High-fidelity inference of local impurity profiles in C-2W using Bayesian tomography.

In C-2W (also called "Norman") [1], beam-driven field reversed configuration plasmas embedded in a magnetic mirror are produced and sustained in a steady state. A multi-chord passive Doppler spectroscopy diagnostic provides line-integrated impurity emission measurements near the center plane of the confinement vessel with fast time resolution. The high degree of plasma non-uniformity across optical sightlines can preclude direct fitting of the measured line-integrated spectra.

Upgraded main ion charge exchange recombination spectroscopy on the C-2W field reversed configuration (FRC) plasma.

A prototype main-ion CHarge Exchange Recombination Spectroscopy (mCHERS) diagnostic is providing measurements of the main-ion (hydrogen or deuterium) temperature and velocity in the C-2W field reversed configuration plasma using charge exchange Balmer-alpha emission at five different radial locations with 500 Hz frequency and a per-pixel velocity resolution of 15 km/s. Measurement along the entire plasma radius of C-2W is enabled by a diagnostic neutral beam (DNB) that passes through the center of plasma, unlike the larger diameter heating neutral beams that have impact parameters of 20 cm. DNB provides high time resolution via beam modulation and spatial resolution via its small cross section.

Main ion charge exchange recombination spectroscopy on C-2W FRC plasmas.

A main ion charge exchange recombination spectroscopy (mChERS) diagnostic has been developed to measure the velocity and temperature of the main deuterium ions in the C-2W (also called Norman) field-reversed configuration (FRC) device. A modulated diagnostic neutral beam (DNB) of hydrogen with 40 keV full energy and a nominal current of 8.5 A provides the charge exchange signal.

Measurements of impurity ion temperature and velocity distributions via active charge-exchange recombination spectroscopy in C-2W.

In TAE Technologies' C-2W experiment, electrode biasing is utilized for boundary control of a field-reversed configuration (FRC) plasma embedded in a magnetic mirror. Understanding the underlying physics associated with FRC rotation, stabilization, and heating is crucial for improving machine performance. Impurity ion rotation and temperature are sensitive to biasing effects, and measurements of these quantities can provide insight into important plasma dynamics and overall effectiveness of the biasing system.

Lessons learnt and future directions in managing dialysis access during the COVID 19 pandemic: Patient and provider experience in the United States.

Background: The COVID 19 pandemic adversely impacted delivery of preventive, routine, urgent, and essential care worldwide. Dialysis access care was particularly affected due to the lack of specific guidelines regarding procedures for its creation and maintenance. Early guidance by Centers for Medicare and Medicaid was inadvertently interpreted as guidance to stop dialysis access procedures.

Development of a diagnostic using visible and near-infrared bremsstrahlung light for the C-2W field-reversed configuration plasma.

In C-2W, an elevated impurity concentration can lead to significant degradation of plasma performance and energy losses through radiation. To gauge plasma contamination from impurities, the effective ion charge ( ) can be determined from measurements of bremsstrahlung continuum radiation over a small spectral range free from line radiation. To this end, a diagnostic system including visible and near-infrared bremsstrahlung detectors was deployed in C-2W to measure time-dependent radial distributions of .

Fast-ion D-alpha diagnostic development for the C-2W field-reversed configuration plasma.

TAE Technologies's advanced beam-driven field-reversed configuration device has a large fast-ion population, allowing for fast-ion D-alpha (FIDA) studies. Development of a FIDA spectrometer for the new C-2W device is underway. Previous measurements were combined with C-2W geometry to inform the design [N.

["Give her booze and she'll loosen up": gender violence in Northeast Brazilian forró lyrics and parties].

Violence against women is primarily a socially produced issue of gender-hierarchy cultural values. This study aimed to unveil the meanings assigned to sexual violence against women in the forró lyrics by adolescent boys living on the outskirts of Fortaleza, Ceará State, Brazil. Our point of departure was ethnomusicology, the theory of which contends that studies of regional songs and their performances transcend the geographic space in which they are performed, to the extent that they reflect universally disseminated practices in the legitimation of violence.

Perception of Candomble Practitioners About Herbal Medicine and Health Promotion in Ceará, Brazil.

Candomble, a Brazilian religion of African origin that worships Orishas, promotes "healing" assistance during its worship rituals using therapy with plants and beliefs. From its ancestry tradition, the respect and beware with nature are expressed. Therefore, the aim of this study is to investigate the perception of ethnoecology and health promotion among Candomble practitioners from a Candomble temple in the state of Ceará, Brazil.

Kinetics of Excited Oxygen Formation in Shock-Heated O-Ar Mixtures.

The formation of electronically excited atomic oxygen was studied behind reflected shock waves using cavity-enhanced absorption spectroscopy. Mixtures of 1% O-Ar were shock-heated to 5400-7500 K, and two distributed-feedback diode lasers near 777.2 and 844.

Shock-tube measurements of excited oxygen atoms using cavity-enhanced absorption spectroscopy.

We report the use of cavity-enhanced absorption spectroscopy (CEAS) using two distributed feedback diode lasers near 777.2 and 844.6 nm for sensitive, time-resolved, in situ measurements of excited-state populations of atomic oxygen in a shock tube.

["Raw and charred flesh": the experience of burned women in Northeast Brazil].

In Northeast Brazil, death from burns is a widespread, pervasive threat to poor women. This anthropological study describes the experience of personal suffering among female burn patients. In 2009, six "information-rich" cases were investigated at the Burn Center in Fortaleza, Ceará State, Brazil.

Illness experiences of persons with chronic obstructive pulmonary disease: self-perceived efficacy of home-based pulmonary rehabilitation.

This qualitative study explores the illness experiences, the efficacy of pulmonary rehabilitation as perceived by patients with chronic obstructive pulmonary disease (COPD) and their rationale for improvements in health. 23 patients participated in a daily, three-month home-based pulmonary rehabilitation. A pre-post self-perceived assessment of efficacy was conducted.

Dead-baby dreams, transfiguration and recovery from infant death trauma in northeast Brazil.

Maternal reactions to infant death in Northeast Brazil have been at the epicenter of anthropological debate since the 1980s. This ethnographic study of 45 death narratives by bereaved mothers collected from 1979-1989 in Pacatuba, Ceará, Brazil, refutes existing claims of mothers' "selective neglect" and "indifference" towards sick babies and emotionally empty grief response. I argue that through dead-baby dreams--and their imaginary transfiguration-grieving mothers alleviate infant death trauma.

"Stuck in the muck": an eco-idiom of distress from childhood respiratory diseases in an urban mangrove in Northeast Brazil.

Situated in neo-democratic globalizing Northeast Brazil, this anthropological study probes the role of ecological context in framing, experiencing, and expressing human distress. Ethnographic interviews, narratives, and "contextualized semantic analysis" reveal the lived experience of childhood respiratory diseases among 22 urban mangrove dwellers. Informants speak an "eco-idiom of respiratory distress" based on a popular "eco-logic", reflecting the harsh reality of "living in dampness".

[Care and chronic illness: family caregiver's viewpoint in northeast Brazil].

The provision of care causes stress in everyday family dynamics leading to physical, mental and emotional complications in caregivers and spouses' loss of liberty and/or overwork. Between March and November 2006, this anthropological research examined family caregiving in the context of Chronic Obstructive Pulmonary Disease (COPD). By means of ethnographic interviews, illness narratives and participant observation, the scope was to describe family reorganization and coexistence with the disease and its evolution, caregiver perceptions about patient difficulties and limitations experienced and strategies employed to tackle their illness.

["Prisms of Perception": multiple readings of mass media health messages in Northeast Brazil].

This anthropological study from February 2009 to November 2010 revealed the comprehension and cultural critique of three mass media health campaigns in Northeast Brazil. Twenty-four ethnographic interviews were conducted, exploring the iconographic and semantic content of the campaigns in the Dendê community in Fortaleza, Ceará State, Brazil. The authors used Content Analysis; Systems of Signs, Significance, and Actions; and Contextualized Semantic Interpretation.

Balking blood pressure "control" by older persons of Bambuí, Minas Gerais State, Brazil: an ethno-epidemiological inquiry.

This ethno-epidemiological inquiry aims to comprehend hypertension-related experiences in the elderly population of Bambuí, in the State of Minas Gerais, Brazil. It combines ethnographic descriptions with statistical data. The subjective significance of factors associated with adequate arterial pressure control is explored.

[The evaluation of self-care workshops to carriers of chronic periodontitis: taking care of users and dentists].

The objective of this article is to evaluate the workshops of "accepting the patient" for dentists and of self-care for carriers of chronic periodontitis. The patients assisted at the periodontics clinics of graduation and post-graduation Dentistry courses and periodontics specialty students, in Fortaleza, Ceará State, Brazil, took part of educative workshops. A field diary was done in all workshops.

[Multiple perceptions of infant mortality in Ceará State, Brazil].

This qualitative study analyzes the perceptions of various social actors towards infant mortality and the program to reduce it in Ceará State, Northeast Brazil. The study compares two municipalities (counties) that showed opposite infant mortality trends from 1993 to 1997, during which time Ceará achieved international visibility for having reduced infant mortality statewide. A total of 48 semi-structured interviews with four groups of key informants health system managers, community health agents, mothers who had lost a child, and neighbor women with children in the same age bracket and content analysis revealed "multiple conflicting voices" on the issue.

Stigma, deforming metaphors and patients' moral experience of multibacillary leprosy in Sobral, Ceará State, Brazil.

In response to the call for a new Science of Stigma, this anthropological study investigates the moral experience of patients diagnosed with severe multibacillary leprosy. From 2003 to 2006, fieldwork was conducted in the so-called 'United-States-of-Sobral', in Ceará State, Northeast Brazil. Sobral is highly endemic for leprosy, despite intensified eradication efforts and a 30% increase in primary care coverage since 1999.

[Breath of life: experience with chronic obstructive pulmonary disease in the context of urban poverty in Fortaleza, Ceará State, Brazil].

This is an anthropological study on the experience of living with chronic obstructive pulmonary disease (COPD) for low-income individuals in the city of Fortaleza, Ceará State, Brazil. From March to November 2006, we conducted case studies of six patients, using ethnographic interviews, illness narratives, and participant-observation during hospital treatment and home visits. Thematic context analysis and contextualized semantic analysis were used to link individual experience to system of significance, actions taken, and structural constraints.