Political party affiliation, social identity cues, and attitudes about protective mask-wearing during the COVID-19 pandemic in Germany.

This cross-sectional study aimed to determine 1) whether German citizens' adherence to health professionals' recommendations and mandates regarding protective masks during the COVID-19 pandemic varied according to their political party affiliations, and 2) how behavioral cues provided by members of shared social groups, such as family and friends, influenced individual mask-wearing behavior. A quota-based sample of German voters (n = 330) consisting of 55 citizens whose voting intentions aligned with each of the country's six main political parties responded to an online questionnaire consisting of multiple-choice and open-ended questions. Univariate descriptive statistical analyses of quantitative data were conducted, and multiple regressions were performed to determine log odds and significant variations among group-based responses.

Right-Wing Populism, Social Identity Theory, and Resistance to Public Health Measures During the COVID-19 Pandemic.

Many western democracies experienced significant resistance to public health measures designed to curb the spread of the COVID-19 virus. Although there were complex reasons for this resistance, right-wing populist forces seem to have played a significant role in fueling it. Studies show a strong correlation between right-wing populist support and resistance to COVID-19-mitigating measures including vaccination, and those who supported these populist movements were more likely to suffer and die from the virus.

TNF-mediated alveolar macrophage necroptosis drives disease pathogenesis during respiratory syncytial virus infection.

Respiratory syncytial virus (RSV) is the major cause of acute bronchiolitis in infants under 2 years old. Necroptosis has been implicated in the outcomes of respiratory virus infections. We report that RSV infection triggers necroptosis in primary mouse macrophages and human monocytes in a RIPK1-, RIPK3- and MLKL-dependent manner.

Avascular Necrosis of the Femoral Head After Palliative Radiotherapy in Metastatic Prostate Cancer: Absence of a Dose Threshold?

Avascular necrosis (AVN) is the final common pathway resulting from insufficient blood supply to bone, commonly the femoral head. There are many postulated etiologies of non-traumatic AVN, including corticosteroids, bisphosphonates, and radiotherapy (RT). However, it is unclear whether there is a dose threshold for the development of RT-induced AVN.

Incidence and significance of inconclusive results in ultrasound for appendicitis in children and teenagers.

Purpose: Frustratingly, sonography to assess for appendicitis in children often leads to an inconclusive report (eg, "suspicious for appendicitis") or nonvisualization of the appendix. To aid in planning who to image and how to interpret the results, we investigated whether these 2 results were more frequent in teenagers than preteens and the prevalence of appendicitis associated with each result.

Methods: We retrospectively reviewed sonographic and surgical findings in patients <18 years (n = 189) referred with clinical suspicion of appendicitis over a 12-month period.

Agenesis of the corpus callosum and cerebral anomalies in inborn errors of metabolism.

Dysgenesis of the corpus callosum has been recognized as a marker for aberrant development of the central nervous system. It has been suggested that developmental defects of the corpus callosum may be more frequently encountered in patients with inborn errors of metabolism. The objectives of the present study were to determine the prevalence of developmental defects of the corpus callosum in patients attending a genetics-metabolic disorders clinic, to describe the spectrum of abnormalities in brain development in patients with confirmed inborn errors of metabolism and abnormalities of the corpus callosum as ascertained by neuroimaging and/or postmortem studies.

A case of the otogenic variant of Lemierre's syndrome with atypical sequelae and a review of pediatric literature.

We report a case of an 8-year-old girl who presented with the clinical picture of Lemierre's syndrome (LS) secondary to bilateral mastoiditis. She developed unilateral sensorineural hearing loss (SNHL) along with internal jugular vein (IJV) thrombosis, septic arthritis of her ankle and cervical fasciitis. Combined antimicrobial, anticoagulant and surgical treatment helped reverse all the effects of the sequelae, including nearly all the hearing loss.

Preliminary crystallographic studies of Limulus polyphemus hemocyanin subunits IIIa, IIIb and IV.

Crystals of Limulus hemocyanin subunits IIIa, IIIb and IV are suitable for X-ray diffraction analysis. The three-dimensional structure of subunit IV is determined by molecular replacement and non-crystallographic symmetry averaging methods. A tentative model of subunit IIIa is obtained from a partial data set.

Dissecting hematoma of intracranial internal carotid artery in an 8-year-old girl.

Background: An 8-year-old girl had a minor fall without head trauma and she collapsed the following day while playing. She was awake but mute with focal neurologic signs when admitted to hospital. Radiologic imaging studies showed a progressive left cerebral infarct with left hemisphere vascular narrowing and beading.

Aetiology and outcome of pneumonia in human immunodeficiency virus-infected children hospitalized in South Africa.

Unlabelled: To determine the aetiology and outcome of pneumonia in human immunodeficiency virus (HIV)-infected children, we prospectively investigated 250 children hospitalized with pneumonia who were known or clinically suspected to be HIV-positive, or who required intensive care support in Cape Town, South Africa. Blood culture, induced sputum or bronchoalveolar lavage, nasopharyngeal aspirate and gastric lavage were performed. Of the total, 151 children (60.

Pneumocystis carinii pneumonia in South African children infected with human immunodeficiency virus.

Background: Pneumocystis carinii pneumonia (PCP) has been regarded as uncommon in HIV-infected patients in Africa, but diagnostic difficulties and geographic variability may partly account for this. There is little information on the incidence of PCP in HIV-infected children in Africa.

Aim: To investigate (1) the incidence and associated features of PCP in African HIV-infected children and (2) the usefulness of sputum induction and nasopharyngeal aspirates (NPAs) for diagnosis of PCP.

Pyogenic spondylitis and early tuberculous spondylitis in children: differential diagnosis with standard radiographs and computed tomography.

In a study of 23 patients, axial computed tomography (CT) was the most valuable modality to differentiate between early tuberculous (10 patients) and pyogenic spondylitis (13 patients). Tuberculous spondylitis showed large erosions with calcification, whereas pyogenic spondylitis showed multiple small well-defined erosions, mostly without calcification. Both groups had large or small paravertebral soft tissue swelling, with accompanying calcification, in six of the 10 patients with tuberculous spondylitis and in only one patient with pyogenic spondylitis.

Intrahepatic fetus-in-fetu: a case report and review of the literature.

The authors report the third case since 1964 of fetus-in-fetu presenting at Red Cross Children's Hospital. A fetal liver abnormality was detected during routine antenatal ultrasound scan, and the postnatal diagnosis of an intrahepatic, multiple fetus-in-fetu was made with abdominal ultrasound scan, plain radiograph of the abdomen and computed tomography. The mass was removed surgically by hemihepatectomy when the patient was 4 months of age.

Caregiving and developmental factors differentiating young at-risk urban children showing resilient versus stress-affected outcomes: a replication and extension.

This study tested hypotheses from an organizational-developmental model for childhood resilience. In this model resilience reflects a child's mastery of age-salient objectives, in the face of substantial adversity, by drawing on internal and external resources that enhance processes of adaptation specific to each developmental stage. Interviews were conducted with parents of 122 7- to 9-year-old urban children exposed to multiple risk factors, 69 classified as resilient and 53 as maladjusted.

Crystal packing induces a conformational change in profilin-I from Acanthamoeba castellanii.

Profilin-I from Acanthamoeba castellanii is a 13-kDa protein that binds actin and poly-l-proline. The native protein has been crystallized in two different but closely related forms. The second form proved more amenable to three-dimensional structural determination using heavy-atom isomorphous methods to obtain crystallographic phase information.

Follow-up study of young stress-affected and stress-resilient urban children.

Reports follow-up study of 181 young highly stressed urban children, classified as stress-resilient (SR) and stress-affected (SA) 1 1/2-2 years earlier. At follow-up (T2), children were retested on five initial (T1) test measures: self-rated adjustment, perceived competence, social problem solving, realistic control attributions, and empathy; parents and teachers did new child adjustment ratings, and parents participated in a phone interview focusing on the T1-T2 interval. Child test and adjustment measures and parent interview responses at T2 sensitively differentiated children classified as SR and SA at T1.

Nitrate binding to Limulus polyphemus subunit type II hemocyanin and its functional implications.

The horseshoe crab, Limulus polyphemus, employs hemocyanin as an oxygen carrier in its hemolymph. This hemocyanin displays cooperative oxygen binding and heterotropic allosteric regulation by protons, chloride ions and divalent cations. Here, we report the crystal structure of Limulus polyphemus subunit type II hemocyanin with a nitrate ion bound in the interface of its first and second domains.

X-ray structures of isoforms of the actin-binding protein profilin that differ in their affinity for phosphatidylinositol phosphates.

We determined the structures of Acanthamoeba profilin I and profilin II by x-ray crystallography at resolutions of 2.0 and 2.8 A, respectively.

Crystallographic analysis of oxygenated and deoxygenated states of arthropod hemocyanin shows unusual differences.

The X-ray structure of an oxygenated hemocyanin molecule, subunit II of Limulus polyphemus hemocyanin, was determined at 2.4 A resolution and refined to a crystallographic R-factor of 17.1%.

Residential radon exposure and lung cancer--an epidemiological study of Norwegian municipalities.

The study is based on a collaboration between the Cancer Registry of Norway, the Norwegian Radiation Protection Authority, and National Radiological Protection Board (NRPB, UK). The association between indoor radon exposure and lung cancer was studied in 427 municipalities. NRPB detectors were sent to 10,000 households, and 7,500 of the detectors were returned.

Crystal structure of deoxygenated Limulus polyphemus subunit II hemocyanin at 2.18 A resolution: clues for a mechanism for allosteric regulation.

The crystal structure of Limulus polyphemus subunit type II hemocyanin in the deoxygenated state has been determined to a resolution of 2.18 A. Phase information for this first structure of a cheliceratan hemocyanin was obtained by molecular replacement using the crustacean hemocyanin structure of Panulirus interruptus.