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Old vs new: Risk factors predicting early onset colorectal cancer 被引量:8
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作者 Aslam R Syed payal Thakkar +4 位作者 Zachary D Horne Heitham Abdul-Baki Gursimran Kochhar Katie Farah Shyam Thakkar 《World Journal of Gastrointestinal Oncology》 SCIE CAS 2019年第11期1011-1020,共10页
BACKGROUND Colorectal cancer(CRC)is the second leading cause of all cancer related deaths in the United States and Europe.Although the incidence has been decreasing for individuals’≥50,it has been on the rise for in... BACKGROUND Colorectal cancer(CRC)is the second leading cause of all cancer related deaths in the United States and Europe.Although the incidence has been decreasing for individuals’≥50,it has been on the rise for individuals<50.AIM To identify potential risk factors for early-onset CRC.METHODS A population-based cohort analysis using a national database,Explorys,screened all patients with an active electronic medical record from January 2012 to December 2016 with a diagnosis of CRC.Subgroups were stratified based on age(25–49 years vs≥50 years).Demographics,comorbidities,and symptom profiles were recorded and compared between both age groups.Furthermore,the younger group was also compared with a control group consisting of individuals aged 25-49 years within the same timeframe without a diagnosis of CRC.Twentydata points for CRC related factors were analyzed to identify potential risk factors specific to early-onset CRC.RESULTS A total of 68860 patients were identified with CRC,of which 5710(8.3%)were younger than 50 years old,with 4140(73%)between 40-49 years of age.Multivariable analysis was reported using odds ratio(OR)with 95%CI and demonstrated that several factors were associated with an increased risk of CRC in the early-onset group versus the later-onset group.These factors included:African-American race(OR 1.18,95%CI:1.09-1.27,P<0.001),presenting symptoms of abdominal pain(OR 1.82,95%CI:1.72-1.92,P<0.001),rectal pain(OR 1.50,95%CI:1.28-1.77,P<0.001),altered bowel function(OR 1.12,95%CI:1.05-1.19,P=0.0005),having a family history of any cancer(OR 1.78,95%CI:1.67-1.90,P<0.001),gastrointestinal(GI)malignancy(OR 2.36,95%CI:2.18-2.55,P<0.001),polyps(OR 1.41,95%CI:1.08-1.20,P<0.001),and obesity(OR 1.14,95%CI:1.08-1.20,P<0.001).Comparing the early-onset cohort versus the control group,factors that were associated with an increased risk of CRC were:male gender(OR 1.34,95%CI:1.27-1.41),P<0.001),Caucasian(OR 1.48,95%CI:1.40-1.57,P<0.001)and African-American race(OR 1.25,95%CI:1.17-1.35,P<0.001),presenting 展开更多
关键词 COLORECTAL CANCER EARLY-ONSET COLORECTAL CANCER COLORECTAL CANCER SCREENING EPIDEMIOLOGY analysis COLORECTAL NEOPLASM Average-risk SCREENING
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Natural isothiocyanates of the genus Capparis as potential agonists of apoptosis and antitumor agents:Mechanisms and implications
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作者 Nabil Eid payal Bhatnagar 《World Journal of Pharmacology》 2024年第1期1-7,共7页
In this editorial,we comment on a recent publication,which highlights the important findings from the study,including the antitumor and anti-inflammatory effects of isothiocyanates,their underlying mechanisms,and impl... In this editorial,we comment on a recent publication,which highlights the important findings from the study,including the antitumor and anti-inflammatory effects of isothiocyanates,their underlying mechanisms,and implications.Additionally,a related perspective is discussed. 展开更多
关键词 Cancer ISOTHIOCYANATES Genus Capparis APOPTOSIS AUTOPHAGY INFLAMMATION GC/MS analysis
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Crystal structure and luminescence dynamics of highly pure LiM(PO_(3))_(3):Eu^(3+)(M=Sr,Ca) red phosphors for white light emitting diodes
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作者 payal Khajuria M.Manhas +3 位作者 A.K.Bedyal Ankush Vij H.C.Swart Vinay Kumar 《Journal of Rare Earths》 SCIE EI CAS CSCD 2024年第8期1470-1478,I0002,共10页
Highly pure red phosphors LiM(PO_(3))_(3):Eu^(3+)(M=Sr,Ca) doped with Eu^(3+)(1 mol%) were synthesized via solution combustion method and their crystal structure and luminescence dynamics were studied to explore its s... Highly pure red phosphors LiM(PO_(3))_(3):Eu^(3+)(M=Sr,Ca) doped with Eu^(3+)(1 mol%) were synthesized via solution combustion method and their crystal structure and luminescence dynamics were studied to explore its suitability in white light emitting diodes.The Rietveld refinement analysis of the powder Xray diffraction patterns reveals that the phosphors belong to the pure triclinic phase of LiSr(PO_(3))_(3) and LiCa(PO_(3)) with space group P-1(2).The scanning electron microscopy images showed the agglomerated morphology.The photoluminescence emission spectra under 393 nm show an orange band at 594 nm and a red band at 613 nm ascribed to ^(5)D_(0)→^(7)F_(1).^(5)D_(0)→^(7)F_(2) transitions of Eu^(3+)ion in both the phosphors.Moreover,the spectroscopic properties such as luminescence behaviour,and Stark splitting were used to examine the symmetry of Eu^(3+)ions in LiM(PO_(3))_(3):Es^(3+)(M=Sr,Ca) phosphors in terms of distortion induced upon doping.The Stark splitting shows that the actual site symmetry for Eu^(3+)ion was estimated to be D_(2) type for both phosphors.The photometric properties of LiCa(PO_(3))_(3):Eu^(3+)such as Commission International de l'Eclairage coordinates(x=0.64,y=0.36) near to the standard one(red),high color purity(95%) and higher brightness reveal that the phosphor has the capability of acting as a red component in n-UV white light emitting diodes. 展开更多
关键词 Photoluminescence PHOSPHATE WLEDs Stark splitting Rare earths
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Double-balloon enteroscopy-assisted dilatation avoids surgery for small bowel strictures: A systematic review 被引量:6
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作者 Judith E Baars Ruben Theyventhiran +2 位作者 Patrick Aepli payal Saxena Arthur J Kaffes 《World Journal of Gastroenterology》 SCIE CAS 2017年第45期8073-8081,共9页
AIM To evaluate the therapeutic role of double-balloon enteroscopy(DBE) in small bowel strictures and to propose a standard approach to small bowel strictures.METHODS Systematic review of studies involving DBE in pati... AIM To evaluate the therapeutic role of double-balloon enteroscopy(DBE) in small bowel strictures and to propose a standard approach to small bowel strictures.METHODS Systematic review of studies involving DBE in patients with small bowel strictures. Only studies limited to small bowel strictures were included and those with ileo-colonic strictures were excluded. RESULTS In total 13 studies were included,in which 310 patients were dilated. The average follow-up time was 31.8 mo per patient. The complication rate was 4.8% per patient and 2.6% per dilatation. Surgery was avoided in 80% of patients. After the first dilatation,46% were treated with re-dilatation and only 17% required surgery.CONCLUSION DBE-assisted dilatation avoids surgery in 80% of patients with small bowel strictures and is safe and effective. We propose a standardized approach to small bowel strictures. 展开更多
关键词 Double-ballloon enteroscopy DILATATION Small bowel stricture ENTEROSCOPY Crohn's disease Systematic review
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Targeting brain tumors with innovative nanocarriers:bridging the gap through the blood-brain barrier
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作者 KARAN WADHWA payal CHAUHAN +7 位作者 SHOBHIT KUMAR RAKESH PAHWA RAVINDER VERMA RAJAT GOYAL GOVIND SINGH ARCHANA SHARMA NEHA RAO DEEPAK KAUSHIK 《Oncology Research》 SCIE 2024年第5期877-897,共21页
Background:Glioblastoma multiforme(GBM)is recognized as the most lethal and most highly invasive tumor.The high likelihood of treatment failure arises fromthe presence of the blood-brain barrier(BBB)and stemcells arou... Background:Glioblastoma multiforme(GBM)is recognized as the most lethal and most highly invasive tumor.The high likelihood of treatment failure arises fromthe presence of the blood-brain barrier(BBB)and stemcells around GBM,which avert the entry of chemotherapeutic drugs into the tumormass.Objective:Recently,several researchers have designed novel nanocarrier systems like liposomes,dendrimers,metallic nanoparticles,nanodiamonds,and nanorobot approaches,allowing drugs to infiltrate the BBB more efficiently,opening up innovative avenues to prevail over therapy problems and radiation therapy.Methods:Relevant literature for this manuscript has been collected from a comprehensive and systematic search of databases,for example,PubMed,Science Direct,Google Scholar,and others,using specific keyword combinations,including“glioblastoma,”“brain tumor,”“nanocarriers,”and several others.Conclusion:This review also provides deep insights into recent advancements in nanocarrier-based formulations and technologies for GBM management.Elucidation of various scientific advances in conjunction with encouraging findings concerning the future perspectives and challenges of nanocarriers for effective brain tumor management has also been discussed. 展开更多
关键词 GLIOBLASTOMA Brain tumor Blood-brain barrier Liposomes Metallic nanoparticles NANOCARRIERS
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Promising drug targets and associated therapeutic interventions in Parkinson's disease 被引量:5
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作者 Sachchida Nand Rai payal Singh +4 位作者 Ritu Varshney Vivek K.Chaturvedi Emanuel Vamanu M.P.Singh Brijesh Kumar Singh 《Neural Regeneration Research》 SCIE CAS CSCD 2021年第9期1730-1739,共10页
Parkinson's disease(PD) is one of the most debilitating brain diseases. Despite the availability of symptomatic treatments, response towards the health of PD patients remains scarce. To fulfil the medical needs of... Parkinson's disease(PD) is one of the most debilitating brain diseases. Despite the availability of symptomatic treatments, response towards the health of PD patients remains scarce. To fulfil the medical needs of the PD patients, an efficacious and etiological treatment is required. In this review, we have compiled the information covering limitations of current therapeutic options in PD, novel drug targets for PD, and finally, the role of some critical beneficial natural products to control the progression of PD. 展开更多
关键词 DOPAMINE EPIGENETICS gene therapies glutamate receptor LEVODOPA molecular chaperones monoamine oxidase B mucuna alpha-synuclein Parkinson's disease STRIATUM substantia nigra
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Artificial Neural Network-Based Development of an Efficient Energy Management Strategy for Office Building
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作者 payal Soni J.Subhashini 《Intelligent Automation & Soft Computing》 SCIE 2023年第7期1225-1242,共18页
In the current context,a smart grid has replaced the conventional grid through intelligent energy management,integration of renewable energy sources(RES)and two-way communication infrastructures from power gen-eration... In the current context,a smart grid has replaced the conventional grid through intelligent energy management,integration of renewable energy sources(RES)and two-way communication infrastructures from power gen-eration to distribution.Energy management from the distribution side is a critical problem for balancing load demand.A unique energy manage-ment strategy(EMS)is being developed for office building equipment.That includes renewable energy integration,automation,and control based on the Artificial Neural Network(ANN)system using Matlab Simulink.This strategy reduces electric power consumption and balances the load demand of the traditional grid.This strategy is developed by taking inputs from an office building electricity consumption behavior study,a power generation study of a solar photovoltaic system,and the supply pattern of a grid in peak and non-peak hours.All this is done in consideration of the Indian scenario,where real-time data of month-wise ANN-based intelligent switching has been established for intermittent renewable sources and peak load reduction,as well as average load reduction,has been demonstrated along with the power control loop without the battery system. 展开更多
关键词 HVAC ANN demand response power consumption smart grid Weather and temperature OCCUPANCY EMS
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Evaluating Partitioning Based Clustering Methods for Extended Non-negative Matrix Factorization (NMF)
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作者 Neetika Bhandari payal Pahwa 《Intelligent Automation & Soft Computing》 SCIE 2023年第2期2043-2055,共13页
Data is humongous today because of the extensive use of World WideWeb, Social Media and Intelligent Systems. This data can be very important anduseful if it is harnessed carefully and correctly. Useful information can... Data is humongous today because of the extensive use of World WideWeb, Social Media and Intelligent Systems. This data can be very important anduseful if it is harnessed carefully and correctly. Useful information can beextracted from this massive data using the Data Mining process. The informationextracted can be used to make vital decisions in various industries. Clustering is avery popular Data Mining method which divides the data points into differentgroups such that all similar data points form a part of the same group. Clusteringmethods are of various types. Many parameters and indexes exist for the evaluationand comparison of these methods. In this paper, we have compared partitioningbased methods K-Means, Fuzzy C-Means (FCM), Partitioning AroundMedoids (PAM) and Clustering Large Application (CLARA) on secure perturbeddata. Comparison and identification has been done for the method which performsbetter for analyzing the data perturbed using Extended NMF on the basis of thevalues of various indexes like Dunn Index, Silhouette Index, Xie-Beni Indexand Davies-Bouldin Index. 展开更多
关键词 Clustering CLARA Davies-Bouldin index Dunn index FCM intelligent systems K-means non-negative matrix factorization(NMF) PAM privacy preserving data mining Silhouette index Xie-Beni index
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Demographic and risk characteristics of healthcare workers infected with SARS-CoV-2 from two tertiary care hospitals in the United Arab Emirates
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作者 Prashant Nasa payal Modi +3 位作者 Gladys Setubal Aswini Puspha Surjya Upadhyay Syed Habib Talal 《World Journal of Virology》 2023年第2期122-131,共10页
BACKGROUND Understanding the transmission dynamics of severe acute respiratory syndrome coronavirus 2(SARS-CoV-2)infection among healthcare workers(HCWs)and their social contacts is crucial to plan appropriate risk-re... BACKGROUND Understanding the transmission dynamics of severe acute respiratory syndrome coronavirus 2(SARS-CoV-2)infection among healthcare workers(HCWs)and their social contacts is crucial to plan appropriate risk-reduction measures.AIM To analyze the socio-demographic risk factors and transmission of SARS-CoV-2 infection among HCWs in two tertiary care hospitals in Dubai,United Arab Emirates.METHODS The demographic and clinical characteristics were available for all HCWs in both facilities from the human resources department.A cross-sectional survey was conducted from January-April 2022 among HCWs who tested positive through Reverse Transcriptase Polymerase Chain Reaction of the nasopharyngeal swab for SARS-CoV-2 between March 2020 and August 2021 in two tertiary-level hospitals.The survey included questions on demographics,work profile,characteristics of coronavirus disease 2019(COVID-19),and infection among their household or co-workers.The survey also checked the knowledge and perception of participants on the infection prevention measures related to SARS-CoV-2.RESULTS Out of a total of 346 HCWs infected with SARS-CoV-2,286(82.7%)HCWs consented to participate in this study.From the sample population,150(52.5%)of participants were female,and a majority(230,80.4%)were frontline HCWs,including 121 nurses(121,42.4%).Only 48(16.8%)participants were fully vaccinated at the time of infection.Most infected HCWs(85%)were unaware of any unprotected exposure and were symptomatic at the time of testing(225,78.7%).Nearly half of the participants(140,49%)had co-infection among household,and nearly one-third(29.5%)had coinfection among three or more household.Another 108(37.8%)participants reported crossinfection among co-workers.The frontline HCWs were significantly more infected(25.1%vs 8.6%,P<0.001)compared to non-frontline HCWs.Another significant risk factor for a high infection rate was male sex(P<0.001).Among the infected frontline HCWs,a significantly higher proportion were male and shared accommodation with family 展开更多
关键词 Coronavirus disease 2019 Risk factors Disease transmission infectious Infectious disease transmission Professional-to-patient Health personnel Socioeconomic factors
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Effect of Resonance on the Motion of Two Cylindrical Rigid Bodies
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作者 M. R. Hassan Baby Kumari +2 位作者 Md. Aminul Hassan payal Singh B. K. Sharma 《International Journal of Astronomy and Astrophysics》 2016年第4期555-574,共20页
The effect of resonance on the motion of two cylindrical rigid bodies has been studied in the light of Bhatnagar [1] [2] [3] and under some defined axiomatic restrictions. Here we have calculated variation in Eulerian... The effect of resonance on the motion of two cylindrical rigid bodies has been studied in the light of Bhatnagar [1] [2] [3] and under some defined axiomatic restrictions. Here we have calculated variation in Eulerian angles due to resonance in terms of orbital elements and unperturbed Eulerian angles. 展开更多
关键词 Inertia Ellipsoid Ellipsoids of Revolution Symmetrical Bodies Orientation of the Bodies Principal Axes Eulerian Angles Critical Points Perturbations Averaging of Hamiltonian RESONANCE
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Management of polytrauma patients in emergency department:An experience of a tertiary care health institution of northern India 被引量:2
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作者 Puri payal Goel Sonu +1 位作者 Gupta Anil K Verma Prachi 《World Journal of Emergency Medicine》 CAS 2013年第1期15-19,共5页
BACKGROUND:In a tertiary care institute of northern India,the emergency department receives an average of 6-7 patients with poly trauma every day.Of these patients,some come directly and many are referred from other h... BACKGROUND:In a tertiary care institute of northern India,the emergency department receives an average of 6-7 patients with poly trauma every day.Of these patients,some come directly and many are referred from other hospitals from the region.Various problems are faced in the management of patients with poly trauma.This study aimed to elicit various complaints,suggestions and possible solutions in the management of patients with poly trauma.METHODS:A retrospective cross sectional study was done on 210 patients in the emergency OPD for a period of 2 months.All the records of the patients with poly trauma were studied and the problems during their management were measured against 6 predetermined steps(step Ⅰ to step Ⅵ).RESULTS:In the younger generation,males were predominantly the primary victims of poly trauma injury,and road traffic accident was the major etiological factor.Injuries involving more than2 specialties induced many problems during the management of patients with poly trauma.Of 210 patients we studied,32 patients had problems at various steps and maximum problems in step Ⅲ,i.e.co-ordination between various specialties in the management of patients with poly trauma.CONCLUSION:A proper poly trauma management team and a well defined standard operative procedure are the keys to effective management of patients with poly trauma by minimizing the problems encountered. 展开更多
关键词 POLYTRAUMA Emergency department TRIAGE
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An Improved Handoff Algorithm for Heterogeneous Wireless Networks 被引量:1
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作者 Deepak Dahiya payal Mahajan +1 位作者 Zaheeruddin Mamta Dahiya 《Computers, Materials & Continua》 SCIE EI 2022年第11期3433-3453,共21页
Heterogeneous Wireless Network is currently a major area of focus in communication engineering.But the important issue in recent communication is the approachability to the wireless networks while maintaining the qual... Heterogeneous Wireless Network is currently a major area of focus in communication engineering.But the important issue in recent communication is the approachability to the wireless networks while maintaining the quality of service.Today,all the wireless access networks are working in tandem to keep the users always connected to the internet cloud that matches the price affordability and performance goals.In order to achieve seamless connectivity,due consideration has to be given to handoff precision and a smaller number of handoffs.Several researchers have used heuristic approaches to solve this issue.In the present work,a hybrid intelligent algorithm has been suggested for vertical handoff decisions.This hybrid intelligent algorithm is based on dual optimization approach which uses“Particle Swarm Optimization(PSO)”and“Mobile Robustness Optimization(MRO)”techniques for improving the quality of services.This approach performs well even in the failure network conditions and gives the best results in terms of connectivity.The results at the last has been compared with the conventional techniques and it has been observed that the proposed methodology outperforms the existing one. 展开更多
关键词 PSO MRO heterogeneous wireless networks HANDOFF seamless connectivity
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Lumped parameter analytic modeling and behavioral simulation of a 3-DOF MEMS gyro-accelerometer 被引量:1
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作者 payal Verma Sandeep K.Arya Ram Gopal 《Acta Mechanica Sinica》 SCIE EI CAS CSCD 2015年第6期910-919,共10页
A new analytical model of a 3-degree-of-freedom (3-DOF) gyro-accelerometer system consisting of a 1-DOF drive and 2-DOF sense modes is presented. The model constructs lumped differential equations associated with ea... A new analytical model of a 3-degree-of-freedom (3-DOF) gyro-accelerometer system consisting of a 1-DOF drive and 2-DOF sense modes is presented. The model constructs lumped differential equations associated with each DOFof the system by vector analysis. The coupled differential equations thus established are solved analytically for their responses in both the time and frequency domains. Considering these frequency response equations, novel device design concepts are derived by forcing the sense phase to zero, which leads to a certain relationship between the structural frequencies, thereby causing minimization of the damping effect on the performance of the system. Furthermore, the feasibility of the present gyro-accelerometer structure is studied using a unique discriminatory scheme for the detection of both gyro action and linear acceleration at their events. This scheme combines the formulated settled transient solution of the gyro-accelerometer with the processes of synchronous demodulation and filtration, which leads to the in-phase and quadrature components of the system's output signal. These two components can be utilized in the detection of angular motion and linear acceleration. The obtained analytical results are validated by simulation in a MATLAB/Simulink environment, and it is found that the results are in excellent agreement with each other. 展开更多
关键词 Microelectromechanical systems (MEMS) ·Multimeasurement system. Gyro-accelerometer Gyro-accelerometer model - Transient model
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Anxiety disorder: definition, symptoms, causes, epidemiology and treatments
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作者 Preeti Gautam payal Mittal +1 位作者 Shubham Gautam Vivek Rawat 《Food and Health》 2022年第4期4-10,共7页
Anxiety is the most common disorder nowadays.Anxiety can be acute or can be chronic.There are several scientific evidences that prove nutrition’s importance and role of different therapies in the treatment of anxiety... Anxiety is the most common disorder nowadays.Anxiety can be acute or can be chronic.There are several scientific evidences that prove nutrition’s importance and role of different therapies in the treatment of anxiety.But very few people are familiar with the role of taking proper nutrition or a balanced diet in anxiety treatment.This article helps many people to know deeply about the therapies they can do at their home and the nutrition and food for healthy lives and controlling the mental disorder.This scoping review also helps to under the anxiety,symptoms,causes,prevalence in patient and how it should be treated with or without the use of medication.Long-term analysis of previous studies show more than 60,000 results with the use of Artificial intelligence which are totally different.So brief literature was studied and found that nutrition plays definitely a major role in treatment.Literature survey revealed the relation between a large intake of fruits,vegetables,omega 3,fatty acids,a ketogenic diet,calorie,magnesium,zinc,selenium,probiotics with low level of anxiety.Paper also revealed the association between higher anxiety levels with high intake of fat diet,sugar intake,carbohydrate,oily food.This paper helps you to understand the value of each therapy and nutrition for successive decreasing anxiety.This paper has main aim to describe the prevalence,causes,symptoms of anxiety so that it can help people to understand that what kind of anxiety is there which they are suffering from and what ways can be done to treat it naturally with the help of huge beneficial therapies,nutritional food,exercises and marketed medicines with advantages and disadvantages and by adding some herbal plants in their diet. 展开更多
关键词 ANXIETY health inflammation nutrition mental illness MEDICATION prevalence THERAPIES
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Effect of Fe^(3+)Doping Concentration in Cu_(2)ZnSnS_(4) Thin Film:Structural and Optical Analysis
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作者 Shariful Islam payal Majumdar +1 位作者 Md.Abul Hossain Farid Ahmed 《材料科学与工程(中英文A版)》 2022年第3期97-106,共10页
CZTS(copper zinc tin sulfide),Cu_(2)ZnSnS_(4),is a potential demanding candidate that is used as absorber layer in solar cell.The CZTS,Fe^(3+)doped CZTS and CFTS(replacing Zn be Fe^(3+))thin films were deposited on a ... CZTS(copper zinc tin sulfide),Cu_(2)ZnSnS_(4),is a potential demanding candidate that is used as absorber layer in solar cell.The CZTS,Fe^(3+)doped CZTS and CFTS(replacing Zn be Fe^(3+))thin films were deposited on a glass substrate using spin coating technique.The structural and optical properties of all the thin films were studied to investigate the effect of iron doping in CZTS.The XRD(X-ray diffraction)results show that all the thin films grow tetragonal crystal system.The crystallite size of the doped CZTS was higher than the pristine CZTS although it was lowest for CFTS.The optical band gaps varied from 1.45 eV and 1.83 eV which are suitable for absorbing sunlight. 展开更多
关键词 CZTS CFTS solar cell absorption coefficient band gap
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Thrombosis after SARS-CoV2 infection or COVID-19 vaccination:will a nonpathologic anti-PF4 antibody be a solution?—A narrative review
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作者 Elizabeth Rao payal Grover Hongtao Zhang 《Journal of Bio-X Research》 2022年第3期97-103,共7页
The coronavirus disease 2019(COVID-19)pandemic was triggered by severe acute respiratory syndrome coronavirus 2(SARS-CoV-2),a previously unknown strain of coronavirus.To fully understand the consequences and complicat... The coronavirus disease 2019(COVID-19)pandemic was triggered by severe acute respiratory syndrome coronavirus 2(SARS-CoV-2),a previously unknown strain of coronavirus.To fully understand the consequences and complications of SARS-CoV-2 infections,we have reviewed current literature on coagulation dysfunctions that are related to the disease and vaccination.While COVID-19 is more commonly considered as a respiratory illness,studies indicate that,in addition to respiratory illness,a coagulation dysfunction may develop in individuals after the initial infection,placing them at the risk of developing thrombotic events.Patients who died of COVID-19 had higher levels of D-dimer,a biomarker for blood clot formation and breakdown.Effective treatments for coagulation dysfunctions are critically needed to improve patient survival.On the other hand,antibodies against platelet factor 4(PF4)/heparin may be found in patients with rare instances of vaccine-induced immunological thrombotic thrombocytopenia(VITT)following vaccination with adenovirus-based vaccines.VITT is characterized by atypical thrombosis and thrombocytopenia,similar to immune-mediated heparin-induced thrombocytopenia(HIT),but with no need for heparin to trigger the immune response.Although both adenovirus-based and mRNA-based vaccines express the Spike protein of SARS-CoV-2,VITT is exclusively related to adenovirus-based vaccines.Due to the resemblance with HIT,the use of heparin is highly discouraged against treating patients with thrombotic thrombocytopenia after SARS-CoV-2 infection or with VITT after vaccination.Intravenous immunoglobulin therapy coupled with anticoagulation is recommended instead.The well-studied anti-PF4 monoclonal antibody RTO,which does not induce pathologic immune complexes in the presence of heparin and has been humanized for a potential treatment modality for HIT,may provide a nonanticoagulant HIT-specific solution to the problem of increased blood coagulation after SARS-CoV-2 infection or the VITT after immunization. 展开更多
关键词 ANTIBODY coagulation dysfunctions COVID-19 PF4 vaccine-induced immunological thrombotic thrombocytopenia
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Regulatory framework of cosmetic in the European Union
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作者 Preeti Gautam Deepak Ganghas +2 位作者 payal Mittal Vikas Gupta Kanika Dhiman 《Toxicology Communications》 2022年第3期6-16,共11页
Cosmetics that are personal or personalized are now becoming extremely prevalent.While compliance is mandated by European Union(EU)Cosmetics Directive 1223/2009,there seem to be no strict guidelines for maintaining ob... Cosmetics that are personal or personalized are now becoming extremely prevalent.While compliance is mandated by European Union(EU)Cosmetics Directive 1223/2009,there seem to be no strict guidelines for maintaining obedience.Cosmetics must meet a number of conditions in order to be sold in the European Single Market;however,the focus of this article is on the Cosmetics Regulation 1223/2009.Regulations are examined for certain elements and several solutions are presented that allow for careful use of individually cloaked cosmetics that are available on the market.Metallic nanoparticles(NMs)have been proposed for usage as active ingredients/excipient in a number of cosmetics products.Due to fast-paced businesses in the cosmetic industry,cosmetology tends to focus on its distinctive characteristics to bring value to a diverse array of products,but due to the small size of nanometers,NMs may not always follow the very same handling guidelines as their conventional material.As a result,a nano-specific framework for regulating the use of nanomaterials&creation of nano-improved cosmetics is becoming increasingly prevalent.Scientific and industrial perspective into the NMs presently used for the m arketplace,with an emphasis on metallic NMs,and also an evaluation of the regulatory requirements and Scientific Commission on Consumer Safety(SCCS)Opinions.Considering the fact that the original Cosmetic products Directive(EU Legislation No 1223/2009)has precise restrictions on NMs,beauty materials containing unlawful NMs have already been supplied in the EU on numerous times.Researchers examine the risk evaluation indicated in Article 16 of the Cosmetology Code acts as a framework for the potential expansion to enhance nano-items,considering the long-term risks of nanomaterials if mistreated.The nation’s attention is on synchronizing efforts to integrate metallic NMs into cosmetic products but to the restricted fusion of metallic NMs with numerous non-metallic n anoparticles.Although Directive 76/768/EEC on the beauty items 展开更多
关键词 Cosmetic products Directive European community Regulation Scientific Commission on Consumer Safety
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Progranulin promotes neurite outgrowth and neuronal differentiation by regulating GSK-3β 被引量:1
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作者 Xue Gao Alvin P.Joselin +5 位作者 Lei Wang Amar Kar payal Ray Andrew Bateman Alison M.Goate Jane Y.Wu 《Protein & Cell》 SCIE CSCD 2010年第6期552-562,共11页
Progranulin(PGRN)has recently emerged as a key player in a subset of frontotemporal dementias(FTD).Numerous mutations in the progranulin gene have been identified in patients with familial or sporadic frontotemporal l... Progranulin(PGRN)has recently emerged as a key player in a subset of frontotemporal dementias(FTD).Numerous mutations in the progranulin gene have been identified in patients with familial or sporadic frontotemporal lobar degeneration(FTLD).In order to understand the molecular mechanisms by which PGRN deficiency leads to FTLD,we examined activity of PGRN in mouse cortical and hippocampal neurons and in human neuroblastoma SH-SY5Y cells.Treatment of mouse neurons with PGRN protein resulted in an increase in neurite outgrowth,supporting the role of PGRN as a neurotrophic factor.PGRN treatment stimulated phosphorylation of glycogen synthase kinase-3 beta(GSK-3β)in cultured neurons.Knockdown of PGRN in SH-SY5Y cells impaired retinoic acid induced differentiation and reduced the level of phosphorylated GSK-3β.PGRN knockdown cells were also more sensitized to staurosporineinduced apoptosis.These results reveal an important role of PGRN in neurite outgrowth and involvement of GSK-3βin mediating PGRN activity.Identification of GSK-3βactivation as a downstream event for PGRN signaling provides a mechanistic explanation for PGRN activity in the nervous system.Our work also suggest that loss of axonal growth stimulation during neural injury repair or deficits in axonal repair may contribute to neuronal damage or axonal loss in FTLD associated with PGRN mutations.Finally,our study suggests that modulating GSK-3βor similar signaling events may provide therapeutic benefits for FTLD cases associated with PGRN mutations. 展开更多
关键词 progranulin frontotemporal lobar degeneration glycogen synthase kinase 3 beta(GSK-3β) neurite outgrowth
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Bianchi Type-IX String Cosmological Models for Perfect Fluid Distribution in General Relativity
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作者 Atul Tyagi Keerti Sharma payal Jain 《Chinese Physics Letters》 SCIE CAS CSCD 2010年第7期299-301,共3页
The present study deals with Bianchi type-IX string cosmological models for perfect fluid distribution. We consider two cases: (i) ρ + λ = 0, (ii) ρ - λ = 0, where ρ and λ are the rest energy density and t... The present study deals with Bianchi type-IX string cosmological models for perfect fluid distribution. We consider two cases: (i) ρ + λ = 0, (ii) ρ - λ = 0, where ρ and λ are the rest energy density and the tension density of a string cloud, respectively. The physical and geometrical properties of the models are discussed. 展开更多
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Periodic Orbits of the First Kind in the CR4BP When the Second Primary Is a Triaxial Rigid Body
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作者 M. R. Hassan payal Singh Md. Aminul Hassan 《International Journal of Astronomy and Astrophysics》 2017年第3期133-153,共21页
The present paper deals with the existence of periodic orbits in the Circular Restricted Four-Body Problem (CR4BP) in two-dimensional co-ordinate system when the second primary is a triaxial rigid body and the third p... The present paper deals with the existence of periodic orbits in the Circular Restricted Four-Body Problem (CR4BP) in two-dimensional co-ordinate system when the second primary is a triaxial rigid body and the third primary of inferior mass (in comparison of the other primaries) is placed at triangular libration point L4 of the Circular Restricted Three-Body Problem (CR3BP). With the help of generating solutions, we formed a basis for the existence of periodic orbits, then an analytical approach given by Hassan et al. [1], was applied to our model of equilateral triangular configuration. It is found that in general solution also;the character of periodic orbits is conserved. For verification of the existence of periodic orbits, we have applied the criterion of Duboshin [2] and found satisfied. 展开更多
关键词 Autonomous Four-Body Problem CR4BP TRIAXIAL Rigid Body REGULARIZATION GENERATING and General Solution PERIODICITY
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