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Anton S Petrov, Elizabeth C Wood, Chad R Bernier, Ashlyn M Norris, Alan Brown, A Amunts
Mitochondrial ribosomes (mitoribosomes) are essential components of all mitochondria that synthesize proteins encoded by the mitochondrial genome. Unlike other ribosomes, mitoribosomes are highly variable across species. The basis for this diversity is not known. Here, we examine the composition and evolutionary history of mitoribosomes across the phylogenetic tree by combining three-dimensional structural information with a comparative analysis of the secondary structures of mitochondrial rRNAs (mt-rRNAs) and available proteomic data...
December 4, 2018: Molecular Biology and Evolution
Jiseon Oh, Cheong-Il Shin, Sang Youn Kim
PURPOSE: To investigate the imaging features of cyst infection in autosomal dominant polycystic kidney disease (ADPKD) patients using computed tomography (CT) and ultrasonography (US). MATERIALS & METHODS: The institutional review board approved this retrospective study. Fifty-one episodes with proven cyst infection in forty-three ADPKD patients were included. Two experienced abdominal radiologists reviewed CT and US images and evaluated the following imaging features in consensus: cyst size, location, cyst shape, intracystic attenuation, intracystic echogenicity, intracystic heterogeneity, wall thickness, the presence of fluid-fluid level, septation, intracystic gas, pericystic fat infiltration, and pericystic hyperemia...
2018: PloS One
Jan Ketil Arnulf, Kai Rune Larsen, Øyvind Lund Martinsen
Research on sensemaking in organisations and on linguistic relativity suggests that speakers of the same language may use this language in different ways to construct social realities at work. We apply a semantic theory of survey response (STSR) to explore such differences in quantitative survey research. Using text analysis algorithms, we have studied how language from three media domains-the business press, PR Newswire and general newspapers-has differential explanatory value for analysing survey responses in leadership research...
2018: PloS One
A J Delgado, E M Castellanos, Mac Sinhoreti, D C Oliveira, N Abdulhameed, S Geraldeli, T A Sulaiman, J-F Roulet
OBJECTIVE: To evaluate the effect of different photoinitiator systems on photopolymerizing resin cements through ceramic veneers with different thickness on microshear bond strength (μSBS), flexural strength (FS), and ultimate tensile strength (UTS) and verify the light attenuation through these ceramic veneers. METHODS AND MATERIALS: Four photopolymerizing experimental resin cements were produced with the same resin matrix and associated with four different photoinitiator systems: camphorquinone (CQ), diphenyl(2,4,6-trimethylbenzoyl)phosphine oxide (TPO), Ivocerin, and TPO + Ivocerin...
December 5, 2018: Operative Dentistry
Lekha Paramanik, K Hemalata Reddy, Sabiha Sultana, Kulamani Parida
Erection of a resourceful p-n heterojunction is a state-of-the-art tactic to flourish the charge anti-recombination process at the heterojunction interface and boost the photocatalytic activities under visible light irradiation. In the present work, we have engineered a new series of PbTiO3 /LaCrO3 (PT/LC) p-n heterojunction through a facile two-step combustion process. The structural, interface, and optical analysis distinctly revealed a strong intact between p-type LaCrO3 and n-type PbTiO3 , elucidating their electronic channelization and substantial reduction of electron-hole recombination at the PbTiO3 /LaCrO3 interface, which extend the lifetime and population of photogenerated charges in the p-n heterojunction material...
December 5, 2018: Inorganic Chemistry
Daniel Ruhland, Kenneth Chinedu Nwoko, Magali Perez, Joerg Feldmann, Eva M Krupp
The coupling of flow field flow fractionation (FlFFF) with ICP-MS/MS for the fractionation and analysis of natural nanoparticles in environmental samples is becoming more popular. However, the applicability of this technique to non-aqueous samples such as gas condensates from petroleum hydrocarbon samples has not been reported yet. In this study, an asymmetric flow-field flow fractionation (AF4) system coupled with UV and MALS detectors has been optimized to perform the fractionation of natural nanoparticles present in a gas condensate sample, using THF as the carrier liquid...
December 5, 2018: Analytical Chemistry
Suyi Li, Hongbin Fang, Sahand Sadeghi, Priyanka Bhovad, Kon-Well Wang
Origami, the ancient Japanese art of paper folding, is not only an inspiring technique to create sophisticated shapes, but also a surprisingly powerful method to induce nonlinear mechanical properties. Over the last decade, advances in crease design, mechanics modeling, and scalable fabrication have fostered the rapid emergence of architected origami materials. These materials typically consist of folded origami sheets or modules with intricate 3D geometries, and feature many unique and desirable material properties like auxetics, tunable nonlinear stiffness, multistability, and impact absorption...
December 5, 2018: Advanced Materials
Yalın Tolga Yaylalı, Güzin Fidan-Yaylalı, Beray Can, Hande Şenol, Mehmet Kılınç, Mustafa Yurtdaş
OBJECTIVE: Body mass index (BMI) and waist circumference (WC) as measures of obesity have some limitations. The aim of this study was to evaluate whether one measure could predict the presence of diastolic dysfunction (DD) more accurately than the other measures. METHODS: A total of 91 obese patients without any other risk factors for DD were prospectively enrolled. Echocardiographic examination was performed. DD was defined and categorized according to recent guidelines...
December 2018: Türk Kardiyoloji Derneği Arşivi: Türk Kardiyoloji Derneğinin Yayın Organıdır
Kiwoon Baek, Ahyoung Choi, Yung Mi Lee, Hong Kum Lee, Jang-Cheon Cho
A Gram-stain-negative, non-motile, oxidase- and catalase-positive, rod-shaped bacterium was isolated from a coastal seawater sample from the Arctic Circle and designated strain IMCC9719T . On the basis of 16S rRNA gene sequence analysis, it was shown that strain IMCC9719T belonged to the genus Leucothrix and was closely related to the type strains of Leucothrix pacifica (97.6 % similarity) and Leucothrix mucor (95.1 %), while the strain shared <90.6 % sequence similarity with other bacterial species...
December 2018: International Journal of Systematic and Evolutionary Microbiology
Chu-Jin Ruan, Xiao-Wei Zheng, Jian Wang, Lei Song, Ya-Xin Zhu, Wen-Bin Du, Zu-Jun Lu, Ying Huang, Li Huang, Xin Dai
A novel aerobic, Gram-stain-negative bacterium, designated strain 2ED5T , was isolated from a deep seawater sample in the north-west Indian Ocean. Cells of the strain were oval- to rod-shaped, and motile by a polar flagellum or sessile by a prostheca. The strain formed creamy white colonies on 2216E marine agar plates. It grew at 10-40 °C (optimum 28 °C) and pH 5.0-8.0 (optimum pH 6.0-7.0). The strain required 1-6 % (w/v) NaCl for growth and grew optimally in the presence of 2-3 % NaCl. Phylogenetic analysis based on the 16S rRNA gene sequence showed that strain 2ED5T was affiliated with the genus Hyphobacterium in the family Hyphomonadaceae of the class Alphaproteobacteria, sharing 95...
December 2018: International Journal of Systematic and Evolutionary Microbiology
Katrine Bindesbøl Holm Johansen, Bodil Maria Pedersen, Tine Tjørnhøj-Thomsen
The practice of sending and receiving nude and semi-nude images without consent is gaining increasing public attention and has been identified as a new form of digital sexual violence, framing sexting as a risk behaviour. In order to account for the existence of non-consensual nude sharing among young people in Denmark, we set out to conduct an ethnographic exploration of the social processes, gender dynamics and social implications of the practice. Our analysis suggests that non-consensual sharing acts as a form of visual gossip to maintain social bonds and gendered recognition...
December 5, 2018: Culture, Health & Sexuality
Do-Keun Kim, Joohon Sung, Yun-Mi Song, Eung-Min Kim, Young Ho Kim, Seung-Hak Baek
OBJECTIVES: To investigate the difference in heritability of craniofacial skeletal and dental characteristics between hypodivergent and hyperdivergent patterns. MATERIALS AND METHODS: 53 Korean adult monozygotic (MZ) and dizygotic (DZ) twins and their siblings were divided into a hypodivergent group (Group 1, SN-MP < 35°, 17 MZ pairs; 11 DZ and sibling [DS] pairs of the same gender) and hyper-divergent group (Group 2, SN-MP > 35°, 16 MZ pairs; 9 DS pairs of the same gender)...
December 5, 2018: Angle Orthodontist
Miao Zhang, Meng-Zhou Zhang, Shu-Heng Wen, Ying-Fu Sun, Peng-Hao Jiang, Lin-Lin Wang, Rui Zhao, Chang-Liang Wang, Shu-Kun Jiang, Da-Wei Guan
HIPK2 is an evolutionarily conserved serine/threonine kinase and is considered a co-regulator of an increasing number of transcription factors modulating a variety of cellular processes, including inflammation, proliferation and fibrosis. Skeletal muscle injuries repair is an overlapping event between inflammation and tissue repair. There are no reports about HIPK2 expression in skeletal muscles after trauma. A foundational study on distribution and time-dependent expression of HIPK2 was performed by immunohistochemical staining, Western blotting and quantitative real-time PCR, which is expected to obtain a preliminary insight into the functions of HIPK2 during the repair of contused skeletal muscle in mice...
December 5, 2018: Histology and Histopathology
R Brito, A Specht, G L Gonçalves, G R P Moreira, E Carneiro, F L Santos, V F Roque-Specht, O H H Mielke, M M Casagrande
Spodoptera marima (Schaus, 1904) and Spodoptera ornithogalli (Guenée, 1852) are noctuid moths recognized for their economic importance in the New World. Historically, they have been considered cryptic species, being supposedly differentiated from each other by the absence of sexual dimorphism in S. marima, subtle differences in coloration on the hindwings and scale tufts of the ovipositor and the shape of male valva. The species are allopatric: North and Central America for S. ornithogalli and South America for S...
December 4, 2018: Neotropical Entomology
Farzad Amirabdollahian, Fahimeh Haghighatdoost
Frequently reported poor dietary habits of young adults increase their risk of metabolic syndrome (MetS). Excess adiposity is the most established predictor of MetS, and numerous anthropometric measures have been proposed as proxy indicators of adiposity. We aimed to assess prevalence of MetS in young adult population and to make comparison between weight- and shape-oriented measures of adiposity to identify the best index in association with measured body fat and as a risk predictor for MetS. Healthy males and females aged 18-25 years from the Northwest of England were recruited using convenience sampling ( n =550)...
2018: Journal of Obesity
Emre Dandıl
Lung cancer is one of the most common cancer types. For the survival of the patient, early detection of lung cancer with the best treatment method is crucial. In this study, we propose a novel computer-aided pipeline on computed tomography (CT) scans for early diagnosis of lung cancer thanks to the classification of benign and malignant nodules. The proposed pipeline is composed of four stages. In preprocessing steps, CT images are enhanced, and lung volumes are extracted from the image with the help of a novel method called lung volume extraction method (LUVEM)...
2018: Journal of Healthcare Engineering
Tong Wu, Fei Zhou, Adiilah K Soodeen-Lalloo, Xing Yang, Yingran Shen, Xi Ding, Jinpeng Shi, Jie Dai, Jingyun Shi
OBJECTIVES: Programmed death-ligand 1 (PD-L1) expression might serve as a predictive biomarker for immune checkpoint inhibitors in lung cancer. However, the relationship between PD-L1 expression and imaging features of lung cancer has not been fully understood. PATIENTS AND METHODS: A total of 350 patients with pathologically confirmed adenocarcinoma who received surgical treatment and had preoperative thin section computed tomography (CT) examination were included...
November 14, 2018: Clinical Lung Cancer
Jinrong Liu, Baolin Tian, Qi Zeng, Chenghao Chen, Chunju Zhou, Huimin Li, Yuelin Shen, Shunying Zhao
BACKGROUND: Mediastinal teratoma is uncommon in children. It can be very difficult to diagnose especially in early stage. Rarely, teratoma may rupture into adjacent structures and lead to lung lesions or pleuritis. The main rarity of our reported cases was the dynamic imaging findings very similar to the developmental process of tuberculosis in patients 1 and 2, the pachypleuritis in patients 2 and 3, the extremely elevated inflammatory markers very similar to empyema in patient 3, and the extremely atypical tumor shape in all patients...
December 4, 2018: BMC Pediatrics
Dun Cao, Bin Zheng, Jin Wang, Baofeng Ji, Chunhai Feng
Employment of a relay node can extend the coverage of a message in vehicular networks (VNET). In addition, the prior information regarding the road structure, which determines the structure of VNET, can benefit relay-node selection. However, the non-line-of-sight (NLOS) communication in the intersection scenarios and diverse shapes for the intersection hamper the design of a general relay-node selection on intersection. To resolve this problem, in this paper, we build a model to describe the general intersection, and propose a general relay-node selection method on intersection...
December 3, 2018: Sensors
Sang-Kon Lee, In-Kyu Lee, Sung-Yun Lee
The process design of a multi-pass steel profile drawing depends mainly on the experience of the industrial experts. Therefore, in the actual industrial field, a systematic design method is required to improve the efficiency of process design. Development of such a method will result in a reduction in production cost and time. In this study, a process design system that can be installed in AutoCAD V14 was developed. By using the developed design system, the drawing load, stress, and strain, among other parameters, can be calculated...
December 3, 2018: Materials
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