Presence Of Ruptures Research Articles

Війна в Україні: нові виклики для археології

As a result of the Russian aggression, which began in 2014, hundreds, if not thousands, of cultural heritage sites were destroyed or damaged to one degree or another. Against this background, the objects of archaeological heritage, which include settlements, hillforts, barrows, burial mounds (kurgans), etc., stand out. Work on collecting information on damaged archaeological sites began back in 2014. In 2016, after a monitoring mission to study the state of archaeological heritage in the war zone within the territory of Luhansk region, information began to be collected somewhat more actively. Starting from February 2022, when even more Ukrainian territory was subjected to military action, even more archaeological heritage sites were damaged or completely destroyed. Identification and analysis of cases related to the destructive impact of the war on the archaeological heritage is the main task for the near future. Therefore, there is an urgent need to develop methodological recommendations. The publication proposes the allocation of three conditional groups of locations of archaeological heritage objects: group A - objects in the zone of cessation of hostilities or in the zone of active hostilities in the unoccupied territory (controlled by Ukraine); group B - objects in the zone close to the front line, military operations were not carried out, but archaeological objects were damaged by the military (territory controlled by Ukraine); group C - objects in the zone where hostilities are no longer taking place, or in the zone of active military operations in the occupied territory. Given the existing information, a preliminary typology of the nature of damage to archaeological heritage objects was developed, which includes 6 items: 1. mounds with partially destroyed embankments as a result of shelling (presence of ruptures from explosions); 2. mounds damaged as a result of the arrangement of protective structures/support and observation point or firing points with the help of machinery or hand tools; 3. settlements, hillforts, and ground necropolis, on the day surface of which there are ruptures from explosions (the integrity of the object is damaged); 4. settlements, hillforts, and ground necropolis that were damaged or destroyed as a result of the construction of protective structures; 5. mined areas; 6. areas with objects of archaeological heritage allocated for large-scale construction of military infrastructure (Crimean Peninsula). The construction of civil infrastructure in the occupied territories is a topic for a separate study. In all cases, the degree of damage is indicated separately. The possibility of supplementing or correcting the data is not excluded, since the research process is at the stage of development. It also offers 4 ways of obtaining information about the facts of the destruction of archaeological heritage sites, including private messages, monitoring of social networks and specialized forums, visual monitoring, and research of satellite images. Key words: archaeological heritage, war, Ukraine, methodology.

Radiological and clinical outcomes of endovascular coiling of proximal A1 aneurysms

Aneurysms of the proximal anterior cerebral artery (A1) are rare. Of these A1 aneurysms, proximal A1 aneurysms are among the most challenging for endovascular coiling. This study aimed to evaluate the angiographic features and radiological and clinical outcomes of endovascular coiling of proximal A1 aneurysms. We recruited 38 patients with 38 proximal A1 aneurysms treated with endovascular coiling between September 2005 and April 2016. Baseline patient characteristics, aneurysm morphology, endovascular treatment techniques, immediate post-procedural radiological outcome, and follow-up clinical and radiological outcomes were evaluated, as were risk factors for recurrence. Sixteen proximal A1 aneurysms ruptured (42.1%). Six procedural complications (15.8%), including 5 thromboembolisms and 1 coil migration, were noted. There was no procedural morbidity or mortality. Immediate post-procedural radiological outcomes showed complete occlusion in 23, residual necks in 12, and residual sacs in 3 lesions. Follow-up angiographic outcomes were possible for 28 lesions (73.7%). Follow-up angiography showed sac recurrence in 3 (10.7%) and neck recurrence in 3 (10.7%) lesions. Retreatment was performed in 4 lesions (14.3%); all were treated by endovascular coiling. The presence of aneurysmal ruptures was only significant regarding recurrence in univariate logistic regression analysis. In our study, endovascular coiling of proximal A1 aneurysms was associated with a relatively high rate of procedural complications but not with procedural morbidity and mortality. The recurrence and retreatment rates of endovascular coiling of proximal A1 aneurysms were relatively high, and presence of rupture was significant for recurrence.

Estudo do potencial de geração de energia elétrica a partir do biogás de digestão anaeróbia de resíduos alimentares

A fim de encontrar maneiras sustentáveis de destinar os resíduos orgânicos, busca-se atualmente utilizar-se de processos biológicos para tratamento, sendo possível utilizar seus derivados como fonte de energia e adubo. O artigo tem como objetivo analisar os dados de uma pesquisa a qual avaliou o potencial energético do biogás produzido a partir da biodigestão anaeróbia do resíduo alimentar produzido pelo restaurante Sem Nome no município de Itajubá – MG. Foi construído um projeto piloto, constituído por três garrafas PET´s, as quais serviram como reatores, além de outros objetos como válvula de gás, mangueira de alta pressão e controle de temperatura. Foi monitorado a produção de CH4, CO, CO2, O2, H2S, Temperatura e Pressão, além da realização de análises físicas e químicas as quais avaliaram os parâmetros como ST, STF, SV, DBO, DQO e pH. A concentração de CH4 no biogás, assim como o potencial energético, foram estimados teoricamente, devido a falhas no sistema de biodigestão como quedas constantes de temperatura e presença de rupturas nos reatores, causando infiltração de gás atmosférico. Portando, considerando condições favoráveis para realização da biodigestão anaeróbia, e com base em dados fornecidos pela literatura, estimou-se a produção de CH4, assim como o potencial energético do restaurante, conferindo 65,65 L/dia de CH4 durante a semana e 87,54 L/dia nos fins de semanas e feriados, disponibilizando mensalmente 6.569,86 kWh de energia. Com esses dados, foi possível confirmar a eficiência da metanização como um sistema sustentável de destinação dos resíduos orgânicos, além de auxiliar na geração de energia elétrica.

The impact of sex offender’s interpersonal style, treatment readiness and the therapeutic alliance on treatment gain

The impact of internal responsivity factors and therapeutic process variables on intra-individual within-treatment gain in sex offenders has received little empirical attention. This study examined how (1) internal responsivity factors, including treatment readiness and interpersonal style, and (2) therapy process variables, including the therapeutic alliance and the presence of ruptures in the therapeutic relationship, impacted intra-individual within-treatment gain. Participants comprised 71 sex offenders who participated in group-based sex offender treatment programmes in prison or the community. Results showed that offender hostile-dominance and the affective and interpersonal characteristics of psychopathy, as measured by the Psychopathy Checklist: Screening Version Factor 1 score, negatively impacted treatment gain. Pre-treatment readiness, client ratings of the therapeutic alliance and whether or not there were ruptures in the therapeutic relationship had no association with within-treatment gain. The strength of the therapeutic alliance later in treatment did not moderate the relationship between offender interpersonal style, or psychopathy, and treatment gain.

Scanning electron microscopy assessment of the Descemet membrane interface during DMEK graft preparation

We set out to determine microscopic characteristics of the Descemet membrane interface during Descemet membrane endothelial keratoplasty (DMEK) graft preparation. Ten corneas were partially prepared, preserving half of the Descemet membrane attached to the stroma to enable visualisation of the Descemet-stroma interface. This tissue was prepared for viewing with a scanning electron microscope. The Descemet-stroma interface was categorised into three regions: centre, mid-periphery and periphery. We classified adhesions in these regions as either minor thread-like adhesions or major bridge-like adhesions with stromal detachments. We found a region-specific differentiation of the Descemet-stroma morphology. The presence of minor (P = 0,0001) and major (P = 0,0001) adhesions at the explored regions of the Descemet-stroma interface were found to be statistically significant. Fibrotic linear adhesions were predominant in the centre and mid-periphery, whereas the larger bridge-like adhesions were found mainly in the periphery. In addition, we observed a positive correlation between the size of the adhesions and the presence of ruptures in the underlying stromal bed. Viewing of the Descemet-stroma interface with electron microscopy reveals morphological differences between the centre of a graft and its periphery. These findings are of potential clinical relevance in terms of developing a better understanding of tissue behaviour during graft preparation.

An Investigation of the Relationship Between the Alliance Negotiation Scale and Psychotherapy Process and Outcome.

This study examines the validity of the Alliance Negotiation Scale (ANS) in a psychotherapy research program. Analyses were designed to evaluate the relationship between the ANS and psychotherapy process and outcome variables. Data were collected in a metropolitan psychotherapy research program. Participants completed 30 sessions of therapy, postsession assessments, and a battery of measures at intake and termination. Relationships were found between the ANS and session outcome, working alliance, and the presence of ruptures and their resolution. Relationships emerged between the ANS and treatment outcome on measures of psychiatric distress and interpersonal problems. The ANS demonstrated relationships with several psychotherapy process and outcome variables. The ANS was the most differentiated from the working alliance on measures of interpersonal functioning and in discriminating personality disorder pathology. These results extend previous findings on the ANS' psychometric integrity, and offer new data on the relationship between negotiation and treatment outcome.

Can ultrasound of plantar plate have normal appearance with a positive drawer test?

ObjectivesThe aims of this study were (1) to evaluate the reliability of ultrasound (US) examination in the identification and measurement of the metatarsophalangeal plantar plate (MTP-PP) in asymptomatic subjects and (2) to establish the correlation of US findings with those of physical examination and magnetic resonance imaging (MRI), once it is an important tool in the evaluation of the instability syndrome of the second and third rays. Materials and MethodsUS examinations of the second and third MTP-PPs were performed in eight asymptomatic volunteers, totaling 32 MTP joints, by three examiners with different levels of experience in musculoskeletal US. Plantar plate dimensions, integrity and echogenicity, the presence of ruptures, and confidence level in terms of structure identification were determined using conventional US. Vascular flow was assessed using power Doppler. US data were correlated with data from physical examination and MRI. ResultsMTP-PPs were ultrasonographically identified in 100% of cases, always showing homogeneous hyperechoic features and no detectable vascular flow on power Doppler, with 100% certainty in identification for all examiners. There was excellent US inter-observer agreement for longitudinal measures of second and third toe MTP-PPs and for transverse measures of the second toe MTP-PP. The MTP drawer test was positive for grade 1 MTP instability in 34.4% of joints with normal US results. Transverse MTP-PP measures were significantly higher in individuals with positive MTP drawer test. US measures and characteristics of MPT-PPs were positively correlated with those of MRI. ConclusionsUS is efficient in identifying and measuring MPT-PPs and may complement physical examination. A grade 1 positive MTP drawer test may be found in asymptomatic individuals with normal MPT-PPs, as assessed by imaging.

On a more precise assessment of seismic hazards for the city of Ulaanbaatar, Mongolia

The recent geological, geophysical, and paleoseismic research of the Hustai, Emeelt, and Gunjiin active seismogenic faults in the vicinity of Ulaanbaatar provided evidence of prehistoric seismic events there. In particular, dislocations of two fault-forming paleo-earthquakes were revealed in the Gunjiin tectonic zone. The shocks occurred in the Late Pleistocene-Early Holocene. The presence of ruptures, initially identified by morphological characteristics, was proven by trenching studies and materials of geophysical profiles. The magnitudes of the ancient earthquakes are estimated to be 6.5–7.0. The obtained results provide grounds for reassessment of the possible level of seismic hazards for the territory of Ulaanbaatar to at least 8.

In vitro validation of intravascular ultrasound imaging after balloon angioplasty of coronary artery stenoses

Systematic studies of intravascular ultrasound imaging of in vitro balloon angioplasty on coronary arteries with a greater than 50% diameter stenosis on angiogram have not been performed. We used 23 plasma-perfused postmortem human coronary arteries with an angiographic diameter stenosis of ≥50%. After balloon dilation the vessels were examined by 30-MHz intravascular ultrasound imaging (IVUS) and the presence of ruptures and dissections was noted. Ruptures were defined as disruptions of the vessel wall in a radial direction, and dissections were defined as disruptions in a circumferential direction. After pressure fixation they were studied by histology. On IVUS, 24 vessel wall disruptions were diagnosed in 14 arteries. On histology, 29 disruptions were diagnosed in 19 arteries. The sensitivity of IVUS for the detection of disruptions was 79%, the specificity was 75%. Total agreement was 79%. Accuracy was better for dissections (total agreement 96%) than for ruptures (total agreement 74%). Shadowing behind calcium and close contact of the catheter to the arterial wall were important sources of error in the IVUS analysis. We conclude that intravascular ultrasound imaging is accurate for the detection of disruptions after balloon angioplasty of angiographically significant coronary artery stenoses.