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Chemically modified silica gel with 1-{4-[(2-hydroxy-benzylidene)amino]phenyl}ethanone:Synthesis, characterization and application as an efficient and reusable solid phase extractant for selective removal of Zn(Ⅱ) from mycorrhizal treated fly-ash samples

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Journal of Environmental Sciences 2013年第6期25卷 1252-1261页

作者： R.K.Sharma aditi puri Anil Kumar Alok Adholeya 2 Green Chemistry Network Centre Department of ChemistryUniversity of Delhi Biotechnology and Management of Bioresources Division The Energy and Resource Institute

1-{4-[（2-hydroxy-benzylidene）amino]phenyl}ethanone functionalized silica gel was synthesized and used as a highly efficient, selective and reusable solid phase extractant for separation and preconcentration of trace amount of Zn（II） from environmental matrices. The adsorbent was characterized by fourier transform infrared spectroscopy （FT-IR）, elemental analysis,~3C CPMAS NMR spectroscopy, scanning electron microscopy （SEM）, thermogravimetric analysis （TGA） and BET surface area analysis. The dependence of zinc extraction on various analytical parameters such as pH, type and amount of eluent, sample flow rate and interfering ions were investigated in detail. The material exhibited superior adsorption efficiency for Zn（II） with high metal loading capacity of 1.0 mmol/g under optimum conditions. After adsorption, the recovery （〉 98%） of metal ions was accomplished using 1.0 mol/L HNO3 as an eluent. The sorbent was also regenerated by microwave treatment in milder acidic environment （0.1 mol/L HNO3）. The lower detection limit and preconcentration factor of the present method were found out to be 0.04 ~tg/L and 312.5 respectively. The modified silica surface possessed excellent selectivity for the target analytes and the adsorption/desorption process remained effective for at least ten consecutive cycles. The optimized procedure was successfully implemented for the extraction of Zn（II） from mycorrhizal treated fly ash and pharmaceutical samples with reproducible results.

关键词： solid phase extraction silica gel preconcentration fly-ash zinc

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Comparative study of thulium fiber laser versus holmium:yttrium-aluminum-garnet laser for ureteric stone management with semi-rigid ureteroscopy: A prospective, single-center study

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Asian Journal of Urology 2024年第3期11卷 460-465页

作者： Ankit Gupta Arvind P.Ganpule Ankush puri Abhishek G.Singh Ravindra B.Sabnis Mahesh R.Desai Muljibhai Patel Urological Hospital NadiadGujaratIndia

Objective:To compare the efficacy and safety of thulium fiber laser(TFL)and holmium:yttrium-aluminum-garnet(Ho:YAG)laser for ureteric stone management with semi-rigid ***:In a prospective study from January 2020 to December 2021,we compared 40 patients in each group who underwent semi-rigid ureteroscopic lithotripsy with TFL and that with Ho:YAG *** volume,stone density,stone fragmentation rates,total lasing time,total operative time,endoscopic vision,retropulsion and stone free rates were analyzed in both groups and ***:Mean stone volume was comparable in the TFL group and the Ho:YAG laser group(282.45[standard deviation,SD 139.79]mm3 vs.279.49[SD 312.52]mm3;p=0.964).Mean stone density was also comparable in the TFL group and the Ho:YAG laser group(1135.30[SD 317.04]Hounsfield unit vs.1131.75[SD 283.03]Hounsfield unit;p=0.959).The mean stone fragmentation rates calculated as stone volume divided by lasing time were 25.85(SD 10.61)mm3/min and 21.37(SD 14.13)mm3/min in the TFL group and the Ho:YAG laser group,respectively(p=0.113).The mean total lasing time(10.15[SD]4.69 min vs.11.43[SD 4.56]min;p=0.222),mean operative time(25.13[SD 9.51]min vs.25.54[SD 10.32]min;p=0.866),and mean total hospital stay(2.62[SD 0.77]days vs.2.61[SD 0.84]days;p=0.893)were comparable in the TFL group and in the Ho:YAG *** vision was better and retropulsion was less in the TFL *** stone-free rate at 1 month postoperatively was slightly better in the TFL group(100%vs.90%;p=0.095).

关键词： Laser Stone Urolithiasis Thulium Holmium

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Perception,use of social media,and its impact on the mental health of Indian adolescents:A qualitative study

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World Journal of Clinical Pediatrics 2024年第3期13卷 61-68页

作者： Vishnu V Taddi Ravshish K Kohli Pooja puri Amity Institute of Forensic Sciences Amity UniversityNoida 201313India

BACKGROUND Mental illness is a health challenge faced by adolescents that has grown worse after the Coronavirus disease 2019 *** on social media and young people’s mental health has recently increased,and numerous studies have examined whether frequent use of social media is linked to issues such as anxiety,stress,depression,eating disorders,insomnia,frustration,feeling alone,and externalizing problems among *** influence of social media on adolescents’lives is clear,with many platforms like Facebook,Instagram,and YouTube playing an important role in daily interactions and *** though social media offers numerous benefits,such as connectivity and information sharing,excessive usage can have detrimental effects on mental health,particularly among *** To study the impact of social media on the mental wellbeing of adolescents,and the associated potential dangers in *** A total of 204 adolescents aged 14 years to 23 years were included in the *** study explored the intricate relationship between social media usage and adolescent mental health in *** study employs a cross-sectional survey design to capture a snapshot of adolescent mental health and social media usage *** collection involved administering structured questionnaires and the analysis utilized quantitative methods,including descriptive *** Excessive use of social media is correlated with increased stress,anxiety,and *** engage in compulsive behaviors such as scrolling in the middle of the night,which negatively impacts their mental and physical health,and leads to significant sleep *** from the study aim to provide insights into the current state of adolescent mental health and inform strategies to promote positive wellbeing in the Indian *** The study underscores the need for further research to better understand the complex interplay between social media

关键词： Adolescents Anxiety Cyberbullying Depression Mental health Social media

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Salt Tolerance Mechanisms and Approaches:Future Scope of Halotolerant Genes and Rice Landraces

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Rice science 2020年第5期27卷 368-383页

作者： Tarun Bhatt aditi Sharma Sanjeev puri Anu Priya Minhas Department of Biotechnology University Institute of Engineering and TechnologySector-25Panjab UniversityChandigarh 160014India

All rice plant developmental stages are severely affected by soil salinity. Salinity-induced ionic and osmotic stresses affect stomata closure and gaseous exchange, and reduce transpiration and the rate of carbon assimilation, and hence decrease plant yield. Understanding the response of rice plants toward salinity stress at the genetic level and developing salt-tolerant varieties are the vital mandates for its effective management. This review described the present status of salt-tolerance achieved in rice by various mechanisms including the ion homeostasis(Na^+/H^+, OsNHX antiporters), compatible organic solutes(glycine betaine and proline), antioxidative genes(OsECS, OsVTE1, OsAPX and OsMSRA4.1), salt responsive regulatory elements(transcription factors, cis-acting elements and miRNAs) and genes ecoding protein kinases(MAPKs, SAPKs and STRKs). Further, the future perspective of developing salt-tolerant varieties lies in exploring halotolerant gene homologs from rice varieties, especially the landraces. Genetic diversity among rice landraces can serve as a valuable resource for future studies toward variety improvement through breeding and genome editing. Further, identification, multiplication, preservation and utilization of biodiversity among landraces are the urgent buffers to be saved as a heritage for future generations to come.

关键词： rice soil salinity ion homeostasis halotolerant landrace

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沙漠中的“诗和远方” Nokha村社区中心

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室内设计与装修 2024年第6期 14-17页

作者： [印度]Sanjay puri Architects(设计) Sanjay puri Architects

Sanjay puri建筑事务所设计了位于印度拉贾斯坦邦Nokha地区沙漠中的Nokha村社区中心。这座曲线形的建筑体量从东北角开始,环绕场地向西北角升起,形成一个面向北侧的开放式庭院。客户的要求是为他们的父亲Padma ramji Kularia创建一个纪... 详细信息

Sanjay puri建筑事务所设计了位于印度拉贾斯坦邦Nokha地区沙漠中的Nokha村社区中心。这座曲线形的建筑体量从东北角开始,环绕场地向西北角升起,形成一个面向北侧的开放式庭院。客户的要求是为他们的父亲Padma ramji Kularia创建一个纪念馆。Nokha是拉贾斯坦邦的一个地区,包括144个小村庄。通过对该地区的乡村学校以及当地现有设施的研究,设计师萌生了建立一个面向所有人群的社区中心的想法。

关键词：拉贾斯坦邦乡村学校建筑事务所曲线形建筑体量现有设施纪念馆沙漠

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First Known Case of Carcass Guarding by Black Kite (Milvus migrans) in Urban Landscape, North India

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Research in Ecology 2024年第1期6卷 1-5页

作者： Ritesh Joshi Kanchan puri Eco-Sensitive Zone Division Ministry of EnvironmentForest and Climate ChangeJorBagh RoadNew Delhi110003India

Behavioral traits of species can play an important role in the functioning of the ecosystem and in evolving behavioural adaptations to survive according to environmental *** note documents evidence of adding a rare observation by providing photographic evidence of the entanglement of a carcass of a juvenile Black Kite(Milvus migrans)from a nest and the use of nest by an adult individual,guarding the *** such behavior contributes to our understanding of the natural history and management of native species in an urban ***,scientific studies/observations are needed to be conducted to reach some conclusion as to why species perform such behaviour.

关键词： Behavioral traits Milvus migrans Carcass Ecosystem Biodiversity India

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Diagnostic clues to avoid pitfalls in the management of rare association of anorectal malformation with ileal atresia

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World Journal of Pediatrics 2016年第4期12卷 504-505页

作者： Archana puri Shalu Shah Department of Pediatric Surgery Kalawati Saran Children's Hospital and Lady Hardinge Medical CollegeNew Delhi 110001India

A full-term,2700 g,one-day-old baby presented with imperforate anus,bilious vomiting and abdominal *** examination,ultrasonography abdomen and echocardiography revealed no associated congenital anomalies.

关键词： rare abdomen management

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Design of reaction conditions for the enhancement of microbial degradation of dyes in sequential cycles

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Journal of Environmental Sciences 2009年第12期21卷 1646-1651页

作者： Rashmi Sanghi Awantika Dixit Preeti Verma Sadhna puri Facility for Ecological and Analytical Testing 302 Southern Laboratories Institute of Technology The LNM Institute of Information Technology Jaipur Dayanand Girls College CSJM University

The present study evaluated the potential of white-rot fungal strain Coriolus versicolor to decolorize five structurally different dyes in sequential batch reactors under optimized conditions. The experiments were run continuously for seven cycles of 8 d each. High decolorizing activity was observed even during the repeated reuse of the fungus, especially when the old medium was replaced with fresh medium after every cycle. Biodegradation was the dominating factor as the fungus was able to produce the enzyme laccase mainly, to mineralize synthetic dyes. The nutrients and composition of the medium played important roles in sustaining the decolorisation potential of the fungus. Corncob was found be an easy and cheap substitute for carbon source for the fungus. Glucose consumption by the fungus was in accordance to its decolorisation activity and chemical oxygen demand （COD） reduction.

关键词： Coriolus versicolor decolorisation sequential batch reactor

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Potential therapeutic interventions based on the role of the endoplasmic reticulum stress response in progressive neurodegenerative diseases

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Neural Regeneration Research 2018年第11期13卷 1887-1889页

作者： Basant K.puri Gerwyn Morris Department of Medicine Imperial College LondonHammersmith Hospital IMPACT Strategic Research Centre School of MedicineDeakin University

In 1945,Porter et *** an electon microscopy study of cultured chick fibroblasts in which they observed：＇a granular background and details of a darker lacelike reticulum which in places appears to be made up of chains of＂vesicles＂＇（Porter et al.,1945）.This constituted the first published observation of the endoplasmic reticulum（ER）and,while it was not evident at that time,this cytoplasmic system of interconnecting membrane-lined channels, comprising vesicles, tubules and cisternae, has numerous important functions.

关键词： Potential therapeutic interventions based on the role of the endoplasmic reticulum stress response in progressive neurodegenerative diseases UPR NAC

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Deep vein thrombosis and pulmonary embolism in cirrhotic patients:Systematic review

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World Journal of Gastroenterology 2014年第19期20卷 5737-5745页

作者： Ashish Aggarwal Kanika puri Suthat Liangpunsakul Division of Gastroenterology and Hepatology Department of MedicineIndiana University Medical CenterIN 46202United States Division of Gastroenterology and Hepatology Department of MedicineIndiana University Medical Center and Roudebush Veterans Administration Medical CenterIndianapolisIN 46202United States

Patients with liver cirrhosis were traditionally believed to be protected against development of blood ***,studies have shown that these patients may probably be at an increased risk of venous thrombotic *** the hemostatic changes in the chronic liver disease patients and the factors that may predict bleeding vs thrombotic complications remains an area of active research,it is believed that the coagulation cascade is delicately balanced in these patients because of parallel reduced hepatic synthesis of pro and anticoagulant *** state in cirrhotic patients is responsible for not only portal or non-portal thrombosis[deep vein thrombosis(DVT)and pulmonary embolism(PE)];it has also been associated with progression of liver *** use of anticoagulants in cirrhosis patients is a challenging,and often a scary *** review summarizes the current literature on the prevalence of venous thrombosis(DVT and PE),risk factors and safety of prophylactic and therapeutic anticoagulation in patients with chronic liver disease.

关键词： Deep venous thrombosis Chronic liver disease Cirrhosis Thrombosis Anticoagulation Pathogenesis Portal vein thrombosis

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