERNS IN PATIENTS WITH RETINAL VEIN OCCLUSION
Failure of blood pressure (BP) to dip during sleep (non-dipper pattern) is associated with cardiovascular disease (CVD) and stroke. The prevalence and degree of non-dipping and masked hypertension in patients with retinal vein occlusion (RVO), which is associated with stroke, has not been previously examined
Sphere Formation Permits Oct4 Reprogramming of Ciliary Body Epithelial Cells into Induced Pluripotent Stem Cells
Somatic cells can be reprogrammed to induced pluripotent stem (iPS) cells by defined sets of transcription factors. We previously described reprogramming of monolayer-cultured adult mouse ciliary body epithelial (CE) cells by Oct4 and Klf4, but not with Oct4 alone. In this study, we report that Oct4 alone is sufficient to reprogram CE cells to iPS cells through sphere formation. Furthermore, we demonstrate that sphere formation induces a partial reprogramming state characterized by expression of retinal progenitor markers, upregulation of reprogramming transcription factors, such as Sall4 and Nanog, demethylation in the promoter regions of pluripotency associated genes, and mesenchymal to epithelial transition. The Oct4-iPS cells maintained normal karyotypes, expressed markers for pluripotent stem cells, and were capable of differentiating into derivatives of all three embryonic germ layers in vivo and in vitro. These findings suggest that sphere formation may render somatic cells more susceptible to reprogramming
Prevalence and risk factors for diabetes mellitus among tuberculosis patients in Moshi Municipal Council, Kilimanjaro Tanzania
Background: Diabetes Mellitus (DM) is a worldwide public health problem and its prevalence has been rising rapidly in low and middle income countries (LMICs) including Tanzania. According to WHO report 2015, DM is ranked number six as a leading cause of death worldwide. Strong evidence suggests that DM may be associated with Tuberculosis (TB) and could affect TB treatment outcomes. Tanzania is among the 22 countries that have a high burden of TB and currently facing increased epidemic of DM. The increasing diabetes prevalence may be a threat to TB control and counteract strategies to end TB by 2030 as proposed by WHO.Objective: To determine proportion of TB patients who are co-infected with DM in Moshi municipal council, Kilimanjaro Tanzania.Methodology: This study was a hospital based cross-sectional study conducted in April to July 2018 at 4 health facilities; Mawenzi Regional Referral hospital, St. Joseph District Designated hospital, Pasua Health center and Majengo Health centre in Moshi municipal. The study included adults aged 18 years and above attending either of the 4 health facilities for TB care. The study included newly diagnosed and those who were on TB treatment. Interviews were conducted followed by blood glucose testing. Data was entered and analysed using SPSSResults: A total of 153 TB patients were enrolled, their mean age was 42.5 (±14.75) years and 46 (30.1%) were females. The prevalence of DM among TB patients in this study was 9.2%. Factors associated with TB-DM comorbidity were: age (OR 4.43, 95% CI: 1.18-16.55), HIV status (OR 3.88, 95% CI: 1.06-14.11), and family history of DM (OR 6.50, 95% CI 0.67-25.56).Conclusion: One in ten patients with TB had confirmed DM. There is a need for future studies to assess if DM influences TB treatment and outcomes in this setting
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