The Effect of COVID-19 Public Health Measures On Mental Health in California.

California was the first state to implement statewide public health measures, including lockdown and curfews, to mitigate transmission of SARS-CoV-2. The implementation of these public health measures may have had unintended consequences related to mental health for persons in California. This study is a retrospective review of electronic health records of patients who sought care in the University of California Health System to examine changes in mental health status during the pandemic. Data were extracted prior to the pandemic (March-October 2019) and during the pandemic (March-October 2020). Weekly values of new mental health disorders were extracted and further classified based on age. Paired t-tests were performed to test for differences in the occurrence of each mental health disorder for each age group. A two-way ANOVA was performed to assess for between group differences. When compared with pre-pandemic diagnoses, persons aged 26-35 had the greatest increase in mental health diagnoses overall during the pandemic, specifically for anxiety, bipolar disorder, depression, mood disturbance, and psychosis. The mental health of persons age 25-35 were more affected than any other age group.

The effect of SARS-CoV-2 variant on respiratory features and mortality.

SARS-CoV-2 (COVID-19) has caused over 80 million infections 973,000 deaths in the United States, and mutations are linked to increased transmissibility. This study aimed to determine the effect of SARS-CoV-2 variants on respiratory features, mortality, and to determine the effect of vaccination status. A retrospective review of medical records (n = 55,406 unique patients) using the University of California Health COvid Research Data Set (UC CORDS) was performed to identify respiratory features, vaccination status, and mortality from 01/01/2020 to 04/26/2022. Variants were identified using the CDC data tracker. Increased odds of death were observed amongst unvaccinated individuals and fully vaccinated, partially vaccinated, or individuals who received any vaccination during multiple waves of the pandemic. Vaccination status was associated with survival and a decreased frequency of many respiratory features. More recent SARS-CoV-2 variants show a reduction in lower respiratory tract features with an increase in upper respiratory tract features. Being fully vaccinated results in fewer respiratory features and higher odds of survival, supporting vaccination in preventing morbidity and mortality from COVID-19.

The other COVID-19 survivors: Timing, duration, and health impact of post-acute sequelae of SARS-CoV-2 infection.

AIMS AND OBJECTIVES: To determine the frequency, timing, and duration of post-acute sequelae of SARS-CoV-2 infection (PASC) and their impact on health and function. BACKGROUND: Post-acute sequelae of SARS-CoV-2 infection is an emerging major public health problem that is poorly understood and has no current treatment or cure. PASC is a new syndrome that has yet to be fully clinically characterised. DESIGN: Descriptive cross-sectional survey (n = 5163) was conducted from online COVID-19 survivor support groups who reported symptoms for more than 21 days following SARS-CoV-2 infection. METHODS: Participants reported background demographics and the date and method of their covid diagnosis, as well as all symptoms experienced since onset of covid in terms of the symptom start date, duration, and Likert scales measuring three symptom-specific health impacts: pain and discomfort, work impairment, and social impairment. Descriptive statistics and measures of central tendencies were computed for participant demographics and symptom data. RESULTS: Participants reported experiencing a mean of 21 symptoms (range 1-93); fatigue (79.0%), headache (55.3%), shortness of breath (55.3%) and difficulty concentrating (53.6%) were the most common. Symptoms often remitted and relapsed for extended periods of time (duration M = 112 days), longest lasting symptoms included the inability to exercise (M = 106.5 days), fatigue (M = 101.7 days) and difficulty concentrating, associated with memory impairment (M = 101.1 days). Participants reported extreme pressure at the base of the head, syncope, sharp or sudden chest pain, and "brain pressure" among the most distressing and impacting daily life. CONCLUSIONS: Post-acute sequelae of SARS-CoV-2 infection can be characterised by a wide range of symptoms, many of which cause moderate-to-severe distress and can hinder survivors' overall well-being. RELEVANCE TO CLINICAL PRACTICE: This study advances our understanding of the symptoms of PASC and their health impacts.

A distinct symptom pattern emerges for COVID-19 long-haul: a nationwide study.

Long-haul COVID-19, also called post-acute sequelae of SARS-CoV-2 (PASC), is a new illness caused by SARS-CoV-2 infection and characterized by the persistence of symptoms. The purpose of this cross-sectional study was to identify a distinct and significant temporal pattern of PASC symptoms (symptom type and onset) among a nationwide sample of PASC survivors (n = 5652). The sample was randomly sorted into two independent samples for exploratory (EFA) and confirmatory factor analyses (CFA). Five factors emerged from the EFA: (1) cold and flu-like symptoms, (2) change in smell and/or taste, (3) dyspnea and chest pain, (4) cognitive and visual problems, and (5) cardiac symptoms. The CFA had excellent model fit (x2 = 513.721, df = 207, p < 0.01, TLI = 0.952, CFI = 0.964, RMSEA = 0.024). These findings demonstrate a novel symptom pattern for PASC. These findings can enable nurses in the identification of at-risk patients and facilitate early, systematic symptom management strategies for PASC.

COVID Symptoms, Symptom Clusters, and Predictors for Becoming a Long-Hauler Looking for Clarity in the Haze of the Pandemic.

Post-acute sequelae of SARS-CoV-2 (PASC) is defined as persistent symptoms after apparent recovery from acute COVID-19 infection, also known as COVID-19 long-haul. We performed a retrospective review of electronic health records (EHR) from the University of California COvid Research Data Set (UC CORDS), a de-identified EHR of PCR-confirmed SARS-CoV-2-positive patients in California. The purposes were to (1) describe the prevalence of PASC, (2) describe COVID-19 symptoms and symptom clusters, and (3) identify risk factors for PASC. Data were subjected to non-negative matrix factorization to identify symptom clusters, and a predictive model of PASC was developed. PASC prevalence was 11% (277/2,153), and of these patients, 66% (183/277) were considered asymptomatic at days 0-30. Five PASC symptom clusters emerged and specific symptoms at days 0-30 were associated with PASC. Women were more likely than men to develop PASC, with all age groups and ethnicities represented. PASC is a public health priority.

A novel conceptual model of trauma-informed care for patients with post-acute sequelae of SARS-CoV-2 illness (PASC).

AIM: This paper proposes a novel, trauma-informed, conceptual model of care for Post-Acute Sequelae of COVID-19 illness (PASC). DESIGN: This paper describes essential elements, linkages and dimensions of the model that affect PASC patient experiences and the potential impact of trauma-informed care on outcomes. DATA SOURCES: PASC is a consequence of the global pandemic, and a new disease of which little is known. Our model was derived from the limited available studies, expert clinical experience specific to PASC survivors and publicly available social media narratives authored by PASC survivors. IMPLICATIONS FOR NURSING: The model provides a critical and novel framework for the understanding and care of persons affected by PASC. This model is aimed at the provision of nursing care, with the intention of reducing the traumatic impacts of the uncertain course of this disease, a lack of defined treatment options and difficulties in seeking care. The use of a trauma-informed care approach to PASC patients can enhance nurses' ability to remediate and ameliorate both the traumatic burden of and the symptoms and experience of the illness. CONCLUSION: Applying a trauma-informed perspective to care of PASC patients can help to reduce the overall burden of this complex condition. Owing to the fundamentally holistic perspective of the nursing profession, nurses are best positioned to implement care that addresses multiple facets of the PASC experience. IMPACT: The proposed model specifically addresses the myriad ways in which PASC may affect physical as well as mental and psychosocial dimensions of health. The model particularly seeks to suggest means of supporting patients who have already experienced a life-threatening illness and are now coping with its long-term impact. Since the scope of this impact is not yet defined, trauma-informed care for PASC patients is likely to reduce the overall health and systems burdens of this complex condition.

Antihistamines for Postacute Sequelae of SARS-CoV-2 Infection.

Postacute sequelae of SARS-CoV2 (PASC) infection is an emerging global health crisis, variably affecting millions worldwide. PASC has no established treatment. We describe 2 cases of PASC in response to opportune administration of over-the-counter antihistamines, with significant improvement in symptoms and ability to perform activities of daily living. Future studies are warranted to understand the potential role of histamine in the pathogenesis of PASC and explore the clinical benefits of antihistamines in the treatment of PASC.

"They Aren't Going to Do Jack Shit": Text-Based Crisis Service Users' Perceptions of Seeking Child Maltreatment-Related Support From Formal Systems.

Many of the children reported to child protective services (CPS) exhibit signs and symptoms that allow others to recognize their abuse or neglect and intervene; others, especially adolescents, must disclose their experiences to be identified. Relatively little is known about young people's disclosure experiences, but individual, interpersonal, and cultural factors appear to influence when and how young people disclose. Technology-facilitated approaches, such as text- or chat-based hotlines or crisis services, may be one way to help young people share their maltreatment experiences and seek help. The current study contributes to the small body of literature that includes nonsexual maltreatment disclosures and sheds some light on how to support young people during their disclosures. We conducted a qualitative content analysis of all conversations from a text-based crisis service that resulted in a report to CPS (n = 244). Many of the texters had previously sought support from their peers or parents, and some had engaged with more formal systems. Many young people were hesitant to reach out to formal systems in the future, in part because of negative experiences during past disclosure experiences. Young people may be more likely to seek support through their preferred communication medium, so providing text- and chat-based communication may be one way to encourage and facilitate disclosure. As these resources become increasingly available, determining best practices for receiving disclosures through technology-facilitated platforms will be critical.

COVID Symptoms, Symptom Clusters, and Predictors for Becoming a Long-Hauler: Looking for Clarity in the Haze of the Pandemic.

Emerging data suggest that the effects of infection with SARS-CoV-2 are far reaching extending beyond those with severe acute disease. Specifically, the presence of persistent symptoms after apparent resolution from COVID-19 have frequently been reported throughout the pandemic by individuals labeled as "long-haulers". The purpose of this study was to assess for symptoms at days 0-10 and 61+ among subjects with PCR-confirmed SARS-CoV-2 infection. The University of California COvid Research Data Set (UC CORDS) was used to identify 1407 records that met inclusion criteria. Symptoms attributable to COVID-19 were extracted from the electronic health record. Symptoms reported over the previous year prior to COVID-19 were excluded, using nonnegative matrix factorization (NMF) followed by graph lasso to assess relationships between symptoms. A model was developed predictive for becoming a long-hauler based on symptoms. 27% reported persistent symptoms after 60 days. Women were more likely to become long-haulers, and all age groups were represented with those aged 50 ± 20 years comprising 72% of cases. Presenting symptoms included palpitations, chronic rhinitis, dysgeusia, chills, insomnia, hyperhidrosis, anxiety, sore throat, and headache among others. We identified 5 symptom clusters at day 61+: chest pain-cough, dyspnea-cough, anxiety-tachycardia, abdominal pain-nausea, and low back pain-joint pain. Long-haulers represent a very significant public health concern, and there are no guidelines to address their diagnosis and management. Additional studies are urgently needed that focus on the physical, mental, and emotional impact of long-term COVID-19 survivors who become long-haulers.

Online information seeking behaviors of breast cancer patients before and after diagnosis: From website discovery to improving website information.

Despite the internet being a common place breast cancer patients seek information, navigating this Wild West of content can be challenging. The present study analyzed open-ended data from breast cancer survivors (n = 77) regarding their online information seeking behaviors when looking for breast cancer information to help inform the creation of improved online educational materials. Participants were asked what prompted them to seek information, which websites and search terms they used both before and after diagnosis, what information was useful, what misinformation was found, and what they would like to see improved. Results indicated symptoms, tests, or diagnoses prompt women to seek breast cancer information online, and that many different search terms and websites are used. More search terms and websites were utilized after diagnosis compared to before diagnosis, but the most common search terms and websites did not change much from before to after diagnosis. Cancer specific and general medical websites were the most popular. The most useful information related to treatment, obtaining information from other breast cancer survivors, statistics, and positively-valenced information. Though misinformation was not reported by many participants, some mentioned outdated survival rates, inaccurate information about alternative treatments, and other breast cancer patients' experiences that did not align with their own. Participants desired improvements in treatment information, more factual information, a guide, and information that is easy to understand. Creation of a guide and use of search engine optimization to help breast cancer patients navigate this online information could be beneficial.

Exploring conceptual and theoretical frameworks for nurse practitioner education: a scoping review protocol.

REVIEW QUESTION/OBJECTIVE: The objective of this review is to examine conceptual and/or theoretical frameworks that are relevant to nurse practitioner education.The specific review question is: What conceptual and/or theoretical frameworks are available that are relevant to the structuring of nurse practitioner education? BACKGROUND: The use of conceptual and theoretical frameworks to organize the educational curriculum of nursing programs is essential to protect and preserve the focus and clarity of nursing's distinct contribution to health care. Conceptual frameworks of nursing provide a means to look at nursing in relationship to external factors, thereby assigning meaning to the practice. Graduate level nursing education in the preparation of Nurse Practitioners (NPs) specifically and Advanced Practice Nurses (APNs) in general, is significantly compromised by the tendency to conceptualize the learning in these complex programs as being primarily related to skills-based tasks and competencies alone. According to Baumann, advanced nursing education must focus on the uniqueness of the NP position, in contrast to other health care professions. To do this, Baumann suggests using a conceptual nursing model and nursing theory as opposed to a strictly biomedical model. This allows NPs to interpret information in a way that differs from the strict biomedical model, providing opportunities for the NPs to be truly present in the lives of their patients.Canadian Nurse Practitioner (NP) practice competency documents are based primarily on the Canadian Nurses Association (CNA) Nurse Practitioner (NP) Core Competency Framework. This document defines the core set of entry-level competencies required for all NPs to practice in all Canadian jurisdictions, settings and client populations. The Core Competencies in the CNA NP Framework are organized within four main categories: professional role, responsibility and accountability; health assessment and diagnosis; therapeutic management; and health promotion and prevention of illness and injury. Although vital to the organization of provincial entry-level registration standards, this framework provides little direction to educational providers for curricula organization and philosophical perspectives.The Canadian Association of Schools of Nursing developed a national framework for NP education following a multi-phase consultation and literature and curriculum synthesis project. While the task force addressed the guiding principles and essential components of NP education along with contextual factors that impact on the delivery of curricula in Canadian jurisdictions, the philosophical approaches guiding and organizing the education were not addressed.A similar set of documents has been created in the United States by the National Organization of Nurse Practitioner Faculties (NONPF). These documents are organized by six population level foci (including the specialty of family/individual across the lifespan) and outline core competencies for entry to practice and registration and educational standards. The Core Competency documents provided by the NONPF are presented in the same manner as the CNA NP Framework and likewise, do not provide a guiding or organizing framework or philosophy for NP education.A full curriculum overhaul based on the NONPF competency requirements was performed at a university center in Oregon. The new curriculum was based on competencies that students must acquire, rather than learning objectives. While the NONPF Framework does provide an extensive list of entry-level requirements for NPs, the challenges faced by the institution as it aimed to incorporate the framework into the curriculum clearly provide evidence that these overarching frameworks need to include both a philosophical and organizational component to help guide educators.Conceptual frameworks are useful for establishing a congruent relationship between program curricula, objectives and content. Walker and Avant advance the utility of conceptual frameworks as providing the logic behind the interrelationships of terms and variables, and improving explanation and understanding. Gold, Haas & King assert that conceptual frameworks facilitate grounding of a nursing lens in the curricula of advanced practice nursing programs. It has been noted that newly practicing NPs have demonstrated an allegiance withmedical model thinking, second only in importance to wellness/health promotion considerations. Blasdell and colleagues surveyed 188 practicing NPs to investigate the relationship between education and the use of theory in clinical practice. Educated graduate NPs rated the importance of nursing theory to the NP practice role significantly higher than did diploma and baccalaureate degree NPs (4.05±2.06 versus 2.65±1.69, p<.001) but both groups rated the nursing models as less important for practice than a medical model approach.Huckabay highlighted the need for the use of a harmonized nursing model at the undergraduate level to ensure that students have a thorough understanding of what nursing is and what nursing care entails. At the graduate level, Huckabay suggested the use of multiple nursing models, depending on specialty. Regardless of the educational level, a conceptual framework used for education must enable nurse educators to have sufficient guidelines to construct a curriculum and determine what knowledge and skills are needed by the nursing students. Further, Furlong identified the need for Advanced Practice Nursing (APN) curriculae to be innovative and critically reflective, preparing students to be readily adaptable to challenges in the work place. Furlong suggests that to do this, the curriculum must rely upon an interdisciplinary framework to deliver content. Gold, Haas & King suggest that core curricula based on a medical model or a skill-related task list do not reflect the critical thinking of nurses, nor the uniqueness of the profession. Thus, conceptual models used for curricula development must: encompass the distinct nursing worldview, promote learning, and be efficient and comprehensive.Frameworks have been proposed and tested to guide the development and implementation of inter-professional education (IPE) and collaborative practice curricula for NP and medical students. A qualitative assessment of a framework guided IPE module illustrated the benefit of improving the focus on role awareness in participating students. However, this particular curriculum was limited to a two-week period and not presented as a pervasive approach to the educational programs of each discipline.In education, an overarching philosophy can provide a road map for goal identification, teaching material development and the formulation of evaluation methods. For instance, when creating a curriculum that was a result of the collaboration of three different post-secondary institutions, the SHARE (students, humor, administrative support, resources, and educational technology) model was used. This model brings together resources, students and faculty, surrounding them with humor, which was viewed as a fundamental part of the process while the program was still in its early stages. According to the authors, the program has been widely successful and the reliance on humor as an underlying philosophy has enabled the students and faculty to deal with problems arising in the new program.Focusing on evaluation, Kapborg & Fischbein promoted the use of the Education Interaction Model. The model identifies how educational influences can interact with abilities of students and how the consequences of this interaction can be evaluated by observing changes in both students and programs. The authors argue that, while the educational interaction model is effective, it is not the only model that can be used to carry out evaluations. The authors stress that the model chosen to perform an evaluation should be based upon what or who is going to be evaluated.The standards outlined in the CNA NP framework are an essential part of organizing the education process for NPs and ensuring that NPs have acquired the necessary skills to practice in Canada as an NP. However, the framework is lacking philosophy and organization regarding NP education programs to ensure that the curriculum is preparing the NPs for the ever-changing work environment.An Australian survey of NP education documents from relevant universities as well as interviews with NPs and academic conveners from Australia and New Zealand found that, while NP educational programs need to have strong clinical and science based learning components, student directed and flexible learning models act to ensure the capability of NPs as they strive to adapt to practice situations. Capability, as an approach to the learning process, includes the flexibility to respond to the specific, self-identified learning needs of students. Knowing how to learn, having high self-efficacy, applying competencies to new tasks, collaborating with others, and being creative are all signs of a capable practitioner. Gardner et al. emphasized the need for a program that fosters both competent and capable NPs. In a follow-up study, using the same data, Gardner et al. confirmed that NPs viewed the attributes of a capable NP as imperative to practice. Thus, a framework for NP education must include both competency building elements, such as those currently found in the CNA NP framework and capability building elements which can be fostered through self-directed learning.Similarly, Schaefer investigated the role of caring in nursing practice through a class for APN students in which the students reflected on their narratives of caring for patients. This qualitative study revealed that when APN students provide care by meeting the complex needs of suffering patients, the art and science of nursing combine. (ABSTRACT TRUNCATED)

Making sense of syphilis: beliefs, behaviours and disclosure among gay men recently diagnosed with infectious syphilis and the implications for prevention.

BACKGROUND: The resurgence of syphilis in men who have sex with men (MSM) has proved remarkably resilient in the face of innovative control and prevention interventions. Understanding the determinants of the current outbreaks has been restricted by the available data. Qualitative work is needed to understand individual and community experiences of syphilis and to help guide new prevention and control efforts. METHODS: An exploratory study using semi-structured interviews with a convenience sample of MSM (n = 15), recently diagnosed with infectious syphilis, attending sexual health and HIV-outpatient services in Brighton, England. RESULTS: Analysis focussed on men's beliefs about syphilis, their experience of testing and being given a syphilis diagnosis, mediators of 'risky' sexual behaviour and disclosure to social and sexual contacts. Two beliefs--'syphilis is rare' and 'syphilis is dirty'--dominated respondents' accounts. These beliefs coloured every aspect of respondents' clinical and social experience of syphilis, and impeded disclosure and partner notification. They also contributed to misconceptions about behaviours with increased syphilis transmission risk, the mechanics of disease acquisition, health-seeking behaviours and risk-reduction strategies. CONCLUSIONS: The apparent failure of syphilis control measures so far may be due to our limited understanding of MSM's views and experience of STIs other than HIV Syphilis prevention needs to tackle MSM's widely held beliefs about sexual communication, risk behaviour and other STIs. The most useful health education interventions are likely to be those that build on MSM's significant knowledge base and address both the current syphilis crisis and wider sexual health promotion goals.

Exploring the neural organization of person-related knowledge: lateralization of lesion, category specificity, and stimulus modality effects.

While it is generally agreed that the right fusiform gyrus is specialized for face recognition, the question of whether knowledge about persons is lateralized in the temporal lobes is more contentious. Does knowledge about people differ from other kinds of object knowledge with respect to brain laterality? Are side-of-lesion effects mediated by stimulus modality? This study aimed to investigate these questions by comparing patients with left temporal (LT) (n=8) and right temporal (RT) (n=11) lesions to control subjects (n=12) on verbal and visual tests of people, buildings, and objects. The RT group was impaired at recognizing famous faces, but not at choosing the picture of a famous building or a famous name from nonfamous distracters. The LT group was impaired at naming people, buildings, and objects, regardless of stimulus modality. When presemantic processing was controlled for, neither patient group was impaired in producing person-specific knowledge to faces or names, supporting the notion that semantic knowledge for people as for other kinds of objects, is stored in a distributed network across both hemispheres, regardless of stimulus modality.

Bond-forming reactions of dications with molecules: a computational and experimental study of the mechanisms for the formation of HCF2+ from CF3(2+) and H2.

The QCISD and QCISD(T) quantum chemical methods have been used to characterize the energetics of various possible mechanisms for the formation of HCF2+ from the bond-forming reaction of CF3(2+) with H2. The stationary points on four different pathways leading to the product combinations HCF2+ + H+ + F and HCF2+ + HF+ have been calculated. All four pathways begin with the formation of a collision complex [H2-CF3]2+, followed by an internal hydrogen atom migration to give HC(FH)F2(2+). In two of the mechanisms, immediate charge separation of HC(FH)F2(2+) via loss of either HF+ or a proton, followed by loss of an F atom, yields the experimentally observed bond-forming product HCF2+. For the other two mechanisms, internal hydrogen rearrangement of HC(FH)F2(2+) to give C(FH)2F(2+), followed by charge separation, yields the product CF2H+. This product can then overcome a 2.04 eV barrier to rearrange to the HCF2+ isomer, which is 1.80 eV more stable. All four calculated mechanisms are in agreement with the isotope effects and collision energy dependencies of the product ion cross sections that have been previously observed experimentally following collisions between CF3(2+) and H2/D2. We find that in this open-shell system, CCSD(T) and QCISD(T) T1-diagnostic values of up to 0.04 are acceptable. A series of angularly resolved crossed-beam scattering experiments on collisions of CF3(2+) with D2 have also been performed. These experiments show two distinct channels leading to the formation of DCF2+. One channel appears to correspond to the pathway leading to the ground state 1DCF2+ + D+ + F product asymptote and the other to the 3DCF2+ + D+ + F product asymptote, which is 5.76 eV higher in energy. The experimental kinetic energy releases for these channels, 7.55 and 1.55 eV respectively, have been determined from the velocities of the DCF2+ product ion and are in agreement with the reaction mechanisms calculated quantum chemically. We suggest that both of these observed experimental channels are governed by the reaction mechanism we calculate in which charge separation occurs first by loss of a proton, without further hydrogen atom rearrangement, followed by loss of an F atom to give the final products 1DCF2+ + D+ + F or 3DCF2+ + D+ + F.

The bond-forming reactions of atomic dications with neutral molecules: formation of ArNH+ and ArN+ from collisions of Ar2+ with NH3.

An experimental and computational study has been performed to investigate the bond-forming reactivity between Ar(2+) and NH(3). Experimentally, we detect two previously unobserved bond-forming reactions between Ar(2+) and NH(3) forming ArN(+) and ArNH(+). This is the first experimental observation of a triatomic product ion (ArNH(+)) following a chemical reaction of a rare gas dication with a neutral. The intensity of ArNH(+) was found to decrease with increasing collision energy, with a corresponding increase in the intensity of ArN(+), indicating that ArN(+) is formed by the dissociation of ArNH(+). Key features on the potential energy surface for the reaction were calculated quantum chemically using CASSCF and MRCI methods. The calculated reaction mechanism, which takes place on a singlet surface, involves the initial formation of an Ar-N bond to give Ar-NH(3)(2+). This complexation is followed by proton loss via a transition state, and then loss of the two remaining hydrogen atoms in two subsequent activationless steps to give the products (3)ArN(+) + H(+) + 2H. This calculated pathway supports the sequential formation of ArN(+) from ArNH(+), as suggested by the experimental data. The calculations also indicate that no bond-forming pathway exists on the ground triplet surface for this system.