LIVIVO - Search results -

Search results

Result 1 - 10 of total 114

Search options

Article ; Online: Opinion Poll of Information Unit managers of Central Libraries of Government Universities within Metro-Tehran regarding Services offered by Rose System and Nasim Iman

Zahra Rahimi

Iranian Journal of Information Processing & Management, Vol 23, Iss 3, Pp 37-

2008 Volume 53

Abstract: ... that the population studied utilize the services, databases and e-journals offered by both rose system and nasim iman ... Iman was 1.77 indicating relative satisfaction with services. Among the principle reasons ...

Abstract	Using a descriptive survey methodology, the data was collected using a questionnaire and calling on the Information and Acquision unit managers in 15 government universities in metro-Tehran. Findings indicate that the population studied utilize the services, databases and e-journals offered by both rose system and nasim iman. Furthermore they are all partake in consortium purchases. Average means for Rose system was 1.78 and for Nasim Iman was 1.77 indicating relative satisfaction with services. Among the principle reasons for dissatisfaction were irregular increase of annual subscription fees to electronic resources, and failure to fully uphold the terms of contracts between these companies and the universities. To resolve these issues, the companies need first to draft a suitable policy for offering services fitting the needs of universities. These services should be offered at reasonable price. Secondly the relevant powers-that-be must facilitate the entry of third party agents into the competition or alternatively lay in the grounds to the universities to directly engage in consortium purchase from foreign publishers.
Keywords	Rose System. Nassim Iman ; Information Brokers ; Electronic Resources ; Electronic Databases ; Bibliography. Library science. Information resources ; Z
Subject code	302
Language	Persian
Publishing date	2008-04-01T00:00:00Z
Publisher	Iranian Research Institute for Information and Technology
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

Full text online

Full text

Inter-library loan at ZB MED

Your chosen title can be delivered directly to ZB MED Cologne location if you are registered as a user at ZB MED Cologne.

Article ; Online: The impact of gender, race, and ethnicity on bariatric surgery outcomes.

Rahimi, Ahmad Omid / Soliman, Diaa / Hsu, Chiu-Hsieh / Ghaderi, Iman

Surgery for obesity and related diseases : official journal of the American Society for Bariatric Surgery

2024

Abstract: Background: The rates of postoperative complications can vary among specific patient populations.: Objectives: The aim of this study is to examine how gender, race, and ethnicity can affect short-term postoperative complications in bariatric surgery ... ...

Abstract	Background: The rates of postoperative complications can vary among specific patient populations. Objectives: The aim of this study is to examine how gender, race, and ethnicity can affect short-term postoperative complications in bariatric surgery patients. Setting: United States. Methods: Patients who underwent bariatric surgery between the years 2016 and 2021 were included and stratified based on gender, race/ethnicity, and procedure type. The 30-day outcomes were assessed using Clavien-Dindo (CD) classification of III-V. Wilcoxon rank-sum test was performed to compare continuous variables among groups and Chi-squared test for categorical variables. Logistic regression was performed to examine the effects of gender, race/ethnicity on CD classification ≥ III complications by the procedure type. Results: A total of 975,642 bariatric surgery patients were included. Descriptive univariate analysis showed that CD ≥ III complications were higher among non-Hispanic blacks (NHB) and lowest in Hispanic patients, regardless of their gender, except in the duodenal switch DS group, where non-Hispanic whites (NHW) had the lowest complication rate. There was no difference between male and female patients with regards to postoperative complications, except in the sleeve gastrectomy (SG) group, where NHW males had more complications than NHW females. Sleeve gastrectomy showed the lowest complication rates followed by gastric bypass and DS in all groups. In multivariate logistic regression model, for both females and males NHBs had higher odds of postoperative complications compared to NHWs in sleeve gastrectomy (Female aOR:1.31, 95% CI: [1.23-1.40]; Male aOR:1.24, 95% CI: [1.08-1.43], P < .001) and gastric bypass (Female aOR:1.24, 95% CI: [1.16-1.33]; Male aOR:1.25, 95% CI: [1.06-1.48], P < .01). Conclusions: Non-Hispanic Black patients are at a higher rate of developing CD ≥ III complications compared to non-Hispanic Whites after bariatric surgery. The male gender was not a significant risk factor for serious postoperative complications. Among the different types of bariatric procedures, sleeve gastrectomy has the lowest rates of severe complications, followed by gastric bypass and duodenal switch. These results highlight the significance of considering gender, race, ethnicity, and procedure type during preoperative evaluation, surgical planning, and postoperative care.
Language	English
Publishing date	2024-01-08
Publishing country	United States
Document type	Journal Article
ZDB-ID	2274243-8
ISSN	1878-7533 ; 1550-7289
ISSN (online)	1878-7533
ISSN	1550-7289
DOI	10.1016/j.soard.2023.12.020
Database	MEDical Literature Analysis and Retrieval System OnLINE

In stock of ZB MED Cologne/Königswinter

Zs.A 6572: Show issues

Location:
Je nach Verfügbarkeit (siehe Angabe bei Bestand)
bis Jg. 2021: Bestellungen von Artikeln über das Online-Bestellformular
ab Jg. 2022: Lesesaal (EG)

Order via subito

This service is chargeable due to the Delivery terms set by subito. Orders including an article and supplementary material will be classified as separate orders. In these cases, fees will be demanded for each order.

Details ▾
- See ZB MED holdings
- Order with fees

Article ; Online: Efficient implicit constraint handling approaches for constrained optimization problems.

Rahimi, Iman / Gandomi, Amir H / Nikoo, Mohammad Reza / Mousavi, Mohsen / Chen, Fang

Scientific reports

2024 Volume 14, Issue 1, Page(s) 4816

Abstract: Many real-world optimization problems, particularly engineering ones, involve constraints that make finding a feasible solution challenging. Numerous researchers have investigated this challenge for constrained single- and multi-objective optimization ... ...

Abstract	Many real-world optimization problems, particularly engineering ones, involve constraints that make finding a feasible solution challenging. Numerous researchers have investigated this challenge for constrained single- and multi-objective optimization problems. In particular, this work extends the boundary update (BU) method proposed by Gandomi and Deb (Comput. Methods Appl. Mech. Eng. 363:112917, 2020) for the constrained optimization problem. BU is an implicit constraint handling technique that aims to cut the infeasible search space over iterations to find the feasible region faster. In doing so, the search space is twisted, which can make the optimization problem more challenging. In response, two switching mechanisms are implemented that transform the landscape along with the variables to the original problem when the feasible region is found. To achieve this objective, two thresholds, representing distinct switching methods, are taken into account. In the first approach, the optimization process transitions to a state without utilizing the BU approach when constraint violations reach zero. In the second method, the optimization process shifts to a BU method-free optimization phase when there is no further change observed in the objective space. To validate, benchmarks and engineering problems are considered to be solved with well-known evolutionary single- and multi-objective optimization algorithms. Herein, the proposed method is benchmarked using with and without BU approaches over the whole search process. The results show that the proposed method can significantly boost the solutions in both convergence speed and finding better solutions for constrained optimization problems.
Language	English
Publishing date	2024-02-27
Publishing country	England
Document type	Journal Article
ZDB-ID	2615211-3
ISSN	2045-2322 ; 2045-2322
ISSN (online)	2045-2322
ISSN	2045-2322
DOI	10.1038/s41598-024-54841-z
Database	MEDical Literature Analysis and Retrieval System OnLINE

Order via subito

Article ; Online: Lacticaseibacillus paracasei LB12, a Potential Probiotic Isolated from Traditional Iranian Fermented Milk (Doogh).

Dehghani Champiri, Iman / Bamzadeh, Zahra / Rahimi, Ebrahim / Rouhi, Leila

Current microbiology

2023 Volume 80, Issue 10, Page(s) 333

Abstract: In Iran, dairy-based fermented foods, like yogurt, cheese, fermented milk, buttermilk, kashk, butter, and Doogh are essential dietary components. Doogh is typically made using fermented yogurt or buttermilk. However, a literature review revealed a lack ... ...

Abstract	In Iran, dairy-based fermented foods, like yogurt, cheese, fermented milk, buttermilk, kashk, butter, and Doogh are essential dietary components. Doogh is typically made using fermented yogurt or buttermilk. However, a literature review revealed a lack of research on extracting probiotics from Doogh during processing. As dairy products contain lactic acid bacteria, the aim was to isolate and identify them using culture and PCR-sequencing techniques. Samples of traditional Doogh were collected throughout the Chaharmahal Bakhtiari province of Iran. A specific number of strains have been isolated and among them, the strain LB12 was selected for further characterization based on its probiotic properties. Probiotic properties like adhesion capability, antagonistic activity, resistance to the simulated stomach and intestinal fluids, pH, and bile salt were assessed according to National Standard ISO 19459 of Iran. The LB12 strain was identified as Lacticaseibacillus paracasei by partial 16 rDNA sequence analysis. This L. paracasei strain demonstrated its in vitro resilience to stomach conditions with 58.04% survival at pH 3 and more than 50% resistance to different bile salt concentrations. L. paracasei LB12 showed a cell surface hydrophobicity of 38.18% and a 6.2 log CFU/ml resistance to simulated gastric and intestinal fluids, and a rate of auto- and co-aggregation of 15% and 22%, respectively. L. parasei LB12 showed also a moderate adhesion to HT-29 cell line. In conclusion, L. paracasei LB12 is considered a promising potential probiotic suitable for the development of food supplement and pharmaceutical products.
MeSH term(s)	Animals ; Milk ; Iran ; Lacticaseibacillus ; Probiotics ; Bile Acids and Salts
Chemical Substances	Bile Acids and Salts
Language	English
Publishing date	2023-09-02
Publishing country	United States
Document type	Review ; Journal Article
ZDB-ID	134238-1
ISSN	1432-0991 ; 0343-8651
ISSN (online)	1432-0991
ISSN	0343-8651
DOI	10.1007/s00284-023-03376-z
Database	MEDical Literature Analysis and Retrieval System OnLINE

In stock of ZB MED Cologne/Königswinter

Zs.A 1446: Show issues

Location:
Je nach Verfügbarkeit (siehe Angabe bei Bestand)
bis Jg. 1994: Bestellungen von Artikeln über das Online-Bestellformular
Jg. 1995 - 2021: Lesesall (1.OG)
ab Jg. 2022: Lesesaal (EG)

Order via subito

Details ▾
- See ZB MED holdings
- Order with fees

Article: Feasibility study of using renewable energies in Iranian Seas: A comparative study

Nematian, Javad / Rahimi, Iman

Renewable energy. 2022 Apr., v. 189

2022

Abstract: Global economy is developing rapidly and consequently energy requirements has been focused, particularly in developing countries. There are potentials of using renewable energies in the cities and Islands located in Iranian Seas. In this study, five ... ...

Abstract	Global economy is developing rapidly and consequently energy requirements has been focused, particularly in developing countries. There are potentials of using renewable energies in the cities and Islands located in Iranian Seas. In this study, five locations in the Persian Gulf and the Gulf of Oman, combining of wind and solar energies have been considered. This paper evaluates the best locations for using different renewable energies in some important cities in the south of Iran. The paper presents a comparative study among different hybrid renewable energies (Wind and Solar) in five cities of Iran located in the coast of the Persian Gulf and the Gulf of Oman namely, Kish Island, Qeshm Island, Chabahar, Jask, and Genaveh. To evaluate the feasibility of using renewable energies in the above-mentioned locations, four types of building namely; hospital, large hotel, medium office, and strip mall have been analyzed. HOMER Software has been used to analyze and optimize different configurations. Considering the load profiles of chosen cases, the optimum solution for different configuration along with cost summary is obtained and analyzed. The simulation results presents that Kish Island owns the most load profile among other cities and PV-Diesel-Battery-Converter is the most suitable hybrid system, which possesses the optimum cost for the considered buildings. Moreover, Chabahar has mostly the most amount of carbon emission for the proposed case studies and owns the maximum lowest cost system among all considered cities except in the case of large hotel where Jask has the maximum initial capital cost.
Keywords	capital costs ; carbon ; coasts ; comparative study ; computer software ; energy ; feasibility studies ; hospitality industry ; hospitals ; wind ; Iran ; Oman ; Persian Gulf
Language	English
Dates of publication	2022-04
Size	p. 383-391.
Publishing place	Elsevier Ltd
Document type	Article
ZDB-ID	2001449-1
ISSN	1879-0682 ; 0960-1481
ISSN (online)	1879-0682
ISSN	0960-1481
DOI	10.1016/j.renene.2022.02.109
Database	NAL-Catalogue (AGRICOLA)

Order via subito

Article ; Online: Near-IR Light-Tunable Omnidirectional Broadband Terahertz Wave Antireflection Based on a PEDOT:PSS/Graphene Hybrid Coating.

Lai, Weien / Liu, Gen / Gou, Hanguang / Wu, Huizhen / Rahimi-Iman, Arash

ACS applied materials & interfaces

2022 Volume 14, Issue 38, Page(s) 43868–43876

Abstract: Omnidirectional broadband terahertz (THz) antireflection (AR) with an actively configurable coating promises the achievement of next-generation efficient and versatile THz components with high performance. We demonstrate a near-infrared (NIR) light- ... ...

Abstract	Omnidirectional broadband terahertz (THz) antireflection (AR) with an actively configurable coating promises the achievement of next-generation efficient and versatile THz components with high performance. We demonstrate a near-infrared (NIR) light-tunable and omnidirectional broadband THz AR coating based on an impedance matching method and composed of a poly(3,4-ethylenedioxythiophene):polystyrene sulfonate (PEDOT:PSS)/graphene composite film. The omnidirectional broadband properties of the active AR coating can be efficiently achieved by tunable NIR optical excitation of less than 0.27 W·cm
Language	English
Publishing date	2022-09-15
Publishing country	United States
Document type	Journal Article
ISSN	1944-8252
ISSN (online)	1944-8252
DOI	10.1021/acsami.2c10186
Database	MEDical Literature Analysis and Retrieval System OnLINE

Order via subito

Inter-library loan at ZB MED

Your chosen title can be delivered directly to ZB MED Cologne location if you are registered as a user at ZB MED Cologne.

Article ; Online: Laser Vision Correction after Radial Keratotomy: A Systematic Review and Meta-analysis.

Koosha, Nima / Riazi, Mir-Siamak / Janfaza, Parisa / Mohammadbeigy, Iman / Rahimi, Alireza / Khoshali, Mehri / Pourazizi, Mohsen / Peyman, Alireza

Journal of cataract and refractive surgery

2024

Abstract: Laser vision correction for residual refractive errors in patients with previous radial keratotomy (RK) presents a challenging task. Different techniques have been used with varying outcomes. This study aimed to systematically review published ... ...

Abstract	Laser vision correction for residual refractive errors in patients with previous radial keratotomy (RK) presents a challenging task. Different techniques have been used with varying outcomes. This study aimed to systematically review published manuscripts on refractive surgeries in post-RK patients search in PubMed, Scopus, and Web of Science. The final analysis included 35 studies that described a total of 888 eyes. Our systematic review and meta-analysis demonstrated a significant improvement in uncorrected distance visual acuity (UDVA) for photorefractive keratectomy, topography-guided-PRK, wavefront-guided-PRK, and femtosecond- laser-assisted in situ keratomileusis (LASIK), while mechanical microkeratome LASIK did not yield such significant improvements. Moreover, our results suggest that hyperopic post-RK patients had a significant improvement in UDVA, whereas no such improvement was observed in myopic patients.
Language	English
Publishing date	2024-02-14
Publishing country	United States
Document type	Journal Article
ZDB-ID	632744-8
ISSN	1873-4502 ; 0886-3350
ISSN (online)	1873-4502
ISSN	0886-3350
DOI	10.1097/j.jcrs.0000000000001426
Database	MEDical Literature Analysis and Retrieval System OnLINE

In stock of ZB MED Cologne/Königswinter

Zs.A 1806: Show issues

Location:
Je nach Verfügbarkeit (siehe Angabe bei Bestand)
bis Jg. 1994: Bestellungen von Artikeln über das Online-Bestellformular
Jg. 1995 - 2021: Lesesall (1.OG)
ab Jg. 2022: Lesesaal (EG)

Order via subito

Details ▾
- See ZB MED holdings
- Order with fees

Article ; Online: Continuously-tunable light-matter coupling in optical microcavities with 2D semiconductors.

Wall, Franziska / Mey, Oliver / Schneider, Lorenz Maximilian / Rahimi-Iman, Arash

Scientific reports

2020 Volume 10, Issue 1, Page(s) 8303

Abstract: A theoretical variation between the two distinct light-matter coupling regimes, namely weak and strong coupling, becomes uniquely feasible in open optical Fabry-Pérot microcavities with low mode volume, as discussed here. In combination with monolayers ... ...

Abstract	A theoretical variation between the two distinct light-matter coupling regimes, namely weak and strong coupling, becomes uniquely feasible in open optical Fabry-Pérot microcavities with low mode volume, as discussed here. In combination with monolayers of transition-metal dichalcogenides (TMDCs) such as WS
Language	English
Publishing date	2020-05-19
Publishing country	England
Document type	Journal Article
ZDB-ID	2615211-3
ISSN	2045-2322 ; 2045-2322
ISSN (online)	2045-2322
ISSN	2045-2322
DOI	10.1038/s41598-020-64909-1
Database	MEDical Literature Analysis and Retrieval System OnLINE

Order via subito

Article ; Online: MicroRNAs as the critical regulators of tumor angiogenesis in liver cancer.

Fanoodi, Ali / Maharati, Amirhosein / Akhlaghipour, Iman / Rahimi, Hamid Reza / Moghbeli, Meysam

Pathology, research and practice

2023 Volume 251, Page(s) 154913

Abstract: Liver cancer is one of the most common malignancies in human digestive system. Despite the recent therapeutic methods, there is a high rate of mortality among liver cancer patients. Late diagnosis in the advanced tumor stages can be one of the main ... ...

Abstract	Liver cancer is one of the most common malignancies in human digestive system. Despite the recent therapeutic methods, there is a high rate of mortality among liver cancer patients. Late diagnosis in the advanced tumor stages can be one of the main reasons for the poor prognosis in these patients. Therefore, investigating the molecular mechanisms of liver cancer can be helpful for the early stage tumor detection and treatment. Vascular expansion in liver tumors can be one of the important reasons for poor prognosis and aggressiveness. Therefore, anti-angiogenic drugs are widely used in liver cancer patients. MicroRNAs (miRNAs) have key roles in the regulation of angiogenesis in liver tumors. Due to the high stability of miRNAs in body fluids, these factors are widely used as the non-invasive diagnostic and prognostic markers in cancer patients. Regarding, the importance of angiogenesis during liver tumor growth and invasion, in the present review, we discussed the role of miRNAs in regulation of angiogenesis in these tumors. It has been reported that miRNAs mainly exert an anti-angiogenic function by regulation of tumor microenvironment, transcription factors, and signaling pathways in liver tumors. This review can be an effective step to suggest the miRNAs for the non-invasive early detection of malignant and invasive liver tumors.
MeSH term(s)	Humans ; MicroRNAs/genetics ; MicroRNAs/metabolism ; Liver Neoplasms/genetics ; Neovascularization, Pathologic/genetics ; Signal Transduction ; Biomarkers, Tumor/genetics ; Biomarkers, Tumor/metabolism ; Gene Expression Regulation, Neoplastic ; Tumor Microenvironment
Chemical Substances	MicroRNAs ; Biomarkers, Tumor
Language	English
Publishing date	2023-10-29
Publishing country	Germany
Document type	Journal Article ; Review
ZDB-ID	391889-0
ISSN	1618-0631 ; 0344-0338
ISSN (online)	1618-0631
ISSN	0344-0338
DOI	10.1016/j.prp.2023.154913
Database	MEDical Literature Analysis and Retrieval System OnLINE

In stock of ZB MED Cologne/Königswinter

Ud III Zs.20: Show issues

Location:
Je nach Verfügbarkeit (siehe Angabe bei Bestand)
bis Jg. 2021: Bestellungen von Artikeln über das Online-Bestellformular
ab Jg. 2022: Lesesaal (EG)

Order via subito

Details ▾
- See ZB MED holdings
- Order with fees

Article: A review on COVID-19 forecasting models.

Rahimi, Iman / Chen, Fang / Gandomi, Amir H

Neural computing & applications

2021 , Page(s) 1–11

Abstract: The novel coronavirus (COVID-19) has spread to more than 200 countries worldwide, leading to more than 36 million confirmed cases as of October 10, 2020. As such, several machine learning models that can forecast the outbreak globally have been released. ...

Abstract	The novel coronavirus (COVID-19) has spread to more than 200 countries worldwide, leading to more than 36 million confirmed cases as of October 10, 2020. As such, several machine learning models that can forecast the outbreak globally have been released. This work presents a review and brief analysis of the most important machine learning forecasting models against COVID-19. The work presented in this study possesses two parts. In the first section, a detailed scientometric analysis presents an influential tool for bibliometric analyses, which were performed on COVID-19 data from the Scopus and Web of Science databases. For the above-mentioned analysis, keywords and subject areas are addressed, while the classification of machine learning forecasting models, criteria evaluation, and comparison of solution approaches are discussed in the second section of the work. The conclusion and discussion are provided as the final sections of this study.
Language	English
Publishing date	2021-02-04
Publishing country	England
Document type	Journal Article ; Review
ZDB-ID	1480526-1
ISSN	1433-3058 ; 0941-0643
ISSN (online)	1433-3058
ISSN	0941-0643
DOI	10.1007/s00521-020-05626-8
Database	MEDical Literature Analysis and Retrieval System OnLINE

Full text online

Accessible to users with ZB MED library card

Order via subito

Details ▾
- Full text online
- Order with fees

To top

Full text online

More links

Kategorien

Inter-library loan at ZB MED

More links

Kategorien

In stock of ZB MED Cologne/Königswinter

Order via subito

More links

Kategorien

Order via subito

More links

Kategorien

In stock of ZB MED Cologne/Königswinter

Order via subito

More links

Kategorien

Order via subito

More links

Kategorien

Order via subito

Inter-library loan at ZB MED

More links

Kategorien

In stock of ZB MED Cologne/Königswinter

Order via subito

More links

Kategorien

Order via subito

More links

Kategorien

In stock of ZB MED Cologne/Königswinter

Order via subito

Full text online

More links

Kategorien

Order via subito