In this study, the ratio of nuclear level densities with opposite parities was studied for 74Ge u... more In this study, the ratio of nuclear level densities with opposite parities was studied for 74Ge using the generalized, superfluid theory in many-body systems with considering a soft phase transition around critical temperature. With modified gap parameter, the ratio of nuclear level densities in the form of a smooth function tends to unity with increasing energy. Phase transition occurs at T≈1.1 MeV and at higher energies the approximation of equal parity distribution is applicable.
A common problem in sample-based surveys that are performed under operational constraints is how ... more A common problem in sample-based surveys that are performed under operational constraints is how to scale data collection procedures so as to guarantee an acceptable level of sampling efficiency. This problem constitutes a frequent concern of fishery administrations with limited budget and human resources. Generally, lack of any a priori guidance on sample size requirements tends to increase the size and complexity of field operations and this, in turn, has a direct impact on the logistical aspects of data collection and data management procedures. This study attempts to provide some answers to the above problem and proposes a supplementary practical tool for use in the design of sample-based fishery surveys.
The purpose of this study was to investigate the relationship between the coping styles, meta-cog... more The purpose of this study was to investigate the relationship between the coping styles, meta-cognitive beliefs and test anxiety by considering the mediating role of coping styles based on the Self-regulatory executive function in the university students. In 2010, 638 students of Tehran’s kharazmi University and Agricultural faculty of Tehran University were selected through Stratified sampling method from October to November. Students completed Coping Inventory for Stressful Situations of Endler and Parker, Test Anxiety Inventory, Metacognitions Questionnaire. In this study the correlational method was used. Spearman correlation test was used to determine the relationship between the variables and the path analysis method was used to determine the contribution of each component. The Results showed that the emotion-oriented and problem-oriented coping strategies had a mediating role in the relationship between the meta-cognition and test anxiety. But avoidance coping strategy had no...
The region of Khatoonabad with 78 square kilometer located NW of Iran. Its a part of Urumieh D... more The region of Khatoonabad with 78 square kilometer located NW of Iran. Its a part of Urumieh Dokhtar zone. Morphology is affected completely by main faults with W-E and NW-SE trends. ETM+ and Aster data used in remote sensing studies implies that general trend of the alteration is along the mentioned faults. Two types of mineralizatio n ha ve been recognized in this zone. The disseminated copper mineralization in volcanic units and copper and molybdenum mineralization in sub volcanic dacite porphyry stocks. There is accordance between results of satellite interpretation and aeromagnetic geophysical, structural, geochemistry and mineralization zones.
Background: Balance impairment is related to breast cancer treatments, such as radiation therapy ... more Background: Balance impairment is related to breast cancer treatments, such as radiation therapy and chemotherapy. The aim of the present study was to investigate the effect of six-week resistance training with Thera-Band and combined training (training with Thera-Band and core stability training) on static and dynamic balance in breast cancer survivors. Methods: In this randomized controlled trail, we divided 75 patients with breast cancer into three groups: 1) resistance training group (n=25, age= 46±5.82, BMI= 25.7±3.9), combined training group, (n=25, age= 48.9 ± 7.06, BMI=24.6 ± 3.5), and control group (n=25, age= 46±7.15, BMI= 25.17±3.7). Afterwards, we employed Single leg standing and Balance Error Scoring System (BESS) to measure the static balance; Four Square Step Test (FSST) and Timed Up and Go (TUG) were further used for dynamic balance in pre- and post-test. Exercise program was performed by two training groups for six weeks and three sessions per week. Resistance train...
Proceedings of the 2017 ACM on Conference on Information and Knowledge Management
The continuous improvement in connectivity, storage and data processing capabilities allow access... more The continuous improvement in connectivity, storage and data processing capabilities allow access to a data deluge from sensors, social-media, news, user-generated, government and private data sources. Accordingly, in a modern data-oriented landscape, with the advent of various data capture and management technologies, organizations are rapidly shifting to datafication of their processes. In such an environment, analysts may need to deal with a collection of datasets, from relational to NoSQL, that holds a vast amount of data gathered from various private/open data islands, i.e. Data Lake. Organizing, indexing and querying the growing volume of internal data and metadata, in a data lake, is challenging and requires various skills and experiences to deal with dozens of new databases and indexing technologies: How to store information items? What technology to use for persisting the data? How to deal with the large volume of streaming data? How to trace and persist information about data? What technology to use for indexing the data? How to query the data lake? To address the above mentioned challenges, we present CoreDB - an open source data lake service - which offers researchers and developers a single REST API to organize, index and query their data and metadata. CoreDB manages multiple database technologies and offers a built-in design for security and tracing.
Abstract A wind farm’s overall power production is significantly less than its nominal power, def... more Abstract A wind farm’s overall power production is significantly less than its nominal power, defined as the sum of the wind turbines’ rated outputs. The primary cause for this significant loss is the exposure of downstream wind turbines to the aerodynamic wake of their upstream counterparts. Wind farm layout optimization aims at minimizing such adverse effects by finding optimal wind turbine positions that are less exposed to the upstream wake. Over the past few years, researchers have extended their fight against adverse wake effects beyond the layout optimization, i.e., the design process, onto the control and operation process. Several active wake control strategies have been proposed and studied to decrease the power loss of downstream wind turbines by steering or weakening the upstream wakes. First, the article reviews these strategies, including yaw control, pitch control, torque control, tilt control, and finally, cone angle control. Then, it proposes a novel wake steering technique where passive stationary vanes redirect the upstream wake. The authors conducted scaled wind tunnel experiments to investigate the performance of the proposed concept. Using a 3D-printed wake deflector between two in-line turbines increased the downstream turbine’s power production by more than 15%, which is significant compared to the existing wake control strategies. The article concludes by comparing the proposed technology’s effectiveness against existing wake control techniques.
The current pandemic of the 2019 novel coronavirus (COVID-19) caused by SARS-CoV-2 (severe acute ... more The current pandemic of the 2019 novel coronavirus (COVID-19) caused by SARS-CoV-2 (severe acute respiratory syndrome coronavirus-2) has raised significant public health concern. Rapid, affordable, and accurate diagnostics of SARS-CoV-2 is essential for early treatment and control of the disease spread. In the past few years, CRISPR technology has shown great potential for highly sensitive and specific molecular diagnostics. Amid the ongoing COVID-19 pandemic, there is an increasing interest in implementing CRISPR-based diagnostic principles to develop fast and precise methods for detecting SARS-CoV-2. In this work, we reviewed and summarized these CRISPR-based diagnostic systems as well as their characteristics and challenges. We also provided future perspectives of CRISPR-based sensing towards point-of-care molecular diagnosis applications.
The state of world fisheries and aquaculture 1998 FOREWORD The idea of publishing The State of Wo... more The state of world fisheries and aquaculture 1998 FOREWORD The idea of publishing The State of World Fisheries and Aquaculture was conceived in 1995 in recognition of the growing demand for reliable information on the subject. Since there was no periodical providing a global and comprehensive view of the sector and covering policy issues, the FAO Fisheries Department decided to publish such a report every two years. The State of the World Fisheries and Aquaculture 1996 serves as a benchmark document, as it provides an initial overview of world fisheries and aquaculture and places the sector in a longer-term perspective by examining trends from 1950 to the present, while also looking ahead to the year 2010. While providing a similar overview, this issue of The State of World Fisheries and Aquaculture examines developments in the sector from the perspective of sustainability in fisheries and aquaculture. The report aims to shed light on the need for and effects of good governance in fisheries and aquaculture, while also highlighting two closely related issues: the establishment of an enabling environment for aquaculture activity and the integration of fisheries into coastal zone management. The principal purpose of The State of World Fisheries and Aquaculture is to inform policy-makers, participants in fisheries and civil society in an accurate and objective manner. Furthermore, by generating awareness of the global interaction inherent to the sector, it seeks to encourage managers and other decision-makers to learn from the experience of others. By doing so, we trust our report will contribute to national, regional and global efforts in ensuring responsible practices and sustainable development in fisheries and aquaculture.
Acute ischemic stroke (AIS) is the leading cause of mortality and disability worldwide. AIS occur... more Acute ischemic stroke (AIS) is the leading cause of mortality and disability worldwide. AIS occur while cerebral arteries become blocked by embolism or thrombosis. Aspiration thrombectomy is a promising interventional device to extract massive clots from occluded cerebral arteries. The aim of this article is to develop a computer-aided method to clarify the performance of aspiration catheter and identify the risks of aspiration for each specific AIS patient. In order to simulate the aspiration process, a three-dimensional fluid-structure interaction (FSI) method was developed. The blood clot was modeled as a porous media which composed of viscoelastic fibrin networks. The finite element method (FEM) was implemented to compute the blood flow dynamics in the simplified cerebral vessel. The introduced clot model was validated by comparing the numerical results with experimental data. Furthermore, the analytical solution of the flow through the partially porous pipe was considered to validate FEM. In this research, the performance of two model of the Penumbra aspiration catheter-4MAX and 5MAX-were were compared at three distinct suction pressures. The aspiration ratio of the clot, aspiration time, amount of free fragments, wall shear stress (WSS), and extracted volume of the blood were calculated to evaluate catheters performance. At suction pressure -50 kPa, the aspiration ratio of 5MAX catheter reached 86.58% within 1.36 s. However, in 4MAX case, aspiration ratio of 76.41% was achieved within 1.39. Also, 5MAX catheter created 6.11% fewer free fragments in comparison to 4MAX. Hence, the possibility of distal embolization of 4MAX model was greater. However, the risk of vessel wall rupture was higher in 5MAX by considering mean WSS.
The Agh-Dareh and Zarshouran mines are two known active gold deposits in Takab, NW Iran. In the p... more The Agh-Dareh and Zarshouran mines are two known active gold deposits in Takab, NW Iran. In the present study, the potentials of two species of Astragalus (A. microcephalus from Agh-Dareh and A. effusus from Zarshouran mines), as the dominant plants grown in these areas, were assessed for the bio-accumulation of the major, trace, and rare earth elements (REEs). The plant and soil samples were collected from the mining areas and analyzed by inductively coupled plasma-mass spectroscopy (ICP-MS). According to the results obtained, A. effusus in the Zarshouran mine passed a high ability in the accumulation of some major elements such as S, P, K, Ca, and Zn. Although the amounts of the examined trace elements in the soil samples were more than those in the shoots of both examined plants, the potential of A. microcephalus in the absorbance and translocation of Cd, U, Tl, and Pb was more than that for A. effusus. It became clear that the performance of A. microcephalus from the Agh-Dareh mine in the uptake and transportation of REEs was more than that for A. effusus from the Zarshouran mine; also both plant species absorbed and transported much more light REEs than heavy REEs did. According to the results obtained, the present study provides some geochemical findings about the substrate and leads to the increasing information about the plants as a useful indicator of metal mineralization.
The main purpose of this study is to compare the quality of life and mental health between addict... more The main purpose of this study is to compare the quality of life and mental health between addicts and non-addicts. It is a descriptive-analytic research. In order to choose 260 subjects as sample,we used from elective rout.. The "questionnaire for life quality" (SF-36) and SCL-90-R were used to collect data. Reaserch's data indicated that the two groups in terms of quality of life and its subscales were significantly different. Quality of life and mental health of addicts were lower than of non-addicts'. There was a significant positive correlation between quality of life and mental health in two groups. In general, this study shows that addicts live are in the worst condition and they need much help and support.
In this study, the ratio of nuclear level densities with opposite parities was studied for 74Ge u... more In this study, the ratio of nuclear level densities with opposite parities was studied for 74Ge using the generalized, superfluid theory in many-body systems with considering a soft phase transition around critical temperature. With modified gap parameter, the ratio of nuclear level densities in the form of a smooth function tends to unity with increasing energy. Phase transition occurs at T≈1.1 MeV and at higher energies the approximation of equal parity distribution is applicable.
A common problem in sample-based surveys that are performed under operational constraints is how ... more A common problem in sample-based surveys that are performed under operational constraints is how to scale data collection procedures so as to guarantee an acceptable level of sampling efficiency. This problem constitutes a frequent concern of fishery administrations with limited budget and human resources. Generally, lack of any a priori guidance on sample size requirements tends to increase the size and complexity of field operations and this, in turn, has a direct impact on the logistical aspects of data collection and data management procedures. This study attempts to provide some answers to the above problem and proposes a supplementary practical tool for use in the design of sample-based fishery surveys.
The purpose of this study was to investigate the relationship between the coping styles, meta-cog... more The purpose of this study was to investigate the relationship between the coping styles, meta-cognitive beliefs and test anxiety by considering the mediating role of coping styles based on the Self-regulatory executive function in the university students. In 2010, 638 students of Tehran’s kharazmi University and Agricultural faculty of Tehran University were selected through Stratified sampling method from October to November. Students completed Coping Inventory for Stressful Situations of Endler and Parker, Test Anxiety Inventory, Metacognitions Questionnaire. In this study the correlational method was used. Spearman correlation test was used to determine the relationship between the variables and the path analysis method was used to determine the contribution of each component. The Results showed that the emotion-oriented and problem-oriented coping strategies had a mediating role in the relationship between the meta-cognition and test anxiety. But avoidance coping strategy had no...
The region of Khatoonabad with 78 square kilometer located NW of Iran. Its a part of Urumieh D... more The region of Khatoonabad with 78 square kilometer located NW of Iran. Its a part of Urumieh Dokhtar zone. Morphology is affected completely by main faults with W-E and NW-SE trends. ETM+ and Aster data used in remote sensing studies implies that general trend of the alteration is along the mentioned faults. Two types of mineralizatio n ha ve been recognized in this zone. The disseminated copper mineralization in volcanic units and copper and molybdenum mineralization in sub volcanic dacite porphyry stocks. There is accordance between results of satellite interpretation and aeromagnetic geophysical, structural, geochemistry and mineralization zones.
Background: Balance impairment is related to breast cancer treatments, such as radiation therapy ... more Background: Balance impairment is related to breast cancer treatments, such as radiation therapy and chemotherapy. The aim of the present study was to investigate the effect of six-week resistance training with Thera-Band and combined training (training with Thera-Band and core stability training) on static and dynamic balance in breast cancer survivors. Methods: In this randomized controlled trail, we divided 75 patients with breast cancer into three groups: 1) resistance training group (n=25, age= 46±5.82, BMI= 25.7±3.9), combined training group, (n=25, age= 48.9 ± 7.06, BMI=24.6 ± 3.5), and control group (n=25, age= 46±7.15, BMI= 25.17±3.7). Afterwards, we employed Single leg standing and Balance Error Scoring System (BESS) to measure the static balance; Four Square Step Test (FSST) and Timed Up and Go (TUG) were further used for dynamic balance in pre- and post-test. Exercise program was performed by two training groups for six weeks and three sessions per week. Resistance train...
Proceedings of the 2017 ACM on Conference on Information and Knowledge Management
The continuous improvement in connectivity, storage and data processing capabilities allow access... more The continuous improvement in connectivity, storage and data processing capabilities allow access to a data deluge from sensors, social-media, news, user-generated, government and private data sources. Accordingly, in a modern data-oriented landscape, with the advent of various data capture and management technologies, organizations are rapidly shifting to datafication of their processes. In such an environment, analysts may need to deal with a collection of datasets, from relational to NoSQL, that holds a vast amount of data gathered from various private/open data islands, i.e. Data Lake. Organizing, indexing and querying the growing volume of internal data and metadata, in a data lake, is challenging and requires various skills and experiences to deal with dozens of new databases and indexing technologies: How to store information items? What technology to use for persisting the data? How to deal with the large volume of streaming data? How to trace and persist information about data? What technology to use for indexing the data? How to query the data lake? To address the above mentioned challenges, we present CoreDB - an open source data lake service - which offers researchers and developers a single REST API to organize, index and query their data and metadata. CoreDB manages multiple database technologies and offers a built-in design for security and tracing.
Abstract A wind farm’s overall power production is significantly less than its nominal power, def... more Abstract A wind farm’s overall power production is significantly less than its nominal power, defined as the sum of the wind turbines’ rated outputs. The primary cause for this significant loss is the exposure of downstream wind turbines to the aerodynamic wake of their upstream counterparts. Wind farm layout optimization aims at minimizing such adverse effects by finding optimal wind turbine positions that are less exposed to the upstream wake. Over the past few years, researchers have extended their fight against adverse wake effects beyond the layout optimization, i.e., the design process, onto the control and operation process. Several active wake control strategies have been proposed and studied to decrease the power loss of downstream wind turbines by steering or weakening the upstream wakes. First, the article reviews these strategies, including yaw control, pitch control, torque control, tilt control, and finally, cone angle control. Then, it proposes a novel wake steering technique where passive stationary vanes redirect the upstream wake. The authors conducted scaled wind tunnel experiments to investigate the performance of the proposed concept. Using a 3D-printed wake deflector between two in-line turbines increased the downstream turbine’s power production by more than 15%, which is significant compared to the existing wake control strategies. The article concludes by comparing the proposed technology’s effectiveness against existing wake control techniques.
The current pandemic of the 2019 novel coronavirus (COVID-19) caused by SARS-CoV-2 (severe acute ... more The current pandemic of the 2019 novel coronavirus (COVID-19) caused by SARS-CoV-2 (severe acute respiratory syndrome coronavirus-2) has raised significant public health concern. Rapid, affordable, and accurate diagnostics of SARS-CoV-2 is essential for early treatment and control of the disease spread. In the past few years, CRISPR technology has shown great potential for highly sensitive and specific molecular diagnostics. Amid the ongoing COVID-19 pandemic, there is an increasing interest in implementing CRISPR-based diagnostic principles to develop fast and precise methods for detecting SARS-CoV-2. In this work, we reviewed and summarized these CRISPR-based diagnostic systems as well as their characteristics and challenges. We also provided future perspectives of CRISPR-based sensing towards point-of-care molecular diagnosis applications.
The state of world fisheries and aquaculture 1998 FOREWORD The idea of publishing The State of Wo... more The state of world fisheries and aquaculture 1998 FOREWORD The idea of publishing The State of World Fisheries and Aquaculture was conceived in 1995 in recognition of the growing demand for reliable information on the subject. Since there was no periodical providing a global and comprehensive view of the sector and covering policy issues, the FAO Fisheries Department decided to publish such a report every two years. The State of the World Fisheries and Aquaculture 1996 serves as a benchmark document, as it provides an initial overview of world fisheries and aquaculture and places the sector in a longer-term perspective by examining trends from 1950 to the present, while also looking ahead to the year 2010. While providing a similar overview, this issue of The State of World Fisheries and Aquaculture examines developments in the sector from the perspective of sustainability in fisheries and aquaculture. The report aims to shed light on the need for and effects of good governance in fisheries and aquaculture, while also highlighting two closely related issues: the establishment of an enabling environment for aquaculture activity and the integration of fisheries into coastal zone management. The principal purpose of The State of World Fisheries and Aquaculture is to inform policy-makers, participants in fisheries and civil society in an accurate and objective manner. Furthermore, by generating awareness of the global interaction inherent to the sector, it seeks to encourage managers and other decision-makers to learn from the experience of others. By doing so, we trust our report will contribute to national, regional and global efforts in ensuring responsible practices and sustainable development in fisheries and aquaculture.
Acute ischemic stroke (AIS) is the leading cause of mortality and disability worldwide. AIS occur... more Acute ischemic stroke (AIS) is the leading cause of mortality and disability worldwide. AIS occur while cerebral arteries become blocked by embolism or thrombosis. Aspiration thrombectomy is a promising interventional device to extract massive clots from occluded cerebral arteries. The aim of this article is to develop a computer-aided method to clarify the performance of aspiration catheter and identify the risks of aspiration for each specific AIS patient. In order to simulate the aspiration process, a three-dimensional fluid-structure interaction (FSI) method was developed. The blood clot was modeled as a porous media which composed of viscoelastic fibrin networks. The finite element method (FEM) was implemented to compute the blood flow dynamics in the simplified cerebral vessel. The introduced clot model was validated by comparing the numerical results with experimental data. Furthermore, the analytical solution of the flow through the partially porous pipe was considered to validate FEM. In this research, the performance of two model of the Penumbra aspiration catheter-4MAX and 5MAX-were were compared at three distinct suction pressures. The aspiration ratio of the clot, aspiration time, amount of free fragments, wall shear stress (WSS), and extracted volume of the blood were calculated to evaluate catheters performance. At suction pressure -50 kPa, the aspiration ratio of 5MAX catheter reached 86.58% within 1.36 s. However, in 4MAX case, aspiration ratio of 76.41% was achieved within 1.39. Also, 5MAX catheter created 6.11% fewer free fragments in comparison to 4MAX. Hence, the possibility of distal embolization of 4MAX model was greater. However, the risk of vessel wall rupture was higher in 5MAX by considering mean WSS.
The Agh-Dareh and Zarshouran mines are two known active gold deposits in Takab, NW Iran. In the p... more The Agh-Dareh and Zarshouran mines are two known active gold deposits in Takab, NW Iran. In the present study, the potentials of two species of Astragalus (A. microcephalus from Agh-Dareh and A. effusus from Zarshouran mines), as the dominant plants grown in these areas, were assessed for the bio-accumulation of the major, trace, and rare earth elements (REEs). The plant and soil samples were collected from the mining areas and analyzed by inductively coupled plasma-mass spectroscopy (ICP-MS). According to the results obtained, A. effusus in the Zarshouran mine passed a high ability in the accumulation of some major elements such as S, P, K, Ca, and Zn. Although the amounts of the examined trace elements in the soil samples were more than those in the shoots of both examined plants, the potential of A. microcephalus in the absorbance and translocation of Cd, U, Tl, and Pb was more than that for A. effusus. It became clear that the performance of A. microcephalus from the Agh-Dareh mine in the uptake and transportation of REEs was more than that for A. effusus from the Zarshouran mine; also both plant species absorbed and transported much more light REEs than heavy REEs did. According to the results obtained, the present study provides some geochemical findings about the substrate and leads to the increasing information about the plants as a useful indicator of metal mineralization.
The main purpose of this study is to compare the quality of life and mental health between addict... more The main purpose of this study is to compare the quality of life and mental health between addicts and non-addicts. It is a descriptive-analytic research. In order to choose 260 subjects as sample,we used from elective rout.. The "questionnaire for life quality" (SF-36) and SCL-90-R were used to collect data. Reaserch's data indicated that the two groups in terms of quality of life and its subscales were significantly different. Quality of life and mental health of addicts were lower than of non-addicts'. There was a significant positive correlation between quality of life and mental health in two groups. In general, this study shows that addicts live are in the worst condition and they need much help and support.
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Papers by Reza Nouri