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  1. Article: Isotopic composition of the oxygen in silicate rocks.

    BAERTSCHI, P

    Nature

    2004  Volume 166, Issue 4211, Page(s) 112–113

    MeSH term(s) Geological Phenomena ; Geology ; Isotopes ; Oxygen ; Silicates ; Silicon Compounds
    Chemical Substances Isotopes ; Silicates ; Silicon Compounds ; Oxygen (S88TT14065)
    Language English
    Publishing date 2004-08-03
    Publishing country England
    Document type Journal Article
    ZDB-ID 120714-3
    ISSN 1476-4687 ; 0028-0836
    ISSN (online) 1476-4687
    ISSN 0028-0836
    DOI 10.1038/166112a0
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  2. Article: Zur Frage der Herkunft des Sauerstoffs bei der Oxydation von Wasserstoffperoxyd surch Permanganat.

    BAERTSCHI, P

    Experientia

    2003  Volume 7, Issue 6, Page(s) 215–216

    Title translation On the origin of the oxygen evolved in permanganate oxidation of hydrogen peroxide.
    MeSH term(s) Hydrogen Peroxide ; Manganese Compounds ; Oxidation-Reduction ; Oxides ; Oxygen ; Potassium Permanganate
    Chemical Substances Manganese Compounds ; Oxides ; Potassium Permanganate (00OT1QX5U4) ; permanganic acid (14333-13-2) ; Hydrogen Peroxide (BBX060AN9V) ; Oxygen (S88TT14065)
    Language Undetermined
    Publishing date 2003-12-15
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 1972-0
    ISSN 0014-4754
    ISSN 0014-4754
    DOI 10.1007/bf02138996
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  3. Article ; Online: Absceso cerebral por Nocardia en paciente diagnosticado de proteinosis alveolar.

    Godoy Hurtado, A / Liébana Martos, C / Bartschi, P / Al-Ghanem, R / Galicia Bulnes, J M / Saldívar Gómez, J

    Revista espanola de quimioterapia : publicacion oficial de la Sociedad Espanola de Quimioterapia

    2020  Volume 34, Issue 1, Page(s) 61–63

    Title translation Brain abscess caused by Nocardia in patient with alveolar proteinosis.
    MeSH term(s) Brain Abscess/diagnostic imaging ; Brain Abscess/drug therapy ; Humans ; Nocardia ; Nocardia Infections/drug therapy ; Pulmonary Alveolar Proteinosis
    Language Spanish
    Publishing date 2020-11-23
    Publishing country Spain
    Document type Letter
    ZDB-ID 1018135-0
    ISSN 1988-9518 ; 0214-3429
    ISSN (online) 1988-9518
    ISSN 0214-3429
    DOI 10.37201/req/069.2020
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  4. Article: Three-Dimensional Reconstruction of the Sphenoid Sinus Anatomy for Presurgical Planning with Free OSIRIX Software.

    Abarca-Olivas, Javier / Bärtschi, Patrick / Monjas-Cánovas, Irene / González-López, Pablo / García-Garrigós, Elena / Sánchez-Payá, Jose / Moreno-López, Pedro

    Journal of neurological surgery. Part B, Skull base

    2021  Volume 83, Issue Suppl 2, Page(s) e244–e252

    Abstract: ... ...

    Abstract Background
    Language English
    Publishing date 2021-03-12
    Publishing country Germany
    Document type Journal Article
    ZDB-ID 2654269-9
    ISSN 2193-634X ; 2193-6331
    ISSN (online) 2193-634X
    ISSN 2193-6331
    DOI 10.1055/s-0041-1725169
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  5. Article: Three-Dimensional Reconstruction of the Sphenoid Sinus Anatomy for Presurgical Planning with Free OSIRIX Software

    Abarca-Olivas, Javier / Bärtschi, Patrick / Monjas-Cánovas, Irene / González-López, Pablo / García-Garrigós, Elena / Sánchez-Payá, Jose / Moreno-López, Pedro

    Journal of Neurological Surgery Part B: Skull Base

    2021  Volume 83, Issue S 02, Page(s) e244–e252

    Abstract: Background: A preoperative three-dimensional (3D) surgical field understanding remains a key factor to achieve safer endonasal transsphenoidal endoscopic approaches (ETSE). The aim of this article is to describe how we can get a reliable 3D sphenoidal ... ...

    Abstract Background: A preoperative three-dimensional (3D) surgical field understanding remains a key factor to achieve safer endonasal transsphenoidal endoscopic approaches (ETSE). The aim of this article is to describe how we can get a reliable 3D sphenoidal anatomical reconstruction for surgical planning by using a user-friendly, accurate, and free image software.
    Methods: Free computer software (OSIRIX Medical Imaging Software) was used to create in a personal computer a three-dimensional (3D) reconstruction of the sphenoid sinus (SS) based on head computed tomography angiographies (CTAs) from a series of 67 patients who were operated for sellar tumors during a 4-year period (March 2016 to March 2020). The aim of the 3D reconstruction with OSIRIX was to reveal preoperatively the most important intrasphenoidal structures seen from the endonasal point of view.
    Results: The intraoperative visible sphenoidal structures were previously recognized in the virtual 3D reconstructed image with 100% of specificity (SP) and positive predictive value. The OSIRIX view by using region of interest points allowed us to see preoperatively the internal carotid artery parasellar course even in those cases in which it was hidden by bone or tumor. Moreover, the 3D reconstruction was able to provide a clear differentiation between the tumor and the pituitary gland when both structures were in contact with the sellar floor.
    Conclusion: Our experience with the OSIRIX software from CTA as preoperative planning for endonasal pituitary surgery was valuable, because it gave us access in simple way to a free and reliable 3D image of the SS.
    Keywords sphenoid sinus ; pituitary surgery ; endoscopic transsphenoidal approach ; 3D reconstruction
    Language English
    Publishing date 2021-03-12
    Publisher Georg Thieme Verlag KG
    Publishing place Stuttgart ; New York
    Document type Article
    ZDB-ID 2654269-9
    ISSN 2193-634X ; 2193-6331
    ISSN (online) 2193-634X
    ISSN 2193-6331
    DOI 10.1055/s-0041-1725169
    Database Thieme publisher's database

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  6. Article ; Online: A Very Rare Case of Right Insular Lobe Langerhans Cell Histiocytosis (CD1a

    Bärtschi, Patrick / Luna, Enrique / González-López, Pablo / Abarca, Javier / Herrero, Joaquín / Costa, Estela / Paya, Artemio / Sales, Juan / Moreno, Pedro

    World neurosurgery

    2018  Volume 121, Page(s) 4–11

    Abstract: Background: Langerhans cell histiocytosis (LCH) is a multisystemic dendritic cell proliferation that is relatively uncommon in adults. Central nervous system LCH outside the pituitary gland is even more uncommon.: Case description: We report the case ...

    Abstract Background: Langerhans cell histiocytosis (LCH) is a multisystemic dendritic cell proliferation that is relatively uncommon in adults. Central nervous system LCH outside the pituitary gland is even more uncommon.
    Case description: We report the case of a 42-year-old man who had complained of right-side hemicranial pain and left arm minor paresis. The symptoms were due to a right insular lobe heterogeneous-enhancing lesion associated with extensive vasogenic edema. The first diagnostic impression suggested glioblastoma multiforme or localized metastasis. The thoracic, abdominal, pelvic computed tomography scan only detected small upper lung inactive nodules suggesting silent focal LCH. A very hard lesion was almost completely removed through a pterional craniotomy approach, with no fluorescence after aminolevulinic acid infusion. The intraoperative biopsy findings ruled out glioma but could not confirm lymphoma. The definitive cerebral biopsy findings showed lymphocytes and histiocytes (CD1a
    Conclusions: The present case is so rare it should not be used as a guide. We probably will never see a single intraparenchymal supratentorial central nervous system LCH lesion. However, we hope our report will help colleagues in the future with the thought process.
    MeSH term(s) Adult ; Antigens, CD1/metabolism ; Brain Neoplasms/diagnostic imaging ; Brain Neoplasms/physiopathology ; Brain Neoplasms/secondary ; Cerebral Cortex/diagnostic imaging ; Cerebral Cortex/pathology ; Glioblastoma/diagnostic imaging ; Glioblastoma/secondary ; Glioblastoma/surgery ; Histiocytosis, Langerhans-Cell/complications ; Histiocytosis, Langerhans-Cell/diagnostic imaging ; Histiocytosis, Langerhans-Cell/pathology ; Histiocytosis, Langerhans-Cell/surgery ; Humans ; Lung/diagnostic imaging ; Lung Neoplasms/diagnostic imaging ; Lung Neoplasms/physiopathology ; Lung Neoplasms/surgery ; Magnetic Resonance Imaging ; Male ; Tomography Scanners, X-Ray Computed
    Chemical Substances Antigens, CD1 ; CD1a antigen
    Language English
    Publishing date 2018-09-24
    Publishing country United States
    Document type Case Reports ; Journal Article
    ZDB-ID 2534351-8
    ISSN 1878-8769 ; 1878-8750
    ISSN (online) 1878-8769
    ISSN 1878-8750
    DOI 10.1016/j.wneu.2018.09.093
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    Zs.A 1159: Show issues Location:
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  7. Article: Fractionation of isotopes by distillation of some organic substances.

    BAERTSCHI, P / KUHN, W / KUHN, H

    Nature

    2003  Volume 171, Issue 4362, Page(s) 1018–1020

    MeSH term(s) Benzene ; Carbon ; Carbon Radioisotopes ; Carbon Tetrachloride ; Chemical Fractionation ; Chlorine ; Chloroform ; Distillation ; Ethanol ; Isotopes ; Methanol ; Oxygen ; Oxygen Radioisotopes ; Radioisotopes
    Chemical Substances Carbon Radioisotopes ; Isotopes ; Oxygen Radioisotopes ; Radioisotopes ; Ethanol (3K9958V90M) ; Chlorine (4R7X1O2820) ; Carbon (7440-44-0) ; Chloroform (7V31YC746X) ; Carbon Tetrachloride (CL2T97X0V0) ; Benzene (J64922108F) ; Oxygen (S88TT14065) ; Methanol (Y4S76JWI15)
    Language English
    Publishing date 2003-02-25
    Publishing country England
    Document type Journal Article
    ZDB-ID 120714-3
    ISSN 1476-4687 ; 0028-0836
    ISSN (online) 1476-4687
    ISSN 0028-0836
    DOI 10.1038/1711018a0
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  8. Article: ISOTOPIEEFFEKTE UND IHRE BEDEUTUNG.

    BAERTSCHI, P

    Zeitschrift fur naturwissenschaftlichmedizinische Grundlagenforschung

    1964  Volume 2, Page(s) 22–42

    Title translation ISOTOPE EFFECTS AND THEIR SIGNIFICANCE.
    MeSH term(s) Biochemical Phenomena ; Biochemistry ; Chemical Phenomena ; Chemistry ; Deuterium ; Isotopes ; Radioisotopes ; Research
    Chemical Substances Isotopes ; Radioisotopes ; Deuterium (AR09D82C7G)
    Language German
    Publishing date 1964-06
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 202892-x
    ISSN 0514-6461
    ISSN 0514-6461
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  9. Book: Uranium migration in crystalline rock

    Baertschi, P / Alexander, W. R / Dollinger, H

    capillary solution transport in the granite of the Grimsel test site, Switzerland ; Grimsel test site

    (Technischer Bericht / NAGRA ; 90,15)

    1991  

    Author's details P. Baertschi; W. R. Alexander; H. Dollinger
    Series title Technischer Bericht / NAGRA ; 90,15
    Language English
    Size IX, 65 S., Ill., graph. Darst.
    Publisher NAGRA
    Publishing place Baden/Schweiz
    Document type Book
    Database Library catalogue of the German National Library of Science and Technology (TIB), Hannover

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  10. Book: Urangehalte von Oberflächen-, Quell- und Grundwässern der Schweiz

    Baertschi, Peter / Keil, Rolf

    (Technischer Bericht / Nagra ; 91,26)

    1992  

    Author's details P. Baertschi; R. Keil. Nagra, Nationale Genossenschaft für die Lagerung Radioaktiver Abfälle
    Series title Technischer Bericht / Nagra ; 91,26
    Language German
    Size 51 S, graph. Darst., Kt, 30 cm
    Publisher Nagra
    Publishing place Wettingen
    Document type Book
    Note Literaturverz. S. 48 - 51. - Auch als: Beiträge zur Geologie der Schweiz, kleinere Mitteilungen, Lfg. 94
    Database Library catalogue of the German National Library of Science and Technology (TIB), Hannover

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