فیلترها/جستجو در نتایج    

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متن کامل


اطلاعات دوره: 
  • سال: 

    1390
  • دوره: 

    13
  • شماره: 

    4
  • صفحات: 

    234-240
تعامل: 
  • استنادات: 

    0
  • بازدید: 

    902
  • دانلود: 

    211
چکیده: 

مقدمه: ایمنی منازل در حفظ سلامت جامعه به خصوص گروه های آسیب پذیر شامل کودکان و سالمندان نقش موثری دارد. این بررسی با هدف تعیین نقش منطقه مسکونی در میزان ایمنی منزل انجام شده است.روش کار: این بررسی مقطعی به روش نمونه گیری خوشه ای تصادفی بر روی 459 منزل در منطقه مرکزی و حاشیه شهر مشهد بر اساس چک لیست ایمنی منازل در طرح کشوری پیشگیری از سوانح خانگی انجام شد. این پرسشنامه پنج قسمت آشپزخانه، اتاق، حمام، بالکن و بام، و راه پله داشت که هر کدام پس از مشاهده امتیازدهی شد. در پایان امتیاز کلی منزل و بخش های پنج گانه آن محاسبه و دسته بندی شد. همچنین عوامل دموگرافیک مربوط به سرپرست خانوار در دو منطقه شامل جنس، وضعیت تاهل و شغل، تعداد افراد خانوار و سطح تحصیلات ثبت گردید.یافته ها: ایمنی منازل دو گروه در بخش های محوطه اتاق ها، حمام و سرویس های بهداشتی داخل منزل، محوطه خارجی منزل شامل بالکن، حیاط، پشت بام و پارکینگ (p<0.001) تفاوت چشمگیر داشتند. همچنین در بین عوامل دموگرافیک نقش جنس و میزان تحصیلات سرپرست خانوار در ایمنی منزل قابل توجه بود، به طوری که در زنان و افراد با تحصیلات کمتر از دیپلم میزان ایمنی منزل در هر دو منطقه کاهش می یافت و میزان این کاهش در منطقه حاشیه شهر بیشتر بود.نتیجه گیری: ایمنی منازل در مناطق مختلف شهر بیشتر متاثر از منطقه است. لذا نظارت بر ساخت و سازهای حاشیه شهر به خصوص در تعمیرات و تغییرات داخل ساختمان ها الزامی است. تقویت بنیادهای حمایتی زنان سرپرست خانوار و افزایش سطح اطلاعات عمومی جامعه می تواند در ارتقا ایمنی منازل نقش موثری داشته باشد.

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بازدید 902

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نشریه: 

جغرافیا

اطلاعات دوره: 
  • سال: 

    1396
  • دوره: 

    15 (دوره جدید)
  • شماره: 

    53
  • صفحات: 

    165-180
تعامل: 
  • استنادات: 

    0
  • بازدید: 

    1526
  • دانلود: 

    339
چکیده: 

شهرگریزی با تعاریف گوناگون در ادبیات پژوهش مطرح شده و تعریف آن بر افزایش جمعیت شهرهای کوچک(small cities)  در فرایند رشد و توسعه شهرها دلالت دارد. در این پژوهش، براساس داده های جمعیتی، مهاجرتی، آمدوشدهای روزانه (commuting) و محرک های مهاجرتی، سعی شده است با بهره گیری از روشی اکتشافی به بررسی پدیده شهرگریزی در منطقه کلانشهری اصفهان پرداخته شود. نتایج نشان می دهد که افزایش جمعیت در طی دورهای مختلف از شهرهای بزرگ به نفع شهرهای کوچک و خارج از محدوده کلانشهری تغییر جهت داده است. به صورتی که در فواصل نزدیک به شهر اصلی رشد جمعیت کمتری در طی دهه اخیر مشاهده می شود. با توجه به مهاجرت و اثربخشی مهاجرت  (migration effectiveness)بر جمعیت و همچنین محرک های مهاجرتی در منطقه می توان بیان داشت که عواملی مانند دستیابی به مسکن بهتر و شغل از جمله مهمترین محرک ها در افزایش جمعیت شهرهای کوچک در پیرامون شهر اصلی بوده است. همچنین کاهش آمدوشد روزانه جمعیت با فاصله گرفتن از شهر اصلی نشان می دهد که شهرهای با فاصله گرفتن از شهر مرکزی از استقلال عملکردی بیشتر برخوردارند. همچنین براساس مدل برگشت تمرکز  (polarization reversal)و بررسی فرایندهای تحولات جمعیتی در منطقه کلانشهری، تحولات جمعیتی از مرکز به پیرامون مشاهده می شود که در هر دوره به کاهش جمعیت شهر اصلی و افزایش جذب جمعیت در شهرهای کوچک منجر شده است. در مجموع می توان بیان داشت که منطقه کلانشهری اصفهان از یک مرحله شهرنشینی به مرحله شهرگریزی وارد شده است.

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اطلاعات دوره: 
  • سال: 

    1402
  • دوره: 

    13
  • شماره: 

    3
  • صفحات: 

    67-87
تعامل: 
  • استنادات: 

    0
  • بازدید: 

    145
  • دانلود: 

    24
چکیده: 

A B S T R A C T The current research is descriptive-analytical. In terms of purpose, it is in the category of applied research. Both library and field methods have collected the information required for this research. The statistical population of the research consisted of citizens living in Kasra, Azadi, Rezvan, Rahan, Hasht Behesht and Zeytoun RESIDENTIAL complexes, which consisted of 6588 people, and the sample size according to the Cochran formula was 364. The study results of the studied RESIDENTIAL complexes from the perspective of spatial connectivity indicators indicated that among the investigated complexes, Rahan RESIDENTIAL complex had the lowest connectivity index compared to the rest of the complexes, and the highest share of this comparison goes to Kasra RESIDENTIAL complex. From the comparison of the complexes based on the interconnection index, we conclude that the location of spaces and accesses in Rahan complex is very weak. Compared to the rest of the complexes, the location of access and communication in Kasra complex is lower. Moreover, Rezvan has been suitable and successful. It is said that the increase of connection in public spaces occurs with increase of sociability. Among the other results of this research, the spatial order component with the path coefficient value of 0.368 has the highest path coefficient among the investigated components. In the first place, the playability component with a path coefficient of 0.253 is in the second place, the multi-purpose component with a path coefficient of 231 0.0 in the third place, the security component with a path coefficient of 0.162 is in the fourth place and the environmental comfort component is in the fifth place with a path coefficient of 0.153 Extended Abstract Introduction In the public space of neighborhoods and RESIDENTIAL environments, the issue of sociability has been less addressed. Public spaces can boost the social life of citizens by strengthening social interactions and being involved in social sustainability. The RESIDENTIAL environment conveys the residents a sense of well-being and satisfaction through physical, social or symbolic features. In each RESIDENTIAL complex, according to the different arrangements of the blocks in it, it is possible to reach different influential indicators of the public space in it, which, according to the way they are arranged, have different potentials from the point of view of sociability in them. Declining sociability causes many problems in relationships between people and reduces the sense of belonging to a place, security, and other issues caused by not paying attention to the quality of collective life in housing. The main question is: - What are the components of the spatial structure affecting the sociability of RESIDENTIAL complexes in the city of Kermanshah?   Methodology The current research is descriptive-analytical. In terms of purpose, it is in the category of applied research. Two library and field methods have collected the information needed for this research. In the field method, primary data collection has been done according to the research questions by designing a 5-scale Likert scale questionnaire. The statistical population of the study consisted of citizens living in Kasra, Azadi, Rezvan, Rahan, Hasht Behesht and Zeytoun RESIDENTIAL complexes, which consisted of 6588 people, and the sample size was estimated to be 364 people using the Cochran formula. Factors such as the ease of access to the complexes, the willingness and cooperation of the residents and the management of the complexes were also influential in selecting the samples studied in this research. In this research, in order to investigate the sociability of RESIDENTIAL complexes based on the   theoretical framework prepared in the present research, the physical indicators affecting this issue include five indicators of "connectivity, interconnectedness, control, selection and depth" in each of The studied samples have been evaluated and analyzed in public spaces including the playground, gathering space, parking lot, and lobby. This research used Depthmap analytical software and structural equation modeling software to analyze the data.   Results and discussion In this research, the relation of sociability of public spaces of RESIDENTIAL complexes in Kermanshah, which includes Kasra RESIDENTIAL complex, Azadi RESIDENTIAL complex, Rezvan RESIDENTIAL complex, Rahan RESIDENTIAL complex, Hasht Behesht RESIDENTIAL complex and Zeytoun RESIDENTIAL complex as the basis of the research case. Among the samples studied, Rahan RESIDENTIAL complex has the lowest connectivity index compared to other complexes; the largest share of this comparison goes to Kasra RESIDENTIAL complex. In the meantime, Zeytoun RESIDENTIAL complex, then Azadi, Hasht Behesht and Rezvan have the lowest to the highest amount. It can be seen that the public spaces of Rahan RESIDENTIAL complex do not have the desired level of connectivity. As the communication increases, the spaces will become more sociable. From the comparison of the complexes based on the interconnection index, we conclude that the location of the spaces and accesses in the Rahan complex is very weak and lower than the rest of the complexes. According to the numbers extracted, Zeytoun complex and following that Kasra and Rezvan complexes are at the same level of performance, and Azadi and Hasht Behesht complexes have the best performance in this aspect; the placement of access and communications in Kasra and Rezvan complexes has been appropriate and successful. It is said that the increase of connection in public spaces occurs with the increase of sociability. Among the investigated sociability components, the spatial order component with the path coefficient value of 0.368 has the highest path coefficient. In the first place the playability component with a path coefficient of 0.253 is in the second place, and the multipurpose component with a path coefficient of 0.231. In the third place, the security component, with a path coefficient of 0.162, is in the fourth place, and the environmental comfort component is in the fifth place, with a path coefficient of 0.153.     Conclusion Living in the common spaces of RESIDENTIAL complexes allows one to be with others comfortably and effortlessly. A person can take a usual walk to be among people, sit on a bench near the door for a short time, and even sometimes look out of the window can be a worthwhile activity. In this research, an attempt was made to examine the condition of the studied RESIDENTIAL complexes from the perspective of sociability. The results showed that Rahan RESIDENTIAL complex had the lowest level of connectivity index compared to the rest of the complexes and the largest share of this. The comparison reaches Kasra RESIDENTIAL complex. In the meantime, Zeytoun RESIDENTIAL complex, then Azadi, Hasht Behesht and Rezvan have the lowest to the highest amount. It can be seen that the public spaces of Rahan RESIDENTIAL complex do not have the desired level of connectivity. As the communication increases, the spaces will become more sociable. From the comparison of the complexes based on the interconnection index, we conclude that the location of spaces and accesses in Rahan complex is very weak. Compared to the rest of the complexes, the location of access and communication in Kasra complex is lower. And Rezvan has been suitable and successful. It is said that the increase of connection in public spaces occurs with the increase of sociability. Extended Abstract Introduction In the public space of neighborhoods and RESIDENTIAL environments, the issue of sociability has been less addressed. Public spaces can boost the social life of citizens by strengthening social interactions and being involved in social sustainability. The RESIDENTIAL environment conveys the residents a sense of well-being and satisfaction through physical, social or symbolic features. In each RESIDENTIAL complex, according to the different arrangements of the blocks in it, it is possible to reach different influential indicators of the public space in it, which, according to the way they are arranged, have different potentials from the point of view of sociability in them. Declining sociability causes many problems in relationships between people and reduces the sense of belonging to a place, security, and other issues caused by not paying attention to the quality of collective life in housing. The main question is: - What are the components of the spatial structure affecting the sociability of RESIDENTIAL complexes in the city of Kermanshah?   Methodology The current research is descriptive-analytical. In terms of purpose, it is in the category of applied research. Two library and field methods have collected the information needed for this research. In the field method, primary data collection has been done according to the research questions by designing a 5-scale Likert scale questionnaire. The statistical population of the study consisted of citizens living in Kasra, Azadi, Rezvan, Rahan, Hasht Behesht and Zeytoun RESIDENTIAL complexes, which consisted of 6588 people, and the sample size was estimated to be 364 people using the Cochran formula. Factors such as the ease of access to the complexes, the willingness and cooperation of the residents and the management of the complexes were also influential in selecting the samples studied in this research. In this research, in order to investigate the sociability of RESIDENTIAL complexes based on the theoretical framework prepared in the present research, the physical indicators affecting this issue include five indicators of "connectivity, interconnectedness, control, selection and depth" in each of The studied samples have been evaluated and analyzed in public spaces including the playground, gathering space, parking lot, and lobby. This research used Depthmap analytical software and structural equation modeling software to analyze the data.   Results and discussion In this research, the relation of sociability of public spaces of RESIDENTIAL complexes in Kermanshah, which includes Kasra RESIDENTIAL complex, Azadi RESIDENTIAL complex, Rezvan RESIDENTIAL complex, Rahan RESIDENTIAL complex, Hasht Behesht RESIDENTIAL complex and Zeytoun RESIDENTIAL complex as the basis of the research case. Among the samples studied, Rahan RESIDENTIAL complex has the lowest connectivity index compared to other complexes; the largest share of this comparison goes to Kasra RESIDENTIAL complex. In the meantime, Zeytoun RESIDENTIAL complex, then Azadi, Hasht Behesht and Rezvan have the lowest to the highest amount. It can be seen that the public spaces of Rahan RESIDENTIAL complex do not have the desired level of connectivity. As the communication increases, the spaces will become more sociable. From the comparison of the complexes based on the interconnection index, we conclude that the location of the spaces and accesses in the Rahan complex is very weak and lower than the rest of the complexes. According to the numbers extracted, Zeytoun complex and following that Kasra and Rezvan complexes are at the same level of performance, and Azadi and Hasht Behesht complexes have the best performance in this aspect; the placement of access and communications in Kasra and Rezvan complexes has been appropriate and successful. It is said that the increase of connection in public spaces occurs with the increase of sociability. Among the investigated sociability components, the spatial order component with the path coefficient value of 0.368 has the highest path coefficient. In the first place the playability component with a path coefficient of 0.253 is in the second place, and the multipurpose component with a path coefficient of 0.231. In the third place, the security component, with a path coefficient of 0.162, is in the fourth place, and the environmental comfort component is in the fifth place, with a path coefficient of 0.153.     Conclusion Living in the common spaces of RESIDENTIAL complexes allows one to be with others comfortably and effortlessly. A person can take a usual walk to be among people, sit on a bench near the door for a short time, and even sometimes look out of the window can be a worthwhile activity. In this research, an attempt was made to examine the condition of the studied RESIDENTIAL complexes from the perspective of sociability. The results showed that Rahan RESIDENTIAL complex had the lowest level of connectivity index compared to the rest of the complexes and the largest share of this. The comparison reaches Kasra RESIDENTIAL complex. In the meantime, Zeytoun RESIDENTIAL complex, then Azadi, Hasht Behesht and Rezvan have the lowest to the highest amount. It can be seen that the public spaces of Rahan RESIDENTIAL complex do not have the desired level of connectivity. As the communication increases, the spaces will become more sociable. From the comparison of the complexes based on the interconnection index, we conclude that the location of spaces and accesses in Rahan complex is very weak. Compared to the rest of the complexes, the location of access and communication in Kasra complex is lower. And Rezvan has been suitable and successful. It is said that the increase of connection in public spaces occurs with the increase of sociability.

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بازدید 145

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مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources
اطلاعات دوره: 
  • سال: 

    1403
  • دوره: 

    2
  • شماره: 

    1
  • صفحات: 

    1-19
تعامل: 
  • استنادات: 

    0
  • بازدید: 

    44
  • دانلود: 

    4
چکیده: 

در کشور ایران، مناطق مرزی در سطح بسیار پایین ­تر از نواحی داخلی به لحاظ توسعه قرار دارند؛ بنابراین، حل این مشکلات، نیازمند به کارگیری رویکردهایی است که با شناخت درست از گذشته و شناسایی قابلیت ­های موجود، در جهت ترسیم آینده ­ی مطلوب گام بردارد. مطالعات آینده­ پژوهی به عنوان یک رویکرد نوین، با تجزیه وتحلیل منابع موجود می ­تواند نقش اساسی در شکل­ دهی به آینده ایفا کند. مقاله­ ی حاضر با هدف شناسایی نیروهای پیشران در وضعیت سکونتگاهی استان کرمانشاه برای افق 25 سال آینده انجام شده است. این پژوهش از لحاظ هدف، کاربردی و به لحاظ روش، توصیفی­­_تحلیلی می ­باشد. جهت تحلیل پرسشنامه و ماتریس اثرات متقاطع از نرم افزار میک مک(MicMac)  استفاده شده است. نتایج حاصل از تحقیق نشان می­ دهد که نیروهای پیشران مؤثر بر وضعیت آینده سکونت­گاهی استان کرمانشاه شامل 21 مورد هستند که با نظرسنجی از خبرگان به دست آمده است، تأثیرگذارترین متغیرها در آینده نظام سکونت­گاهی استان کرمانشاه شامل متغیرهایی هستند که نگرش در این متغیرها می تواند موجب تغییر در آرایش شبکه ­های سکونت­گاهی استان شود. متغیرهای، مجاورت با مرز بین ­المللی، شبکه حمل ونقل ریلی و جاده ­ای، وجود بازارچه ­های مرزی در دسته متغیرهای با تأثیرگذاری بالا قرارگرفته ­اند. گروهی دیگر از متغیرها، با عنوان متغیرهای تأثیرپذیر شناسایی شده ­اند که شامل وضعیت اشتغال در مناطق مرزی و فواصل بین سکونت­گاه­ ها می­ باشد. این نوع از متغیرها تأثیرگذاری چندانی ندارند ولی تأثیر­پذیری بالایی دارند اما تأثیرگذاری آن­ها در وضعیت­ های آینده بستگی به نحوه عمل دیگر متغیرها دارد. همچنین پنج وضعیت محتمل برای آینده نظام سکونتی استان شناسایی شده که احتمال وقوع هرکدام بستگی به توجه یا عدم توجه به هر یک از پیشران­ ها دارد.

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نویسندگان: 

DEHGHANI R.

اطلاعات دوره: 
  • سال: 

    2014
  • دوره: 

    23
  • شماره: 

    110
  • صفحات: 

    250-254
تعامل: 
  • استنادات: 

    1
  • بازدید: 

    146
  • دانلود: 

    0
کلیدواژه: 
چکیده: 

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بازدید 146

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اطلاعات دوره: 
  • سال: 

    2019
  • دوره: 

    7
  • شماره: 

    1
  • صفحات: 

    48-50
تعامل: 
  • استنادات: 

    0
  • بازدید: 

    142
  • دانلود: 

    0
چکیده: 

The class Diplopoda (the millipedes) is the most abundant and diverse group within the Myriapoda, comprising 15 orders and numerous families. They range in length from very tiny (∼ 5 mm in Polyxenida) to the longest terrestrial invertebrates (some Spirostreptida being up to 35 cm long) in tropical and subtropical regions. On the 29th September 2018, the residents of Dare Mal (a village of Marvdasht city) were faced with a massive infestation of an unknown larva. Arthropods were transferred to the Entomology Laboratory of Shiraz Health School. The unknown arthropods were identified as millipede larvae belonging to the Polyxenidae family (Polyxenus spp. ) Millipede larvae are not of medical importance, but they cause panic among the residents and make them evacuate their homes. The source of their infestation was a leftover farmyard watering near the village. The number of larvae declined sharply and their activity decreased after conducting the control program. This program included physical control as well as spraying of the infested AREAs with permethrin and diazinon. Activity of larvae abruptly decreased and eventually they were removed from all infested homes. . .

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بازدید 142

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نویسندگان: 

اعظم آزاده منصوره

اطلاعات دوره: 
  • سال: 

    1388
  • دوره: 

    2
  • شماره: 

    2 (پیاپی 4- ویژه نامه شهر و محله)
  • صفحات: 

    30-54
تعامل: 
  • استنادات: 

    2
  • بازدید: 

    1207
  • دانلود: 

    0
چکیده: 

بسیاری از تحقیقات در حوزه انحرافات اجتماعی، تنها به رابطه بین طبقه اجتماعی و رفتار نابهنجار اجتماعی پرداخته و از نقش تعاملی طبقه اجتماعی و موقعیت منزلتی منطقه مسکونی در هیجانات اضطرابی به عنوان منشا بسیاری از واکنش های انحرافی غافل مانده اند. با این باور، مقاله حاضر سعی دارد ابتدا رابطه تعاملی اجتماعی و موقعیت منزلتی منطقه مسکونی را تبیین نماید و سپس نقش آن را در عواطف اضطرابی و یا رفتار ضداجتماعی توضیح دهد. عواطف اضطرابی یا کنش های ضد اجتماعی نوعی انزوا و انفعال اجتماعی است که در ادبیات جامعه شناختی با عنوان های از خود بیگانگی، ناتوانی، سردرگمی، ناامیدی و غیره شناخته شده است. رویکرد خاص این مطالعه، توزیع فضای شهری به عنوان یکی از مولفه ها و زمینه های اجتماعی در توضیح عواطف اضطرابی، در کنار سایر مولفه های ساختاری و روابط اجتماعی است که با استفاده از روش پیمایش و تکنیک پرسش نامه انجام گرفته است. نتایج نشان می دهد که نقش طبقه اجتماعی و موقعیت منطقه مسکونی، هر یک به تنهایی یا در تعامل با یکدیگر، در رابطه با عواطف اضطرابی انکارناپذیر است. بررسی عوامل ذکر شده می تواند تا حدودی در پیش بینی رفتارهای ضداجتماعی موثر باشد.

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

بازدید 1207

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نشریه: 

اقتصاد مالی

اطلاعات دوره: 
  • سال: 

    1402
  • دوره: 

    17
  • شماره: 

    4 (پیاپی 65)
  • صفحات: 

    357-376
تعامل: 
  • استنادات: 

    0
  • بازدید: 

    88
  • دانلود: 

    15
چکیده: 

این پژوهش جهت دستیابی به شناخت الگوی خرید مسکن و از طریق پژوهش کیفی با رویکرد مطالعه زمینه­ای برای دستیابی به هدف پژوهش استفاده شده است. نمونه گیری در مطالعه با روش گلوله برفی انجام گرفت و گردآوری اطلاعات با انجام 14 مصاحبه به اشباع رسید. جهت گردآوری اطلاعات با خریداران دنبال خانه، مصرف­کنندگان ساکن کمتر از 6 ماه، سازندگان و سرمایه گذاران، و معماران و طراحان مصاحبه شد. نتایج نشان داد الگوی خرید مسکن لوکس از دیدگاه سرمایه گذاران و سازندگان شامل 11 مقوله (تعیین محل ساخت، روند ساخت و ساز، بازده سرمایه گذاری، شرکای کاری، هزینه ساخت و ساز، اخذ جواز شهرداری، زمان ساخت و ساز، دوره اقتصادی ساخت و ساز، عوامل مؤثر در ترغیب به خرید، ویژگی خریداران، روند خرید و فروش در منطقه)؛ معماران و طراحان 4 مقوله (انتظارات خریدار، سبک طراحی معمار، ویژگی­های ساخت در منطقه، عوامل مؤثر در ترغیب به خرید)؛ مصرف کنندگان ساکن کمتر از 6 ماه 3 مقوله (رضایت از ساخت، اعمال تغییرات در خانه، انتظارات خریدار)؛ خریداران به دنبال خانه 4 مقوله (انتظارات خریدار، زمان خرید، نحوه انتخاب خانه، اعمال تغییرات در خانه) است.

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

بازدید 88

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اطلاعات دوره: 
  • سال: 

    1395
  • دوره: 

    24
تعامل: 
  • بازدید: 

    365
  • دانلود: 

    341
چکیده: 

لطفا برای مشاهده چکیده به متن کامل (PDF) مراجعه فرمایید.

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

بازدید 365

مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resourcesدانلود 341
نویسندگان: 

BALAKRISHNA GURUGUBELLI | PERVEZ SHAMSH

اطلاعات دوره: 
  • سال: 

    2011
  • دوره: 

    3
  • شماره: 

    1
  • صفحات: 

    80-88
تعامل: 
  • استنادات: 

    0
  • بازدید: 

    206
  • دانلود: 

    0
چکیده: 

The components and quantities of atmospheric dusts fallout has been reported to be the pollution indicator of large urban AREAs. The multiplicity and complexity of sources of atmospheric dusts in urban regions (e.g. industrial complexes composed of a variety of industrial processes, automobiles, construction activities etc.) has put forward the need of source apportionment of these sources indicating their contribution to specific environmental receptor. The study presented here is focused on investigation of source contribution estimates of dusts fallout in an urban-industrial AREA, Raipur, India. Six sampling sites have been identified on the basis of land use for development plan of anthropogenic activities and factors related to the transportation and dispersion pattern of atmospheric dusts.12 samples of dusts fallout has been collected from each site (one in each month) and subjected to chemical analysis of selected chemical constituents known as markers of selected major dust emitting sources (Steel making average, Road traffic-borne dusts, construction activities, municipal waste burning, and soils). Chemical profiles along with SPECIATE of USEPA has been used for the preparation of source profiles. Source apportionment has been done using Chemical Mass Balance (CMB 8). Good fit parameters and relative source contribution has been analyzed and documented. Variations in source contribution estimates of selected indicator species has been occurred and justify the significant contribution of local AREA and line sources of dusts emission in various parts of the study region. Soil has shown different contribution for different radical.

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

بازدید 206

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