In-network Distributed Event Boundary Computation in Wireless Sensor Networks: Challenges, State of the art and Future Directions

( Farhana Jabeen ),( Sarfraz Nawaz ) 한국인터넷정보학회 2013 KSII Transactions on Internet and Information Syst Vol.7 No.11

Wireless sensor network (WSN) is a promising technology for monitoring physical phenomena at fine-grained spatial and temporal resolution. However, the typical approach of sending each sensed measurement out of the network for detailed spatial analysis of transient physical phenomena may not be an efficient or scalable solution. This paper focuses on in-network physical phenomena detection schemes, particularly the distributed computation of the boundary of physical phenomena (i.e. event), to support energy efficient spatial analysis in wireless sensor networks. In-network processing approach reduces the amount of network traffic and thus achieves network scalability and lifetime longevity. This study investigates the recent advances in distributed event detection based on in-network processing and includes a concise comparison of various existing schemes. These boundary detection schemes identify not only those sensor nodes that lie on the boundary of the physical phenomena but also the interior nodes. This constitutes an event geometry which is a basic building block of many spatial queries. In this paper, we introduce the challenges and opportunities for research in the field of in-network distributed event geometry boundary detection as well as illustrate the current status of research in this field. We also present new areas where the event geometry boundary detection can be of significant importance.

ALIGNING MULTIPLE PROTEIN SEQUENCES BY AN EVOLUTIONARY TREE-BASE METHOD

Farhana naznin,Morikazu Nakamura,Chihiro Miyazato,Takeo Okazaki,Yumiko Nakajima 대한전자공학회 2006 ITC-CSCC :International Technical Conference on Ci Vol.2006 No.1

Rate Adaptation Scheme for Heterogeneous WLANs

Farhana Huq(허크 파라나),Ju Bin Song(송주빈) 한국통신학회 2009 한국통신학회 학술대회논문집 Vol.2009 No.6

Ethnopharmacological survey on traditional medicinal plants at Keraniganj, Dhaka, Bangladesh

Farhana Israt Jahan,Sharifa Sultana,Shadia Afrin Brishti,Oby Dulla 경희대학교 융합한의과학연구소 2019 Oriental Pharmacy and Experimental Medicine Vol.19 No.3

The conventional source of medicinal plants is an important way for daily curative uses in rural area throughout Bangladesh. Folk medicinal specialists or Kavirajes, assume an indispensable part in a medicinal services arrangement of both provincial and urban populace of the nation. It is vital to conduct broad meetings of individual Kavirajes of an area to get the overall status of medicinal plants. A survey was accomplished in the rustic territory of Atibazaar, Keraniganj Upazila, Dhaka, Bangladesh. This investigation has uncovered a sum of 38 plants out of which 25 plants were identifed, which belongs to 21 families. Whole plants and/or plant parts, like leaves, stems, barks, roots, fowers, fruits, seeds and wood were usually used by Kavirajes for the treatment of diferent illnesses. Leaves (84%) were the most oftentimes used plant parts, trailed by roots (52%), fruits (16%) stems and barks (16%), entire plants (12%), seeds (12%), blossoms (8%) and wood (4%). Add up to 30 diverse individual illnesses professed to be restored by plant parts including respiratory tract disorders (asthma, cough, whooping cough, bronchitis), fever, gastrointestinal disorders (constipation, diarrhea, abdominal pain, blood dysentery, fatulence), arthritis, pain, headache, irregular menstruation, piles, tooth infections, whitening teeth, diabetes, skin diseases, acne, insect, animals and reptiles bites, urinary tract disorders, infammation and nervousness. Several uses of the plants could be validated by available literature review. It is expected that other plants used for treatment of various diseases by the Kavirajes can be subjected for further bio-activity and phytochemical studies, which prompts disclosure of new medications.

Spatio-Temporal Query Processing Over Sensor Networks: Challenges, State Of The Art And Future Directions

( Farhana Jabeen ),( Sarfraz Nawaz ),( Sadaf Tanveer ),( Majid Iqbal ) 한국인터넷정보학회 2012 KSII Transactions on Internet and Information Syst Vol.6 No.7

Wireless sensor networks (WSNs) are likely to be more prevalent as their cost-effectiveness improves. The spectrum of applications for WSNs spans multiple domains. In environmental sciences, in particular, they are on the way to become an essential technology for monitoring the natural environment and the dynamic behavior of transient physical phenomena over space. Existing sensor network query processors (SNQPs) have also demonstrated that in-network processing is an effective and efficient means of interaction with WSNs for performing queries over live data. Inspired by these findings, this paper investigates the question as to whether spatio-temporal and historical analysis can be carried over WSNs using distributed query-processing techniques. The emphasis of this work is on the spatial, temporal and historical aspects of sensed data, which are not adequately addressed in existing SNQPs. This paper surveys the novel approaches of storing the data and execution of spatio-temporal and historical queries. We introduce the challenges and opportunities of research in the field of in-network storage and in-network spatio-temporal query processing as well as illustrate the current status of research in this field. We also present new areas where the spatio-temporal and historical query processing can be of significant importance.

Hepatitis B Screening before Chemotherapy

( Farhana Kayani ),( Amna Subhan Butt ) 대한간학회 2017 춘·추계 학술대회 (KASL) Vol.2017 No.1

Aims: Hepatitis B virus (HBV) and Hepatitis C virus ( HCV) infection, a major health burden that affects approximately 350 million and 140 million people worldwide. Hepatitis B and C reactivation are potentially serious complication of anticancer chemotherapy, which occurs during and after therapy causing increased mortality and morbidity. Reactivation has been reported most frequently in patients with hematologic malignancies, but it has also been associated with chemotherapy use in patients with solid tumors. Screening patients before the initiation of immunosuppressive treatment is therefore important so that prophylaxis can be commenced to prevent HBV and HCV reactivation. Objective of the study is to determine the frequency of cancer patients undergoing screening for hepatitis B and C before start of chemotherapy. Methods: Cross sectional study was conducted.Data was collected from early January 2011 till late December 16. 400 diagnosed cancer patients who met the diagnostic criteria were included. Demographic data was presented as simple descriptive statistics giving mean and standard deviation and qualitative variables was presented as frequency and percentages. Effect modifiers were controlled through stratification. Post stratification chi square test was applied taking p-value of ≤0.05 as significant.Cross sectional study was conducted.Data was collected from early January 2011 till late December 16. 400 diagnosed cancer patients who met the diagnostic criteria were included. Demographic data was presented as simple descriptive statistics giving mean and standard deviation and qualitative variables was presented as frequency and percentages. Effect modifiers were controlled through stratification. Post stratification chi square test was applied taking p-value of ≤0.05 as significant. Results: A total of 400 diagnosed cancer patients were included in this study. Mean age in our study was 55.10±8.39 years. 60 (40.8) were male and 87 (59.2%) were female. Out of 400 cancer patients, 169 (42.25%) and 231 (57.75%) patients were screened and not screened for Hepatitis B and C respectively. Conclusions: Screening of HBV and HCV infection should be suggested as a routine investigation in cancer patients before receiving chemotherapy for timely detection and prevention of reactivation of HBV and HCV infection causing fatal complications and mortality associated with it.

Effects of Post-Drying Methods on Pomelo Fruit Peels

Nur Farhana Abd Rahman,Rosnah Shamsudin,Amin Ismail,Nor Nadiah Abdul Karim Shah 한국식품과학회 2016 Food Science and Biotechnology Vol.25 No.suppl1

Changes in physicochemical properties of moisture, ash, and fat contents, and color, due to freeze and oven post-drying treatments on flavedo, albedo, and lamella pomelo fruit peels were investigated. Physicochemical properties influence consumer acceptability and only a few studies are known. Pomelo peels were subjected to freeze drying and conventional drying at 60oC. Fresh pomelo peel was used as a control. Post-drying treatment changes in moisture, ash, and fat contents were observed, compared to controls. Minimal color changes were observed for freeze drying, compared with oven drying for flavedo, albedo, and lamella. Useful information for evaluation of drying treatments that can be used on pomelo peels is provided.

Evaluation of a Typhoid/Paratyphoid Diagnostic Assay (TPTest) Detecting Anti- <i>Salmonella</i> IgA in Secretions of Peripheral Blood Lymphocytes in Patients in Dhaka, Bangladesh

Khanam, Farhana,Sheikh, Alaullah,Sayeed, Md. Abu,Bhuiyan, Md. Saruar,Choudhury, Feroza Kaneez,Salma, Umme,Pervin, Shahnaz,Sultana, Tania,Ahmed, Dilruba,Goswami, Doli,Hossain, Md. Lokman,Mamun, K. Z.,C Public Library of Science 2013 PLoS neglected tropical diseases Vol.7 No.7

<▼1><P><B>Background</B></P><P>Rapid and reliable diagnostic assays for enteric (typhoid and paratyphoid) fever are urgently needed. We report the characterization of novel approach utilizing lymphocyte secretions, for diagnosing patients with enteric fever by the TPTest procedure.</P><P><B>Methodology</B></P><P>TPTest detects <I>Salmonella</I>-specific IgA responses in lymphocyte culture supernatant. We utilized TPTest in patients with suspected enteric fever, patients with other illnesses, and healthy controls. We also evaluated simplified modifications of TPTest for adaptation in laboratories with limited facilities and equipment.</P><P><B>Principal Findings</B></P><P>TPTest was positive in 39 (27 typhoid and 12 paratyphoid A) patients confirmed by blood culture and was negative in 74 healthy individuals. Among 32 individuals with other illnesses, 29 were negative by TPTest. Of 204 individuals with suspected enteric fever who were negative by blood culture, 44 were positive by TPTest and the patients were clinically indistinguishable from patients with confirmed bacteremia, except they were more likely to be under 5 years of age. We evaluated simplifications in TPTest, including showing that lymphocytes could be recovered using lysis buffer or buffy coat method as opposed to centrifugation, that incubation of cells at 37°C did not require supplemental CO<SUB>2</SUB>, and that results were available for majority of samples within 24 hours. Positive results by TPTest are transient and revert to negative during convalescence, supporting use of the test in endemic areas. The results can also be read using immunodot blot approach as opposed to ELISA. Since no true gold standard currently exists, we used a number of definitions of true positives and negatives. TPTest had sensitivity of 100% compared to blood culture, and specificity that ranged from 78–97% (73–100, 95% CI), depending on definition of true negative.</P><P><B>Conclusion</B></P><P>The TPTest is useful for identification of patients with enteric fever in an endemic area, and additional development of simplified TPTest is warranted.</P></▼1><▼2><P><B>Author Summary</B></P><P><I>Salmonella enterica</I> serotype Typhi and Paratyphi A are responsible for typhoid and paratyphoid fever respectively and the disease caused is known generally as enteric fever. Appropriate and early diagnosis of the disease is important for initiation of treatment of the patient with a suitable antibiotic. The performance of the available diagnostic methods take time and as well as have low sensitivity and specificity. We describe here an immunodiagnostic assay, the TPTest, which is based on the use of secretions of antibodies from peripheral blood lymphocytes. We describe simplifications of the procedure and show that the assay has as a sensitivity of 100% with a specificity that ranges from 78–97% (73–100, 95% CI) for detecting patients with typhoid and paratyphoid fever in an enteric fever endemic zone. The TPTest uses a small blood volume, and reverts to negative by convalescence, supporting its further development as a relatively low cost assay to diagnose patients with enteric fever in endemic zones.</P></▼2>

Accessibility and site suitability for healthcare services using GISbased hybrid decision-making approach: a study in Murshidabad, India

Parvin Farhana,Ali Sk Ajim,Hashmi S. Najmul Islam,Khatoon Aaisha 대한공간정보학회 2021 Spatial Information Research Vol.29 No.1

Healthcare accessibility and site suitability analysis is an elongated and complex task that requires evaluation of different decision factors. The main objective of the present study was to develop a hybrid decisionmaking approach with geographic information systems to integrate spatial and non-spatial data to form a weighted result. This study involved three-tier analyses for assessing accessibility and selecting suitable sites for healthcare facilities, and analysing shortest-path network. The first tier of analysis stressed the spatial distance, density and proximity from existing healthcare to find more deprived and inaccessible areas in term of healthcare facilities. The result revealed that spatial discrepancy exists in the study area in term of access to healthcare facilities and for achieving equal healthcare access, it is essential to propose new plans. Thus, require finding suitable sites for put forward new healthcare service, which was highlighted in the second tier of analysis based on land use land cover, distancing to road and rail, proximity to residential areas, and weighted overlay of accessibility as decision factors. Finally, in the third tier of analysis, the most suitable site among the proposed healthcare was identified using the technique for order of preference by similarity to ideal solution. The road network analysis was also performed in this study to determine the shortest and fastest route from these healthcare facilities to connect with district medical hospital. The present study found some suitable sites throughout the district on inaccessible zones where people are deprived from better healthcare facilities. This attempt will highly helpful for preparing a spatial decision support system which assists the health authorities regarding the healthcare services in inaccessible, underprivileged, and rural areas.

Assessing the Factors that Led to the Success of Micro-finance

NARGIS, FARHANA,Lee, Sang-Ho,Kwon, Kyung-Sup 한국벤처창업학회 2012 한국벤처창업학회 학술대회 Vol.2012 No.8