Optimization of A Smart IOT Gateway

In recent years, the Internet of Things (IOT) has attracted many attentions. It allows a number of objects that have been embedded with wired or wireless communication interfaces to automatically communicate and interact with each other. The IOT is a system, combination of embedded controllers, sensors, software’s and network. After internet and mobile communication, IOT is regarded as the third wave of information because of its huge market prospects. The development of IOT can support a variety of applications including Intelligent Art, Intelligent Logistics, Intelligent Medicine & Healthcare, Intelligent Transportation, Intelligent Power, Smart Life etc. IOT Gateway plays an important role in IOT applications since it bridges between wireless sensor networks with traditional communication networks or internet. This paper includes an IOT Gateway system based on Zigbee and Wi-Fi protocols according to the presented data transmission between wireless sensor networks and mobile communication networks, typical IOT application scenarios and requirements from telecom operators, protocol conversion of different sensor network protocols, and control functionalities for sensor networks, and an implementation of prototyping system and system validation is given

Customer service performance of a public university library in Bangladesh

The study aims to identify the users’ perceptions regarding customer service performance of Dhaka University Library. Questionnaire based survey was done to collect respondents’ demographic information and their responses to items were based on 7-point Likert-type scale. The findings reveal that users are somewhat satisfied with the ‘physical setup’ only, and dissatisfied with the other dimensions. The study suggests customer service personnel of Dhaka University Library need to give personal attention to users’ queries, accepting and redressing user complaints and communicate with the users about library services

Perceptions of Information Professionals about Knowledge Management in the Information Institutions of Bangladesh: An Exploratory Study

The main purpose of the study is to explore the perceptions of information professionals about Knowledge Management (KM) in Bangladesh. The study was conducted through survey using a pre-structured questionnaire. A short, well-structured both open and close ended questionnaire was sent 80 information professionals who had been working in different libraries of Bangladesh by post. The respondents were selected from each division of Bangladesh (30 respondents from Dhaka division, 10 each in Chittagong, Rajshahi, Khulna, Barishal and Sylhet division). We received 40 responses and the response rate was 40 percent. The results of the survey show that 90 percent of the information professionals of Bangladesh first read about KM in literature, but none had taken any courses on KM. 43 percent of the responded information professionals of Bangladesh agreed that KM is just another fad like Total Quality Management (TQM), 50 percent of the information professionals strongly agreed that KM is a new term for what information professionals were already doing. The government of Bangladesh as well as the higher educational institutions should provide better educational opportunities on KM

Study of effect of Nigella sativa on prevention of nephrotoxicity induced by colistin in experimental animals

ABSTRACTBackground: Nigella sativa, a widely used medicinal plant throughout the world belongs to family ranunculaceae. Its Seeds and oil have a long history of folklore usage in various traditional systems of medicines and food. This study was performed to evaluate the protective effect of Nigella sativa oil (NSO) on kidney when simultaneously given with colistin sulfate (CS) which induces tubular damage in rats.Methods: Animals were treated for 7 days: Group I (n=6) with normal saline and CMC, Group II, III and IV with 300.000IU/kg/day of CS (n=6). Group III and Group IV with NSO at the dose of 1 and 2ml/kg per orum prior to CS administration. All the animals were sacrificed on 8th day. Afterwards, the plasma creatinine (pCr), blood urea, renal tissue level of malondialdehyde (MDA), reduced glutathione (GSH) and renal histology were performed.Results: Colistin sulfate induced tubular damage, increased the plasma creatinine (pCr), blood urea and MDA levels and decreased the reduced glutathione (GSH). However, simultaneous treatment with Nigella sativa oil at the dose of 1ml/kg and 2ml/kg for one week produced dose dependant improvement in tubular damage and reduced the biochemical alteration.Conclusions: It could be concluded that, Colistin sulfate induced nephrotoxicity is ameliorated by NS oil especially in higher dose of (2ml/kg). This nephroprotective effect is ascribed to free radical scavenging and potent antioxidant activity in Nigella sativa

DESAIN PENGEMBANGAN KURIKULUM PEMBELAJARAN BAHASA ARAB DI MADRASAH BERBASIS DIFERENSIASI OTAK LAKI-LAKI DAN PEREMPUAN (Studi Perspektif Neurosains)

Salah satu fungsi otak adalah sebagai mekanisme pemrosesan bahasa. Fungsi ini pula yang menyebabkan perkembangan bahasa manusia berhubungan dengan perkembangan otak. Lebih lanjut, laki-laki dan perempuan memiliki struktur otak yang berbeda. Perbedaan atau diferensiasi ini berimplikasi terhadap karakter dan pola belajar bahasa yang berbeda pula. Oleh karena itu,  memperkaya dan memperluas kurikulum adalah salah satu upaya yang dapat ditempuh lembaga pendidikan untuk memaksimalkan potensi yang ada pada siswa laki-laki (siswa)  dan atau siswa perempuan (siswi). Penelitian ini bertujuan untuk merancang sekaligus menawarkan kurikulum pembelajaran bahasa Arab berbasis diferensiasi otak laki-laki dan perempuan. Metode penelitian yang digunakan dalam penelitian ini adalah studi kepustakaan (library research). Sehubungan dengan itu, data diperoleh dari buku, artikel jurnal, surat kabar elektronik, dan sebagainya. Lalu, data dianalisis dengan analisis deskriptif. Penelitian menemukan tujuan, materi, metode, aktifitas, media, dan penilaian pembelajaran yang dibangun berdasarkan diferensiasi otak laki-laki dan perempuan. Dengan dirancangnya kurikulum ini, peserta didik akan mendapatkan pengalaman belajar sesuai dengan karakter dan potensi yang dimilikinya. Kata kunci: desain, diferensiasi otak, kurikulum, neurosains. pembelajaran bahasa Ara

Piscicidal Effects of Terminalia arjuna Leaf, Bark and Fruit Extract on a Fresh Water Predatory Catfish, Heteropneustes fossilis

Piscicidal effects of several solvent extarcts (distilled water, 50% ethanol, absolute ethanol and 80% methanol) of Terminalia arjuna leaves, barks and fruits were studied against a common fresh water predatory fish, Heteropneustes fossilis under laboratory conditions in terms of Behavior and mortality of fishes after 24 h. Fishes exposed to plant extracts showed agitating movement with quick surfacing, loss of balance, mucus secretion, and finally died. The LC50 values of distilled water, 50% ethanol, absolute ethanol and 80% methanol extracts were found to be 311.726, 236.141, 183.541, 478.794 ppm for leaves, 117.894, 96.998, 38.990, 304.193 ppm for barks and 1400.033, 949.209, 555.201, 875.158 ppm for fruits, respectively. Chi-square values were found to be insignificant at P0.01. Based on LC50 values, order of piscicidal activity followed the pattern, bark > leaf > fruit extracts. Order of piscicidal activity for the extracts was like absolute ethanol > 50% ethanol > distilled water > 80% methanol for leaf and bark, while for fruit extracts, trend was like absolute ethanol > 80% methanol > 50% ethanol > distilled water

Effect of 6-benzyl aminopurine (BAP) on meristem culture for virus free seed production of some popular potato varieties in Bangladesh

The present study was undertaken to fix the suitable concentration of 6-benzyl aminopurine on shoot development from meristem for producing virus free potato plantlet. The experiment consisted of five potato cultivars namely Diamant, Heera, Dheera, Granula and Cardinal for meristem culture and four 6-benzyl aminopurine levels namely 0, 1.0, 1.5, 2.0 mg/l. As a whole, twenty treatments were allotted in complete randomized design with three replications. Resulted in vitro regenerated plantlets were used as treatment for double antibody sandwich (DAS-), enzyme linked immunosorbent assay (ELISA) test, while, the infected plant parts were used as positive control. In virus elimination through meristem culture, Cardinal with 1 mg l-1 6-benzyl aminopurine gave maximum number of shoots (2.43 cm) explant-1, whereas, Dheera with 1.5 mg l-1 6-benzyl aminopurine gave the tallest plantlet (5.23 cm). On the other hand, explants of Dheera and Cardinal with 1.5 mg l-1 6-benzyl aminopurine and explants of Diamant, Heera, Granula and Cardinal with 2.0 mg l-1 6-benzyl aminopurine produced no roots. Finally, after DAS-ELISA test, the infected field samples developed yellow color but in vitro regenerated plantlets of all the varieties under study showed 100% virus freeness.Keywords: Virus elimination, meristem culture, virus detection, seed potatoAfrican Journal of Biotechnology Vol. 12(18), pp. 2406-241

EVALUATION OF EFFICACY AND SAFETY OF NIGELLA SATIVA OIL SUPPLEMENTATION IN PATIENTS OF CHRONIC KIDNEY DISEASE

ABSTRACTObjective: To evaluate efficacy and safety of add-on therapy of Nigella sativa oil in patients of stage 3 and 4 of chronic kidney disease (CKD).Materials and Methods: The study was conducted in a tertiary care center of north India in stage 3 and 4 patients of CKD. It was a prospective,comparative, and open label study. Patients were randomly divided into two interventional groups. Group I (Control) received conservativemanagement of CKD while Group II (Test) received conservative management along with N. sativa oil (2.5 mL, per orally, once daily) for 12 weeks.Hemogram and renal function tests were done, and adverse events were recorded at 0, 6, and 12 weeks of treatment.Results: After 12 weeks of treatment, there was a progressive improvement in clinical features and biochemical parameters in both the groups, but itwas more marked in the test group compared to control group. Both groups showed gradual improvement in the biochemical parameters as comparedto their pre-treated values which were more marked in N. sativa oil supplemented group. There was a reduction in blood glucose, blood urea, serumcreatinine, and 24-hr total urine protein. There was an increase in hemoglobin, 24-hr total urine volume, and glomerular filtration rate.Conclusion: N. sativa oil supplementation along with conservative management is efficacious and safe in averting the progression of disease in stage 3and 4 patients of CKD.Keywords: Chronic kidney disease, Nigella sativa oil, End-stage renal disease, Glomerular filtration rate

PERANAN KESULITAN EKONOMI, KEPUASAN KERJA DAN RELIGIUSITAS TERHADAP KESEJAHTERAAN PSIKOLOGIS

This study examined the effects of economic pressure, job satisfaction and religiosity on psychological well being (PWB). 53 subjects (40 male, 13 female) rated themselves with 4 self rating scales. All subjects were married, and aged between 25-29 year (M=39.3 years). Regression analysis was used in this study. Results revealed that there is significant effect of three factors (economic pressure, job satisfaction, and religiosity) on PWB (Freg=3,987