Notes

Gentianella lutescens subsp. carpatica J. Holub.: Take Reproduction Within Vitro and also Aftereffect of Sucrose and Elicitors upon Xanthones Creation.
Ferroelectricity exists in a variety of three- and two-dimensional materials and is of great significance for the development of electronic devices. However, the presence of ferroelectricity in one-dimensional materials is extremely rare. Here, we predict ferroelectricity in one-dimensional SbN and BiN nanowires. Their polarization strengths are 1 order of magnitude higher than ever reported values in one-dimensional structures. Moreover, we find that spontaneous spin polarization can be generated in SbN and BiN nanowires by moderate hole doping. This is the first time the coexistence of both ferroelectricity and ferromagnetism in a one-dimensional system has been reported. Our finding not only broadens the family of one-dimensional ferroelectric materials but also offers a promising platform for novel electronic and spintronic applications.We realized a single-mode laser with an ultra-high quality factor in individual cesium lead bromide (CsPbBr3) perovskite micro-hemispheres fabricated by chemical vapor deposition. A series of lasing property analysis based on cavity size was reported under this material system. Due to good optical confinement capability of the whispering gallery resonant cavity and high optical gain of CsPbBr3 perovskite micro-hemispheres, single-mode lasing behavior was achieved with an ultra-high quality factor as large as 11,460 at room temperature. To study in detail the physical effects between lasing threshold and cavity, a set of cavity size dependence photoluminescence analyses were performed. We found that the lasing threshold increases while the cavity size decreases. Time-resolved PL analysis was conducted to confirm the relation between cavity size and lasing threshold. The larger cavity stands for longer PL lifetime and indicates easier-to-achieve carrier population inversion. Strong Purcell enhancement could be further investigated by the spontaneous emission coupling factor β and internal quantum efficiency as a function of cavity size. A high β-factor of 0.37 could be obtained from a 2.2 μm diameter hemisphere microcavity and a high Purcell factor of 14 in a 1.9 μm diameter hemisphere microcavity showing strong Purcell enhancement effect in our system.
Various methods to insert postpyloric feeding tubes at the bedside have been reported, but the optimal method remains controversial. The objective of this study was to evaluate the effect of ultrasound-guided postpyloric feeding tube placement in critically ill children.

Single-center retrospective observational study.

PICU of tertiary children's hospital.

Children under the age of 16 who underwent postpyloric feeding tube placement in our PICU between September 2017 and August 2019.

None.

A total of 115 patients were included in this study 30 patients underwent ultrasound-guided postpyloric feeding tube placement and 85 patients underwent blind postpyloric feeding tube placement; the insertion attempts were 32 and 93, respectively. There were no significant differences in patient demographics between the ultrasound-guided group and the blind group. The first-pass success rate of the ultrasound-guided group was higher than that of the blind group (94% [30/32] vs 57% [53/93]; p < 0.001). The median insertion time in the ultrasound-guided group with successful postpyloric feeding tube insertion was 18 minutes (interquartile range, 15-25; range, 8-45; n = 21). There were no complications or adverse events during the placement.

In this single-center study, ultrasound-guided postpyloric feeding tube placement was feasible and a significantly high first-pass success rate was observed for critically ill children. Additional investigation with a larger pool of operators and randomized controlled patient assignment is required.
In this single-center study, ultrasound-guided postpyloric feeding tube placement was feasible and a significantly high first-pass success rate was observed for critically ill children. Additional investigation with a larger pool of operators and randomized controlled patient assignment is required.
To describe characteristics and outcomes of children with burn injury treated in U.S. PICUs.

Retrospective study of admissions in the Virtual Pediatric Systems, LLC, database from 2009 to 2017.

One hundred and seventeen PICUs in the United States.

Patients less than 18 years old admitted with an active diagnosis of burn at admission.

None.

A total of 2,056 patients were included. They were predominantly male (62.6%) and less than 6 years old (66.7%). Cutaneous burns were recorded in 92.1% of patients, mouth/pharynx burns in 5.8%, inhalation injury in 5.1%, and larynx/trachea/lung burns in 4.5%. Among those with an etiology recorded (n = 861), scald was most common (38.6%), particularly in children less than 2 years old (67.8%). Fire/flame burns were most common (46.6%) in children greater than or equal to 2 years. Multiple organ failure was present in 26.2% of patients. Most patients (89%) were at facilities without American Burn Association pediatric verification. PICU mortality occurred in 4.5% specialized facilities may be particularly important in this population, especially for those with higher % total body surface area burned or inhalation injury.
Burn-injured patients in U.S. PICUs have a substantial burden of organ failure, morbidity, and mortality. Coordination among specialized facilities may be particularly important in this population, especially for those with higher % total body surface area burned or inhalation injury.
It is unknown whether children with acute kidney injury during PICU admission have kidney function monitored after discharge. Objectives 1) describe postdischarge serum creatinine monitoring after PICU acute kidney injury and 2) determine factors associated with postdischarge serum creatinine monitoring.

Secondary analysis of longitudinal cohort study data.

Two PICUs in Montreal and Edmonton, Canada.

Children (0-18 yr old) surviving PICU admission greater than or equal to 2 days from 2005 to 2011. Exclusions postcardiac surgery and prior kidney disease. Exposure acute kidney injury by Kidney Disease Improving Global Outcomes serum creatinine definition.

None.

Primary outcome postdischarge serum creatinine measured by 90 days, 1 year, and 5-7 years.

Healthcare events and nephrology follow-up.

Proportions with outcomes; logistic regression to evaluate factors associated with the primary outcome. Kaplan-Meier analysis of time to serum creatinine measurement and healthcare events.

Of n = 277, 69U acute kidney injury survivors have serum creatinine measured within 1-year postdischarge and follow-up is suboptimal for children developing long-term kidney sequelae. Knowledge translation strategies should emphasize the importance of serum creatinine monitoring after childhood acute kidney injury.
Half of PICU acute kidney injury survivors have serum creatinine measured within 1-year postdischarge and follow-up is suboptimal for children developing long-term kidney sequelae. Knowledge translation strategies should emphasize the importance of serum creatinine monitoring after childhood acute kidney injury.The term undifferentiated connective tissue disease (UCTD) describe patients presenting with clinical and serological manifestations of systemic autoimmune diseases but not fulfilling the criteria for any defined connective tissue diseases. The challenge is to differentiate patient with a stable UCTD from patients that will evolve to a connective tissue disease with therapeutic and prognostic impact. This article describe UTCD concept, clinical presentation, evolution, and prognostic factors and patients management.The connectivitides are autoimmune diseases that affect many organs. All of them can cause interstitial lung disease, the most frequent forms being the NSIP (nonspecific interstitial pneumonia) and the UIP (usual interstitial pneumonia). The best screening method is the high-resolution chest CT. The treatment of ILD includes glucocorticoids, immunosuppressive and antifibrotic agents, as well as non-pharmacological therapies. We present the screening and treatment algorithm for the ILD in systemic sclerosis, which is very well established. We also discuss the management of the ILD in rheumatoid arthritis, a very prevalent disease, and though of large public interest.This article synthesizes the main aspects of the management of systemic lupus erythematosus patients in the context of the COVID-19 pandemic based on published literature. We will therefore develop on topics such as the risk of getting infected, the differences in COVID-19 clinical course and severity compared to general population, the role of antiphospholipid antibodies in thrombotic complications, and treatment strategies.Inflammatory myopathies are characterized by muscle weakness, occasionally pain, and an inflammatory infiltrate of the skeletal muscle. Despite the description of novel autoantibodies and advances in imaging, the lack of universal consensus on classification criteria and routine clinical use of validated outcome measures has direct implications on treatment trials and observational registries. In this article we discuss the differential diagnosis and prognosis of the idiopathic inflammatory myopathies.Sjögren's syndrome (SS) is an auto-immune condition involving salivary and lacrymal glands leading to dry mouth and dry eyes symptoms. Linsitinib clinical trial Some patients also present with systemic manifestations. Diagnosis of SS is made after clinical, serological, and histological assessment according to the American College of Rheumatology and European League Against Rheumatism (EULAR) classification criteria. Recent clinical trials showed a significant decrease of systemic activity of SS in patients treated with iscalimab (anti-CD40) and ianalumab (anti-BAFF-R). These results need to be confirmed in larger studies. However, two phase 3 randomized trials did not show efficacy treating SS with abatacept. We also describe in this article the first EULAR recommendations on SS management.When screening anti-nuclear antibodies (ANAs) by immunofluorescence, a positive result is often found in subjects without proven autoimmune pathologies. The observed pattern is then very frequently « dense fine speckled » (DFS). The ANAs responsible for this aspect are directed against the DFS70/LEDGF protein and are present in 2-22% of healthy subjects while they are very rarely found in patients suffering from systemic autoimmune rheumatic diseases (SARD). When isolated, with no other detectable specific anti-nuclear antibodies, anti-DFS70 is even considered a negative predictor for the development of a SARD. It is therefore interesting to identify and then confirm the presence of these autoantibodies when investigating the significance of ANAs.Freshwater fish are restricted by their physiology to rivers and lakes, and are generally limited in their capacity to disperse across basins. As a result, there is often a close match between the evolutionary history of river basins and their natural history. Thus, the regional landscape and ecological features, such as temperature, have shaped the evolution and adaptation of local fish assemblages. Climate change is expected to affect fish diversity and increase extinction, especially in low latitudes, and it has been suggested that species that inhabit low latitude species are more susceptible since they live close to their maximum thermal limits and have low capacity for acclimation. To understand the mechanisms of variation in thermal tolerance across a broad-scale of South American fishes is fundamental to be able to assess the vulnerability of species and habitat to global warming. Herein, we present the first attempt to analyze the vulnerability of South American freshwater fish species, based on the review of upper thermal limits of 106 species from a broad range of latitudinal habitats.
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