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| 1 | Small intestinal bacterial overgrowth syndrome显示文摘Human intestinal microbiota create a complex polymi-crobial ecology. This is characterised by its high population density, wide diversity and complexity of interaction. Any dysbalance of this complex intestinal microbiome, both qualitative and quantitative, might have serious health consequence for a macro-organism, including small intestinal bacterial overgrowth syndrome (SIBO).SIBO is defined as an increase in the number and/or alteration in the type of bacteria in the upper gastro-intestinal tract. There are several endogenous defence mechanisms for preventing bacterial overgrowth: gastric acid secretion, intestinal motility, intact ileo-caecal valve, immunoglobulins within intestinal secretion and bacte-riostatic properties of pancreatic and biliary secretion. Aetiology of SIBO is usually complex, associated with disorders of protective antibacterial mechanisms (e.g. achlorhydria, pancreatic exocrine insuff iciency, immuno-deficiency syndromes), anatomical abnormalities (e.g. small intestinal obstruction, diverticula, f istulae, surgical blind loop, previous ileo-caecal resections) and/or motility disorders (e.g. scleroderma, autonomic neuropathy in diabetes mellitus, post-radiation enteropathy, small intestinal pseudo-obstruction). In some patients more than one factor may be involved. Symptoms related to SIBO are bloating, diarrhoea, malabsorption, weight loss and malnutrition. The gold standard for diagnosing SIBO is still microbial investigation of jejunal aspirates. Noninvasive hydrogen and methane breath tests are most commonly used for the diagnosis of SIBO using glucose or lactulose. Therapy for SIBO must be com-plex, addressing all causes, symptoms and complica-tions, and fully individualised. It should include treatment of the underlying disease, nutritional support and cyclical gastro-intestinal selective antibiotics. Prognosis is usually serious, determined mostly by the underlying disease that led to SIBO. | Jan Bures Jiri Cyrany Darina Kohoutova Miroslav Frstl Stanislav Rejchrt Jaroslav Kvetina Viktor Vorisek Marcela Kopacova | 2010 | World Journal of Gastroenterology2010，16，24： | 52 |
| 2 | Wnt and BMP signaling crosstalk in regulating dental stem cells:Implications in dental tissue engineering显示文摘Tooth is a complex hard tissue organ and consists of multiple cell types that are regulated by important signaling pathways such as Wnt and BMP signaling.Serious injuries and/or loss of tooth or periodontal tissues may significantly impact aesthetic appearance,essential oral functions and the quality of life.Regenerative dentistry holds great promise in treating oral/dental disorders.The past decade has witnessed a rapid expansion of our understanding of the biological features of dental stem cells,along with the signaling mechanisms governing stem cell self-renewal and differentiation.In this review,we first summarize the biological characteristics of seven types of dental stem cells,including dental pulp stem cells,stem cells from apical papilla,stem cells from human exfoliated deciduous teeth,dental follicle precursor cells,periodontal ligament stem cells,alveolar bone-derived mesenchymal stem cells(MSCs),and MSCs from gingiva.We then focus on how these stem cells are regulated by bone morphogenetic protein(BMP)and/or Wnt signaling by examining the interplays between these pathways.Lastly,we analyze the current status of dental tissue engineering strategies that utilize oral/dental stem cells by harnessing the interplays between BMP and Wnt pathways.We also highlight the challenges that must be addressed before the dental stem cells may reach any clinical applications.Thus,we can expect to witness significant progresses to be made in regenerative dentistry in the coming decade. | Fugui Zhang Jinlin Song Hongmei Zhang Enyi Huang Dongzhe Song Viktor Tollemar Jing Wang Jinhua Wang Maryam Mohammed Qiang Wei Jiaming Fan Junyi Liao Yulong Zou Feng Liu Xue Hu Xiangyang Qu Liqun Chen Xinyi Yu Hue H.Luu Michael J.Lee Tong-Chuan He Ping Ji | 2016 | Genes & Diseases2016，3，4： | 16 |
| 3 | Chronic hepatitis B in pregnant women: Current trends and approaches显示文摘Chronic hepatitis B(CHB)is a significant public health problem worldwide.The aim of the present review is to summarize the actual trends in the management of CHB in pregnant women.The prevalence of hepatitis B virus(HBV)infection in pregnant women is usually comparable to that in the general population in the corresponding geographic area.All women have to be screened for hepatitis B surface antigen(HBsAg)during pregnancy.Additional examinations of pregnant women with CHB may include maternal hepatitis B e antigen,HBV viral load,alanine aminotransferase level,and HBsAg level.The management of pregnancy depends on the phase of the HBV infection,which has to be determined before pregnancy.In women of childbearing age with CHB,antiviral therapy can pursue two main goals:Treatment of active CHB,and vertical transmission prevention.During pregnancy,tenofovir is the drug of choice in both cases.A combination of hepatitis B immunoglobulin and vaccine against hepatitis B should be administered within the first 12 h to all infants born to mothers with CHB.In such cases,there are no contraindications to breastfeeding. | Maria Belopolskaya Viktor Avrutin Olga Kalinina Alexander Dmitriev Denis Gusev | 2021 | World Journal of Gastroenterology2021，27，23： | 15 |
| 4 | 轮胎用新补强材料的发展显示文摘 | 王梦蛟 张平 Khaled Mahmud Thierry Lanoye Viktor Vejins 涂学忠 | 2004 | 轮胎工业2004，24，8： | 11 |
| 5 | 干硬性混凝土制品生产工艺与技术的现状显示文摘传统的干硬性混凝土是水泥、集料和水的三组分体系,因此长期以来,人们认为对干硬性混凝土的配合比进行优化设计,好像没有必要。近年来,随着掺合料和外加剂的使用,现代的混凝土逐步演变成能进行配合比设计的五组分体系,而掌握这种体系需对混凝土原材料与性能之间的相互关系有深入了解。本文介绍优化配合比的一些基础知识,因为在进行配方优化时,对干硬性混凝土制品的成型试验特性尤为重要。本文介绍的几种方法,有别于研究普通塑性混凝土所用方法,有些可作为在砌块成型机上测定最佳密实参数的基础。文中还举例说明原材料研究方法和优化设计新型砌块成型机的方法。 | Viktor Mechtcherine Ulnich Palzer 崔玉忠 | 2010 | 建筑砌块与砌块建筑2010，，2： | 9 |
| 6 | Multifaceted signaling regulators of chondrogenesis:Implications in cartilage regeneration and tissue engineering显示文摘Defects of articular cartilage present a unique clinical challenge due to its poor self-healing capacity and avascular nature.Current surgical treatment options do not ensure consistent regeneration of hyaline cartilage in favor of fibrous tissue.Here,we review the current understanding of the most important biological regulators of chondrogenesis and their interactions,to provide insight into potential applications for cartilage tissue engineering.These include various signaling pathways,including fibroblast growth factors(FGFs),transforming growth factor b(TGF-b)/bone morphogenic proteins(BMPs),Wnt/b-catenin,Hedgehog,Notch,hypoxia,and angiogenic signaling pathways.Transcriptional and epigenetic regulation of chondrogenesis will also be discussed.Advances in our understanding of these signaling pathways have led to promising advances in cartilage regeneration and tissue engineering. | Jordan D.Green Viktor Tollemar Mark Dougherty Zhengjian Yan Liangjun Yin Jixing Ye Zachary Collier Maryam K.Mohammed Rex C.Haydon Hue H.Luu Richard Kang Michael J.Lee Sherwin H.Ho Tong-Chuan He Lewis L.Shi Aravind Athiviraham | 2015 | Genes & Diseases2015，2，4： | 9 |
| 7 | Blood pressure and stature in Helicobacter pylori positive and negative persons显示文摘To evaluate vital signs and body indices in Helicobacter pylori(H.pylori)positive and negative persons.A total of 22 centres entered the study.They were spread over the whole country,corresponding well to the geographical distribution of the Czech population.A total of 1818 subjects(aged 5-98 years)took part in the study,randomly selected out of 38147 subjects.H.pylori infection was investigated by means of a 13Curea breath test.Data on height,weight,systolic and diastolic blood pressure and heart rate were collected at the clinics of general practitioners.The overall prevalence of H.pylori infection was 30.4%(402/1321)in adults(≥18 year-old)and 5.2%(26/497)in children and adolescents(≤17 year-old).Once adjusted for age and gender,only a difference in body mass index remained statistically significant with H.pylori positive adults showing an increase of 0.6 kg/m2 in body mass index.Once adjusted for age and gender,we found a difference in height between H.pylori positive and H.pylori negative children and adolescents.On further adjustment for place of residence,this difference became statistically significant,with H.pylori positive children and adolescents being on average 3.5 cm shorter.H.pylori positive adults were significantly older compared to H.pylori negative subjects.Once adjusted for age and gender,H.pylori infection had no impact on body weight,body mass index and vital signs either in adults or children and adolescents.Chronic H.pylori infection appeared to be associated with short stature in children.H.pylori infection did not influence blood pressure,body weight and body mass index either in adults or children and adolescents. | Marcela Kopacova Ilona Koupil Bohumil Seifert Miluska Skodova Fendrichova Jana Spirkova Viktor Vorisek Stanislav Rejchrt Tomas Douda Ilja Tacheci Jan Bures | 2014 | World Journal of Gastroenterology2014，20，19： | 9 |
| 8 | 云母的命名显示文摘定义云母为层状硅酸盐。其结构单元由两个相向排列的四面体片(Ts)和夹于其间的一个八面体片(Os)组成。这些片构成一个单元层,层与层之间被非水化层间阳离子(I)分开,其顺序是:非水化阳离子层、四面体片、八面体片、四面体片、非水化阳离子层、四面体片、八面... | Milan Rieder,Giancarlo Cavazzini,Yurii S.D’yakonov, Viktor A.Frank Kamenetskii,Glauco Gottardi,Stephen Guggenheim,Pavel V.Koval′, Georg Muller,Ana M.R.Neiva,Edward W.Radoslovich,Jean Louis Robert, Francesco P.Sassi,Hiroshi Takeda,Zdenek Weiss,Davi | 1999 | 矿物岩石地球化学通报1999，18，3： | 8 |
| 9 | Evaluation of fully covered self-expanding metal stents in benign biliary strictures and bile leaks显示文摘AIM: To investigate the use of fully covered metal stents in benign biliary strictures (BBS) and bile leaks. METHODS: We studied 17 patients, at Harbor-UCLA Medical center (Los Angeles), with BBS (n=12) and bile leaks (n=5) from July 2007 to February 2012 that had received placement of fully covered self-expanding metal stents (FCSEMs). Fourteen patients had endoscopic placement of VIABIL (Conmed, Utica, New York, United States) stents and three had Wallflex (Boston Scientific, Mass) stents. FCSEMS were 8 mm or 10 mm in diameter and 4 cm to 10 cm in length. Patients were followed at regular intervals to evaluate for symptoms and liver function tests. FCSEMS were removed after 4 or more weeks. Resolution of BBS and leak was documented cholangiographically following stent removal. Stent patency can be defined as adequate bile and contrast flow from the stent and into the ampulla during endoscopic retrograde cholangiopancreatography (ERCP) without clinical signs and/or symptoms of biliary obstruction. Criterion for bile leak resolution at ERCP is defined as absence of contrast extravasation from the common bile duct, cystic duct remanent, or gall blad-der fossa. Rate of complications such as migration, and instent occlusion were recorded. Failure of endoscopic therapy was defined as persistent biliary stenosis or continuous biliary leakage after 12 mo of stent placement. RESULTS: All 17 patients underwent successful FC- SEMS placement and removal. Etiologies of BBS included: cholecystectomies (n=8), cholelithiasis (n=2), hepatic artery compression (n=1), pancreatitis (n=2), and Whipple procedure (n=1). All bile leaks occurred following cholecystectomy. The anatomic location of BBS varied: distal common bile duct (n=7), common hepatic duct (n=1), hepaticojejunal anastomosis (n=2), right intrahepatic duct (n=1), and choledochoduo-denal anastomatic junction (n=1). All bile leaks were found to be at the cystic duct. Twelve of 17 patients had failed prior stent placement or exchange. Resolution of the biliary strictures and bile leaks was achieved in 16 of 17 patients (94%). The overall median stent time was 63 d (range 27-251 d). The median stent time for the BBS group and bile leak group was 62 ± 58 d (range 27-199 d) and 92 ± 81 d (range 48-251 d), respectively. All 17 patients underwent successful FCSEMS removal. Long term follow-up was obtained for a median of 575 d (range 28-1435 d). Complications occurred in 5 of 17 patients (29%) and included: migration (n=2), stent clogging (n=1), cholangitis (n=1), and sepsis with hepatic abscess (n=1). CONCLUSION: Placement of fully covered self-expanding metal stents may be used in the management of benign biliary strictures and bile leaks with a low rate of complications. | David Lalezari Inder Singh Sofiya Reicher Viktor Ernst Eysselein | 2013 | World Journal of Gastrointestinal Endoscopy2013，5，7： | 8 |
| 10 | Significant decrease in prevalence ofHelicobacter pylori in the Czech Republic显示文摘AIM:To study possible decrease in prevalence of Helicobacter pylori(H.pylori) infection in the Czech Republic within a 10-year period.METHODS:A total of 22 centres entered the study.The catchment areas of these centres covered cities and towns with more than 20 000 inhabitants,smaller towns(≤ 20 000 inhabitants) with surrounding villages and rural areas,and were spread over the whole country,corresponding well to the geographical distribution of the Czech population.A total of 1 837 subjects(aged 5-98 years) took part in the study,randomly selected out of 38 147 people from the general population.H.pylori infection was investigated by means of a 13 C-urea breath test.Breath samples in duplicates were analysed using isotope ratio mass spectrometry.The cut-off point was 3.5.Social and demographic characteristics were based on data from self-completed questionnaires.RESULTS:The overall prevalence of H.pylori infection was 23.5%(430/1826),and 4.8%(20/420) in children aged 15 or less.There was no statistically significant difference in prevalence between males(24.3%;208/857) and females(22.9%,222/969,P = 0.494).H.pylori infection was strongly associated with higher age,among subjects aged 55+ years,prevalence of H.pylori infection was 39.8%(252/633,P < 0.001).The highest prevalence of H.pylori infection was found among persons aged 55-64 years(43.9%,97/221) and 75+ years(37.9%,58/153).Among study subjects aged 15+ years,prevalence of H.pylori infection was significantly increased in those with lowest education(odds risk 3.19,95% CI 1.87-5.47).Compared to never married(14.1%),the prevalence of H.pylori infection was statistically significantly higher among married(35.4%,246/694,P < 0.001),divorced(36.8%,49/133,P < 0.001) and widowed study subjects(40.2%,45/112,P < 0.001),both in minimally and fully adjusted analysis.There was no significant difference in the prevalence of H.pylori infection between married and widowed subjects(35.4%,246/694 vs 40.2%,45/112,P = 0.389).There was little variation in smoking prevalence across categories of smoking and there was no evidence of an increased risk ofH.pylori infection among current or past smokers in our data(odds risk 1.04 with 95% CI 0.78-1.40 for current smokers;odds ratio 0.83 with 95% CI 0.60-1.16 for former smokers).The current prevalence of H.pylori in 2011 was significantly lower compared to the prevalence reported from identical geographical areas in 2001(23.5%vs 41.7%,P < 0.001).CONCLUSION:The overall prevalence of H.pylori infection in the general population has fallen substantially in the Czech Republic over the past 10 years. | Jan Bure Marcela Kopáová Ilona Koupil Bohumil Seifert Miluka kodová Fendrichová Jana pirková Viktor Voíek Stanislav Rejchrt TomáDouda Norbert Král Ilja Tachecí | 2012 | World Journal of Gastroenterology2012，18，32： | 8 |
| 11 | Phenotypic differences between coryneform bacteria isolated from seminal fluid of healthy men and men with chronic prostatitis syndrome显示文摘我们比较了与长期的前列腺炎症候群(每秒字符数) 联系的棒状细菌细菌的潜在的 phenotypic 性质,例如溶解酵素(SIL ) 的能分泌的禁止者和血小板 microbicidal 蛋白质(SIPMP ) 的能分泌的禁止者。一个总数 110 临床棒状细菌孤立与每秒字符数从健康的人和人的精液孤立的细菌被测试。SIPMP 生产被禁止血小板 microbicidal 测试对杆菌 subtilis 的蛋白质(PMP ) bioactivity,并且被表示为 PMP 的抑制的百分比杀菌活动。SIL 生产被对小球菌 lysodeikticus 禁止溶解酵素活动测试并且每使失去活性的溶解酵素的毫升在 microgram 被表示。每秒字符数紧张(58.7% 对 19.2 %) 的一个显著地更高的比例与非每秒字符数紧张相比是 SIPMP 积极的(P < 0.01 ) 。测试的 CPS 紧张, 77.8% 与 34% 非每秒字符数相比是 SIL 积极的孤立(P < 0.05 ) 。这些结果建议例如,每秒字符数的诊断不应该完全依靠古典参数鉴定并且微生物,而是这些参数的功能的意义数必须被估计,可能由不同细菌的 substrains 的集中,有病原的性质的机会主义的微生物的察觉,例如到 cationic 抗菌剂的显著抵抗,禁止抗菌剂的肽,或能力招待防卫因素。 | Iuri B Ivanov Viktor A Gritsenko Michael D Kuzmin | 2009 | Asian Journal of Andrology2009，11，4： | 6 |
| 12 | Passive vectoring of entomopathogenic fungus Beauveria bassiana among the wax moth Galleria mellonella larvae by the ectoparasitoid Habrobracon hebetor females显示文摘ectoparasitoid Habrobracon hebetor 攻击和 envenomate 的女性众多的主人个人在 oviposition 期间。entomopathogenic 真菌 Beauveria bassiana 的 vectoring 在实验室条件下面在由在蜡蛾幼虫街郎 mellonella 之中的 ectoparasitoid 女性的粘附阶段期间被探索。Vectoring 从感染的 parasitoids 两个都发生了到蜡蛾幼虫并且从由 parasitoids 感染了到健康的蜡蛾幼虫。在两个盒子中的 vectoring 的功效是剂量依赖者。Parasitoid 女性是不能的在迷宫测试认出感染的幼虫。另外, H 的存在。(1.5-13 褶层) hebetor 女性显著地在 G 的簇增加了 mycoses 水平。mellonella,与感染真菌的 conidia 的 40% 幼虫。由 H 的 Envenomation。hebetor 由 4.4 褶层在蜡蛾幼虫的表皮上增加了 conidia 萌芽。提高的萌芽率(2 褶层) 与健康幼虫的相比在 envenomated 幼虫的 nhexane epicuticular 摘录被登记。envenomation 和 mycoses 提高了 phenoloxidase (PO ) 在 G 的覆盖物的活动。mellonella 并且相反,减少了在 hemolymphs 的封装率。我们假设在覆盖物性质和细胞的免疫的抑制的变化向 entomopathogenic 真菌的最高的感染功效提供 H。hebetor。 | Vadim Yu. Kryukov Natalia A. Kryukova Maksim V. Tyurin Olga N. Yaroslavtseva Viktor V. Glupov | 2018 | Insect Science2018，25，4： | 6 |
| 13 | Repeated cupping manipulation temporary decreases natural killer lymphocyte frequency, activity and cytotoxicity显示文摘OBJECTIVE: Elevated natural killer lymphocyte cytotoxicity(NKc) has been linked with reproductive problems in women. Here we evaluate the potential benefit of cupping therapy(CT) in reproductionrelated immune responses.METHODS: This was a pilot clinical study. Participants were he althy fe male volunteers(n = 23) with elevated NKc, and received repeated CT 3 times over 5 d(inner pressure 40–50 kPa, 40 min; 12–1 5 cups). Lymphocyte subsets, NKc and NK lymphocyte activity(NKa) were measured in blood on day 0(initial levels, before the first treatment) and days 3, 10 and 17 after the last CT treatment, using the K562-stimulated CD69 expression assay.RESULTS: As a result of CT manipulations NKa was reduced on days 3 and 10, and NK percentage was reduced on day 10. NKc was most sensitive to CT treatment, resulting in their decreased counts at 3, 10 and 17 d post CT. CT treatment decreased NKc in the majority of individuals(87%), but the magnitude of the effect was variable. Out of 23 subjects 9(39.1%) had a 2–3 fold decrease of NKc on days 3, 10 and 17; 11(47.8%) started to show a decrease in NKc later, or more quickly returned to base levels; and only 3(13%) subjects displayed no effect of CT on NKc. Expectedly, no changes in T-cell subsets(CD3CD4, CD3CD8, HLADR, CD158a) were observed after CT.CONCLUSION: CT decreased NK cell numbers, their activity and cytotoxicity. Low cost, safety, noninvasive nature and ease of administration make CT a promising approach for NKc down-regulation. | Boris V.Dons' koi Viktor P.C hernyshov Dariia V.Osypchuk Sergiy M.Baksheev | 2016 | Journal of Integrative Medicine2016，14，3： | 6 |
| 14 | 高吸水聚合物(SAP):新型多功能混凝土外加剂 | Viktor Mechtcherine Lukasz Dudziak Arnd-Eike Brüdern Simone Hempel Christof Schrfl 俞琳 | 2012 | 商品混凝土2012，0，5： | 6 |
| 15 | Diagnosis of focal liver lesions with deep learning-based multichannel analysis of hepatocyte-specific contrast-enhanced magnetic resonance imaging显示文摘BACKGROUND The nature of input data is an essential factor when training neural networks.Research concerning magnetic resonance imaging(MRI)-based diagnosis of liver tumors using deep learning has been rapidly advancing.Still,evidence to support the utilization of multi-dimensional and multi-parametric image data is lacking.Due to higher information content,three-dimensional input should presumably result in higher classification precision.Also,the differentiation between focal liver lesions(FLLs)can only be plausible with simultaneous analysis of multisequence MRI images.AIM To compare diagnostic efficiency of two-dimensional(2D)and three-dimensional(3D)-densely connected convolutional neural networks(DenseNet)for FLLs on multi-sequence MRI.METHODS We retrospectively collected T2-weighted,gadoxetate disodium-enhanced arterial phase,portal venous phase,and hepatobiliary phase MRI scans from patients with focal nodular hyperplasia(FNH),hepatocellular carcinomas(HCC)or liver metastases(MET).Our search identified 71 FNH,69 HCC and 76 MET.After volume registration,the same three most representative axial slices from all sequences were combined into four-channel images to train the 2D-DenseNet264 network.Identical bounding boxes were selected on all scans and stacked into 4D volumes to train the 3D-DenseNet264 model.The test set consisted of 10-10-10 tumors.The performance of the models was compared using area under the receiver operating characteristic curve(AUROC),specificity,sensitivity,positive predictive values(PPV),negative predictive values(NPV),and f1 scores.RESULTS The average AUC value of the 2D model(0.98)was slightly higher than that of the 3D model(0.94).Mean PPV,sensitivity,NPV,specificity and f1 scores(0.94,0.93,0.97,0.97,and 0.93)of the 2D model were also superior to metrics of the 3D model(0.84,0.83,0.92,0.92,and 0.83).The classification metrics of FNH were 0.91,1.00,1.00,0.95,and 0.95 using the 2D and 0.90,0.90,0.95,0.95,and 0.90 using the 3D models.The 2D and 3D networks'performance in the diagnosis of HCC were 1.00,0.80,0.91,1.00,and 0.89 and 0.88,0.70,0.86,0.95,and 0.78,respectively;while the evaluation of MET lesions resulted in 0.91,1.00,1.00,0.95,and 0.95 and 0.75,0.90,0.94,0.85,and 0.82 using the 2D and 3D networks,respectively.CONCLUSION Both 2D and 3D-DenseNets can differentiate FNH,HCC and MET with good accuracy when trained on hepatocyte-specific contrast-enhanced multi-sequence MRI volumes. | Róbert Stollmayer Bettina K Budai Ambrus Tóth IldikóKalina Erika Hartmann Péter Szoldán Viktor Bérczi Pál Maurovich-Horvat Pál N Kaposi | 2021 | World Journal of Gastroenterology2021，27，35： | 6 |
| 16 | Acute liver injury induced by weight-loss herbal supplements显示文摘We report three cases of patients with acute liver injury induced by weight-loss herbal supplements. One patient took Hydroxycut while the other two took Herbalife supplements. Liver biopsies for all patients dem onstrated f indings consistent with drug-induced acute liver injury. To our knowledge, we are the fi rst instit ute to report acute liver injury from both of these two typ es of weight-loss herbal supplements together as a case series. The series emphasizes the importance of taking a cautious approach when consuming herbal supp lements for the purpose of weight loss. | Gary C Chen Vivek S Ramanathan David Law Pauline Funchain George C Chen Samuel French Boris Shlopov Viktor Eysselein David Chung Sonya Reicher Binh V Pham | 2010 | World Journal of Hepatology2010，2，11： | 5 |
| 17 | Ab initio theory of the negatively charged boron vacancy qubit in hexagonal boron nitride显示文摘Highly correlated orbitals coupled with phonons in two-dimension are identified for paramagnetic and optically active boron vacancy in hexagonal boron nitride by first principles methods which are responsible for recently observed optically detected magnetic resonance signal.Here,we report ab initio analysis of the correlated electronic structure of this center by density matrix renormalization group and Kohn-Sham density functional theory methods.By establishing the nature of the bright and dark states as well as the position of the energy levels,we provide a complete description of the magneto-optical properties and corresponding radiative and non-radiative routes which are responsible for the optical spin polarization and spin dependent luminescence of the defect.Our findings pave the way toward advancing the identification and characterization of room temperature quantum bits in two-dimensional solids. | Viktor Ivády Gergely Barcza GergőThiering Song Li Hanen Hamdi Jyh-Pin Chou Örs Legeza Adam Gali | 2020 | npj Computational Materials2020，，1： | 4 |
| 18 | Quantitative Changes in Microtubule Distribution Correlate with Guard Cell Function in Arabidopsis显示文摘放射状地安排的外皮的微导管是警卫房间的一个突出的特征。我们观察了与共焦的显微镜学表示 GFP 导管素(GFP-TUA6 ) 的警卫房间并且当时,在微导管的外观发现了可认识的变化开或靠近的 stomata (Eisinger 等, 2012 ) 。在现在的学习,荧光分发的分析作为 stomata 在警卫房间以内在微导管捆的山峰紧张显示出戏剧的增加开。这增加随能被归因于 polymerized 导管素的全部的荧光的增加被相关。邻近的人行道房间没在山峰紧张或综合荧光看类似的变化有气孔的孔什么时候变化了。标注 RFP 的结束绑定蛋白质 1 的成像(EB1 ) 和在一样的房间表示的标注 YFP 的导管素表明有种结束的微导管的数字仍然保持不变,尽管 polymerized 导管素的全部的数量是更高的在比在关上的警卫房间开。一起拿,这些结果显示在微导管的变化穿被相关与并且为正常要求警卫房间功能被变化在聚类的微导管或捆绑描绘的组织。 | William R. Eisinger Viktor Kirik Charlotte Lewis David W. Ehrhardt Winslow R. Briggs | 2012 | Molecular Plant2012，5，3： | 4 |
| 19 | Urban Physics: Effect of the micro-climate on comfort, health and energy demand显示文摘 | Peter Moonen Thijs Defraeye Viktor Dorer Bert Blocken Jan Carmeliet | 2012 | Frontiers of Architectural Research2012，1，3： | 4 |
| 20 | First principles calculation of spin-related quantities for point defect qubit research显示文摘Point defect research in semiconductors has gained remarkable new momentum due to the identification of special point defects that can implement qubits and single photon emitters with unique characteristics.Indeed,these implementations are among the few alternatives for quantum technologies that may operate even at room temperature,and therefore discoveries and characterization of novel point defects may highly facilitate future solid state quantum technologies.First principles calculations play an important role in point defect research,since they provide a direct,extended insight into the formation of the defect states.In the last decades,considerable efforts have been made to calculate spin-dependent properties of point defects from first principles.The developed methods have already demonstrated their essential role in quantitative understanding of the physics and application of point defect qubits.Here,we review and discuss accuracy aspects of these novel ab initio methods and report on their most relevant applications for existing point defect qubits in semiconductors.We pay attention to the advantages and limitations of the methodological solutions and highlight additional developments that are expected in the near future.Moreover,we discuss the opportunity of a systematic search for potential point defect qubits,as well as the possible development of predictive spin dynamic simulations facilitated by ab initio calculations of spin-dependent quantities. | Viktor Ivády Igor A.Abrikosov Adam Gali | 2018 | npj Computational Materials2018，，1： | 4 |
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