نتایج جستجو برای: aggregation functions

تعداد نتایج: 552213  

Journal: :applied biotechnology reports 0
zahra ebrahimi hamid rashedi ahmad fazeli

the aggregation of protein is the most prevalent and the most disturbing kind of instability and this challenge exists in almost every stage of the development of protein drug. the presence of insoluble aggregations in protein drugs will make the supply of the product a tough job. this study identifies the inhibition of the folded interferon beta 1-b’s aggregation with the assistance of some ex...

2011
Renata Hax Sander Reiser Benjamín R. C. Bedregal

The aim of this work is to study N−dual structures of representable implications generated from a set M of aggregation functions and pairs of mutual dual functions, founded on the isomorphism between the unit interval and special instances of the Goguen’s L-fuzzy sets. We discuss under which conditions representable functions preserve the main properties of their N−dual interval approach.

2016
Sabrina Boubiche Djallel Eddine Boubiche Azzedine Bilami Homero Toral-Cruz

Data aggregation processes aim to reduce the amount of exchanged data in wireless sensor networks and consequently minimize the packet overhead and optimize energy efficiency. Securing the data aggregation process is a real challenge since the aggregation nodes must access the relayed data to apply the aggregation functions. The data aggregation security problem has been widely addressed in cla...

Journal: :iranian journal of pharmaceutical research 0
zahra lorigooini department of pharmacognosy, school of pharmacy, shahid beheshti university of medical sciences, tehran, iran seyed abdolmajid ayatollahi department of pharmacognosy, school of pharmacy, shahid beheshti university of medical sciences, tehran, iran phytochemistry research center, shahid beheshti university of medical sciences, tehran, iran salimeh amidi department of medicinal chemistry, school of pharmacy, shahid beheshti university of medical sciences, tehran, iran farzad kobarfard -

epidemiologic studies show that the cardiovascular diseases are associated with multiple factors such as raised serum total cholesterol, increased ldl, increased platelet aggregation, hypertension and smoking. in-vitro studies have confirmed the ability of some plants of allium species to reduce these parameters. therefore, we evaluated anti-platelet aggregation effect of some allium species (a...

2014
Alan J. Weids Chris M. Grant

Peroxiredoxins are ubiquitous thiol-specific proteins that have multiple functions in stress protection, including protection against oxidative stress. Tsa1 is the major yeast peroxiredoxin and we show that it functions as a specific antioxidant to protect the cell against the oxidative stress caused by nascent-protein misfolding and aggregation. Yeast mutants lacking TSA1 are sensitive to misf...

Journal: :Wireless Networks 2010
Shih-I Huang Shiuh-Pyng Shieh J. Doug Tygar

This paper proposes a secure encrypted-data aggregation scheme for wireless sensor networks. Our design for data aggregation eliminates redundant sensor readings without using encryption and maintains data secrecy and privacy during transmission. Conventional aggregation functions operate when readings are received in plaintext. If readings are encrypted, aggregation requires decryption creatin...

Journal: :Computers & Mathematics with Applications 2008
Yu-Ru Syau Lixing Jia E. Stanley Lee

Concave properties play a dominate role in solving both classic and fuzzy optimization problems. However, since fuzzy problems are generally represented by sets, not crisp numbers, various aggregation schemes are needed to manipulate and to combine the different elements in a fuzzy optimization problem. Based on these different aggregations, various concavity properties can be formulated and ex...

Journal: :iranian journal of microbiology 0
manizheh karami department of biology, faculty of basic sciences, shahed university, tehran, iran. seyed sajad shahrokhi department of biology, faculty of basic sciences, shahed university, tehran, iran. bahram kazemi biotechnology & molecular biology research center, shahid beheshti university of medical sciences, tehran, iran. seyedeh samaneh moezzi department of biology, faculty of basic sciences, shahed university, tehran, iran.

background and objective: nitric oxide (no) plays a role in thermoregulation and growth of protozoa. this work aimed to add the molecule no in physiology of protozoa in contact with abused narcotic substances. materials and methods: a sedative drug, morphine, was infused into a cell chamber containing paramecia . the cell response to the drug was recorded promptly after drug infusion using a po...

Journal: :journal of advances in computer engineering and technology 0
nafiseh daneshgar islamic azad university qazvin branch qazvin, iran m. habibi najafi islamic azad university qazvin branch qazvin, iran mohsen jahanshahi dept. of computer engineering central tehran branch, islamic azad university, tehran, iran ehsan ahvar institut mines-telecom telecom sudparis, evry, france

energy consumption is considered as a critical issue in wireless sensor networks (wsns). batteries of sensor nodes have limited power supply which in turn limits services and applications that can be supported by them. an efcient solution to improve energy consumption and even trafc in wsns is data aggregation (da) that can reduce the number of transmissions. two main challenges for da are: (i)...

Journal: :iranian red crescent medical journal 0
maryam zarkesh cellular and molecular endocrine research center, research institute for endocrine sciences, shahid beheshti university of medical sciences, tehran, ir iran golaleh asghari nutrition and endocrine research center, research institute for endocrine sciences, shahid beheshti university of medical sciences, tehran, ir iran parisa amiri research center for social determinants of endocrine health and obesity research center, research institute for endocrine sciences, shahid beheshti university of medical sciences, tehran, ir iran; research center for social determinants of endocrine health and obesity research center, research institute for endocrine sciences, shahid beheshti university of medical sciences, p. o. box: 19395-4763, tehran, ir iran. tel: +98-212409309, fax: +98-212402463 nima hosseinzadeh cellular and molecular endocrine research center, research institute for endocrine sciences, shahid beheshti university of medical sciences, tehran, ir iran mehdi hedayati cellular and molecular endocrine research center, research institute for endocrine sciences, shahid beheshti university of medical sciences, tehran, ir iran arash ghanbarian prevention of metabolic disorders research center, research institute for endocrine sciences, shahid beheshti university of medical sciences, tehran, ir iran

background since genetic and most environmental factors shape the context of families, some studies have been initiated to investigate the role of familial relationships in metabolic syndrome (mets). objectives to estimate the familial aggregation of mets and its components by identifying both case and control probands among tehranian adults with different socio-behavioral and reproductive char...

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