نتایج جستجو برای: dissociative chemisorptions

تعداد نتایج: 4288  

Journal: :iranian journal of chemistry and chemical engineering (ijcce) 1994
asghar zeini isfahani m.w. roberts a.f. carley s. read

x-ray photoelectron and electron energy loss spectroscopic (xps-eels) studies reveal that the following species are present when a mixture of co2 and water vapour is exposed to the clean mg(100) surface at 110k: co3(a), c(a) ch(a), oh(a). the reactive chemisorptions of co2 and h2o vapour coadsorbed on a mg surface leads to the formation of ch bond. increasing the temperature to 400 k shows the ...

2016
Junlin Zheng Junhua Zhu Xuan Xu Wanmin Wang Jiwen Li Yan Zhao Kangjian Tang Qi Song Xiaolan Qi Dejin Kong Yi Tang

Hydrogenation of levulinic acid (LA) and its esters to produce γ-valerolactone (GVL) and 2-methyl tetrahydrofuran (2-MTHF) is a key step for the utilization of cellulose derived LA. Aiming to develop a commercially feasible base metal catalyst for the production of GVL from LA, with satisfactory activity, selectivity, and stability, Al2O3 doped Cu/SiO2 and Cu/SiO2 catalysts were fabricated by c...

X-ray photoelectron and high resolution electron energy loss spectroscopic (XPS-HREELS) studies have shown that the adsorption of carbon dioxide at Mg(100) surfaces at 80K is followed by a dissociative reaction leading to the formation of a metastable surface carbonate above 80K. The formation of a carbonate species is proposed to proceed through oxidation of C0 (g) by an active oxygen su...

Journal: :international journal of high risk behaviors and addiction 0
seyede fateme sajadi department of psychology, shahid chamran university of ahvaz, ahvaz, ir iran; young researchers and elite club, shiraz, ir iran; department of psychology, shahid chamran university of ahvaz, ahvaz, ir iran. tel: +98-7132306089 nasrin arshadi department of psychology, shahid chamran university of ahvaz, ahvaz, ir iran yadolla zargar department of psychology, shahid chamran university of ahvaz, ahvaz, ir iran mahnaz mehrabizade honarmand department of psychology, shahid chamran university of ahvaz, ahvaz, ir iran zahra hajjari department of preventive medicine, faculty of medicine, university of malaya, kuala lumpur, malaysia

conclusions the findings of this study are in accordance with findings from previous studies, and generally show a meaningful association between schema, emotion regulation, dissociative experiences, and suicide ideation with borderline personality features. results the results showed a significant positive correlation between schema, emotion regulation, dissociative experiences and suicide ide...

Journal: :iranian journal of psychiatry and behavioral sciences 0
mohsen kianpoor department of psychiatry, zahedan university of medical sciences mohammad jaffar bahredar seyyed javad ommizade

objective: many psychodynamic oriented psychotherapists believe that people do not become addicted without a reason they use drugs to avoid painful feelings, thoughts and memories. the present study examines the relationship between the level of dissociation, substance dependence disorder and other psychiatric disorder. methods: in a descriptive study on prisoners of adel-abad prison, shiraz, i...

Journal: :journal of sciences islamic republic of iran 0

x-ray photoelectron and high resolution electron energy loss spectroscopic (xps-hreels) studies have shown that the adsorption of carbon dioxide at mg(100) surfaces at 80k is followed by a dissociative reaction leading to the formation of a metastable surface carbonate above 80k. the formation of a carbonate species is proposed to proceed through oxidation of c0 (g) by an active oxygen surface ...

Journal: :Nano letters 2011
Yoshiaki Sato Kazuyuki Takai Toshiaki Enoki

We investigate the chemisorptions of oxygen molecules on bilayer graphene (BLG) and its electrically modified charge-doping effect using conductivity measurement of the field effect transistor channeled with BLG. We demonstrate that the change of the Fermi level by manipulating the gate electric field significantly affects not only the rate of molecular adsorption but also the carrier-scatterin...

Journal: :international journal of high risk behaviors and addiction 0
seyedeh fatemeh sajadi department of psychology, shahid chamran university, ahvaz, ir iran; young researchers and elite cub, shiraz, ir iran; department of psychology, shahid chamran university, ahvaz, ir iran. tel: +98- 9173046244. zahra hajjari department of preventive medicine, faculty of medicine, univesity of malaya, kuala lumpur, malaysia yadollah zargar department of psychology, shahid chamran university, ahvaz, ir iran mahnaz mehrabizade honarmand department of psychology, shahid chamran university, ahvaz, ir iran nasrin arshadi department of psychology, shahid chamran university, ahvaz, ir iran

conclusions early trauma, dissociative experience, and suicide ideation can predict active/passive a/pap and explain the considerable variance of survival index. results structural coefficients showed that the pattern of high scores in active/passive a/pap correlates with the pattern of high scores in early trauma, dissociative experience and suicide ideation. the findings of the study showed t...

Journal: Addiction and Health 2013
Alireza Ghafarinezhad, Ghodratollah Rajabizadeh Vahid Shahriari

Background: Drug abuse is a major public health problem. Some believe that when dissociation fails to defend against emotional, physical, or sexual trauma, the person will find relief from unpleasant thoughts and emotions in opium use. On the other hand, personality disorders are considered as important predictors of treatment outcomes in drug abusers. Due to lack of adequate research in this r...

Journal: :Psychiatry research 2012
Christoph Mueller-Pfeiffer Kaspar Rufibach Noelle Perron Daniela Wyss Cornelia Kuenzler Cornelia Prezewowsky Roger K Pitman Michael Rufer

Dissociative disorders are frequent comorbid conditions of other mental disorders. Yet, there is controversy about their clinical relevance, and little systematic research has been done on how they influence global functioning. Outpatients and day care patients (N=160) of several psychiatric units in Switzerland were assessed with the Structured Clinical Interview for Diagnostic and Statistical...

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