Nontangential limits and Fatou-type theorems on post-critically finite self-similar sets

In this paper we study the boundary limit properties of harmonic functions on $\mathbb R_+\times K$, the solutions $u(t,x)$ to the Poisson equation $$\frac{\partial^2 u}{\partial t^2} + \Delta u = 0,$$ where $K$ is a p.c.f. set and $\Delta$ its Laplacian given by a regular harmonic structure. In particular, we prove the existence of nontangential limits of the corresponding Poisson integrals, and the analogous results of the classical Fatou theorems for bounded and nontangentially bounded harmonic functions.Comment: 22 page

Blood lactate levels in 31 female dogs with pyometra

<p>Abstract</p> <p>Background</p> <p>Canine pyometra is a life-threatening disease common in countries where spaying of dogs is not routinely performed. The disease is associated with endotoxemia, sepsis, systemic inflammatory response syndrome (SIRS) and a 3–4% mortality rate. Blood lactate analysis is clinically valuable in predicting prognosis and survival, evaluating tissue perfusion and treatment response in human and veterinary critical care settings. The aims of the present study were to investigate 1) the blood lactate levels of female dogs with pyometra by a hand-held analyser and 2) if these levels are related with the clinical status or other biochemical or hematological disorders.</p> <p>Methods</p> <p>In total 31 female dogs with pyometra admitted for surgical ovariohysterectomy and 16 healthy female control dogs were included in the present study. A complete physical examination including SIRS-status determination was performed. Blood samples for lactate concentrations, hematological and biochemical parameters, acid-base and blood gas analysis and other laboratory parameters were collected and subsequently analysed. The diagnosis pyometra was verified with histopathological examination of the uterus and ovaries. Increased hospitalisation length and presence of SIRS were used as indicators of outcome.</p> <p>Results</p> <p>In the pyometra group the median blood lactate level was 1,6 mmol l^-1(range <0.8–2.7 mmol l^-1). In the control group the median lactate level was 1,2 mmol l^-1(range <0.8–2.1 mmol l^-1). Of the 31 bitches 19 (61%) fulfilled 2 or more criteria for SIRS at inclusion, 10 bitches (32%) fulfilled 3 of the SIRS criteria whereas none accomplished more than 3 criteria. Lactate levels did not differ significantly between the pyometra and control group, or between the SIRS positive and SIRS negative dogs with pyometra. Increased lactate concentration (>2.5 mmol l^-1) was demonstrated in one female dog with pyometra (3%), and was not associated with longer hospitalisation or presence of SIRS. Lactate measurement was not indicative of peritonitis. None of the bitches died during or within two months of the hospital stay. The measurements of temperature, heart rate, respiratory rate, percentage bandforms of neutrophilic granulocytes, α₂-globulins, creatinin, pvCO₂, TCO₂and base excess showed significant differences between the SIRS positive and the SIRS negative pyometra cases.</p> <p>Conclusion</p> <p>Increased blood lactate concentrations were demonstrated in 3% (1/31), and SIRS was present in 61% (19/31) of the female dogs with pyometra. Preoperative lactate levels were not related with presence of SIRS or prolonged hospitalisation. Lactate measurement was not indicative of peritonitis. The value of a single and repeated lactate analysis in more severely affected cases remains to be determined.</p

Advances in structure elucidation of small molecules using mass spectrometry

The structural elucidation of small molecules using mass spectrometry plays an important role in modern life sciences and bioanalytical approaches. This review covers different soft and hard ionization techniques and figures of merit for modern mass spectrometers, such as mass resolving power, mass accuracy, isotopic abundance accuracy, accurate mass multiple-stage MS(n) capability, as well as hybrid mass spectrometric and orthogonal chromatographic approaches. The latter part discusses mass spectral data handling strategies, which includes background and noise subtraction, adduct formation and detection, charge state determination, accurate mass measurements, elemental composition determinations, and complex data-dependent setups with ion maps and ion trees. The importance of mass spectral library search algorithms for tandem mass spectra and multiple-stage MS(n) mass spectra as well as mass spectral tree libraries that combine multiple-stage mass spectra are outlined. The successive chapter discusses mass spectral fragmentation pathways, biotransformation reactions and drug metabolism studies, the mass spectral simulation and generation of in silico mass spectra, expert systems for mass spectral interpretation, and the use of computational chemistry to explain gas-phase phenomena. A single chapter discusses data handling for hyphenated approaches including mass spectral deconvolution for clean mass spectra, cheminformatics approaches and structure retention relationships, and retention index predictions for gas and liquid chromatography. The last section reviews the current state of electronic data sharing of mass spectra and discusses the importance of software development for the advancement of structure elucidation of small molecules

Children's Perceptions About the Quality of Pediatric Nursing Care: A Large Multicenter Cross-Sectional Study

INTRODUCTION: This study explored children's perceptions about the quality of nursing care and the determinants of their evaluations according to different categories of children's ages. DESIGN: Multicenter cross-sectional study carried out on 692 pediatric patients in eight large Italian regional hospitals. METHODS: We used a validated questionnaire, translated and adapted to the Italian context, consisting of 49 items (5-point Likert scale) exploring nurse characteristics, nursing activities, and nursing environment. FINDINGS: The mean score of children's perceptions of their overall experience of hospitalization was 3.96; the nurse characteristics factor obtained the highest score (mean = 3.79), and it was in positive correlation with the satisfaction level across different age categories: 4 to 6 years, β = .37; 7 to 11 years, β = .31; and 12 to 14 years, β = .32. CONCLUSIONS: Nurse characteristics is the only significant factor contributing to children's satisfaction across the three different age categories. CLINICAL RELEVANCE: In pediatric nursing care, it is important to emphasize that nurses' personal characteristics and the ability to connect with children are essential compared to the ability to perform tasks

Evaluation of cardiac troponin I as a predictor of death in critically ill cats

Abstract Background Abnormally high serum cardiac troponin I (cTnI) concentration, reflecting leakage from or necrosis of cardiomyocytes, is a negative prognosticator for death in dogs. Objectives To investigate in critically ill cats whether serum cTnI concentration is abnormally high, identify conditions associated with abnormally high cTnI concentrations, and evaluate cTnI as an independent prognosticator for death and a potential coprognosticator to the acute patient physiologic and laboratory evaluation (APPLE) score in cats. Animals One hundred nineteen cats admitted to intensive care units (ICU) and 13 healthy cats at 2 university teaching hospitals. Methods Prospective study. Clinical examinations were performed, APPLE scores calculated, and serum cTnI and serum amyloid A (SAA) measured within 24 hours after admission. Outcome was defined as death/euthanasia or survival to discharge, 28 and 90 days after ICU‐admission. Prognostic capacity of cTnI, APPLE scores and models combining cTnI and scores were evaluated by receiver‐operator‐characteristic analyses. Results Median (IQR) serum cTnI concentration was higher in ill (0.63 [0.18‐2.65] ng/mL) compared to healthy (0.015 [0.005‐0.041] ng/mL) cats (P 5 mg/L (0.84 [0.23‐2.81] ng/mL; P = .009) than in cats without these characteristics (0.45 [0.12‐1.70] and 0.35 [0.015‐0.96] ng/mL). The in‐hospital case fatality rate was 29%. Neither serum cTnI concentration for all critically ill cats (area‐under‐the‐curve 0.567 [95% CI 0.454‐0.680], n = 119) or subgroups (0.625 [0.387‐0.863], n = 27; 0.506 [0.360‐0.652], n = 86), nor APPLE scores (fast 0.568 [0.453‐0.682], full 0.585 [0.470‐0.699], n = 100), were significant prognosticators for death. Conclusions and Clinical Importance Abnormally high serum cTnI concentration was common in critically ill cats. Unlike in dogs, cTnI did not confer prognostic information regarding death

O brincar em sala de espera de um Ambulatório Infantil: a visão dos profissionais de saúde

O objetivo deste estudo foi compreender, na perspectiva dos profissionais de saúde, o significado do uso do brincar/brinquedo em sala de espera de um ambulatório infantil. Realizaram-se entrevistas semiestruturadas com 11 trabalhadores. Procedeu-se à análise qualitativa dos dados, os quais foram organizados ao redor de dois temas: reconhecimento da importância do brincar/brinquedo e lidando com limitações. O brincar mostra-se como uma estratégia de cuidado à criança, pois ameniza o tempo de espera neste ambiente, altera positivamente o comportamento e valoriza o processo de desenvolvimento das mesmas, além de melhorar a comunicação e a interação com os profissionais da saúde. É preciso, entretanto, que exista uma estrutura física adequada do hospital, aliada aos profissionais de saúde e à equipe gestora sensíveis para a inclusão de novas estratégias de cuidado, a exemplo do brincar, a fim de humanizar a assistência à saúde da criança