30 research outputs found
Making Hopscotch Game To Learn Vocabulary For Elementary School Students
English is the global lesson studied in every single of education system nowadays. In fact, it is quite difficult to learn for the Indonesian people, especially for Elementary school students. One of the ways to improve their desire to learn is to combine educational elements into the game itself. This final project comes to answer that learning problem of children or elementary students by creating the alternative game. The research question was “Is there a Hopscotch Game to learn vocabulary for Elementary School Students. The purpose of the study was to make a Hopscotch Game to learn vocabulary for Elementary School Students. The method used in this study was descriptive research. It explained the problems qualitatively to uncover solutions. The result of this study was a game which was developed from traditional games namely Hopscotch game. Application of English element in this game is the manufacturing of cards which contains some vocabulary and picture that represents the vocabulary. Therefore, surely it is easy for students to remember and to increase the number of their English vocabulary. On the other hand, they are challenged to complete all leaps in Hopscotch game while memorizing all the vocabulary that is given when they are going to jump. Then, when students make a mistake, they will get punishment which also helps to improve their vocabulary. In conclusion, maintaining the existence of traditional games and helping children to improve English vocabulary is a unique combination that is expected can be successful for students' learning
Взаимосвязь пальцевого индекса и развития предметно-познавательных способностей школьников
В настоящее время уделяют серьезное внимание антропологическому исследованию. Нами проведено исследование пальцевого индекса у школьников старших классов. В исследовании принимали участие 24 школьника, из них мальчиков - 10 и девочек - 14; средний возраст - 14,5 лет. Оказалось, что у большинства мальчиков пальцевой индекс ниже единицы. Школьницы с пальцевым индексом единица и выше единицы учатся лучше, занимаются активно спортом, интересуются танцами и музыкой. Однако, достоверной зависимости успехов по русскому языку от пальцевого индекса у школьников не обнаружено. Возможно, полученные данные связаны с маленькой выборкой исследуемого материал
Research of biochemical gold recovery method using high-arsenic raw materials
This article contains the results of experiments to recover gold from complex mineral raw materials containing more than 15 % arsenic. Laboratory tests showed that standard cyanidation recovers only 26,4 % of gold into the solution. Additional oxidizing reagents used increase the leaching efficiency and enable to recover more than 40 % of gold during subsequent cyanidation. The efficiency has been established for replacement of cyanide with thiourea and thiosulfate solutions. 79,5 %, i.e. the maximum recovery rate, was found in the experiment with preliminary oxidation with T. Ferrooxidans, a bacterial culture, followed by leaching with a thiourea solution
Stimulation of lymphocyte anti-melanoma activity by co-cultured macrophages activated by complex homeopathic medication
<p>Abstract</p> <p>Background</p> <p>Melanoma is the most aggressive form of skin cancer, and the most rapidly expanding cancer in terms of worldwide incidence. Chemotherapeutic approaches to treat melanoma have been uniformly disappointing. A Brazilian complex homeopathic medication (CHM), used as an immune modulator, has been recommended for patients with depressed immune systems. Previous studies in mice have demonstrated that the CHM activates macrophages, induces an increase in the number of leukocytes and improves the murine response against Sarcoma-180.</p> <p>Methods</p> <p>Here we studied the interaction of mouse lymph node lymphocytes, co-cultured <it>in vitro </it>with macrophages in the presence or absence of the CHM, with B16F10 melanoma cells.</p> <p>Results</p> <p>Lymphocytes co-cultured with macrophages in the presence of the CHM had greater anti-melanoma activity, reducing melanoma cell density and increasing the number of lysed tumor cells. There was also a higher proportion of activated (CD25<sup>+</sup>) lymphocytes with increased viability. Overall, lymphocytes activated by treatment destroyed growing cancer cells more effectively than control lymphocytes.</p> <p>Conclusion</p> <p>Co-culture of macrophages with lymphocytes in the presence of the CHM enhanced the anti-cancer performance of lymphocytes against a very aggressive lineage of melanoma cells. These results suggest that non-toxic therapies using CHMs are a promising alternative approach to the treatment of melanomas. In addition, they are attractive combination-therapy candidates, which may enhance the efficacy of conventional medicines by improving the immune response against tumor cells.</p
Doing synthetic biology with photosynthetic microorganisms
The use of photosynthetic microbes as synthetic biology hosts for the sustainable production of commodity chemicals and even fuels has received increasing attention over the last decade. The number of studies published, tools implemented, and resources made available for microalgae have increased beyond expectations during the last few years. However, the tools available for genetic engineering in these organisms still lag those available for the more commonly used heterotrophic host organisms. In this mini-review, we provide an overview of the photosynthetic microbes most commonly used in synthetic biology studies, namely cyanobacteria, chlorophytes, eustigmatophytes and diatoms. We provide basic information on the techniques and tools available for each model group of organisms, we outline the state-of-the-art, and we list the synthetic biology tools that have been successfully used. We specifically focus on the latest CRISPR developments, as we believe that precision editing and advanced genetic engineering tools will be pivotal to the advancement of the field. Finally, we discuss the relative strengths and weaknesses of each group of organisms and examine the challenges that need to be overcome to achieve their synthetic biology potential.Peer reviewe
Evaluation of the effectiveness of Tofacitinib in rheumatoid arthritis in real clinical practice: The relationship between pain relief in the first 4 weeks and disease activity after 3–6 months
The JAK inhibitor tofacitinib (TOFA) blocks the intracellular signaling pathway that activates the synthesis of cytokines and mediators involved in the development of pain and central sensitization (CS), which determines the rapid analgesic effect. However, it is not clear how pain reduction is associated with achieving low activity in rheumatoid arthritis (RA).The aim of the study was to assess the relationship between the early clinical response to tofacitinib and a decrease in rheumatoid arthritis activity after 3 and 6 months.Material and methods. The study group consisted of 88 RA patients (age – 53±11.5 years; 79.3% of women) who received basic anti-inflammatory drugs (59.5% – methotrexate, 19.8% – leflunomide) and who were prescribed TOFA in a dose 10 mg/day. Seropositivity for rheumatoid factor was 89.8%; the value of the DAS28 index is 5.2±1.2. The severity of pain was assessed using the Brief Pain Inventory questionnaire, the neuropathic component of pain (NCP) – using the PainDETECT questionnaire, signs of CS – using the Central Sensitization Inventory (CSI) questionnaire in the early stages after the administration of TOFA, RA activity – using the DAS28-CRP index after 3 and 6 months.Results. The mean severity of pain at baseline was 5.3±2.0 on the visual analogue scale (VAS); 51.1% of patients had signs of CS (CSI>40), 15.9% had NCP (PainDETECT>18). 7 days after the start of therapy, there was a significant decrease in pain – to 4.1±1.8 according to VAS (p<0.05) and CS – 40.4±13.5 to 36.5±12.5 according to CSI (p=0.01). After 28 days, the effect was even more significant: the level of pain according to the VAS was 2.8±1.6 (p=0.000), the NCP decreased from 11.8±5.6 to 6.8±3.1 (p=0.000), CS – up to 31.6±13.9 (p=0.000). The value of the DAS28-CRP index after 3 and 6 months was 3.7±1.3 and 3.6±1.2, respectively. The number of patients with pain relief ≥50% after 28 days was 59.9%, low RA activity after 3 months. (DAS28-CRP≤3.2) was acieved in 64.4% of patients. There was a clear correlation between the number of patients with a pain reduction of ≥50% at 28 days and the number of patients who achieved low RA activity at 3 and 6 months. (rS=0.548, p=0.000 and rS=0.790, p=0.000). 6 patients dropped out of the study due to inefficiency or social reasons. No serious adverse reactions were noted.Conclusions. The use of the JAK inhibitor TOFA allows achieving a quick analgesic effect and reducing the signs of CS. An early clinical response to TOFA (pain relief) predicts a decrease in RA activity after 3 and 6 months of therapy
The algal chloroplast as a synthetic biology platform for production of therapeutic proteins
The chloroplast of Chlamydomonas reinhardtii and other microalgae represents an attractive new platform for the synthesis of recombinant therapeutics using synthetic biology (synbio) approaches. Transgenes can be designed in silico, assembled from validated DNA parts and inserted at precise and predetermined locations within the chloroplast genome to give stable synthesis of a desired recombinant protein. Numerous recent examples of different therapeutic proteins produced successfully in the C. reinhardtii chloroplast highlight the potential of this green alga as a simple, low-cost and benign host. Furthermore, some of the features of the alga may offer additional advantages over more-established microbial, mammalian or plant-based systems. These include efficient folding and accumulation of the product in the chloroplast; a lack of contaminating toxins or infectious agents; reduced downstream processing requirements; the possibility to make complex therapeutics such as immunotoxins; and the opportunity to use the whole alga as a low-cost oral vaccine. In this paper we review the current status of algal chloroplast engineering with respect to therapeutic proteins. We also consider future advances in synbio tools, together with improvements to recipient strains, which will allow the design of bespoke strains with high levels of productivity
