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Issue Info: 
  • Year: 

    1384
  • Volume: 

    3
Measures: 
  • Views: 

    622
  • Downloads: 

    0
Abstract: 

تنوع زیستی امروزه به عنوان یکی از موضوعات اصلی در سیاست های بین المللی به منظور دستیابی به توسعه پایدار در سراسر دنیا مورد توجه قرار گرفته است. کاهش زیستگاه های حیات وحش در حال حاضر به عنوان تهدید اصلی حفاظت تنوع زیستی در جهان محسوب می شود. از طرفی زیربناهای حمل و نقل و به ویژه شبکه جاده ها در کل دنیا عامل اصلی کاهش کیفیت و کمیت زیستگاه های طبیعی به حساب آمده و به طور مستقیم یا غیرمستقیم موجب از بین رفتن حیات وحش می شوند. به همین دلیل به نظر می رسد علاوه بر جهات مورد توجه معمول در بحث های ارزیابی اثرات محیط زیستی توسعه، نیاز است تا یک ارزیابی کامل اثرات توسعه بر تنوع زیستی در جهت کاهش اثرات منفی، به ویژه در طرح های راه سازی انجام گیرد.روش شناسی ارزیابی اثرات توسعه بر تنوع زیستی برای بررسی اثرات جاده ها بر اکوسیستم های طبیعی مبتنی بر مطالعات پایه، شامل تعیین محدوده مورد مطالعه، سطوح تنوع زیستی و نقشه سازی اکوسیستم های موجود است. سپس پیش بینی اثرات ناشی از بین رفتن و تجزیه اکوسیستم ها با استفاده از شاخص هایی چون مساحت منطقه مرکزی، جدا افتادگی و آشفتگی صورت خواهد گرفت و در نهایت ارزیابی اثرات با استفاده از معیارهای ارزشیابی از جمله معیار کمیابی و معیار درصد اکوسیستم های طبیعی باقیمانده انجام خواهد گرفت. با وجود آنکه کاربرد این روش در کشورمان با مشکلاتی همراه خواهد بود به سبب اهمیت تنوع زیستی در ایران توجه به کاربرد این روش توجیه می شود.

Yearly Impact:   مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

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Issue Info: 
  • Year: 

    2000
  • Volume: 

    108
  • Issue: 

    9
  • Pages: 

    781-788
Measures: 
  • Citations: 

    1
  • Views: 

    131
  • Downloads: 

    0
Keywords: 
Abstract: 

Yearly Impact: مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

View 131

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Author(s): 

HESSAMI R. | HAFEZI F.

Issue Info: 
  • Year: 

    2019
  • Volume: 

    26
  • Issue: 

    4
  • Pages: 

    1-8
Measures: 
  • Citations: 

    0
  • Views: 

    750
  • Downloads: 

    0
Abstract: 

BI-ALCL is an uncommon T-cell lymphoma. In 2011 FDA suggested that breast implants are possibly associated with development of BI-ALCL, since then more cases of BI-ALCL were reported. It is estimated that to this date more than 500 cases have been diagnosed as BI-ALCL around the world. In most of these cases implant surface was textured rather than smooth. Both silicone and saline filled implants have been reported to develop this problem. BIA-ALCL has two different presentations. Two-thirds of the cases present as periprosthetic fluid collection one year or later after implant insertion, and the remaining one-third as a capsular mass around breast implant. These presentations seem to be different stages of one disease. Although the best imaging-based screening is not identified, sonography, PET and CT are appropriate methods. Mammography has low sensitivity for screening of BI-ALCL. Every suspicious case should be confirmed with fine-needle aspiration and pathological examination for IHC (CD30) with insistence to rule out BI-ALCL before surgery. Operative treatment of confirmed cases should include removal of bilateral implants, total capsulectomy, and complete excision of any suspicious lymph node. The role of adjuvant treatments is under investigation. Although BIA-ALCL is rare lymphoma of breast, early diagnosis and appropriate treatment is necessary in the patients. Death has been reported in 9 patients in the U. S.

Yearly Impact: مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

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Author(s): 

Journal: 

Clinical Nutrition

Issue Info: 
  • Year: 

    2021
  • Volume: 

    40
  • Issue: 

    5
  • Pages: 

    0-0
Measures: 
  • Citations: 

    1
  • Views: 

    28
  • Downloads: 

    0
Keywords: 
Abstract: 

Yearly Impact: مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

View 28

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Author(s): 

JAHANLOU A.S.

Issue Info: 
  • Year: 

    2015
  • Volume: 

    18
  • Issue: 

    97
  • Pages: 

    26-34
Measures: 
  • Citations: 

    1
  • Views: 

    201
  • Downloads: 

    0
Keywords: 
Abstract: 

Yearly Impact: مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

View 201

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Issue Info: 
  • Year: 

    2005
  • Volume: 

    29
  • Issue: 

    -
  • Pages: 

    594-602
Measures: 
  • Citations: 

    1
  • Views: 

    143
  • Downloads: 

    0
Keywords: 
Abstract: 

Yearly Impact: مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

View 143

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Issue Info: 
  • Year: 

    2018
  • Volume: 

    13
  • Issue: 

    2
  • Pages: 

    205-213
Measures: 
  • Citations: 

    0
  • Views: 

    446
  • Downloads: 

    0
Keywords: 
Abstract: 

Phytohormones and PGRs are influencing factors in the production of secondary metabolites. Papaverace family includes valuable alkaloids with commercial importance and Papaver bracteatum belongs to this family. Benzylisoquinoline alkaloids are a diverse group of more than 2500 specified natural compounds with medicinal effect which are found in 5 plant families including Papaveraceae. In vitro plant cell culture is a promising source for high rate secondary metabolites production. In this study, the effect of methyl jasmonate (MJ) and phloroglucinol (PG) in three different concentration, 0, 100 and 200 uM and mg/L, individually and in combination together, on the stimulation of thebaine and sanguinarine production in Papaver bracteatum cell suspension cultures was studied. Both elicitors significantly increased yields of thebaine and sanguinarine production compared to the control. Thebaine production 48 hours after elicitation with concentration of 200uM MJ and 100mg/L PG was about 68. 63-fold and sanguinarine production at the same period with concentration of 200uM MJ and 200mg/L PG increased about 107. 71-fold more than control. It seem that increases can due to synergic effects of used elicitors in this suspension cell culture. Adding MJ and PG, each one lonely, also increased yields of thebaine and sanguinarine. The results of this study showed that the use of PGRs can motivate biosynthetic cycle of the production and accumulation of morphinan alkaloids in plants and levels of this alkaloids can be eleveted comparing to control plants.

Yearly Impact: مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

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Author(s): 

GHORBANIAN B.

Journal: 

Sport Physiology

Issue Info: 
  • Year: 

    2013
  • Volume: 

    5
  • Issue: 

    17
  • Pages: 

    115-129
Measures: 
  • Citations: 

    1
  • Views: 

    3733
  • Downloads: 

    0
Abstract: 

One of the best non-invasive methods for measure of anthropometric indicators is bioelectrical impedance analysis (BIA). This method is able present a lot of information about body tissue composition in minimum time with high accuracy. The purpose of this study was to assess body composition among personals of Iranian Azerbaijan Shahid Madani University by BIA and compares results them with recommendation norms of World Health Organization (WHO) and National Health, Lung, Blood Institute (NHLBI). For this aim, 270 subjects (23-59yr; 209 male and 61 female) volunteered in this study. Anthropometric indicators such as body mass index (BMI), body fat percentage (BF %), Waist-to-Hip Ratio (WHR), mass of body fat (MBF) and lean body mass (LBM) were measured by BIA.Results: For male and female average of BMI: 26.36±3.53 and 26.41±4.69kg/m², BF%: 24.38±5.12 and 33.03±5.11percentage, WHR: 090±0.06 and 0.83±0.05, MBF: 19.48±6.25 and 21.88±7.1 kg, LBM: 58.12±6.93 and 42.98±5.51kg respectively were obtained.Conclusion: The assessment variables proved that, the BMI of 65% males and 67% females and BF% of 79.9% males and 61.3% females were higher than the normal range of WHO and NHLBI recommendations. In relative to WHR as important cardiovascular disease index, 6.2% of males and 33.9% females were in high risk zoon.

Yearly Impact: مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

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Issue Info: 
  • Year: 

    2025
  • Volume: 

    12
  • Issue: 

    3
  • Pages: 

    1-6
Measures: 
  • Citations: 

    0
  • Views: 

    0
  • Downloads: 

    0
Abstract: 

Background :Despite the introduction of modern scales for assessing physical health, "body mass index" (BMI) remains a foundational metric in many health assessments.Objectives :This community-based cross-sectional study aims to compare BMI with bioelectrical impedance analysis (BIA) in evaluating the physical health of Iranian women of reproductive age. Methods :A descriptive cross-sectional study was conducted on 182 Iranian women aged 30 - 45 years, selected through random sampling from the population served by selected urban health centers. The Omron BF511 bioelectrical impedance analysis device was used to measure BMI, skeletal muscle mass, total body fat, and visceral fat. A structured questionnaire was also administered to collect sociodemographic data. Results :The average BMI of the participants was 27.47 kg/m², with skeletal muscle mass comprising 24.98%, visceral fat averaging 6.93%, and total body fat at 40.04%. When comparing BMI with total body fat, 52% of cases were misclassified; with visceral fat percentage, 68% were misclassified; and with skeletal muscle mass percentage, 73% were misclassified. Misclassification was most pronounced among individuals with a normal BMI who were overweight or obese according to body fat percentage. Conclusions :This study highlights the critical need to reassess the use of BMI as an accurate health indicator for women of reproductive age. The researchers argue that reliance on BMI as a sole health metric is outdated, emphasizing the need for a comprehensive reevaluation of health assessment criteria for women in this demographic.

Yearly Impact: مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

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Issue Info: 
  • Year: 

    0
  • Volume: 

    11
  • Issue: 

    4 (پیاپی 44)
  • Pages: 

    400-407
Measures: 
  • Citations: 

    0
  • Views: 

    817
  • Downloads: 

    0
Abstract: 

مقدمه: ابزار وضعیت رضایت از وزن برای چاقی (BIA-O)، ابزاری مفید جهت بررسی وضعیت رضایت از وزن در گروه های مختلف از جمله افراد چاق می باشد. به علت وابسته بودن فاکتور وضعیت رضایت از وزن به عوامل مختلفی از جمله فرهنگ، جهت استفاده از ابزار BIA-O در زنان باردار ایرانی، اعتبارسنجی این ابزار در جمعیت ذکر شده ضرورت دارد. این بررسی با هدف تعیین روایی و پایایی ابزار BIA-O در زنان باردار انجام شد.روش ها: در مطالعه مقطعی حاضر، تعداد 78 مادر باردار 39-15 ساله جهت شرکت در آزمون روایی و تعداد 75 مادر باردار 45-19 ساله جهت شرکت در آزمون پایایی به طور تصادفی از بین مادران باردار مراجعه کننده به مرکز مراقبت های دوران بارداری بیمارستان های شهید اکبرآبادی و میرزا کوچک خان انتخاب شدند. نمونه های مورد مطالعه نیمرخ های ابزار BIA-O را که نشان دهنده وزن قبل بارداری، وزن ایده آل و وزن منطقی از نظر آنها بود، انتخاب کردند. در آزمون روایی پرسشنامه شکل بدن (BSQ) نیز توسط نمونه ها تکمیل شد. جهت سنجش پایایی ابزار BIA-O دو بار در مورد نمونه ها با فاصله 30 دقیقه به کار گرفته شد. داده ها با آزمون های همبستگی پیرسون و همبستگی اسپیرمن آنالیز شدند.یافته ها: در آزمون روایی، 2 مقیاس نارضایتی از وزن محاسبه شده با ابزار BIA-O همبستگی بالایی را با مقیاس BSQ نشان داد (r=0.76 و r=0.72، P<0.0001). در آزمون پایایی ضرایب همبستگی آزمون مجدد برای مقیاس های وزن قبل بارداری، وزن ایده آل و وزن منطقی، به ترتیب 0.91، 0.76 و 0.70 به دست آمد که در مورد هر سه مقیاس، آزمون همبستگی از نظر آماری معنی دار بود (P<0.0001).نتیجه گیری: در این مطالعه روایی و پایایی ابزار BIA-O مورد تایید قرار گرفت و این ابزار به عنوان ابزاری مناسب جهت اندازه گیری میزان رضایت از وزن قبل از بارداری مادران باردار شناخته شد.

Yearly Impact: مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

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