CTprintNet: An Accurate and Stable Deep Unfolding Approach for Few-View CT Reconstruction

In this paper, we propose a new deep learning approach based on unfolded neural networks for the reconstruction of X-ray computed tomography images from few views. We start from a model-based approach in a compressed sensing framework, described by the minimization of a least squares function plus an edge-preserving prior on the solution. In particular, the proposed network automatically estimates the internal parameters of a proximal interior point method for the solution of the optimization problem. The numerical tests performed on both a synthetic and a real dataset show the effectiveness of the framework in terms of accuracy and robustness with respect to noise on the input sinogram when compared to other different data-driven approaches

Transformasi Budaya Ikat Namo di Kampung Harapan Kecamatan Sungai Apit Kabupaten Siak

The problem formulation in this research is how is the transformationof ikat namo culture in Harapan Village, Sungai Apit Subdistrict, Siak District? Thepurpose of this research is to know the transformation of namo bunch culture inHarapan Village, Sungai Apit Subdistrict, Siak District. The type of this research isdescriptive naturalistic with qualitative approach. The subject of this research as manyas 6 people, the technique of taking the data source is by snowball sampling. Theinstrument of this study used participant observation, interview and documentation. Theresults of the analysis carried out then can in the conclusion of the process oftransformation of namo culture is through three stages, namely the preliminary stage,the stage of implementation and the final stage

Centrifuge testing of a bridge pier on a rocking isolated foundation supported on unconnected piles

Volume conduction models can help in acquiring knowledge about the distribution of the electric field induced by transcranial magnetic stimulation. One aspect of a detailed model is an accurate description of the cortical surface geometry. Since its estimation is difficult, it is important to know how accurate the geometry has to be represented. Previous studies only looked at the differences caused by neglecting the complete boundary between cerebrospinal fluid (CSF) and grey matter (Thielscher et al 2011 NeuroImage 54 234-43, Bijsterbosch et al 2012 Med. Biol. Eng. Comput. 50 671-81), or by resizing the whole brain (Wagner et al 2008 Exp. Brain Res. 186 539-50). However, due to the high conductive properties of the CSF, it can be expected that alterations in sulcus width can already have a significant effect on the distribution of the electric field. To answer this question, the sulcus width of a highly realistic head model, based on T1-, T2- and diffusion-weighted magnetic resonance images, was altered systematically. This study shows that alterations in the sulcus width do not cause large differences in the majority of the electric field values. However, considerable overestimation of sulcus width produces an overestimation of the calculated field strength, also at locations distant from the target location

O coaching de carreira como recurso facilitador do processo de transição profissional

O presente estudo tem como objetivo analisar a percepção de coachees sobre as técnicas do coaching de carreira como apoio à transição profissional. Pretende-se identificar as estratégias adotadas durante o programa e descrever como o coaching contribui para as reflexões de indivíduos. Trata-se de pesquisa de natureza qualitativa e exploratória. Foram realizadas entrevistas semiestruturadas com sete pessoas que contrataram o referido programa. Os resultados analisados com base na técnica de análise de conteúdo demonstraram que o coaching de carreira: i) favorece o aprofundamento do autoconhecimento; ii) ajuda no encontro de propósito profissional; iii) auxilia na superação de certas barreiras da transição; e iv) incentiva a criação de uma agenda de aprendizagem da nova profissão

Esophageal Varices Bleeding in Portal Hypertension Due to Portal Vein and Splenic Vein Obstruction

Based on its relation to the liver sinusoid, increased pressure of portal vein can occur at three levels: presinusoid, sinusoid ,and postsinusoid. Obstruction of the presinusoid veins can be caused by extra- hepatic condition such as venous thrombosis. We reported a case of portal hypertension with esophageal varices bleeding was a result of obstruction due to thrombosis of the splenic vein and portal vein under hypercoagulant conditions due to thrombocytosis. The management of esophageal varices was sclerotherapy while for overcome the thrombosis the patient was given hydroxy urea

Gastric Mucosa Mucous Layer Thickness in Liver Cirrhosis with Portal Hypertensive Gastropathy Compare to Functional Dyspepsia

Background: This study aimed to investigate gastric mucosa mucous layer thickness in portal hypertensive gastropathy (PHG) compare to normal mucosa in functional dyspepsia and its correlation with several variables such as child class, severity of esophageal varices and gastropathy. Methods: Biopsy specimens were taken from the antrum and corpus from both group of patients with PHG and functional dyspepsia. The specimen was given cryometric for frozen section. Tissue were sliced by sagital section 11 µm, placed in object glass, fixed and stained to evaluate mucous thickness and giemsa stained to observe Helicobacter pylori. Measurement of mucous thickness was done upward muscularis mucosa started from upper epithelial layer from foveale tip until outer mucous layer on 15 points which were marked randomly and calculate the mean value by micrometer (µm). Results: Mean value of antral mucous thickness in PHG was 13.30 ± 6.5 µm, while in the functional dyspepsia it was 25.59 ± 5.66 µm. Statistical analysis for both kinds of mucous thickness was p<0.001. Mean corpus mucous thickness in PHG was 10.6 ± 6.81 µm, while mucous thickness in dyspepsia was 32.54 ± 6.51 µm. Statistical analysis revealed p<0.001. This result showed significant difference of mucous thickness of antrum and corpus statistically between PHG and dyspepsia as control group. Conclusion: The study had proven the presence of decreased gastric mucosa mucous layer thickness in corpus and antrum in PHG. Thus, therapeutic approach to increase mucous thickness must be considered in patients with PHG

Growth hormone-releasing hormone resistance in pseudohypoparathyroidism type Ia: New evidence for imprinting of the Gsα gene

Heterozygous inactivating mutations in the Gs\u3b1 gene cause Albright's hereditary osteodystrophy. Consistent with the observation that only maternally inherited mutations lead to resistance to hormone action [pseudohypoparathyroidism type Ia (PHP Ia)], recent studies provided evidence for a predominant maternal origin of Gs\u3b1 transcripts in endocrine organs, such as thyroid, gonad, and pituitary. The aim of this study was to investigate the presence of pituitary resistance to hypothalamic hormones acting via Gs\u3b1-coupled receptors in patients with PHP Ia. Six of nine patients showed an impaired GH responsiveness to GHRH plus arginine, consistent with a complete GH deficiency (GH peak from 2.6-8.6 \u3bcg/liter, normal > 16.5), and partial (GH peak 13.9 and 13.6 \u3bcg/liter) and normal responses were found in two and one patient, respectively. Accordingly, IGF-I levels were below and in the low-normal range in seven and two patients. All patients had a normal cortisol response to 1 \u3bcg ACTH test, suggesting a normal corticotroph function that was confirmed by a normal ACTH and cortisol response to CRH test in three patients. In conclusion, we report that in addition to PTH and TSH resistance, patients with PHP Ia display variable degrees of GHRH resistance, consistent with Gs\u3b1 imprinting in human pituitary

Strategic management of virtual education for quality of learning in university students, Covid-19, Peru

The objective of this review article is to describe the strategic management that was given to virtual education in such a way as to guarantee a quality standard of learning for university students in times of pandemic. For this, through a bibliographic review, the state of the art of university management provided during the COVID-19 pandemic is reviewed, in which higher-level educational institutions through their respective administrative areas in union with the state they looked for ways to be able to resume academic activities that had to cease due to the confinement decreed by the Peruvian state, due to this, virtual education was chosen, a model that allowed continuing academic activities, however this led to various new challenges that had to be faced as the model was implemented. It is concluded that, although virtual education in its initial implementation caused various problems, thanks to the strategic management provided by the different universities hand in hand with the Peruvian state, it is possible to provide a quality education taking advantage of the multiple benefits that education offers. virtual