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Real‐time and in‐line transversal monitoring of ionizing radiation beams is a crucial task for several applications which span from medical treatments to particle accelerators in high energy physics. Here a flexible and large area device based on 2D hybrid perovskite thin films (phenylethylammonium lead bromide), fabricated onto a thin flexible polyimide substrate, able to map the transversal beam profile of high energy radiation beams is reported. The performance of this novel tool is here compared with the one offered by standard commercial large‐area technology, namely radiochromic sheets. The great potential of this class of devices is demonstrated by successfully mapping in real‐time a 5 MeV proton beam at fluxes between 108 and 1010 H+ s−1 cm−2, confirming the capability to operate in a radiation‐harsh environment without output signal saturation issues. The versatility and scalability of here proposed detecting system are demonstrated by the development of a multipixel array able to map in real‐time a 40 kVp X‐ray beam spot (dose rate 8 mGy s−1). Perovskite thin film‐based detectors are thus assessed as a very promising class of thin, flexible devices for real‐time, in‐line, large‐area, conformable, reusable, transparent, and low‐cost transversal beam monitoring of different ionizing radiation. [ABSTRACT FROM AUTHOR]

Exploring the surface organometallic chemistry on silica of highly electrophilic yttrium complexes is a relatively uncommon endeavor, particularly when focusing on tris‐alkyl complexes characterized by Y−C σ‐alkyl bonds. A drawback with this class of complexes once grafted on silica, is the frequent occurrence of alkyl transfer by ring opening of siloxane groups, resulting in a mixture of species. Herein, we employed a more stable homoleptic yttrium allyl complex bearing bulky η3‐1,3‐bis(trimethylsilyl)allyl ligand to limit this transfer reaction. This strategy has been validated by comparing the reactivity between [Y{ η3‐1,3‐C3H3(SiMe3)2}3] and [Y(o‐CH2PhNMe2)3] with SiO2–700, where the undesired alkyl transfer reaction occurred for [Y(o‐CH2PhNMe2)3] leading to a bipodal [(≡SiO)2Y(o‐CH2PhNMe2)] as major surface species, 2, while [Y{ η 3‐1,3‐C3H3(SiMe3)2}3] resulted selectively in a monopodal species, [(≡SiO)Y{η3‐1,3‐C3H3(SiMe3)2}2], 1. The materials obtained were characterized by DRIFT, solid state NMR, mass balance analysis and EXAFS. Catalyst 1 showed high activity compared to 2 in ethylene polymerization. The catalytic performance of this neutral catalyst 1 was extended to pre‐industrial scale in the presence of hydrogen and 1‐hexene. An unprecedented activity, up to 7400 gPE gcat−1 h−1 was obtained even with very low concentration of scavenger AliBu3 (TIBA/Y=1.2). The obtained HDPE exhibited desired spherical particle morphology with broad molar mass distribution. [ABSTRACT FROM AUTHOR]

The aim of this systematic review is to analyze epidemiology, clinical presentation, histopathological features, treatment and oncological outcomes in laryngeal mucoepidermoid cancer (MEC) in order to improve the knowledge on the management of such a rare malignant neoplasm. Specifically, authors highlight patients' and tumors' features about local, regional, and distant recurrence of disease. PRISMA 2020 guidelines were applied in this systematic literature review. A computerized search was performed using the Embase/Pubmed, Scopus, and Cochrane databases, for articles published from 1971 to December 2023. A descriptive and univariate analysis including selected papers with low or intermediate risk of bias was performed. Twenty‐seven papers (11 case series and 16 case reports) were included in this review. Fifty‐six patients were included in the analyses, with a mean age of 56.7 years; 84% of them were males. Most patients (86%) underwent a primary surgical approach. Clinical stage was reported as follows: early stage (26 patients) and locally advance and advanced stage (19 patients). Overall survival (OS) and disease‐free survival (DFS) at 2 years was 80% and 78%, respectively. The mean time to local recurrence was 18.7 months (range 8–36 months). The survival after recurrence is about 85% and 70% at 5 years, respectively. The mean time of lymph node recurrence was 14.7 months (range 7–19 months). Finally, the mean time of distant recurrence was 15 months (range 7–36 months) with a poor prognosis: all patients died due to the disease in a range of 0–7 months after metastasis evidence. Laryngeal MEC is a rare neoplasm of minor salivary glands in the larynx. No guidelines or indications about the management of this neoplasm are reported in the literature. The lower incidence of regional recurrence of the disease and the better OS and DFS underline how the prognosis of MEC is more favorable respect to other malignant histotypes. [ABSTRACT FROM AUTHOR]

Objective: Virtual Reality (VR) has been demonstrated to be an effective option for integrating psychological interventions in different therapeutic settings. This randomized controlled interventional study aims to assess the effects of VR, compared to tablet controlled intervention, on anxiety, depression, pain, and short‐term psychophysical symptoms in advanced cancer patients assisted at home. Methods: Participants were provided with a VR headset or a tablet (TAB) for 4 days. On the first and last day, anxiety and depression were measured by Hospital Anxiety and Depression Scale and pain by Brief Pain Inventory. Before and after each VR and tablet session, symptoms were collected by the Edmonton Symptom Assessment Scale (ESAS). Results: Fifty‐three patients (27 VR vs. 26 TAB) completed the study. Anxiety significantly decreased in the VR group after the 4‐day intervention. The analysis of ESAS showed a significant improvement in pain (p = 0.013), tiredness (p < 0.001), and anxiety (p = 0.013) for TAB group, and a significant reduction in tiredness (p < 0.001) in the VR group. Conclusions: Technological and user‐friendly tools, such as VR and tablets, might be integrated with traditional psychological interventions to improve anxiety and cancer‐related short‐term symptoms. Further studies are needed to better consolidate the possible beneficial effects of VR. [ABSTRACT FROM AUTHOR]

Marina Cretich, a renowned scientist in the field of bioanalytical chemistry, passed away on June 29th, 2024. She made significant contributions to the field, particularly in the areas of advanced methods and materials for biomolecular recognition and high-sensitive biosensors. Marina also focused on extracellular vesicles (EVs) and developed protocols for their isolation and molecular characterization. She was a pioneer in this field and her work has paved the way for further research in the clinical translation of EVs in diagnostics. Marina was not only a brilliant scientist but also a beloved mentor and colleague, known for her kindness and generosity. Her passing is a profound loss to the scientific community. [Extracted from the article]

Corporate profit shifting to tax havens negatively impacts corporate tax revenue, particularly in low‐income countries. Two studies published in 2016 and 2018 have proven this correlation using data from 2013. In this paper, I use the 2021 version of the UNU‐WIDER Government Revenue Dataset (GRD) to estimate government revenue losses in 2019 and to observe possible changes associated with the release of the new dataset. My estimations indicate that global tax revenue losses in 2019 are around USD 480 billion if estimated using statutory tax rates, compared to USD 500 billion in 2013. The volume of tax revenue losses in 2019 increases to USD 600 billion if estimated using effective tax rates. In terms of GDP percentage, my estimations confirm the presence of a higher share of losses in low‐income, and more generally, in non‐OECD countries, and they show a higher intensity of tax avoidance practices in those countries. The results also suggest that the total level of tax revenue losses has plateaued, with no increase in losses occurring since 2013 if estimated using statutory tax rates, while an increasing trend is visible for estimates using effective tax rates, although not with the same magnitudes with respect to others recent studies. [ABSTRACT FROM AUTHOR]

Introduction: Joint bleeds are a common and frequent complication associated with hemophilia, increasing the risk of hemophilic arthropathy. It is important to define and characterize the presence of joint complications in mild hemophilia to develop strategies to mitigate disease burden. Aims: To characterize the prevalence, clinical characteristics of joint bleeds, and risk factors that may lead to hemarthrosis in people with mild hemophilia. Methods: Following Institutional Review Board approval, a retrospective chart review was conducted for patients with mild hemophilia seen at the Yale Hemophilia Treatment Center or Classical Hematology Program. Results: The medical records of 70 patients were reviewed. Eighty one percent were male and 19 percent were female. Twenty individuals with mild hemophilia had a history of joint bleeding, 13 were traumatic bleeds, 7 were spontaneous. The age of first joint bleed ranged from 4 to 58 years old, with an average age of 20.8‐years old. Ten patients developed joint bleeds between the ages of 10 and 20 years old. The most common locations of joint bleeding were the knee (n = 11) and ankle (n = 7). Eight of 70 patients had hepatitis C (HCV), 6 experienced joint bleeding. Conclusions: In this study, almost one third of patients with mild hemophilia experienced joint bleeding, often without history of trauma. Joint range of motion was abnormal in more than a third of the patients with mild hemophilia regardless. These data highlight the need for ongoing evaluation and characterization of joint health in individuals with mild hemophilia. Highlights: Twenty‐nine percent of individuals with mild hemophilia had history of joint bleed.PwH and mild diseases with previous or current hepatitis C had higher likelihood of joint bleeding.Approximately 15% of PwH and mild diseases had abnormal joint examinations without a confirmed history of joint bleeding. [ABSTRACT FROM AUTHOR]

In plants, glutamate dehydrogenase (GDH) is an ubiquitous enzyme that catalyzes the reversible amination of 2‐oxoglutarate in glutamate. It contributes to both the amino acid homeostasis and the management of intracellular ammonium, and it is regarded as a key player at the junction of carbon and nitrogen assimilation pathways. To date, information about the GDH of terrestrial plants refers to a very few species only. We focused on selected species belonging to the division Marchantiophyta, providing the first panoramic overview of biochemical and functional features of GDH in liverworts. Native electrophoretic analyses showed an isoenzymatic profile less complex than what was reported for Arabidposis thaliana and other angiosperms: the presence of a single isoform corresponding to an α‐homohexamer, differently prone to thermal inactivation on a species‐ and organ‐basis, was found. Sequence analysis conducted on amino acid sequences confirmed a high similarity of GDH in modern liverworts with the GDH2 protein of A. thaliana, strengthening the hypothesis that the duplication event that gave origin to GDH1‐homolog gene from GDH2 occurred after the evolutionary bifurcation that separated bryophytes and tracheophytes. Experiments conducted on Marchantia polymorpha and Calypogeia fissa grown in vitro and compared to A. thaliana demonstrated through in gel activity detection and monodimensional Western Blot that the aminating activity of GDH resulted in strongly enhanced responses to ammonium excess in liverworts as well, even if at a different extent compared to Arabidopsis and other vascular species. The comparative analysis by bi‐dimensional Western Blot suggested that the regulation of the enzyme could be, at least partially, untied from the protein post‐translational pattern. Finally, immuno‐electron microscopy revealed that the GDH enzyme localizes at the subcellular level in both mitochondria and chloroplasts of parenchyma and is specifically associated to the endomembrane system in liverworts. [ABSTRACT FROM AUTHOR]

Surveys assessing attitudes and values about the environment can help predict human behavior toward wildlife and develop effective conservation goals alongside local communities. Coastal Alabama, in the southeastern United States, is a hotspot for biodiversity and endemism and needs protection. Land and wildlife management practices in Alabama have moved from indigenous‐led, which is more in harmony with the environment, to larger‐scale exploitative uses for agriculture and plantations. We therefore predicted that a large proportion of the population has a dominant view of the environment in which land and wildlife are primarily for human benefit. To test this hypothesis, we surveyed over 1300 residents in Mobile and Baldwin counties—the two southernmost counties in Alabama—to assess attitudes toward local vertebrate wildlife, knowledge of the region's biodiversity, and whether individuals value protected areas where they live and/or work. As hunting is generally considered a dominant behavior, we used self‐identified hunters versus non‐hunters to examine the relationship between humans and the environment. Overall, hunters would kill or kill to eat more often than non‐hunters, and would kill even when it is not for food. Furthermore, regardless of hunting status, most participants in our survey would kill a snake, indicating that targeted environmental education is needed for this group. Both hunters and non‐hunters, independently of demographic differences including education and income levels, were not familiar with the especially rich biodiversity of the area and would not be willing to invest money to protect it. Our results indicate that targeted education about the unique and rich biodiversity of southern Alabama compared to the rest of the United States is needed to support successful environmental management, conservation actions, and local participation. [ABSTRACT FROM AUTHOR]

The utility of multigene expression assays in advanced (≥ 4 positive lymph nodes) early breast cancer (EBC) is limited. We conducted exploratory transcriptomic analysis of 758 genes (Breast Cancer 360 panel, nCounter® platform; NanoString) in primary tumor samples collected during a phase 3 trial comparing adjuvant taxane‐containing dose‐dense chemotherapy (ddCTX) versus standard‐dosed chemotherapy (stCTX) in resected EBC with ≥ 4 positive lymph nodes. Prognostic and predictive associations with disease‐free survival (DFS) and overall survival (OS) were evaluated by Cox regression with false discovery rate (FDR) adjustment. Data were available from tumor samples of 141/226 patients (median follow‐up: 14 years). Several genes/signatures, including immune markers, showed prognostic relevance in unadjusted analyses. Of these, two remained significant after multiplicity adjustment: a positive effect on DFS of programmed cell death 1 ligand‐2 (PD‐L2) in the ddCTX arm (univariate HR: 0.53, FDR‐adjusted P = 0.036) and a negative effect on OS of HER2‐enriched (HER2‐E) signature in the stCTX arm (univariate HR: 5.40, FDR‐adjusted P = 0.036). Predictive analyses showed greater DFS benefit of ddCTX in tumors with high antigen processing machinery (APM) expression (multivariate interaction P = 0.024). Multigene expression assays have a prognostic and predictive potential in advanced EBC, and further investigation is warranted in order to identify candidates for de‐escalated treatment. In addition, intrinsic subtype and immune gene expression have predictive potential. [ABSTRACT FROM AUTHOR]

RNA sequencing (RNA‐Seq) is popular for measuring gene expression in non‐model organisms, including wild populations. While RNA‐Seq can detect gene expression variation among wild‐caught individuals and yield important insights into biological function, sampling methods can also affect gene expression estimates. We examined the influence of multiple technical variables on estimated gene expression in a non‐model fish, the westslope cutthroat trout (Oncorhynchus clarkii lewisi), using two RNA‐Seq library types: 3′ RNA‐Seq (QuantSeq) and whole mRNA‐Seq (NEB). We evaluated effects of dip netting versus electrofishing, and of harvesting tissue immediately versus 5 min after euthanasia on estimated gene expression in blood, gill, and muscle. We found no significant differences in gene expression between sampling methods or tissue collection times with either library type. When library types were compared using the same blood samples, 58% of genes detected by both NEB and QuantSeq showed significantly different expression between library types, and NEB detected 31% more genes than QuantSeq. Although the two library types recovered different numbers of genes and expression levels, results with NEB and QuantSeq were consistent in that neither library type showed differences in gene expression between sampling methods and tissue harvesting times. Our study suggests that researchers can safely rely on different fish sampling strategies in the field. In addition, while QuantSeq is more cost effective, NEB detects more expressed genes. Therefore, when it is crucial to detect as many genes as possible (especially low expressed genes), when alternative splicing is of interest, or when working with an organism lacking good genomic resources, whole mRNA‐Seq is more powerful. [ABSTRACT FROM AUTHOR]

Global threat from emerging contaminants to human health has pushed researchers to develop pollutant removal technologies including those based on biocatalytic degradation. Laccase, a multicopper enzyme, is reported for its applicability in treating wastewater and industrial effluent by catalyzing reduction of O2 to H2O in the presence of substrates (phenolic or non‐phenolic compounds). Scientific papers have discussed the ability of this enzyme to breakdown hazardous contaminants ranging from azo dyes, antibiotics, and up to hormones. Nonetheless, the cost production of this enzyme is high, hence the importance of the immobilization into solid supports. Polymers are considered suitable for the immobilization because they are easy for modification and have adjustable characteristics. This review discusses the immobilization of laccase into polymers via various techniques (adsorption, cross‐linking, covalent binding, encapsulation, and entrapment) and its implications on the pollutant removal performance. In addition, bibliometric analysis is performed and summarized the advantages and disadvantages of each immobilization technique. [ABSTRACT FROM AUTHOR]

Cork oak landscapes are fascinating ecosystems, historically managed for cork extraction. The persistence in this habitat of many hollow veteran trees provides suitable micro‐habitats for saproxylic beetles.We investigated the saproxylic beetle community of two isolated cork oak woodlands of central Italy with different degree of recovery after human transformation: (1) an open woodland and (2) a dense mixed woodland, both dominated by cork oak trees.We found endemic, rare and threatened saproxylic beetles in both the areas, confirming the important conservation value of cork oak landscapes. In the open woodland we observed a higher number of species in all trophic categories, except for mycophagous specialists. Several microhabitat variables reflected the different stage of recovery of the two woodlands.Our findings suggest the crucial role of diversified environments in protected areas: even a small difference in the degree of recovery (i.e., tree closeness) can affect the number of beetle species. Specifically, we found (1) more xerophilous species in the open woodland and (2) more mesophilous species in the dense mixed woodland. [ABSTRACT FROM AUTHOR]

Keywords: acoustic neuroma; endoscopic ear surgery; expanded transcanal transpromontorial approach; minimally invasive lateral skull base surgery; vestibular schwannoma EN acoustic neuroma endoscopic ear surgery expanded transcanal transpromontorial approach minimally invasive lateral skull base surgery vestibular schwannoma 282 286 5 01/19/23 20230201 NES 230201 Axial sections from preoperative magnetic resonance imaging without contrast, showing a cone-shaped lesion of the internal auditory canal, extending toward the most lateral part of the cerebello-pontine angle. A post-operative CT scan performed 6 h after surgery showed regular post-operative outcomes, highlighting the straight cylindrical surgical route from external to internal auditory canal and CPA (Fig 5). After excision of the tympanic membrane and removal of the incus and malleus, extensive drilling was performed to enlarge the EAC edges, skeletonize the internal carotid artery region anteriorly, the jugular bulb region inferiorly, and the third tract of the facial nerve posteriorly. [Extracted from the article]

This study reports on a novel, flexible, proton beam detector based on mixed 3D–2D perovskite films deposited by solution onto thin plastic foils. The 3D–2D mixture allows to obtain micrometer‐thick and highly uniform films that constitute the detector's active layer. The devices demonstrate excellent flexibility with stable electric transport properties down to a bending radius of 3.1 mm. The detector is characterized under a 5 MeV proton beam with fluxes in the range [4.5 × 105 – 1.4 × 109] H+ cm−2 s−1, exhibiting a stable response to repetitive irradiation cycles with sensitivity up to (290 ± 40) nC Gy−1mm−3 and a limit of detection down to (72±2) µGy s−1. The detector radiation tolerance is also assessed up to a total of 1.7 × 1012 protons impinging on the beam spot area, with a maximum variation of the detector's response of 14%. [ABSTRACT FROM AUTHOR]

The study verified the influence of calcium orthophosphate (CaP):glass ratio on the degree of conversion and mechanical properties of resin‐based composites containing either TEGDMA‐functionalized dicalcium phosphate anhydrous (DCPA) or non‐functionalized DCPA particles. The null hypotheses were that the evaluated variables are not affected by (1) CaP:glass ratio or (2) DCPA functionalization. DCPA particles were synthesized and half of them were functionalized with TEGDMA. Particle characterization included x‐ray diffraction, elemental analysis, laser scattering, helium picnometry and scanning electron microscopy. Two series of composites were prepared containing either DCPA‐NF (non‐functionalized) or DCPA‐F (functionalized), with total inorganic content of 50 vol % and DCPA:silanized barium glass (BG) ratios from 10:40 to 50:0. A composite containing 50 vol % BG was tested as control. DC was determined using FTIR spectroscopy. Biaxial flexural strength and modulus were tested after 24 h in water. Data were analyzed using Kruskal–Wallis/Dunn (flexural properties) or analysis of variance/Tukey tests (DC). Materials with similar actual DCPA contents were compared using Student's t test (alpha: 0.05). DC was higher for materials with DCPA‐F, except for the 10:40 ratio. DCPA‐F resulted in higher strength than DCPA‐NF only at 40:10 ratio. Modulus was not affected by functionalization. Materials with similar actual DCPA contents showed differences in DC (F > NF), while no difference in flexural properties was observed between materials with 28%–30% DCPA. Both null hypotheses were rejected. [ABSTRACT FROM AUTHOR]

This article, titled "Association of prenatal conatal cysts with structural and genetic anomalies," discusses the distinction between conatal and subependymal cysts in fetal life. Conatal cysts are generally considered benign, while subependymal cysts are associated with neurological damage, genetic anomalies, or infections. The study aims to evaluate the association of prenatal conatal cysts with structural and genetic anomalies and postnatal outcomes. The retrospective study included 13 fetuses diagnosed with conatal cysts, with most cases showing no other structural anomalies. Additional tests, such as chromosomal microarray and MRI, were performed, and the postnatal outcomes were generally normal. The study concludes that isolated conatal cysts have normal postnatal outcomes and suggests that further studies should be reserved for cases with associated anomalies. [Extracted from the article]

This article discusses a case study involving a prenatal diagnosis of megalencephaly, a condition characterized by an abnormally large brain, caused by a postzygotic mutation in the PIK3R2 gene. The study highlights the importance of brain biopsy after termination of pregnancy in cases of malformations of cortical development (MCDs) and emphasizes the need for genetic counseling. The findings suggest that most MCDs are caused by genetic mutations that affect the development of the cerebral cortex, and some cases involve somatic mosaicism. The article provides valuable insights for researchers and healthcare professionals studying fetal cortical malformations. [Extracted from the article]

This article, published in the journal Ultrasound in Obstetrics & Gynecology, examines the incidence of structural and chromosomal abnormalities in fetuses with a lateral ventricular atrium width between 9 and 9.9mm. The study included 159 fetuses and found that 39% of them had associated structural anomalies, with genetic anomalies being more frequent in non-isolated cases. The authors suggest performing a neurosonography and considering genetic study in cases with an atrium width between 9 and 9.9mm and associated anomalies. [Extracted from the article]

This article discusses a rare brain malformation called septopreoptic holoprosencephaly (SP-HPE), which is characterized by incomplete division of the forebrain. The article presents a case study of a 29-year-old pregnant woman who was diagnosed with SP-HPE through fetal neurosonography (NS). The NS revealed thickening of the septum pellucidum (SP) and undivided septum pellucidum leaves, among other findings. This is the first reported case of prenatal diagnosis of SP-HPE using NS, as previous cases have been diagnosed postnatally. The article highlights the challenges of prenatal diagnosis for SP-HPE and the importance of NS in detecting this condition. [Extracted from the article]

The free volume in the amorphous phase of a simple carbon‐black‐filled peroxide cross‐linked isoprene rubber (IR) is investigated by positron annihilation lifetime spectroscopy to clarify the structural changes in the rubber phase by the carbon black (CB) fillers. The ortho‐positronium (o‐Ps) pick‐off annihilation lifetime measured in the rubber without CB is around 2.8 ns and is found to be almost constant even after CB filling. This result indicates that in a portion of the rubber phase the free volume remains similar in size to that in the cross‐linked IR without CB. The o‐Ps intensity drastically decreases from 37% without CB to 15% with a CB loading as high as 80 phr. This decline is revealed to exceed the contribution, which is expected only from the decrease in the fraction of the amorphous phase by CB addition, by a factor of 0.37 at the highest CB loading. The additional reduction is related to the generation of a bound rubber layer surrounding the CB fillers with low molecular‐chain mobility where positronium formation is inhibited. The decrease rate is found to represent the volume of this rigid rubber phase and strongly depend on the formation of the CB network structure. [ABSTRACT FROM AUTHOR]

Research on segmentation of the hippocampus in magnetic resonance images through deep learning convolutional neural networks (CNNs) shows promising results, suggesting that these methods can identify small structural abnormalities of the hippocampus, which are among the earliest and most frequent brain changes associated with Alzheimer disease (AD). However, CNNs typically achieve the highest accuracy on datasets acquired from the same domain as the training dataset. Transfer learning allows domain adaptation through further training on a limited dataset. In this study, we applied transfer learning on a network called spatial warping network segmentation (SWANS), developed and trained in a previous study. We used MR images of patients with clinical diagnoses of mild cognitive impairment (MCI) and AD, segmented by two different raters. By using transfer learning techniques, we developed four new models, using different training methods. Testing was performed using 26% of the original dataset, which was excluded from training as a hold‐out test set. In addition, 10% of the overall training dataset was used as a hold‐out validation set. Results showed that all the new models achieved better hippocampal segmentation quality than the baseline SWANS model (ps <.001), with high similarity to the manual segmentations (mean dice [best model] = 0.878 ± 0.003). The best model was chosen based on visual assessment and volume percentage error (VPE). The increased precision in estimating hippocampal volumes allows the detection of small hippocampal abnormalities already present in the MCI phase (SD = [3.9 ± 0.6]%), which may be crucial for early diagnosis. [ABSTRACT FROM AUTHOR]

Pseudemys alabamensis is one of the most endangered freshwater turtle species in the United States due to its restricted geographic distribution in coastal Alabama and Mississippi. Populations of P. alabamensis are geographically isolated from one another by land and saltwater, which could act as barriers to gene flow. It is currently unknown how differentiated these populations are from one another and whether they have experienced reductions in population size. Previous work found morphological differences between Alabama and Mississippi populations, suggesting that they may be evolutionarily distinct. Other Pseudemys turtles such as P. concinna and P. floridana occur naturally within the same geographic area as P. alabamensis and are known to hybridize with each other. These more abundant species could threaten the unique genetic identity of P. alabamensis through introgression. In order to evaluate the endangered status of P. alabamensis and the level of hybridization with other species, we used mitochondrial and nuclear microsatellite markers to assess genetic variation within and among populations of P. alabamensis throughout its range and estimate admixture with co‐occurring Pseudemys species. In P. alabamensis, we found no variation in mitochondrial DNA and an excess of homozygosity in microsatellite data. Our results show genetic differentiation between Alabama and Mississippi populations of P. alabamensis, and low estimated breeding sizes and signs of inbreeding for two populations (Fowl River, Alabama and Biloxi, Mississippi). We also found evidence of admixture between P. alabamensis and P. concinna/P. floridana. Based on our results, P. alabamensis is highly endangered throughout its range and threatened by both low population sizes and hybridization. In order to improve the species' chances of survival, focus should be placed on habitat preservation, maintenance of genetic diversity within both the Mississippi and Alabama populations, and routine population‐monitoring activities such as nest surveillance and estimates of recruitment. [ABSTRACT FROM AUTHOR]

Animals are exposed to different visual stimuli that influence how they perceive and interact with their environment. Visual information such as shape and colour can help animals detect, discriminate, and make appropriate behavioural decisions for mate selection, communication, camouflage, and foraging. Previous research indicates that at least some species within all major vertebrate groups prefer and can discriminate among certain colours and that colour may increase the response to a stimulus. However, since colour is often studied together with other potentially confounding factors such as movement and scent, it is still unclear what role colour plays in the perception of and attention to different stimuli. In this study, we test whether colour influences the response that an animal has to an object, and whether this influence changes depending on the type of object shown to the animal. We assessed the response of three gecko species, Correlophus ciliatus, Eublepharis macularius, and Phelsuma laticauda, to familiar and novel objects presented as colour or grayscale images. Our results indicate that colour does not change the response to objects. Specifically, we found that while all species responded more often to novel than to the familiar images, colour did not influence the response. We also found that the duration of interaction with images was significantly longer for the diurnal species, P. laticauda, than for the two nocturnal species, but this was also independent of colouration. Finally, no differences among sexes were observed within or between species. Our results show that geckos discriminate between 2D images of different content independent of colouration, suggesting that colour may not increase detectability or intensity of the response. These results are essential for uncovering which visual stimuli produce responses in animals. [ABSTRACT FROM AUTHOR]

Background: The term "Cognitive Reserve" (CR) refers to the ability of the brain to cope with the damage in order to minimize symptomatology. Several studies have shown controversial data about functional and structural correlates of CR in normal and pathological aging, probably due to the use of different CR proxies (level of education, occupational complexity, participation in leisure activities, IQ, verbal abilities or intelligence, heterogeneous fMRI tasks). The aim of this study was to investigate imaging correlates of different aspects of CR in a sample of patients with Mild Cognitive Impairment (MCI). Method: Patients with a diagnosis of MCI and young onset of cognitive symptoms (< 65) answered the Cognitive Reserve Index questionnaire (CRIq) aimed at measuring cognitive reserve acquired during lifetime. Patients also underwent multimodal Magnetic Resonance Imaging (MRI) on a 3T scanner including high‐resolution T1 and functional MRI sequences acquired at rest (resting fMRI). CRIq‐Total score and single subscores (CRIq‐Education, ‐WorkingActivity and ‐LeisureTime) were related to regional grey matter (GM) volume, whole brain fractional anisotropy (FA) and functional connectivity of resting‐state networks (RSNs) using, respectively, Voxel Based Morphometry (VBM), Tract‐Based Spatial Statistics (TBSS), and independent component analysis of resting fMRI (MELODIC). Result: Thirty‐nine patients were recruited. The median CRIq‐Total, ‐Education, ‐WorkingActivity and ‐LeisureTime scores were respectively 102, 97, 105 and 105. VBM correlational analysis showed no significant results. TBSS revealed a negative correlation between CRIq‐LeisureTime and FA of the body of corpus callosum. Resting‐fMRI analyses revealed negative correlations between CRIq scores and functional connectivity, involving particularly frontal and temporal areas. Conclusion: In patients with MCI, cognitive reserve relates to functional connectivity of fronto‐temporal areas rather than to structural variability (grey matter atrophy or white matter microstructural integrity). The negative correlations found between functional connectivity and CRIq scores shows that patients with high cognitive reserve may not need to increase functional connectivity. [ABSTRACT FROM AUTHOR]

Background: Short-term memory binding (STMB) tests assess conjunctive binding, in which participants should remember the integration of features, such as shapes (or objects) and colors, forming a unique representation in memory. In this study, we investigated two STMB paradigms: change detection (CD) and free recall (FR).Objective: To investigate the cognitive profile in the CD and FR tasks of three diagnostic groups: cognitively unimpaired (CU), mild cognitive impairment (MCI), and Alzheimer's clinical syndrome (ACS). In addition, we aimed to calculate and compare the accuracy of the CD and FR tasks to identify MCI and ACS.Methods: Participants were 24 CU, 24 MCI, and 37 ACS. The cognitive scores of the clinical groups were compared using analysis of variance (ANOVA) and receiver-operating characteristic (ROC) analyses were carried out to verify the accuracy of the STMB tasks.Results: In the CD task, CU was different from MCI and ACS (CU > MCI = ACS), while in the FR task all groups were different (CU > MCI > ACS). The ROC analyses showed an area under the curve (AUC) of 0.855 comparing CU with MCI for the CD task and 0.975 for the FR. The AUC comparing CU and ACS was 0.924 for the CD and 0.973 for the FR task. The FR task showed better accuracy to identify MCI patients, and the same accuracy to detect ACS.Conclusion: The present findings indicate that impairments in CD and FR of bound representations are features of the cognitive profiles of MCI and ACS patients. [ABSTRACT FROM AUTHOR]

Background: Patients with programmed cell death‐ligand 1 (PD‐L1) ≥50% metastatic non‐small cell lung cancer (mNSCLC) and ECOG performance status (PS) of 2 treated with first‐line immunotherapy have heterogeneous clinical assessment and outcomes. Methods: To explore the role of immune‐inflammatory surrogates by the validated lung immuno‐oncology prognostic score (LIPS) score, including the neutrophil‐to‐lymphocyte ratio (NLR) and the pretreatment use of steroids, alongside other prognostic variables. A retrospective analysis of 128 patients with PS2 and PD‐L1 ≥50% mNSCLC treated between April 2018 and September 2019 with first‐line pembrolizumab in a real‐world setting was performed. Results: With a median follow‐up of 15.3 months, the 1‐year overall survival (OS) and median progression‐free survival (PFS) were 32.3% (95% CI: 30.9–33.9) and 3.3 months (95% CI: 1.8–4.7), respectively. The NLR, lactate dehydrogenase (LDH) and pretreatment steroids results were the only significant prognostic factors on the univariate analysis and independent prognostic factors by the multivariate analysis on both OS and PFS. The LIPS score, including the NLR and pretreatment steroids, identified 29 (23%) favourable‐risk patients, with 0 factors, 1‐year OS of 67.6% and median PFS of 8.2 months; 57 (45%) intermediate‐risk patients, with 1 factor, 1‐year OS 32.1% and median PFS 2.7 months; 42 (33%) poor‐risk patients, with both factors, 1‐year OS of 10.7% and median PFS of 1.2 months. Conclusions: The assessment of pre‐existing imbalance of the host immune response by combined blood and clinical immune‐inflammatory markers may represent a way to unravel the heterogeneous outcome and assessment of patients with mNSCLC and poor PS in the immune‐oncology setting. [ABSTRACT FROM AUTHOR]

Background: Mild Cognitive Impairment (MCI) is a clinical condition that captures the stage between normal aging and dementia along the continuum of cognitive impairment. While it is usually thought to be precursor of Alzheimer's Disease, when occurring at young ages (i.e., before 65 years old) it may increase the risk of all forms of neurodegenerative dementing diseases. We studied which neuropsychological and biomarker characteristics are predictors of conversion to dementia in a sample of patients with young‐onset MCI. Method: Subjects with a diagnosis of MCI and early‐onset of cognitive symptoms (< 65 yo) were recruited in a prospective longitudinal study. They underwent extended neuropsychological assessment, Magnetic Resonance Imaging with measurement of hippocampal volume, and lumbar puncture with measurements of cerebrospinal fluid (CSF) light‐chain neurofilaments (NFL), beta‐amyloid 1‐42, total‐ and phosphorylated‐tau. They were followed‐up clinically and repeated the neuropsychological evaluation at 18 months from the baseline. Statistical analyses were performed with Stata15. Each biomarker and neuropsychological variable were added in multivariate Cox regression models with age, sex, and education. Result: 84 young‐onset MCI patients were recruited. After 18 months, 26 converted to dementia while 58 remained stable (i.e., MCI). Preliminary analyses showed that baseline smaller bilateral hippocampal volumes, lower baseline MMSE scores, baseline worst performances in tests of language, verbal long‐term memory, and executive functions, as well as baseline elevated levels of CSF NFLs increased the risk of conversion to dementia. Among them, the higher risk was given by the Free and Cued Selective Reminding Test (FCSRT), the Corsi Supraspan, the Frontal Assessment Battery, and the CSF NFLs levels, as shown by spline regression analyses (Figure 1). Of note, the FCSRT delayed recall showed a U‐shaped relationship with the risk of conversion (i.e., not only low/bad performance but also high/good performance were both related to a higher risk of conversion) suggesting that the types of predicted conversion may be different. Conclusion: Our results suggest that, in young‐onset MCI, a combination of CSF‐NFLs levels and baseline performance at long‐term memory tests may be predictive of conversion to dementia, either AD or FTD. [ABSTRACT FROM AUTHOR]

Background: Optical Coherence Tomography angiography (OCT‐A) is a novel tool that allows the detection of retinal vascular changes. The comparison of OCT‐A measures with brain vascular burden is essential to validate the former as a surrogate of cerebrovascular damage and biomarker of cognitive decline. We aimed to investigate the association of macular vessel density (VD) in the superficial plexus assessed by OCT‐A with measures of cerebrovascular pathology quantified by brain magnetic resonance imaging (MRI) in a cohort of non‐demented individuals. Method: Clinical, demographical, APOE ε4 status, amyloid status, OCT‐A and brain MRI data from non‐demented participants of the FACEHBI and BIOFACE studies were included. We analyzed the association of macular VD in four quadrants (superior, nasal, inferior and temporal) with brain vascular burden using the Fazekas scale scores (dichotomized in two categories, 0‐1 vs 2‐3), assessed in a logistic regression analysis, and the volume of white matter hyperintensities (WMH) quantified by Freesurfer assessed in a multiple regression analysis. We additionally explored the associations of macular VD with hippocampal volume, ventricles volume and Alzheimer Disease cortical signature (ADCS) thickness assessed in a multiple regression analysis. All analyses were adjusted for age and dyslipidemia. Result: The study cohort comprised 188 participants: 89 with subjective cognitive decline (SCD) and 99 with mild cognitive impairment (MCI). Logistic regression analysis showed no significant differences of regional macular VD between the two Fazekas groups (all, p>0.05). Multiple regression analysis showed no significant association of regional macular VD with the volume of WMH (all, p>0.05). Macular VD in the nasal and inferior quadrants were positively associated with hippocampal volume (p = 0.009 and p = 0.021, respectively), but no association was detected with ventricles volume or ADCS thickness (both p>0.05). Conclusion: Our study showed that retinal vascular measures (regional macular VD in the superficial vascular plexus) assessed by OCT‐A were not associated with brain vascular damage quantified by the Fazekas scale and the WMH burden n in a cohort of non‐demented research participants with SCD and MCI. [ABSTRACT FROM AUTHOR]

Background: in the clinical course of Alzheimer's disease (AD) development, the dementia phase is commonly preceded by a prodromal AD phase, which is mainly characterized by reaching the highest levels of Aβ and p‐tau‐mediated neuronal injury and a mild cognitive impairment (MCI) clinical status. Because of that, most AD cases are diagnosed when neuronal damage is already established and irreversible. Therefore, a differential diagnosis of MCI causes in these prodromal stages is one of the greatest challenges for clinicians. Blood biomarkers are emerging as desirable tools for pre‐screening purposes, but the current results are still being analyzed and much more data is needed to be implemented in clinical practice. Because of that, plasma exosomes (pEXOs) are gaining popularity as a new source of biomarkers for the early stages of AD development Method: to identify an exosome proteomics signature linked to prodromal AD, we performed a cross‐sectional study on two groups of patients with early‐onset MCI (EOMCI) (Aβ +/‐) in which 184 biomarkers were measured in pEXOs, cerebrospinal fluid (CSF), and plasma samples using multiplex PEA technology of Olink© proteomics. Result: the obtained results showed that proteins measured in pEXOs from EOMCI patients with established amyloidosis correlated with CSF p‐tau181 levels, brain ventricle volume changes, white matter hyperintensities, and MMSE scores. In addition, the correlations of pEXOs proteins with different parameters were able to discriminate between EOMCI Aβ(+) and Aβ(‐) patients, whereas the CSF or plasma proteome did not. Conclusion: our findings suggest that pEXOs could be able to provide information regarding the initial amyloidotic changes of AD. At this early stage, our results may indicate that pEXOs biomarker profile is associated with the AD‐specific neurodegeneration process governed by p‐tau and Aβ. Circulating exosomes may acquire a pathological protein signature of AD before raw plasma, becoming potential biomarkers for identifying subjects at the earliest stages of AD development. However, additional research is required to comprehend the molecular pathways underlying these findings and validate the obtained results in an independent cohort. [ABSTRACT FROM AUTHOR]

The Kemp's ridley (Lepidochelys kempii) is the world's most endangered sea turtle species. Predominately nesting at only one beach in Mexico, this species declined to an estimated 300 females in the mid‐1980s. Conservation efforts in the United States and Mexico, including a head start programme in southern Texas in which hatchlings were reared in captivity for several months before being released into the wild, resulted in the recovery of this species.Although genetic data have previously been used to assess the success of the head start programme and dispersal of individual adults, data on immature turtles sampled at foraging areas and adult females sampled at the main nesting beach in Mexico are lacking. Genetic characterization of immature individuals is important for understanding recruitment, survival, and population demography, while genetic data on individuals from Mexico are essential for understanding dispersal and overall genetic diversity in this species.To address these gaps, mitochondrial DNA data were collected from 106 immature individuals sampled at four different foraging sites in the northern Gulf of Mexico and from 18 nesting females at the primary nesting beach in Mexico.Two previously unknown mitochondrial DNA haplotypes were discovered among the immature individuals.Except for these two new haplotypes, the genetic diversity of immature individuals in the northern Gulf of Mexico closely corresponds to that of adults sampled in Mexico, which suggests that much of the diversity within the nesting population can be found among immature animals dispersing to foraging grounds, including locations in the northern Gulf of Mexico.Continued monitoring of the genetic variation of different life stages of this species across its distribution range will help assess the success of conservation programmes by ensuring the maintenance of genetic diversity and representation of this diversity across the species' distribution range. [ABSTRACT FROM AUTHOR]

Objectives: The main aim of this study was to evaluate if an individualized assisted walking program (IAWP) for hospitalized older patients could improve walking ability compared with usual geriatric care and rehabilitation. Design: A randomized controlled trial with an active control group, open labeled with parallel assignment was conducted between October 2018 and January 2020. Setting: Geriatric ward. Participants: A total of 387 hospitalized patients (≥65 years) were randomly assigned to an intervention or control (usual‐care) group. Intervention: The control group received usual hospital care. The intervention group received also an IAWP. Measurements: The primary endpoint was change in walking ability from hospital admission (considering both current and pre‐admission status) to discharge, as assessed with the Braden Activity subscale measures. The secondary endpoint was the occurrence of in‐hospital adverse events, such as complications of mobility, pressure ulcers, falls, pain and mortality, and the length of hospital stay. Intention‐to‐treat and per‐protocol analyses were performed. Results: Baseline characteristics were similar between intervention and control groups. The intervention group, relative to the control group, had significantly improved walking ability at discharge (P <.001). There were no statistically significant differences between the groups in terms of in‐hospital adverse events. No adverse effects were detected. Conclusion: In in‐hospital patients aged 65 and older, an IAWP improves walking ability at discharge. [ABSTRACT FROM AUTHOR]

Introduction: Patients with early onset dementia (EOD), defined as dementia with symptom onset at age <65, frequently present with atypical syndromes. However, the epidemiology of different EOD presentations, including variants of Alzheimer's disease (AD) and frontotemporal dementia (FTD), has never been investigated all together in a population‐based study. Epidemiologic data of all‐cause EOD are also scarce. Methods: We investigated EOD epidemiology by identifying patients with EOD seen in the extended network of dementia services of the Modena province, Northern Italy (≈700,000 inhabitants) from 2006 to 2019. Results: In the population age 30 to 64, incidence was 13.2 per 100,000/year, based on 160 new cases from January 2016 to June 2019, and prevalence 74.3 per 100,000 on June 30, 2019. The most frequent phenotypes were the amnestic variant of AD and behavioral variant of FTD. Discussion: EOD affects a significant number of people. Amnestic AD is the most frequent clinical presentation in this understudied segment of the dementia population. [ABSTRACT FROM AUTHOR]

Small extracellular vesicles (sEVs) present fairly distinctive lipid membrane features in the extracellular environment. These include high curvature, lipid-packing defects and a relative abundance in lipids such as phosphatidylserine and ceramide. sEV membrane could be then considered as a "universal" marker, alternative or complementary to traditional, characteristic, surface-associated proteins. Here, we introduce the use of membrane-sensing peptides as new, highly efficient ligands to directly integrate sEV capturing and analysis on a microarray platform. Samples were analysed by label-free, single-particle counting and sizing, and by fluorescence co-localisation immune staining with fluorescent anti-CD9/anti-CD63/anti-CD81 antibodies. Peptides performed as selective yet general sEV baits and showed a binding capacity higher than anti-tetraspanins antibodies. Insights into surface chemistry for optimal peptide performances are also discussed, as capturing efficiency is strictly bound to probes surface orientation effects. We anticipate that this new class of ligands, also due to the versatility and limited costs of synthetic peptides, may greatly enrich the molecular toolbox for EV analysis. [ABSTRACT FROM AUTHOR]

Nanopore‐based resistive‐pulse recordings represent a promising approach for single‐molecule biophysics with applications ranging from rapid DNA and RNA sequencing to "fingerprinting" proteins. Based on advances in fabrication methods, solid‐state nanopores are increasingly providing an alternative to proteinaceous nanopores from living organisms; their widespread adoption is, however, slowed by nonspecific interactions between biomolecules and pore walls, which can cause artifacts and pore clogging. Although efforts to minimize these interactions by tailoring surface chemistry using various physisorbed or chemisorbed coatings have made progress, a straightforward, robust, and effective coating method is needed to improve the robustness of nanopore recordings. Here, covalently attached nanopore surface coatings are prepared from three different polymers using a straightforward "dip and rinse" approach and compared to each other regarding their ability to minimize nonspecific interactions with proteins. It is demonstrated that polymer coatings approach the performance of fluid lipid coatings with respect to minimizing these interactions. Moreover, these polymer coatings enable accurate estimates of the volumes and spheroidal shapes of freely translocating proteins; uncoated or inadequately coated solid‐state pores do not have this capability. In addition, these polymer coatings impart physical and chemical stability and enable efficient and label‐free characterization of single proteins without requiring harsh cleaning protocols between experiments. [ABSTRACT FROM AUTHOR]

Scientific investigation is very important in studies addressing issues of archaeological and historical objects. Ion beam analysis (IBA) and macro X‐ray fluorescence (MA‐XRF) spectroscopy are remarkable tools to obtain information about elemental composition and imaging of historical artefacts with a non‐invasive character. These investigation techniques were employed in the framework of a project aimed at supporting the characterization of materials and techniques related with the Roman wall painting. The archaeological excavations at Villa della Piscina in Rome have revealed a luxury building with a large pool (about 50 m long) and thermal baths and numerous fragments of plaster, coming from intentional demolitions referable to two distinct architectural contexts of the Villa during the imperial age, have been found. This work deals with studying the interesting wall pictorial apparatus of great cultural value of the heritage inherited from the Roman age in the area of the ancient city of Rome. The colour palette of the pigments investigated, in particular, by MA‐XRF and particle‐induced X‐ray emission (PIXE) and has revealed Fe, Cu, Pb, Si and Hg as main elements. Traces of other constituents uncover the choice of the different colours chosen by the artists who had embellished the rooms of the Villa. [ABSTRACT FROM AUTHOR]

Methyl groups are valuable probes for solution NMR, allowing the investigation of large protein complexes. Among the six methyl containing residues, threonine has one of the less hydrophobic side chain, and can reside both within the interior of a protein or on the protein surface. This article presents an efficient mixed chemical/enzymatic synthesis scheme, enabling the preparation of threonine with natural configuration on the two stereogenic centers together with an optimal introduction of 1H/2H and 12C/13C atoms at specific sites. Such specifically labelled amino acid can be efficiently incorporated in overexpressed proteins without scrambling or in combination with any other types of 13CH3 probes. Additionally we report application to the 82 kDa Malate Synthase G. Our findings demonstrate that structural meaningful long range nOes can be detected between threonine methyl probes and methionine and isoleucine methyl groups distant by 12 Å. [ABSTRACT FROM AUTHOR]

Background: Frontotemporal dementia (FTD) and amyotrophic lateral sclerosis (ALS) belong to the same neurodegenerative spectrum. Factors determining phenotypic expression are unknown; however, it is common observation that personality differs between phenotypes: ALS patients tend to display a pleasant and nice attitude, while FTD patients frequently exhibit antisocial behaviours and lack of empathy. We therefore aimed at testing if FTD and ALS patients have different premorbid personalities, and, consequently, different organizations in the brain networks involved in social behaviour and motor function. Method: We recruited FTD and ALS patients presenting to Modena University Hospital Neurology Clinics. Patients' premorbid personality was assessed through the NEO Personality Inventory 3, which evaluates five main personality factors (Neuroticism, Extraversion, Openness, Agreeableness, Conscientiousness). Brain MRI scan including T1‐weighted and resting state fMRI sequences was performed. Data were analysed with voxel‐based morphometry and probabilistic independent component analysis. Result: 50 patients (30 FTD, 17 ALS, and 3 FTD‐ALS) were recruited. A significant difference in premorbid personality emerged in the Openness and Extraversion domains, meaning that ALS patients – in their premorbid life – showed higher sociability, loquacity and optimism and were more prone to new experience, ideas, and emotions than FTD patients, respectively. Structural imaging analysis showed a positive correlation between premorbid Neuroticism and grey matter density of the hippocampus bilaterally (left>right) across all patients. Group comparisons of fMRI data showed greater functional connectivity (FC) in ALS compared to FTD patients within the Salience Network (SN) in the right insula, putamen, nucleus accumbens, and the left thalamus. FC within the SN positively correlated with premorbid Openness across all patients. Conclusion: Premorbid personality differs between patients with ALS and FTD, and relates to different degrees of FC within the Salience Network. This suggests that premorbid personality may represent a vulnerability marker to the development of specific phenotypes along the FTD‐ALS spectrum. [ABSTRACT FROM AUTHOR]

Aerosol sampling was carried out prior to and during an active construction work at the University of Jordan in Amman, Jordan. Elemental characterization for 60 PM2.5 samples was performed by particle‐induced X‐ray emission (PIXE) technique at the LABEC laboratory of INFN in Florence, Italy. Twenty three elements (Na, Mg, Al, Si, P, S, Cl, K, Ca, Ti, V, Cr, Mn, Fe, Ni, Cu, Zn, Br, Rb, Sr, Zr, Ba, and Pb) were detected, and their concentrations were assessed during three sampling periods, namely, "No Construction," "Pouring Concrete," and "Bleaching." The results showed higher concentrations of soil‐related elements and lower concentrations of anthropogenic‐related elements during construction periods compared with their concentrations before construction. Soil‐related elements showed very low enrichment factor (EF) and high correlation coefficients during all sampling periods. Anthropogenic‐related elements were very much enriched and correlated only during the first sampling period "No Construction." [ABSTRACT FROM AUTHOR]

Introduction: In people with haemophilia (PWH) with severe arthropathy, total joint replacement (TJR) can be undertaken if conservative management fails. Post‐operative rehabilitation treatment is an important part of the comprehensive management of patients undergoing TJR. Aim: To compare post‐operative standard rehabilitation (SR) and SR plus water rehabilitation (WR) in PWH undergoing TJR. Methods: PWH who were admitted to our centre between June 2003 and December 2016 for rehabilitation after TJR were included in the study. Rehabilitation included SR (ie, manual and mechanical mobilization, scar tissue massage, light muscle strengthening exercises and walking training with and without crutches) with or without WR. WR exercises with floats of different size and volume were performed when possible. Range of motion (ROM), muscle strength, pain level, perceived health status and length of hospital stay were analysed retrospectively. Results: A total of 184 patients (233 rehabilitation programmes were enrolled in the study, corresponding to 160 after total knee replacement [TKR], 37 after total ankle replacement [TAR] and 36 after total hip replacement [THR]). Fifty‐eight (25%) patients were treated with WR in addition to SR (32 for TKR, 19 for TAR and 7 for THR) with an average of 5.7 hours of WR. Muscle strength, pain and perceived health status improved significantly after rehabilitation. Conclusion: This non‐randomized study seems to indicate that WR plus SR improves muscle strength, pain and perceived health status more than SR alone in PWH undergoing TJR. It would be necessary, however, to carry out randomized comparative studies to confirm these provisional conclusions. [ABSTRACT FROM AUTHOR]

The University of Jordan Van de Graaff accelerator (JUVAC) was devoted many years ago to promote scientific research through the installation of several beamlines based on nuclear techniques. It constitutes the first and unique, till now, ion beam analysis facility in Jordan. Among these techniques, the JUVAC has recently installed, with the financial and technical aid of the International Atomic Energy Agency, a combination of particle‐induced X‐ray emission (PIXE) and Rutherford backscattering spectrometry (RBS). A new X‐ray detector has been installed, and the system has been tested for aerosol analysis using a set of thin MicroMatter standards. This manuscript includes a brief description of the combined PIXE–RBS beamline with some results, particularly those obtained by PIXE. The low‐energy proton beam adds a technical limitation to attain optimum analytical performance. However, a simulation of the RBS spectrum of protons on aerosol filter indicates that the RBS measurement for some elements (e.g., Pb) can replace the PIXE one. [ABSTRACT FROM AUTHOR]

This study describes the synthesis of dicalcium phosphate dihydrate (DCPD) particles in the presence of different ethylene glycol dimethacrylates (EGDMA, ethylene glycol/EG units: 1, 2, 3 or 4) at two monomer‐to‐ammonium phosphate molar ratios (1:1 and 2:1), as a strategy to develop CaP‐monomer particles with improved interaction with resin matrices. Particles displaying high surface areas and organic contents were added to a photocurable BisGMA‐TEGDMA resin and the resulting materials were tested for degree of conversion (DC), biaxial flexural strength (BFS), flexural modulus, and ion release. Data were subjected to one‐way ANOVA or Kruskal‐Wallis/Dunn test (alpha: 0.05). Functionalization with EGDMA derivatives was dependent upon the length of the spacer group and monomer concentration in the synthesis. No differences in DC were observed among materials (p > 0.05). A 39% increase in BFS was obtained with the use of particles with the highest functionalization level compared to non‐functionalized particles (p < 0.001). The use of functionalized DCPD reduced flexural modulus in comparison to non‐functionalized particles (p < 0.001). Calcium release was similar among materials and remained constant during the experiment, while phosphate release was higher at 7 days in comparison to the remaining weeks (p < 0.001). In conclusion, diethylene glycol dimethacrylate resulted in the highest functionalization levels and the highest BFS among DCPD‐containing materials. Ion release was not affected by functionalization. © 2018 Wiley Periodicals, Inc. J Biomed Mater Res Part B: Appl Biomater, 2018. © 2018 Wiley Periodicals, Inc. J Biomed Mater Res Part B: Appl Biomater 107B: 708–715, 2019. [ABSTRACT FROM AUTHOR]