294 research outputs found
Tameness and Artinianness of Graded Generalized Local Cohomology Modules
Let , \fa\supseteq \bigoplus_{n> 0}R_n and
and be a standard graded ring, an ideal of and two finitely generated
graded -modules, respectively. This paper studies the homogeneous components
of graded generalized local cohomology modules. First of all, we show that for
all , H^i_{\fa}(M, N)_n, the -th graded component of the -th
generalized local cohomology module of and with respect to \fa,
vanishes for all . Furthermore, some sufficient conditions are proposed
to satisfy the equality \sup\{\en(H^i_{\fa}(M, N))| i\geq 0\}=
\sup\{\en(H^i_{R_+}(M, N))| i\geq 0\}. Some sufficient conditions are also
proposed for tameness of H^i_{\fa}(M, N) such that i= f_{\fa}^{R_+}(M, N)
or i= \cd_{\fa}(M, N), where f_{\fa}^{R_+}(M, N) and \cd_{\fa}(M, N)
denote the -finiteness dimension and the cohomological dimension of
and with respect to \fa, respectively. We finally consider the Artinian
property of some submodules and quotient modules of H^j_{\fa}(M, N), where
is the first or last non-minimax level of H^i_{\fa}(M, N).Comment: 18pages, with some revisions and correction
A sociolinguistic study of Tehrani Persian
This study investigates the social differences of the
Persian language in Tehran. It is based on data collected
from sixty informants: forty adults balanced equally between
the two sexes and four educational groups with university,
secondary, primary and no education respectively, and twenty
schoolchildren from both sexes equally from families with
highest and lowest education. The social parameters are related
to fourteen phonological, morphological and syntactic variables.
This work is presented in five chapters.
Chapter One gives general background information on the
city of Tehran and its social structure. It also discusses the
history of the Persian language from early days and gives some
comments on the writing system.
Chapter Two is about the research in Tehran. It gives the
characteristics of the sample and the method of interview. It
also gives a short introduction on sociolinguistic variables as
well as the theoretical issues.
In Chapter Three the co-variation of the linguistic variables
and the social factors, such as class, sex and age, as well as
style, are discussed and shown by means of figures and tables.
Chapter Four is about the politeness system in Persian.
Here the pronouns and verbs and their variations are given.
The combination of these variations and their application in
terms of power and solidarity are also discussed.
Chapter Five gives an overview of the results of the analysis.
It discusses the various theoretical issues such as transition
probabilities, lexical diffusion, and the sociolinguistic
structure of Tehran in detail, and draws the final conclusion
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Health risk assessment of engine exhaust emissions within Australian ports: a case study of Port of Brisbane
Emissions from ocean-going vessels present a significant health risk to populations surrounding ports and damage the environment. Emissions from ships using heavy fuel oil include substantial amounts of sulphur dioxide, nitrogen oxides, and particulate matter. In order to assess the risk of these emissions, a complete methodology has been developed, based on the Australian Environmental Health Risk Assessment Framework. The method includes a detailed inventory of in-port and at-sea emissions using an activity-based approach applying downwash and near-field areas from first principles equations as well as the air-shed regions from CALPUFF dispersion modeling results for Port of Brisbane in 2013. The final risk values are validated against national and European guidelines. Various health impact assessments, as well as carcinogenic and ecological effects, are discussed in depth. This study offers a significant contribution to developing a baseline measurement of the current state of risk from emissions of the ocean-going vessels visiting the port, and suggests that, given the expected development of many Australian ports in the near future, the need for continual monitoring of shipping emissions is an essential and necessary area of research
The first report of the species Thrips italicus (Thys.: Thripidae) from Iran
The thrips fauna of the orchards of the cities of Yasuj and Sisakht (Kohgiluyeh and Boyer-Ahmad province) was studied during 2012-2013. The species Thrips italicus (Bagnall), which was collected on red apple trees in Sisakht, is reported for the first time in Iran
The prevalence and incidence of atypical hemolytic uremic syndrome in Iran: A systematic review and meta-analysis protocol study
Context: Hemolytic uremic syndrome (HUS), being more prevalent in infants and children, is recognized by a triad of acute kidney injury, microangiopathic hemolytic anemia, and thrombocytopenia. It is classified according to the underlying disorders, such as infection, systemic, metabolic disorder, or complement dysregulation. It has a high rate of morbidity and mortality. Many types of treatment, such as conservative management, plasma exchange, regular plasma infusion, and even a new expensive medication, "Ecluzimab", have been suggested. The aim of this systematic review is to estimate the incidence and prevalence of HUS (according to diarrhea positive or negative samples). In addition, the study will investigate the clinical presentation and the outcome of Iranian patients. Evidence Acquisition: The following data bases will be explored for articles published between years 1985 and 2016, PubMed, EMBASE, OVID, SCOPUS,Web of Sciences, Google Scholar, Google, barakatkns.com, MagIran, SID, dociran, PDFiran, and ganj.irandoc. Besides, all online university databases will be searched for theses and abstracts of local or international congresses; a manual search will be performed to identify pertinent cross references. Systematic reviewor meta-analysis, longitudinal and cohort studies, crosssectional, case-control, and epidemiological studies will be included in this review. Relevant conference proceedings, theses or unpublished data will also be considered. The retrieved data should comprise of proportions, incidence, prevalence, geographical distribution, mortality and morbidity rates (i.e. dialysis and central nervous system involvement). A meta-analysis will be performed if 3 similar studies are found. If sufficient data is extracted, subgroup analysis will be performed for age, gender, acute kidney injury, dialysis, and death. Results: The results of the current study could have implications for health policies, practice, research, and medical education: The data could improve clinical and health care decisions, allow estimation of the number of patients that require new medication, and could direct future research design in this field. © 2018, Journal of Comprehensive Pediatrics
The prevalence and incidence of atypical hemolytic uremic syndrome in Iran: A systematic review and meta-analysis protocol study
Context: Hemolytic uremic syndrome (HUS), being more prevalent in infants and children, is recognized by a triad of acute kidney injury, microangiopathic hemolytic anemia, and thrombocytopenia. It is classified according to the underlying disorders, such as infection, systemic, metabolic disorder, or complement dysregulation. It has a high rate of morbidity and mortality. Many types of treatment, such as conservative management, plasma exchange, regular plasma infusion, and even a new expensive medication, "Ecluzimab", have been suggested. The aim of this systematic review is to estimate the incidence and prevalence of HUS (according to diarrhea positive or negative samples). In addition, the study will investigate the clinical presentation and the outcome of Iranian patients. Evidence Acquisition: The following data bases will be explored for articles published between years 1985 and 2016, PubMed, EMBASE, OVID, SCOPUS,Web of Sciences, Google Scholar, Google, barakatkns.com, MagIran, SID, dociran, PDFiran, and ganj.irandoc. Besides, all online university databases will be searched for theses and abstracts of local or international congresses; a manual search will be performed to identify pertinent cross references. Systematic reviewor meta-analysis, longitudinal and cohort studies, crosssectional, case-control, and epidemiological studies will be included in this review. Relevant conference proceedings, theses or unpublished data will also be considered. The retrieved data should comprise of proportions, incidence, prevalence, geographical distribution, mortality and morbidity rates (i.e. dialysis and central nervous system involvement). A meta-analysis will be performed if 3 similar studies are found. If sufficient data is extracted, subgroup analysis will be performed for age, gender, acute kidney injury, dialysis, and death. Results: The results of the current study could have implications for health policies, practice, research, and medical education: The data could improve clinical and health care decisions, allow estimation of the number of patients that require new medication, and could direct future research design in this field. © 2018, Journal of Comprehensive Pediatrics
Is coasting valuable in all patients with any cause of infertility?
Objectives: This study aimed to assess the influence of coasting duration on the number and quality of oocytes and fertilization rate in male factor infertile women and those with polycystic ovary syndrome (PCOS). Methods: In this prospective observational follow-up study, 114 patients undergoing coasting (53 women with male factor infertility and 61 women with PCOS) were evaluated at the Royan Institute Research Center, Iran, between 2010 and 2012. Results: The results were analyzed according to the coasting periods of 1�4 days. In normal females, the number of oocytes retrieved was significantly reduced after the second day (p = 0.004). In addition, a statistically significant drop was observed in the number of metaphase II oocytes and fertilization rate after the third day (p = 0.006 and p = 0.006, respectively). No significant differences were observed in the number and quality of oocytes retrieved and fertilization rate with regard to coasting days in PCOS patients. Conclusion: Coasting with duration of more than three days should be performed with caution in normal females who are at risk of developing ovarian hyperstimulation syndrome. © 2016, Oman Medical Specialty Board. All Rights Reserved
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