Eriksenalvarez9959
Coordination polymers (CPs), new functional hybrid materials, have received important attention due to their structural features and many different applications such as gas storage, catalysis, energy storage, small molecule adsorption, luminescence, and chemical sensors. In this study, two newly synthesized metal-organic frameworks (MOFs); [Mn2(µ4-dmg)-(µ4-dmg)(µ-bipy)]n (CP1) and [Mn2(µ4-dmg)(µ4-dmg)(µ-dpeten)]n (CP2); were used for sensing of gaseous carbon dioxide with a spectrofluorometric method with a dye, 8-hydroxypyrene-1, 3, 6-trisulfonic acid (HPTS) as matrix additive material for the first time. The ion-pair form of the HPTS was used in the polymethyl methacrylate matrix as a thin film form. When the HPTS based sensing slides along with the CPs, resulted in many advances such as high relative signal change and larger linear response range, improved sensor dynamics, and higher sensitivity with respect to the additive-free form. More specifically, in the presence of silver nanoparticles (AgNPs), the variation in relative signal intensities of CP1 and CP2 doped HPTS sensing agents were measured as 60 and 40% for the concentration range of 0-10% pCO2, respectively. The aim of this study is to enhance the CO2 response of HPTS with doped CPs due to their useful attributes and potential applications containing selective gas absorption.The terahertz (THz) absorption spectra of coumarin and 6-methylcoumarin have been investigated by terahertz time-domain spectroscopy (THz-TDS) system in the frequency range from 0.4 to 2.8 THz. Density functional theory (DFT) calculations, both with and without London force dispersion corrections, have been used for the assignment of the experimental THz spectra. To thoroughly interpret the spectrum information, we used potential energy distribution (PED) method to assign the vibrational modes of the absorption peaks, and identify the origin of the absorption peaks by electrostatic potential (ESP) and van der Waals (vdW) potential distribution analysis method. The results show that absorption peaks both for coumarin and 6-methylcoumarin are caused by electrostatic interaction in the lower frequency range, while vdW interaction in the higher frequency. Moreover, the potential energy distribution of electrostatic and vdW between them is basically the same, and it led to the similarity of THz spectra between coumarin and 6-MC. Proteases inhibitor This work has demonstrated that using THz spectroscopy combined with DFT calculations is an effective way to analysis of intermolecular weak interactions and biomolecules with similar structures.Traumatic brain injury (TBI), meaning functional or structural brain damage which appear as a result of the application of the external physical force, constitutes the main cause of death and disability of individuals and a great socioeconomic problem. To search for the new therapeutic strategies for TBI, better knowledge about posttraumatic pathological changes occurring in the brain is necessary. Therefore in the present paper the Fourier transform infrared microspectroscopy and Raman microscopy were used to examine local and remote biochemical changes occurring in the rat brain as a result of focal cortex injury. The site of the injury and the dorsal part of the hippocampal formation together with the above situated cortex and white matter were the subject of the study. The topographic and quantitative biochemical analysis followed with the statistical study using principal component analysis showed significant biomolecular anomalies within the lesion site but not in the area of the dorsal hippocampal formation and in the above situated white matter and cortex. The observed intralesional anomalies included significantly decreased accumulation of lipids and their structural changes within the place of injury. Also the levels of compounds containing phosphate and carbonyl groups were lower within the lesion site comparing to the surrounding cortex. The opposite relation was, in turn, found for the bands characteristic to proteins and cholesterol/cholesterol esters.
Mortality is increased in bipolar disorder due to both suicide and death by physical disorders, but it has never been investigated whether these mortalities translate into relatives to patients with bipolar disorder. The aim was to present the life expectancy and the overall mortality and mortality due to suicide and physical disorders among patients with bipolar disorder and their unaffected full siblings, respectively, compared with control individuals from the general population.
We used Danish nation-wide population-based longitudinal register linkage to identify 19.955 patients with bipolar disorder, their 13.923 siblings and 20 sex, age and calendar matched control individuals from the general population. Follow-up was from 1995 to 2017.
Bipolar disorder was associated with a decreased life expectancy of 7.7 (95% CI 7.4-8.1) years and increased mortality overall (hazard ratio (HR) 2.11 (95% CI 2.04-2.18)) and due to suicide (HR 18.23 (95% CI 15.81-21.02) and physical disorders (HR 2.01 (95% CI 1.94-2.08). In contrast, siblings to patients with bipolar disorder who were unaffected by bipolar disorder did not have decreased life expectancy (0.45 (95% CI -6.62-2.46)) or increased mortality overall (HR 1.00 (95% CI 0.88-1.14) or due to suicide (HR 1.50 (95% CI 0.95-2.36) or physical disorders (HR 0.99 (95% CI 0.87-1.34).
Increased mortality in bipolar disorder is mainly due to the impact of bipolar psychopathology and to a lesser degree to familial transmitted factors, highlighting the urgent need for preventive intervention studies in relation to suicide and physical disorders following onset of bipolar disorder.
Increased mortality in bipolar disorder is mainly due to the impact of bipolar psychopathology and to a lesser degree to familial transmitted factors, highlighting the urgent need for preventive intervention studies in relation to suicide and physical disorders following onset of bipolar disorder.
Poor sleep quality exacerbates subjective cognitive decline (SCD). Mental health may play an important role in the relationship, but the potential underlying mechanisms remain unknown.
A cross-sectional study was conducted on older adult residents in Guangdong province, south China from November 2020 to March 2021. A total of 717 adults aged 60 years and over were recruited for a face-to-face investigation on a range of socio-demographic factors, lifestyle behaviors, sleep quality, SCD, depressive and anxiety symptoms. Parallel, serial and moderated mediation models were used to examine whether depression and anxiety mediated in the poor sleep quality-SCD linkage.
Both direct and indirect effects of poor sleep quality on SCD symptoms were found. Anxiety and depressive symptoms mediated the relationship between poor sleep quality and SCD symptoms(β
= 0.123, 95%CI 0.079 to 0.173; β
=0.274, 95%CI 0.200 to 0.348), respectively. Serial mediation analyses indicated that depressive and anxiety symptoms co-play a serial mediating role in the association of poor sleep quality and SCD symptoms (β
=0.052, 95% CI 0.026 to 0.084; β
=0.077, 95% CI 0.033 to 0.128). Moderated mediation model revealed that the mediation of depressive symptoms on the relationship between poor sleep quality and SCD symptoms was moderated by anxiety symptoms(β=0.318, 95% CI 0.164 to 0.472).
The study is the cross-sectional design, which limits the causal inference ability.
These findings provided new insights into possible avenues for prevention and intervention on SCD through sleep-based treatments with a multi-faceted approach on psychiatric disorders.
These findings provided new insights into possible avenues for prevention and intervention on SCD through sleep-based treatments with a multi-faceted approach on psychiatric disorders.
The transition to motherhood is associated with the emergence or exacerbation of symptoms of emotional distress disorders for many women. Although adolescence is a developmental period of increased risk for mood disorders and emotion dysregulation among women, little is known about changes in emotional distress across the early postpartum years among adolescent mothers. We tested the hypothesis that symptoms of depression and borderline personality disorder (BPD) would differ between pregnant and non-pregnant adolescents, and that these differences would be maintained in the three years following delivery.
Data were drawn from the longitudinal Pittsburgh Girls Study 307 adolescent mothers (14-18 years) and 307 never-pregnant adolescents, matched on age, race and household receipt of public assistance, self-reported severity of depression and BPD across four years.
There were no group differences on depression severity during or after pregnancy. However, compared with their non-pregnant peers, pregnant adolescents reported more severe BPD symptoms even after comorbid depression symptoms were accounted for, and this group difference was sustained during the following three years.
Findings are based on a community sample rather than a clinical sample, which may have limited the severity of symptoms captured.
Findings suggest that adolescent mothers are a high-risk group for BPD symptoms during and after pregnancy, highlighting pregnancy as a critical window of opportunity to reduce morbidity among young mothers and potential negative effects on the next generation.
Findings suggest that adolescent mothers are a high-risk group for BPD symptoms during and after pregnancy, highlighting pregnancy as a critical window of opportunity to reduce morbidity among young mothers and potential negative effects on the next generation.
Family resilience and its role in behavioral and mental health problems has not been well documented among U.S. adolescents, especially those with ADHD.
Using data from the 2016 and 2017 National Survey of Children's Health (NSCH), we examined associations between family resilience connection index (FRCI) and conduct problems, depression, anxiety, and substance abuse in adolescents with ADHD aged 11-17 (n=4,169). Data were analyzed using multivariate logistic regression and chi-square tests.
Adolescents with ADHD who had a lower FRCI score were more likely to have conduct problems (OR1.64, CI1.13-2.38) and depression (OR 3.08, CI 2.12-4.49). There were small differences between adjusted and unadjusted odds after controlling for adverse childhood experience and other covariates.
We could not assert prediction or causation, only associations among variables, due to the cross-sectional design of the 2016-2017 NSCH; however, a major advantage of the NSCH is that it includes a nationally representative sample of children and allows inferences to be made for understanding of the adolescents with ADHD in the U.S.
Findings suggest that family resilience may serve as a protective factor that leads to decreasing conduct problems, despite experiencing adversity in childhood. Targeting family resilience, in terms of teaching families ways to cope with adversities such as a child's diagnosis of ADHD; behavioral problems, and/or other adverse experiences in children's environments, has great potential to reduce adolescents' conduct and mental health problems.
Findings suggest that family resilience may serve as a protective factor that leads to decreasing conduct problems, despite experiencing adversity in childhood. Targeting family resilience, in terms of teaching families ways to cope with adversities such as a child's diagnosis of ADHD; behavioral problems, and/or other adverse experiences in children's environments, has great potential to reduce adolescents' conduct and mental health problems.