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  1. Article: Insects in Southern Rhodesian tobacco culture. V. Insects occurring in the fields.

    BUNZLI, G H / BUTTIKER, W W

    Acta tropica

    2003  Volume 15, Issue 4, Page(s) 357–366

    MeSH term(s) Animals ; Insecta ; Nicotiana
    Language English
    Publishing date 2003-09-16
    Publishing country Netherlands
    Document type Journal Article
    ZDB-ID 210415-5
    ISSN 1873-6254 ; 0001-706X
    ISSN (online) 1873-6254
    ISSN 0001-706X
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  2. Article ; Online: Biomedical Perspectives of Acute and Chronic Neurological and Neuropsychiatric Sequelae of COVID-19.

    Stefano, George B / Büttiker, Pascal / Weissenberger, Simon / Ptacek, Radek / Wang, Fuzhou / Esch, Tobias / Bilfinger, Thomas V / Raboch, Jiri / Kream, Richard M

    Current neuropharmacology

    2021  Volume 20, Issue 6, Page(s) 1229–1240

    Abstract: The incidence of infections from severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), the etiologic agent for coronavirus disease 2019 (COVID-19), has dramatically escalated following the initial outbreak in China, in late 2019, resulting in a ... ...

    Abstract The incidence of infections from severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), the etiologic agent for coronavirus disease 2019 (COVID-19), has dramatically escalated following the initial outbreak in China, in late 2019, resulting in a global pandemic with millions of deaths. Although the majority of infected patients survive, and the rapid advent and deployment of vaccines have afforded increased immunity against SARS-CoV-2, long-term sequelae of SARS-CoV-2 infection have become increasingly recognized. These include, but are not limited to, chronic pulmonary disease, cardiovascular disorders, and proinflammatory-associated neurological dysfunction that may lead to psychological and neurocognitive impairment. A major component of cognitive dysfunction is operationally categorized as "brain fog" which comprises difficulty concentrating, forgetfulness, confusion, depression, and fatigue. Multiple parameters associated with long-term neuropsychiatric sequelae of SARS-CoV-2 infection have been detailed in clinical studies. Empirically elucidated mechanisms associated with the neuropsychiatric manifestations of COVID-19 are by nature complex, but broad-based working models have focused on mitochondrial dysregulation, leading to systemic reductions of metabolic activity and cellular bioenergetics within the CNS structures. Multiple factors underlying the expression of brain fog may facilitate future pathogenic insults, leading to repetitive cycles of viral and bacterial propagation. Interestingly, diverse neurocognitive sequelae associated with COVID-19 are not dissimilar from those observed in other historical pandemics, thereby providing a broad and integrative perspective on potential common mechanisms of CNS dysfunction subsequent to viral infection. Poor mental health status may be reciprocally linked to compromised immune processes and enhanced susceptibility to infection by diverse pathogens. By extrapolation, we contend that COVID-19 may potentiate the severity of neurological/neurocognitive deficits in patients afflicted by well-studied neurodegenerative disorders, such as Alzheimer's disease and Parkinson's disease. Accordingly, the prevention, diagnosis, and management of sustained neuropsychiatric manifestations of COVID-19 are pivotal health care directives and provide a compelling rationale for careful monitoring of infected patients, as early mitigation efforts may reduce short- and long-term complications.
    MeSH term(s) COVID-19/complications ; Central Nervous System ; Disease Progression ; Humans ; Neurodegenerative Diseases ; Pandemics ; SARS-CoV-2
    Language English
    Publishing date 2021-12-07
    Publishing country United Arab Emirates
    Document type Journal Article
    ZDB-ID 2192352-8
    ISSN 1875-6190 ; 1570-159X
    ISSN (online) 1875-6190
    ISSN 1570-159X
    DOI 10.2174/1570159X20666211223130228
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  3. Article: Edge-State Physics Without Magnetic Fields

    Büttiker, Markus

    Science. 2009 July 17, v. 325, no. 5938

    2009  

    Language English
    Dates of publication 2009-0717
    Size p. 278-279.
    Publishing place American Association for the Advancement of Science
    Document type Article
    ZDB-ID 128410-1
    ISSN 1095-9203 ; 0036-8075
    ISSN (online) 1095-9203
    ISSN 0036-8075
    Database NAL-Catalogue (AGRICOLA)

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  4. Article: Mesoscopic versus macroscopic division of current fluctuations.

    Rychkov, V / Büttiker, M

    Physical review letters

    2006  Volume 96, Issue 16, Page(s) 166806

    Abstract: We investigate the current shot noise at a three terminal node in which one of the branches contains a noise generating source and the correlations are measured between the currents flowing through the other two branches. Interestingly, if the node is ... ...

    Abstract We investigate the current shot noise at a three terminal node in which one of the branches contains a noise generating source and the correlations are measured between the currents flowing through the other two branches. Interestingly, if the node is macroscopic, the current correlations are positive, whereas for a quantum coherent mesoscopic node antibunching of electrons leads to negative correlations. We present specific predictions which permit the experimental investigation of the crossover from the quantum mechanical noise division to the macroscopic noise division.
    Language English
    Publishing date 2006-04-28
    Publishing country United States
    Document type Journal Article
    ZDB-ID 208853-8
    ISSN 1079-7114 ; 0031-9007
    ISSN (online) 1079-7114
    ISSN 0031-9007
    DOI 10.1103/PhysRevLett.96.166806
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  5. Article: Two-particle Aharonov-Bohm effect and entanglement in the electronic Hanbury Brown-Twiss setup.

    Samuelsson, P / Sukhorukov, E V / Büttiker, M

    Physical review letters

    2004  Volume 92, Issue 2, Page(s) 26805

    Abstract: We analyze a Hanbury Brown-Twiss geometry in which particles are injected from two independent sources into a mesoscopic conductor in the quantum Hall regime. All partial waves end in different reservoirs without generating any single-particle ... ...

    Abstract We analyze a Hanbury Brown-Twiss geometry in which particles are injected from two independent sources into a mesoscopic conductor in the quantum Hall regime. All partial waves end in different reservoirs without generating any single-particle interference; in particular, there is no single-particle Aharonov-Bohm effect. However, exchange effects lead to two-particle Aharonov-Bohm oscillations in the zero-frequency current cross correlations. We demonstrate that this is related to two-particle orbital entanglement, detected via violation of a Bell inequality. The transport is along edge states and only adiabatic quantum point contacts and normal reservoirs are employed.
    Language English
    Publishing date 2004-01-16
    Publishing country United States
    Document type Journal Article
    ZDB-ID 208853-8
    ISSN 1079-7114 ; 0031-9007
    ISSN (online) 1079-7114
    ISSN 0031-9007
    DOI 10.1103/PhysRevLett.92.026805
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  6. Article: Orbital entanglement and violation of Bell inequalities in mesoscopic conductors.

    Samuelsson, P / Sukhorukov, E V / Büttiker, M

    Physical review letters

    2003  Volume 91, Issue 15, Page(s) 157002

    Abstract: We propose a spin-independent scheme to generate and detect two-particle entanglement in a mesoscopic normal-superconductor system. A superconductor, weakly coupled to the normal conductor, generates an orbitally entangled state by injecting pairs of ... ...

    Abstract We propose a spin-independent scheme to generate and detect two-particle entanglement in a mesoscopic normal-superconductor system. A superconductor, weakly coupled to the normal conductor, generates an orbitally entangled state by injecting pairs of electrons into different leads of the normal conductor. The entanglement is detected via violation of a Bell inequality, formulated in terms of zero-frequency current cross correlators. It is shown that the Bell inequality can be violated for arbitrary strong dephasing in the normal conductor.
    Language English
    Publishing date 2003-10-10
    Publishing country United States
    Document type Journal Article
    ZDB-ID 208853-8
    ISSN 1079-7114 ; 0031-9007
    ISSN (online) 1079-7114
    ISSN 0031-9007
    DOI 10.1103/PhysRevLett.91.157002
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  7. Article: Partial densities of states, scattering matrices, and Green's functions.

    Gasparian / Christen / Büttiker

    Physical review. A, Atomic, molecular, and optical physics

    1996  Volume 54, Issue 5, Page(s) 4022–4031

    Language English
    Publishing date 1996-11
    Publishing country United States
    Document type Journal Article
    ZDB-ID 209769-2
    ISSN 1050-2947 ; 2469-9926 ; 0556-2791
    ISSN 1050-2947 ; 2469-9926 ; 0556-2791
    DOI 10.1103/physreva.54.4022
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  8. Article: Imperforate anus in Feingold syndrome.

    Büttiker, V / Wojtulewicz, J / Wilson, M

    American journal of medical genetics

    2000  Volume 92, Issue 3, Page(s) 166–169

    Abstract: A father and daughter had the characteristic findings of Feingold syndrome including microcephaly, short palpebral fissures, brachydactyly with clinodactyly of fifth fingers, and bilateral syndactyly of second to third and fourth to fifth toes. The ... ...

    Abstract A father and daughter had the characteristic findings of Feingold syndrome including microcephaly, short palpebral fissures, brachydactyly with clinodactyly of fifth fingers, and bilateral syndactyly of second to third and fourth to fifth toes. The infant presented with long-gap esophageal atresia without fistula (type A). Her father, who had short stature and learning disabilities, had congenital imperforate anus with a recto-vesical fistula. This is the first report of distal intestinal atresia in Feingold syndrome.
    MeSH term(s) Abnormalities, Multiple/genetics ; Anus, Imperforate/genetics ; Duodenal Diseases/congenital ; Duodenal Diseases/genetics ; Esophageal Atresia/genetics ; Female ; Fingers/abnormalities ; Humans ; Infant, Newborn ; Karyotyping ; Male ; Microcephaly/genetics ; Pedigree ; Rectal Fistula/congenital ; Rectal Fistula/genetics ; Syndactyly/genetics ; Syndrome ; Toes/abnormalities
    Language English
    Publishing date 2000-05-29
    Publishing country United States
    Document type Case Reports ; Journal Article
    ZDB-ID 133387-2
    ISSN 0148-7299
    ISSN 0148-7299
    DOI 10.1002/(sici)1096-8628(20000529)92:3<166::aid-ajmg2>3.0.co;2-#
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  9. Article: Chylothorax in children: guidelines for diagnosis and management.

    Büttiker, V / Fanconi, S / Burger, R

    Chest

    1999  Volume 116, Issue 3, Page(s) 682–687

    Abstract: Study objective: To establish guidelines for the diagnosis and management of chylothorax in children.: Design: Retrospective study.: Patients: Fifty-one patients with a diagnosis of chylothorax. Twelve patients were excluded because of incomplete ... ...

    Abstract Study objective: To establish guidelines for the diagnosis and management of chylothorax in children.
    Design: Retrospective study.
    Patients: Fifty-one patients with a diagnosis of chylothorax. Twelve patients were excluded because of incomplete data or incorrect diagnosis. The following parameters were analyzed: triglyceride level, total cell number, and lymphocyte percentage; amount of pleural effusion on day of diagnosis, day 5, and day 14; and total time of pleural effusion. Prospectively, the same parameters were analyzed in a control group of 10 patients with pleural drainage.
    Intervention: Patients with chylothorax were treated primarily with fat-free oral nutrition; if chyle did not stop, total parenteral nutrition with total enteric rest was started. If conservative therapy was not successful, pleurodesis was performed.
    Results: In children with chylothorax triglyceride, triglyceride content ranged from 0.56 to 26.6 mmol/L; all values except one were > 1.1 mmol/L. In 36 of 39 patients (92%), the cell count was > 1,000 cells/microL. In 33 of 39 patients (85%), lymphocytes were > 90%. In patients without chylothorax triglyceride, triglyceride levels ranged from 0.1 to 0.71 mmol/L (median, 0.38 mmol/L) and cell count was from 20 to 1400 cells/microL (median, 322 cells/microL), with a maximum of 60% lymphocytes. With fat-free nutrition, chyle disappeared in 29 of 39 patients. Five patients died, and five required pleurodesis.
    Conclusions: Pleural effusion in children is chyle when it contains > 1.1 mmol/L triglycerides (with oral fat intake) and has a total cell count > or 1,000 cells/microL, with a lymphocyte fraction > 80%. Chylous effusions usually last long; however, after 6 weeks, the majority of the effusions (29 of 39 patients) had ceased. Late surgical interventions reduce the number of thoracotomies substantially, but can lead to very long hospitalization times. Early surgical interventions (after < 3 weeks) lead to a high number of thoracotomies, but certainly reduce hospitalization time.
    MeSH term(s) Cell Count ; Child ; Child, Preschool ; Chylothorax/diagnosis ; Chylothorax/etiology ; Chylothorax/therapy ; Diagnosis, Differential ; Diet, Fat-Restricted ; Female ; Food, Formulated ; Humans ; Infant ; Infant, Newborn ; Male ; Pleural Effusion/chemistry ; Pleural Effusion/cytology ; Pleural Effusion/diagnosis ; Postoperative Complications ; Retrospective Studies ; Triglycerides/analysis
    Chemical Substances Triglycerides
    Language English
    Publishing date 1999-09
    Publishing country United States
    Document type Journal Article
    ZDB-ID 1032552-9
    ISSN 1931-3543 ; 0012-3692
    ISSN (online) 1931-3543
    ISSN 0012-3692
    DOI 10.1378/chest.116.3.682
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  10. Article: Stochastic path integral formulation of full counting statistics.

    Pilgram, S / Jordan, A N / Sukhorukov, E V / Büttiker, M

    Physical review letters

    2003  Volume 90, Issue 20, Page(s) 206801

    Abstract: We derive a stochastic path integral representation of counting statistics in semiclassical systems. The formalism is introduced on the simple case of a single chaotic cavity with two quantum point contacts, and then further generalized to find the ... ...

    Abstract We derive a stochastic path integral representation of counting statistics in semiclassical systems. The formalism is introduced on the simple case of a single chaotic cavity with two quantum point contacts, and then further generalized to find the propagator for charge distributions with an arbitrary number of counting fields and generalized charges. The counting statistics is given by the saddle-point approximation to the path integral, and fluctuations around the saddle point are suppressed in the semiclassical approximation. We use this approach to derive the current cumulants of a chaotic cavity in the hot-electron regime.
    Language English
    Publishing date 2003-05-23
    Publishing country United States
    Document type Journal Article
    ZDB-ID 208853-8
    ISSN 1079-7114 ; 0031-9007
    ISSN (online) 1079-7114
    ISSN 0031-9007
    DOI 10.1103/PhysRevLett.90.206801
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