Much improved upper limit for the rate constant for the reaction of O2+ with N2.

J Phys Chem A

Air Force Research Laboratory, Space Vehicles Directorate, 29 Randolph Road, Hanscom Air Force Base, Massachusetts 01731-3010, USA.

Published: October 2006

The rate constant for the reaction of O2+ with N2 to produce NO+ plus NO has been measured at 423, 523, and 623 K in a turbulent ion flow tube. Much improved upper limits for this reaction at the three temperatures are 2, 4, and 10x10(-21) cm3 s-1, respectively. These results should render this reaction irrelevant when modeling all plasmas involving atmospheric gases.

Download full-text PDF

Source
http://dx.doi.org/10.1021/jp064962pDOI Listing

Publication Analysis

Top Keywords

improved upper
8
rate constant
8
constant reaction
8
reaction o2+
8
upper limit
4
limit rate
4
reaction
4
o2+ rate
4
o2+ produce
4
produce no+
4

Similar Publications

Introduction: The Friedreich Ataxia Rating Scale-Activities of Daily Living (FARS-ADL) is a valid, highly utilized measure for assessing ADL impacts in patients with Friedreich ataxia. We provide evidence of the psychometric validity of the FARS-ADL in two cohorts of patients with spinocerebellar ataxia (SCA).

Methods: Using data from a cohort of real-world subjects with SCA (recruited at Massachusetts General Hospital [MGH]; n = 33) and a phase 3 trial of troriluzole in adults with SCA (NCT03701399 [Study 206]; n = 217), comprising a subset of patients with the SCA3 genotype (n = 89), the psychometric measurement properties and minimal change thresholds of the FARS-ADL were examined.

View Article and Find Full Text PDF

Baseline characteristics of patients in the Chinese Bronchiectasis Registry (BE-China): a multicentre prospective cohort study.

Lancet Respir Med

January 2025

Division of Respiratory Medicine and Gastroenterology, University of Dundee, Ninewells Hospital and Medical School, Dundee, UK. Electronic address:

Background: Bronchiectasis is a disease with a global impact, but most published data come from high-income countries. We aimed to describe the clinical characteristics of patients with bronchiectasis in China.

Methods: The Chinese Bronchiectasis Registry (BE-China) is a prospective, observational cohort enrolling patients from 111 hospitals in China.

View Article and Find Full Text PDF

Purpose: This study aimed to investigate the impact of a 6-week upper-body plyometric-training (PT) program with varying volumes on the immunoendocrine, physiological parameters, and physical performance adaptations in male volleyball players.

Methods: Twenty-four trained college players were randomly allocated into 3 groups with 8 participants. Each group performed 5 exercises at maximal effort with differences in volume: low (3 sets of 7 repetitions), moderate (3 sets of 10 repetitions), and high (3 sets of 13 repetitions).

View Article and Find Full Text PDF

Objective: A motor imagery (MI)-based brain-computer interface (BCI) enables users to engage with external environments by capturing and decoding electroencephalography (EEG) signals associated with the imagined movement of specific limbs. Despite significant advancements in BCI technologies over the past 40 years, a notable challenge remains: many users lack BCI proficiency, unable to produce sufficiently distinct and reliable MI brain patterns, hence leading to low classification rates in their BCIs. The objective of this study is to enhance the online performance of MI-BCIs in a personalized, biomarker-driven approach using transcranial alternating current stimulation (tACS).

View Article and Find Full Text PDF

Risk Factors for Limb Amputations in Modern Warfare Trauma: New Perspectives.

J Am Acad Orthop Surg

January 2025

From the Israel Defense Forces, Medical Corps, Kiryat Ono (Shapira, and Epstein), the Faculty of Medicine, The Hebrew University, Jerusalem (Shapira), the Sheba Medical Center, Tel Hashomer, Ramat Gan (Shapira), the Israel National Center for Trauma and Emergency Medicine Research, Gertner Institute of Epidemiology and Health Policy Research, Sheba Medical Center, Ramat Gan (Goldman, Givon, and Katorza), the Arrow Program for Medical Research Education, Chaim Sheba Medical Center, Tel-Hashomer, Ramat Gan (Katorza), the Faculty of Medical and Health Sciences, Tel Aviv University, Tel Aviv (Katorza, Dudkiewicz, and Prat), the Rehabilitation Division, Sheba Medical Center, Tel Hashomer, Ramat Gan (Dudkiewicz), the Critical Care Division, Rambam Health Care Campus, Haifa (Epstein), the Ruth and Bruce Rappaport Faculty of Medicine, Technion, Haifa (Epstein), and the Department of Orthopaedic Surgery, Sheba Medical Center, Tel Hashomer, Ramat Gan, Israel (Prat).

Background: In modern conflicts, extremities are mainly affected, with limb amputations required for approximately 5% of severely injured combatants and 7% of those with serious limb injuries. Amputations are some of the most challenging injuries endured by survivors, significantly affecting the patients and the healthcare system. This study aims to describe the rates, characteristics, and risk factors of limb amputations in patients with serious extremity trauma during the 2023 conflict in Israel.

View Article and Find Full Text PDF

Want AI Summaries of new PubMed Abstracts delivered to your In-box?

Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!