Atypical Behavior Research Articles

Unusual electronic transport in (1 −x)Cu2Se–(x)CuInSe2hierarchical composites

The ability to control the relative density of electronic point defects as well as their energy distribution in semiconductors could afford a systematic modulation of their electronic, optical, and optoelectronic properties. Using a model binary hybrid system Cu2Se-CuInSe2, we have investigated the correlation between phase composition, microstructure, and electronic transport behavior in the synthesized composites. We found that both Cu2Se and CuInSe2 phases coexist at multiple length scales, ranging from sub-ten nanometer to several micrometers, leading to the formation of a hybrid hierarchical microstructure. Astonishingly, the electronic phase diagram of the (1 - x)Cu2Se-(x)CuInSe2 (15% ≤ x ≤ 100%) hierarchical composites remarkably deviates from the trend normally expected for composites between a heavily doped semiconductor (Cu2Se) and a poorly conducting phase (CuInSe2). A sudden 3-fold increase in the electrical conductivity and carrier concentration along with a marginal increase in the carrier mobility is observed for composites at the vicinity of equimolar composition (48% ≤ x ≤ 52%). The carrier concentration increases from ∼1.5 × 1020 cm-3 for the composites with x ≤ 45% to 5.0 × 1020 cm-3 for x = 50%, and remains constant at 4.5 × 1020 cm-3 with x value in the range of 52% < x ≤ 90%, then quickly drops to 8 × 1018 cm-3 for pristine CuInSe2 phase (x = 100%). The atypical electronic behavior was rationalized in the light of the formation of an inter-band (IB) within the band gap, which arises from the hybridization of native electronic point defects from both Cu2Se and CuInSe2 phases in the resulting hierarchical composites. The result points to a new strategy to modulate the electronic structure of semiconductor composites to maximize interaction and coupling between two fundamentally contrasting properties enabling access to electronic hybrid systems with potential applications as interactive and stimuli-responsive multifunctional materials.

Eating behavior in children with autism spectrum disorder

To study atypical eating behavior (AEB) in various variants of autism spectrum disorder (ASD) to determine the prognosis and therapeutic tactics. One hundred and eighty patients (110 girls, 70 boys), aged 2 to 5 years (mean age 4 years), with a diagnosis of «Childhood autism» (F84.02), «Atypical autism» (F84.1), «Asperger Syndrome» (F84.5) and the presence of AEB were examined. Three clinical variants of ASD accompanied by AEB were identified: catatonic-regressive (n=75, 41%), catatonic (n=81, 45%) and hyperdynamic (n=24, 13%). The most pronounced AEB were in the catatonic-regressive variant, and the least in the hyperdynamic variant of ASD. The severity of AEB is associated with the severity of cognitive dysontogenesis. The characteristics of AEB are associated with the leading clinical syndrome of ASD. The severity of catatonia and regression affects the depth of AEB, which leads to secondary somatic disorders. Specialists of various profiles should participate in medical work for successful rehabilitation and prevention of somatic complications.

Abstract- Poster

Introduction:Autism is a neurodevelopmental disorder with impairment in social communication and with restricted repetitive behaviours About 1% to 60% of children with hypomelanotic skin disorders have autism.Case summary:A 3 year old female child had low weight and Neonatal ICU stay at birth, delay in fine motor, social cognition and language, and hyperactivity, along with inappropriate behaviors, poor eye contact and solitary play. Ophthalmology consultation showed foveal hypoplasia and was diagnosed to have oculocutaneous albinism. Paediatricians referred the child to Psychiatry for hyperactivity symptoms. On Psychiatric evaluation, objective assessments showed evidence of autism.Discussion:Autism spectrum disorders are one of the most common neurodevelopmental disorders associated with various comorbidities which could make the core diagnosis of autism challenging. Even though albinism with poor eye sight and intellectual disability secondary to neonatal insult can itself cause all the above clinical features, the child scored high in Modified Checklist for Autism in Toddlers (M-CHAT) and Childhood Autism Rating Scale (CARS) and diagnosed as Severe Autism, which could have been easily missed if not evaluated for.Conclusion:Autism is difficult to diagnose without adequate expertise and it is necessary to get Psychiatry liaison in any child with suspected atypical behaviour for early diagnosis and treatment.

O verbo modal ‘poder’ no presente do indicativo especificidades da linguagem jurídica em português europeu

With this paper, we intend to present some considerations about the atypical behavior of the verb ‘poder’ in European Portuguese, when considered within the frame of legal language. Having in mind the analysis of two dominant textual typologies in the juridical field – law itself and the judicial sentence – we aim to describe the potential of interpretation concerning some occurrences which may be of interest when the objective is to reflect on the operative variations of this modal in discursive production, translation studies and other related fields.

Identification of atypical behavior of bank employees when using e-mail to prevent information leakages

The article presents the results of using machine learning methods to identify atypical behavior of bank employees when using e-mail. A feature space is formed that characterizes the behavior of e-mail users. The objects were previously clustered using the density-based spatial clustering of applications with noise (DBSCAN) and the fuzzy logic elements. The objects were marked using the inbuilt business rules, and the training sample was formed in the absence of marked data. The most informative features are selected, and a model of classification of e-mail users by the type of their behavior is constructed. A feature space is formed that defines the characteristics of a particular message to identify messages that are the information security incidents. Preliminary data processing was performed by removing the duplicates and encoding the categorical variables. A model of messages classification is constructed. The best combination of the machine learning method and the feature selection algorithm was determined using quality metrics. The constructed models allow specialists of cybersecurity departments of banks to identify employees with abnormal behavior and possibly involved in information leaks. A software tool in Python was developed that makes it easier to identify the final status of a message by partially replacing its manual detection for an automatic one.

Atypical cervical mass

Hemoptysis as first sign of a thyroid differentiated cancer represents an atypical behavior of a cervical mass, usually associating lung metastasis or direct tracheal invasion. Late presentation (for instance, due to COVID-19 pandemic circumstances) associates a poor prognosis. This is a case report. We aim to introduce a 70-year old female case who was admitted for an atypical cervical mass associating hemoptysis as onset; the diagnostic of metastatic papillary thyroid cancer was established; the delay of hospital admission did not allow a radical intervention with curative purpose. The lady was admitted as an emergency for an endocrine checkup of a progressively growing cervical mass in addition to hemoptysis that developed a few weeks before. Specific blood endocrine panel confirmed the normal thyroid function with negative thyroid autoimmunity. Anterior cervical ultrasound showed intensely hypoechoic, inhomogeneous, large structure, with macro-calcifications (TIRADS 5). Fine needle aspiration cytology exam revealed a papillary carcinoma of thyroid, consistent with Bethesda 6 score. Computed tomography detected a voluminous thyroid tumor process of 92 by 58 by 89 mm. The superior, middle and inferior left later-cervical lymph nodes which are located posterior to the later-cervical vascular package, have maximum diameters of approximately 30/34 mm (axial) and 54 mm (vertical). Multiple micro-nodules of oval form in both lungs have diameters up to 29 mm (probably secondary lesions). Osteolytic tumor lesion at the level of the lateral arch of the vertebral body thoracic T 1 and the head of the left first rib extends to the level of the left foramen from the spaces cervical C7 to thoracic T1, respective between thoracic T1 and T2, with maximum diameters of 23/32 mm. CT also showed brain metastasis, as a iodophil, inhomogeneous, well-contoured tumor that is located on the right frontal precentral gyrus, with maximum diameters of 10/13 mm (axially) and 13 mm (vertically) and small areas of perilesional edema. Further adjuvant therapy was refused by the patient; palliative tracheostomy is needed. Atypically aggressive presentation of well differentiated thyroid cancer of papillary type might be associated with delayed presentation; whether this comes as direct consequence of pandemic era is still a matter of debate.

Relationship between permissive parenting style and atypical behaviour in preschool children, with generalized anxiety as mediator

ABSTRACT This study examines the relationship between permissive parenting style and atypical behaviour in preschool children, focusing on the mediating role of generalized anxiety. A community sample of 293 children, aged 3–5 years, were tested with measures assessed by parents and teachers. Regression analyses were employed. The psychometric tests used were: Parenting Styles and Dimensions Questionnaire – Mother Form, Behavior Assessment System for Children, Second Edition, Teacher Rating Scale, and Preschool Anxiety Scale – Parent version. Children whose parents have a permissive parenting style exhibit a high level of atypical behaviour, and a very high level of generalized anxiety. Generalized anxiety adds significant explanatory variance for atypical behaviour in preschool children over and above permissive parenting style. Generalized anxiety has a partial mediating effect on the relationship between father's permissive parenting style and atypical behaviour and a total mediating effect on the relationship between mother's permissive parenting style and atypical behaviour.

Association of Chronic Low Back Pain With Personal Space Regulation.

Background: While most previous studies regarding patients with chronic low back pain (CLBP) mainly focused on pain, disability, psychological damage, and intervention measures, the effect of CLBP on personal space remains unclear. The study aimed to assess the personal space of patients with CLBP and healthy controls, explored the differences between the two groups, and examined whether pain, dysfunction, anxiety, and depression affected the personal space regulation.Methods: The cross-sectional study recruited 24 patients with CLBP and 24 healthy controls at Shanghai Shangti Orthopedic Hospital and Shanghai University of Sport, Shanghai, China, from December 2018 to January 2019. A stop-distance paradigm was applied to measure the comfortable and uncomfortable distance under four conditions. A self-rating anxiety scale (SAS) and a self-rating depression scale (SDS) were used to examine the anxiety and depression levels of all participants. The pain intensity and dysfunction in the CLBP group were evaluated by the numeric rating scale and Roland-Morris questionnaire (RMDQ), respectively.Results: When approaching another individual or when being approached, the interpersonal distance under all the conditions in the CLBP group significantly differed from that in the healthy control group with larger space distances (p < 0.01). Gender had a significant main effect on the regulation of personal space in patients with CLBP (p < 0.05). The average pain intensity, scores on RMDQ, SAS, and SDS had a significant positive correlation with the interpersonal distance under the Same or Opposite Gender condition (p < 0.05).Conclusion: People with CLBP show an atypical personal space behavior and indeed have a greater interpersonal distance to strangers. The higher the pain intensity, dysfunction, anxiety, and depression, the greater the interpersonal distance in patients with CLBP. In the future, the effect and underlying neural mechanisms of pain and negative emotions on social withdrawal in patients should be examined.

Autocatalytic influence of different levels of arsine on the thermal stability and pyrolysis of polypropylene

In this article, the pyrolysis and thermo-degradation of 11 virgin-polypropylene (virgin-PP) with different levels of arsenic in its polymer matrix, was carried out in a discontinuous quartz reactor at 500 °C. To quantify arsine (AsH3), 4 points were sampled during the PP synthesis process and a methodology was applied by GC with 4 detectors, which simultaneously and with a single injection allowed to quantify multiple components. AsH3 in propylene varied between 0.05 and 4.73 ppm and arsenic in virgin-PP residues between 0.001 and 4.32 ppm for PP0 and PP10. These generated an increase in the melt flow index from 3.0 to 24.51 and maintained a direct relationship with an R2 of 0.9993. The origin of thermo-oxidative degradation and the beginnings of virgin-PP pyrolysis are explained by the formation to aldehyde, ketone, alcohol, carboxylic acid functional groups, CO and CO2. These species caused TG and DTG curves to have atypical behavior for PP. For example, PP10 with an arsenic content of 4.32 ppm presented 3 degradation peaks at 80, 90 and 200 °C with a mass loss ratio of 22%, 18% and 55% °C−1 respectively. During pyrolysis the highest percentage of alkanes was found in PP0 with an average value of 62.4%, and the lowest values were found in PP8 to PP10, with oscillations between 0% and 1.4%. The total concentration of oxidized species for PP0 to PP10 was 2.26%, 32.7%, 43.1%, 50.9%, 59.3%, 66.2%, 75.0%, 83.0%, 89.1% and 97.5% respectively. In an O2 atmosphere ketones and carboxylic acids were only identified in PP0 to PP5. CO2 concentrations in PP5 to PP10 were of 100%.

EYE-C: Eye-Contact Robust Detection and Analysis during Unconstrained Child-Therapist Interactions in the Clinical Setting of Autism Spectrum Disorders.

The high level of heterogeneity in Autism Spectrum Disorder (ASD) and the lack of systematic measurements complicate predicting outcomes of early intervention and the identification of better-tailored treatment programs. Computational phenotyping may assist therapists in monitoring child behavior through quantitative measures and personalizing the intervention based on individual characteristics; still, real-world behavioral analysis is an ongoing challenge. For this purpose, we designed EYE-C, a system based on OpenPose and Gaze360 for fine-grained analysis of eye-contact episodes in unconstrained therapist-child interactions via a single video camera. The model was validated on video data varying in resolution and setting, achieving promising performance. We further tested EYE-C on a clinical sample of 62 preschoolers with ASD for spectrum stratification based on eye-contact features and age. By unsupervised clustering, three distinct sub-groups were identified, differentiated by eye-contact dynamics and a specific clinical phenotype. Overall, this study highlights the potential of Artificial Intelligence in categorizing atypical behavior and providing translational solutions that might assist clinical practice.

New State-Diagram of Aqueous Solutions Unveiling Ionic Hydration, Antiplasticization, and Structural Heterogeneities in LiTFSI-H2O.

Here, we report a new state-diagram for aqueous solutions based on concentration-dependent glass-transition temperatures of concentrated and ice freeze-concentrated solutions. Different from the equilibrium phase diagram, this new state-diagram can provide comprehensive information about the hydration numbers of solutes, nonequilibrium vitrification/cold-crystallization, and vitrification/devitrification processes of aqueous solutions in three distinct concentration zones separated by two critical water-content points of only functions of the hydration number. Based on this new state-diagram, we observe the comparable hydration ability of LiTFSI to LiCl and an atypical concentration-dependent cold-crystallization behavior of the LiTFSI-H2O system. These results unveil the negligible hydration ability of TFSI- in a water-rich solution, characterize the antiplasticizing effect of water induced by the strengthened Li+-TFSI--H2O interaction when only hydration water and confined water are present, and confirm the increasing fraction of water-rich domains with the decrease in water content when the cation and anion become incompletely hydrated on average. These results highlight the novel water-content-mediated interactions among the anion, cation, and H2O for LiTFSI-H2O.

Atypically larger variability of resource allocation accounts for visual working memory deficits in schizophrenia.

Working memory (WM) deficits have been widely documented in schizophrenia (SZ), and almost all existing studies attributed the deficits to decreased capacity as compared to healthy control (HC) subjects. Recent developments in WM research suggest that other components, such as precision, also mediate behavioral performance. It remains unclear how different WM components jointly contribute to deficits in schizophrenia. We measured the performance of 60 SZ (31 females) and 61 HC (29 females) in a classical delay-estimation visual working memory (VWM) task and evaluated several influential computational models proposed in basic science of VWM to disentangle the effect of various memory components. We show that the model assuming variable precision (VP) across items and trials is the best model to explain the performance of both groups. According to the VP model, SZ exhibited abnormally larger variability of allocating memory resources rather than resources or capacity per se. Finally, individual differences in the resource allocation variability predicted variation of symptom severity in SZ, highlighting its functional relevance to schizophrenic pathology. This finding was further verified using distinct visual features and subject cohorts. These results provide an alternative view instead of the widely accepted decreased-capacity theory and highlight the key role of elevated resource allocation variability in generating atypical VWM behavior in schizophrenia. Our findings also shed new light on the utility of Bayesian observer models to characterize mechanisms of mental deficits in clinical neuroscience.

Lived Experiences of Mothers Raising Children with Autism in Chitwan District, Nepal.

Background Autism is a neurodevelopmental problem that is increasing at an alarming rate worldwide. Rearing and caring for children with autism depends upon the perception of mothers and various factors associated with it. There is a gap in the literature regarding the detailed accounts of mother's experiences regarding autism in Nepal. Hence, this study was undertaken to explore lived experiences of mothers raising children with autism. Materials and Methods Qualitative phenomenological study design was used and nine mothers with autistic children were selected using purposive sampling technique. Data were collected using in-depth interview guidelines and analyzed using Colaizzi's steps. Results Findings of the study revealed that mothers raising children with autism encountered numerous problems in their life. They felt physically exhausted due to the continuous supervision of their child. Emotional problems such as denial, upset/sadness, and worry were also common among them. In addition, all mothers faced social problems such as social blame, social isolation, and ignorance from their relatives and society due to the atypical behavior of their child. Furthermore, the economic problem was also acute among mothers due to job loss, costly medical treatment, and therapies. So, to deal with the stressors they faced, mothers adopted various coping strategies such as respite care, problem-focused strategies, religious coping, and positive coping in their everyday life. Conclusion In conclusion, to the authors' knowledge, this is the first study documenting the experiences of Nepalese mothers having autistic children. Hence, health care professionals need to pay more attention to address the problems of mothers while treating their autistic children. The Government of Nepal also needs to formulate a policy for the rehabilitation of autistic children in society.

Misleading Entry Wounds From Atypical Bullet Behavior.

Some pistol bullets exhibit atypical wound ballistic behavior that can result in misleading and misinterpreted entry gunshot wounds. We demonstrate the atypical performance and behavior of these bullets using (1) high-speed videography of projectiles penetrating, perforating, and exiting soft tissue simulants; (2) Doppler radar tracking throughout simulated wound production; (3) downrange witness panels to record postperforation bullet orientation during a secondary impact; (4) laser tracking to assess and compare postperforation bullet deflection; (5) evaluation of "bullet wipe" around entry bullet holes in a victim's clothing; and (6) projectile penetration depth for differentiating primary from secondary gunshot wounds. Truncated cone and certain flat-point full-metal-jacketed pistol bullets in the 3 most common calibers of 9 mm, .40 caliber, and .45 caliber typically perforate the victim with little or no yawing, producing straight wound tracks and continuing to travel nose forward upon exiting. Any secondary gunshot victim downrange sustains a normal-appearing entry wound. Common pistol bullets exiting gunshot victims are typically destabilized and enter a yawing or tumbling flight, resulting in entry wounds that appear as typical, first strike entry wounds when in fact, they are secondary gunshot wounds. However, some bullets retain their nose-forward flight after emerging from a gunshot victim. These secondary but normal-appearing, round-shaped entry wounds may be erroneously identified as direct, primary strikes.

Effects of Zr addition on lattice strains and electronic structures of NbTaTiV high-entropy alloy

The room-temperature (RT) deformation behavior for two single-phase body-centered-cubic (BCC) refractory high-entropy alloys (RHEAs), NbTaTiV and NbTaTiVZr, has been comprehensively investigated via in-situ neutron-diffraction experiments. Our work shows that the addition of Zr leads to the transition of mechanical response from ductile to brittle behavior. The results of lattice-strain evolutions obtained from in-situ neutron diffraction for the ductile NbTaTiV RHEA exhibit atypical plastic-deformation behavior, i.e., the reduced plastic-anisotropic deformation, leading to an even distribution of the applied stress amongst the grains with different orientations rather than forming stress concentrations in {200}-oriented grains during plastic-deformation. Density functional theory (DFT) analysis shows that NbTaTiVZr has a lower electron density at the Fermi level, larger lattice distortion, and stronger charge transfer, as compared to NbTaTiV, suggesting higher strength and lower ductility in NbTaTiVZr, which are consistent with the current experimental results.

Detection of the serological markers hepatitis B virus surface antigen (HBsAg) and hepatitis B core IgM antibody (anti-HBcIgM) in the diagnosis of acute hepatitis B virus infection after recent exposure.

The serological diagnosis of acute hepatitis B virus (HBV) infection after recent exposure has been established by the hepatitis B virus surface antigen (HBsAg) and anti-hepatitis B core IgM antibody (anti-HBcIgM) detection in serum, sometimes accompanied by the detection of hepatitis B "e" antigen (HBeAg). Despite this characteristic serological profile, misdiagnosis can occur in cases of unexpected or atypical behavior of the serological markers in the bloodstream, or if the true meaning of its expression is not properly investigated, or even if there is a possibility of interference from factors not necessarily linked to the infectious process, in the detection of these markers. This review discusses the influence of these variables on laboratory results for these two serological markers and, therefore, the potential risk of these variables compromising the correct diagnosis of acute infection after recent HBV exposure.

Large Deviations for Subcritical Bootstrap Percolation on the Erd\u0151s\u2013R\xe9nyi Graph

We study atypical behavior in bootstrap percolation on the Erdős–Rényi random graph. Initially a set S is infected. Other vertices are infected once at least r of their neighbors become infected. Janson et al. (Ann Appl Probab 22(5):1989–2047, 2012) locates the critical size of S, above which it is likely that the infection will spread almost everywhere. Below this threshold, a central limit theorem is proved for the size of the eventually infected set. In this work, we calculate the rate function for the event that a small set S eventually infects an unexpected number of vertices, and identify the least-cost trajectory realizing such a large deviation.

Brief Report: Replication of the Five-Factor Structure of the Autism Impact Measure (AIM) in an Independent Sample.

The Autism Impact Measure is a caregiver-reported, behaviorally based measure designed to assess both frequency and functional impact of core ASD symptoms in children. This study used confirmatory factor analysis to determine if the factor structure of the AIM (Repetitive Behavior, Communication, Atypical Behavior, Social Reciprocity, and Peer Interaction), previously reported by Mazurek et al. (Journal of Autism and Developmental Disorders 50: 2307-2319, 2020), was supported in a large (n = 611), independent sample. The sample was diverse in age (2-16years) and IQ (M = 76.6, SD = 22.7), but was composed of approximately 80% males. There were some nuanced differences between this study and Mazurek et al. (Journal of Autism and Developmental Disorders 50: 2307-2319, 2020), but findings generally provided further evidence supporting the psychometric properties of the AIM.

Disrupted affective communication characterizes mothers of infants with disorganized but also ambivalent attachments: An Israeli study.

This study examined whether maternal disrupted communication, which is associated with disorganized infant attachment, also characterizes mothers of ambivalent infants. The study, conducted in Israel, included a Jewish sample (N=163; 68 Girls) from diverse socioeconomic status, collected between 1991 and 1993 in an earlier study. The sample over-represented ambivalent and disorganized attachments. Attachment was assessed in the Strange Situation Procedure (SSP) at 12months and disrupted communication was coded from the SSP using the Atypical Maternal Behavior Instrument for Assessment and Classification (AMBIANCE; Lyons-Ruth et al., 1999). Mothers of ambivalent infants showed higher disrupted communication than mothers of secure, avoidant, and disorganized infants. The findings shed further light on the correlates of ambivalent attachment and call for research regarding maternal and infant characteristics that differentiate ambivalent versus disorganized attachment.

Abnormal cortical responses elicited by audiovisual movies in patients with autism spectrum disorder with atypical sensory behavior: A magnetoencephalographic study

BackgroundAtypical sensory behavior disrupts behavioral adaptation in children with autism spectrum disorder (ASD); however, neural correlates of sensory dysfunction using magnetoencephalography (MEG) remain unclear. MethodWe used MEG to measure the cortical activation elicited by visual (uni)/audiovisual (multisensory) movies in 46 children (7–14 years) were included in final analysis: 13 boys with atypical audiovisual behavior in ASD (AAV+), 10 without this condition, and 23 age-matched typically developing boys. ResultsThe AAV+ group demonstrated an increase in the cortical activation in the bilateral insula in response to unisensory movies and in the left occipital, right superior temporal sulcus (rSTS), and temporal regions to multisensory movies. These increased responses were correlated with severity of the sensory impairment. Increased theta-low gamma oscillations were observed in the rSTS in AAV+. ConclusionThe findings suggest that AAV is attributed to atypical neural networks centered on the rSTS.