LIVIVO - Search results -

Search results

Result 1 - 10 of total 402

Search options

Article ; Online: Surface Modification of Silica with β-Alanine Derivatives for Unique Applications in Liquid Chromatography.

Mallik, Abul K / Montero, Lidia / Rösler, Jonas / Meckelmann, Sven W / Schmitz, Oliver J

ACS applied materials & interfaces

2023 Volume 15, Issue 46, Page(s) 54176–54184

Abstract: Column purchasing cost is an important issue for an analyst to analyze complex sample matrices. Here, we report the development of an amino acid (β-alanine)-derived stationary phase (Sil-Ala-C12) with strategic and effective interaction sites (amide and ... ...

Abstract	Column purchasing cost is an important issue for an analyst to analyze complex sample matrices. Here, we report the development of an amino acid (β-alanine)-derived stationary phase (Sil-Ala-C12) with strategic and effective interaction sites (amide and urea as embedded polar groups with C12 alkyl chain) able to separate various kinds of analytes. Owing to the balanced hydrophobicity and hydrophilicity of the phase, it showed exceptional separation abilities in both reversed-phase high-performance liquid chromatography (RP-HPLC) as a hydrophobic phase and hydrophilic interaction chromatography (HILIC) as a hydrophilic phase. Remarkably, the baseline separation was achieved for the challenging β- and γ-isomers of tocopherol. Usually, three columns such as pentafluorophenyl or C30, C18, and sulfobetaine HILIC are required for the analysis of vitamin E, capsaicinoids, and vitamin C in chili peppers (
MeSH term(s)	Silicon Dioxide/chemistry ; Chromatography, Liquid/methods ; Chromatography, Reverse-Phase/methods ; Amides/chemistry ; beta-Alanine ; Hydrophobic and Hydrophilic Interactions
Chemical Substances	Silicon Dioxide (7631-86-9) ; Amides ; beta-Alanine (11P2JDE17B)
Language	English
Publishing date	2023-11-10
Publishing country	United States
Document type	Journal Article
ISSN	1944-8252
ISSN (online)	1944-8252
DOI	10.1021/acsami.3c11932
Database	MEDical Literature Analysis and Retrieval System OnLINE

Order via subito

This service is chargeable due to the Delivery terms set by subito. Orders including an article and supplementary material will be classified as separate orders. In these cases, fees will be demanded for each order.

Inter-library loan at ZB MED

Your chosen title can be delivered directly to ZB MED Cologne location if you are registered as a user at ZB MED Cologne.

Article ; Online: Erdheim-Chester disease: hairy kidney and coated aorta.

Ritter, Alexander / Meier, Julia / Angst, Florian / Rösler, Wiebke / Seeger, Harald

Kidney international

2023 Volume 103, Issue 2, Page(s) 431

MeSH term(s)	Humans ; Erdheim-Chester Disease/diagnostic imaging ; Erdheim-Chester Disease/genetics ; Kidney/diagnostic imaging ; Tomography, X-Ray Computed ; Aorta
Language	English
Publishing date	2023-01-20
Publishing country	United States
Document type	Case Reports
ZDB-ID	120573-0
ISSN	1523-1755 ; 0085-2538
ISSN (online)	1523-1755
ISSN	0085-2538
DOI	10.1016/j.kint.2022.09.016
Database	MEDical Literature Analysis and Retrieval System OnLINE

In stock of ZB MED Cologne/Königswinter

Zs.A 797: Show issues

Location:
Je nach Verfügbarkeit (siehe Angabe bei Bestand)
bis Jg. 1994: Bestellungen von Artikeln über das Online-Bestellformular
Jg. 1995 - 2021: Lesesall (1.OG)
ab Jg. 2022: Lesesaal (EG)

Order via subito

Details ▾
- See ZB MED holdings
- Order with fees

Article: Solvent design for catalyst recycling of rhodium/amine catalysts via scCO₂ extraction in the reductive hydroformylation of alpha olefins

Rösler, T. / Betting, J. / Püschel, S. / Vorholt, A. J. / Leitner, W.

Green chemistry. 2022 Aug. 30, v. 24, no. 17

2022

Abstract: Efficient transformation protocols to directly convert olefins to alcohols are highly sought after. Ethylene glycol based solvents have proved to support the reductive hydroformylation of linear alpha olefins to alcohols using [Rh(acac)(CO)₂] in ... ...

Abstract	Efficient transformation protocols to directly convert olefins to alcohols are highly sought after. Ethylene glycol based solvents have proved to support the reductive hydroformylation of linear alpha olefins to alcohols using [Rh(acac)(CO)₂] in combination with tertiary amines as catalysts. Incorporation of the amine functionality into the solvent using 2-[2-(dimethylamino)ethoxy]ethanol allowed simplification of the reaction system to three components and a catalytic activity with a TOF of 280 h⁻¹ for the reductive hydroformylation of 1-octene to be achieved. To immobilize the rhodium catalyst in a recycling approach using scCO₂ as the extracting solvent for product alcohols, amine functionalized PEG derivatives have been synthesized as the stationary catalyst phase. Amide condensation of PEG₆₀₀-diacid with trimethyldiaminoethane resulted in a diaminated PEG₆₀₀ in which the amine group is linked via an amide bridge to the PEG₆₀₀ backbone. During nine consecutive runs, in which this PEG₆₀₀-diamine was used as the stationary catalyst phase and product alcohols have been extracted with scCO₂, no loss in activity or selectivity was observed. Leaching of the stationary phase was ≤3 wt% (≤0.5 wt% after the first two runs) of the extracted mass per run and rhodium leaching was determined to be 0.1% of the initial rhodium over all nine runs combined.
Keywords	catalysts ; catalytic activity ; ethanol ; ethylene glycol ; green chemistry ; rhodium ; solvents
Language	English
Dates of publication	2022-0830
Size	p. 6578-6588.
Publishing place	The Royal Society of Chemistry
Document type	Article
ZDB-ID	2006274-6
ISSN	1463-9270 ; 1463-9262
ISSN (online)	1463-9270
ISSN	1463-9262
DOI	10.1039/d2gc01252a
Database	NAL-Catalogue (AGRICOLA)

Order via subito

Article ; Online: Cognitive, Behavioral, and Circadian Rhythm Interventions for Insomnia Alter Emotional Brain Responses.

Leerssen, Jeanne / Aghajani, Moji / Bresser, Tom / Rösler, Lara / Winkler, Anderson M / Foster-Dingley, Jessica C / Van Someren, Eus J W

Biological psychiatry. Cognitive neuroscience and neuroimaging

2023 Volume 9, Issue 1, Page(s) 60–69

Abstract: Background: The highest risk of depression is conveyed by insomnia. This risk can be mitigated by sleep interventions. Understanding brain mechanisms underlying increased emotional stability following insomnia treatment could provide insight relevant to ...

Abstract	Background: The highest risk of depression is conveyed by insomnia. This risk can be mitigated by sleep interventions. Understanding brain mechanisms underlying increased emotional stability following insomnia treatment could provide insight relevant to the prevention of depression. Here, we investigated how different sleep interventions alter emotion-related brain activity in people with insomnia at high risk of developing depression. Methods: Functional magnetic resonance imaging was used to assess how the amygdala response to emotional stimuli (negative facial expression) in 122 people with insomnia disorder differed from 36 control subjects and how the amygdala response changed after 6 weeks of either no treatment or internet-based circadian rhythm support (CRS), cognitive behavioral therapy for insomnia (CBT-I), or their combination (CBT-I+CRS). Effects on depression, insomnia and anxiety severity were followed up for 1 year. Results: Only combined treatment (CBT-I+CRS) significantly increased the amygdala response, compared with no treatment, CBT-I, and CRS. Individual differences in the degree of response enhancement were associated with improvement of insomnia symptoms directly after treatment (r = -0.41, p = .021). Moreover, exclusively CBT-I+CRS enhanced responsiveness of the left insula, which occurred in proportion to the reduction in depressive symptom severity (r = -0.37, p = .042). Conclusions: This functional magnetic resonance imaging study on insomnia treatment, the largest to date, shows that a combined cognitive, behavioral, and circadian intervention enhances emotional brain responsiveness and might improve resilience in patients with insomnia who are at high risk of developing depression.
MeSH term(s)	Humans ; Sleep Initiation and Maintenance Disorders/therapy ; Treatment Outcome ; Brain ; Emotions ; Circadian Rhythm ; Cognition
Language	English
Publishing date	2023-03-21
Publishing country	United States
Document type	Journal Article
ZDB-ID	2879089-3
ISSN	2451-9030 ; 2451-9022
ISSN (online)	2451-9030
ISSN	2451-9022
DOI	10.1016/j.bpsc.2023.03.007
Database	MEDical Literature Analysis and Retrieval System OnLINE

Order via subito

Article: Nutzen altersmedizinischer Abklärungen vor Operationen, Interventionen und onkologischen Therapien.

Gagesch, Michael / Rösler, Wiebke / Bauernschmitt, Robert / Wilhelm, Markus J / Freystätter, Gregor

Praxis

2023 Volume 112, Issue 5-6, Page(s) 340–347

Abstract: Benefit of a Geriatric Evaluation before Operations, Interventions and Oncological ... ...

Title translation	Benefit of a Geriatric Evaluation before Operations, Interventions and Oncological Therapies.
Abstract	Benefit of a Geriatric Evaluation before Operations, Interventions and Oncological Therapies
MeSH term(s)	Humans ; Aged ; Geriatric Assessment/methods ; Treatment Outcome
Language	German
Publishing date	2023-03-31
Publishing country	Switzerland
Document type	English Abstract ; Journal Article
ZDB-ID	209026-0
ISSN	1661-8165 ; 1661-8157 ; 0369-8394
ISSN (online)	1661-8165
ISSN	1661-8157 ; 0369-8394
DOI	10.1024/1661-8157/a004050
Database	MEDical Literature Analysis and Retrieval System OnLINE

In stock of ZB MED Cologne/Königswinter

Ua VI Zs.118: Show issues			Location: Je nach Verfügbarkeit (siehe Angabe bei Bestand) bis Jg. 2021: Bestellungen von Artikeln über das Online-Bestellformular ab Jg. 2022: Lesesaal (EG)
Zs.MO 12: Show issues

Order via subito

Details ▾
- See ZB MED holdings
- Order with fees

Article ; Online: Broadband Internet Access in First Nation Reserve Communities and Maldistribution of Canadian Dermatologists: An Ecologic Study.

McMullen, Eric / Storm, Kyle / Maazi, Mahan / Roesler, Jordanna / Asiniwasis, Rachel / Rehmus, Wingfield

Journal of cutaneous medicine and surgery

2023 Volume 28, Issue 1, Page(s) 73–75

MeSH term(s)	Humans ; Canada ; Dermatologists ; Internet Access
Language	English
Publishing date	2023-11-08
Publishing country	United States
Document type	Letter
ZDB-ID	1361720-5
ISSN	1615-7109 ; 1203-4754
ISSN (online)	1615-7109
ISSN	1203-4754
DOI	10.1177/12034754231211345
Database	MEDical Literature Analysis and Retrieval System OnLINE

In stock of ZB MED Cologne/Königswinter

Zs.A 4987: Show issues

Location:
Je nach Verfügbarkeit (siehe Angabe bei Bestand)
bis Jg. 1994: Bestellungen von Artikeln über das Online-Bestellformular
Jg. 1995 - 2021: Lesesall (2.OG)
ab Jg. 2022: Lesesaal (EG)

Order via subito

Details ▾
- See ZB MED holdings
- Order with fees

Article ; Online: The first-night effect and the consistency of short sleep in insomnia disorder.

Cox, Roy / Rösler, Lara / Weber, Frederik D / Blanken, Tessa F / Wassing, Rick / Ramautar, Jennifer R / Van Someren, Eus J W

Journal of sleep research

2023 Volume 33, Issue 1, Page(s) e13897

Abstract: The nature and degree of objective sleep impairments in insomnia disorder remain unclear. This issue is complicated further by potential changes in sleep architecture on the first compared with subsequent nights in the laboratory. Evidence regarding ... ...

Abstract	The nature and degree of objective sleep impairments in insomnia disorder remain unclear. This issue is complicated further by potential changes in sleep architecture on the first compared with subsequent nights in the laboratory. Evidence regarding differential first-night effects in people with insomnia disorder and controls is mixed. Here, we aimed to further characterize insomnia- and night-related differences in sleep architecture. A comprehensive set of 26 sleep variables was derived from two consecutive nights of polysomnography in 61 age-matched patients with insomnia and 61 good sleeper controls. People with insomnia expressed consistently poorer sleep than controls on several variables during both nights. While poorer sleep during the first night was observed in both groups, there were qualitative differences regarding the specific sleep variables expressing a first-night effect. Short sleep (total sleep time < 6 hr) was more likely during the first night and in insomnia, although approximately 40% of patients with insomnia presenting with short sleep on night 1 no longer met this criterion on night 2, which is important given the notion of short-sleeping insomnia as a robust subtype.
MeSH term(s)	Humans ; Sleep Initiation and Maintenance Disorders/complications ; Sleep ; Polysomnography ; Sleep Wake Disorders ; Laboratories
Language	English
Publishing date	2023-04-05
Publishing country	England
Document type	Journal Article
ZDB-ID	1122722-9
ISSN	1365-2869 ; 0962-1105
ISSN (online)	1365-2869
ISSN	0962-1105
DOI	10.1111/jsr.13897
Database	MEDical Literature Analysis and Retrieval System OnLINE

In stock of ZB MED Cologne/Königswinter

Zs.A 3464: Show issues			Location: Je nach Verfügbarkeit (siehe Angabe bei Bestand) bis Jg. 1994: Bestellungen von Artikeln über das Online-Bestellformular Jg. 1995 - 2021: Lesesall (2.OG) ab Jg. 2022: Lesesaal (EG)
Zs.MO 343: Show issues

Order via subito

Details ▾
- See ZB MED holdings
- Order with fees

Book ; Online: Übergewicht und Adipositas

Fiedler, Klaus / Hauner, Hans / Hertwig, Ralph / Huber, Gerhard / Mata, Jutta / Rösler, Frank / Roosen, Jutta / Stroebe, Wolfgang / Braun, Joachim von / Westermann, Stefanie / Happe, Kathrin

Thesen und Empfehlungen zur Eindämmung der Epidemie

(Diskussion / Deutsche Akademie der Naturforscher Leopoldina ; Nr. 22)

2019

Institution	Deutsche Akademie der Naturforscher Leopoldina
Author's details	Klaus Fiedler, Hans Hauner, Ralph Hertwig, Gerhard Huber, Jutta Mata, Frank Rösler, Jutta Roosen, Wolfgang Stroebe, Joachim von Braun ; Redaktion: Dr. Stefanie Westermann, Dr. Kathrin Happe, Nationale Akademie der Wissenschaften Leopoldina ; Herausgeber: Nationale Akademie der Wissenschaften Leopoldina
Series title	Diskussion / Deutsche Akademie der Naturforscher Leopoldina ; Nr. 22 Diskussion / Deutsche Akademie der Naturforscher Leopoldina - Nationale Akademie der Wissenschaften
Collection	Diskussion / Deutsche Akademie der Naturforscher Leopoldina - Nationale Akademie der Wissenschaften
Language	German
Size	1 Online-Ressource (43 Seiten, 0,49 MB)
Publisher	Deutsche Akademie der Naturforscher Leopoldina e.V. - Nationale Akademie der Wissenschaften
Publishing place	Halle (Saale)
Publishing country	Germany
Document type	Book ; Online
Note	Das vorliegende Papier ist das Ergebnis von zwei Workshops der Wissenschaftlichen Kommission "Individuelles Handeln – Gesellschaftliche Konsequenzen" der Leopoldina am 03. Februar 2017 und am 12./13. Oktober 2017. ; Open Access
HBZ-ID	HT020644970
ISBN	9783804738621 ; 3804738621
Database	ZB MED Catalogue: Medicine, Health, Nutrition, Environment, Agriculture

Full text online

Full text

Order via subito

Inter-library loan at ZB MED

Your chosen title can be delivered directly to ZB MED Cologne location if you are registered as a user at ZB MED Cologne.

Details ▾
- Full text online
- Order with fees

Article: Modeling and experimental approaches for elucidating multi-scale uterine smooth muscle electro- and mechano-physiology: A review.

Garrett, Amy S / Means, Shawn A / Roesler, Mathias W / Miller, Kiara J W / Cheng, Leo K / Clark, Alys R

Frontiers in physiology

2022 Volume 13, Page(s) 1017649

Abstract: The uterus provides protection and nourishment (via its blood supply) to a developing fetus, and contracts to deliver the baby at an appropriate time, thereby having a critical contribution to the life of every human. However, despite this vital role, it ...

Abstract	The uterus provides protection and nourishment (via its blood supply) to a developing fetus, and contracts to deliver the baby at an appropriate time, thereby having a critical contribution to the life of every human. However, despite this vital role, it is an under-investigated organ, and gaps remain in our understanding of how contractions are initiated or coordinated. The uterus is a smooth muscle organ that undergoes variations in its contractile function in response to hormonal fluctuations, the extreme instance of this being during pregnancy and labor. Researchers typically use various approaches to studying this organ, such as experiments on uterine muscle cells, tissue samples, or the intact organ, or the employment of mathematical models to simulate the electrical, mechanical and ionic activity. The complexity exhibited in the coordinated contractions of the uterus remains a challenge to understand, requiring coordinated solutions from different research fields. This review investigates differences in the underlying physiology between human and common animal models utilized in experiments, and the experimental interventions and computational models used to assess uterine function. We look to a future of hybrid experimental interventions and modeling techniques that could be employed to improve the understanding of the mechanisms enabling the healthy function of the uterus.
Language	English
Publishing date	2022-10-07
Publishing country	Switzerland
Document type	Journal Article ; Review
ZDB-ID	2564217-0
ISSN	1664-042X
ISSN	1664-042X
DOI	10.3389/fphys.2022.1017649
Database	MEDical Literature Analysis and Retrieval System OnLINE

Order via subito

Article: Auto-Tandem Catalytic Reductive Hydroformylation in a CO

Püschel, Sebastian / Sadowski, Jan / Rösler, Thorsten / Ehmann, Kira Ruth / Vorholt, Andreas J / Leitner, Walter

ACS sustainable chemistry & engineering

2022 Volume 10, Issue 11, Page(s) 3749–3756

Abstract: Upgradation of olefin-enriched Fischer-Tropsch cuts by the synthesis of alcohols leads to drop-in-capable biosynthetic fuels with low carbon emissions. As an alternative to the conventional two-step production of long-chain alcohols, tandem catalytic ... ...

Abstract	Upgradation of olefin-enriched Fischer-Tropsch cuts by the synthesis of alcohols leads to drop-in-capable biosynthetic fuels with low carbon emissions. As an alternative to the conventional two-step production of long-chain alcohols, tandem catalytic systems improve the energy and resource efficiency. Herein, we present an auto-tandem catalytic system for the production of alcohols from olefin-paraffin mixtures. By utilization of a tertiary alkanolamine as the ligand as well as the switchable component in the solvent system, a lean reaction system capable of catalyst recycling was developed. The system was characterized with regard to the switchable solvent separation approach and reaction parameters, resulting in alcohol yields of up to 99.5% and turnover frequencies of up to 764 h
Language	English
Publishing date	2022-03-08
Publishing country	United States
Document type	Journal Article
ISSN	2168-0485
ISSN	2168-0485
DOI	10.1021/acssuschemeng.2c00419
Database	MEDical Literature Analysis and Retrieval System OnLINE

Order via subito

Inter-library loan at ZB MED

Your chosen title can be delivered directly to ZB MED Cologne location if you are registered as a user at ZB MED Cologne.

To top

More links

Kategorien

Order via subito

Inter-library loan at ZB MED

More links

Kategorien

In stock of ZB MED Cologne/Königswinter

Order via subito

More links

Kategorien

Order via subito

More links

Kategorien

Order via subito

More links

Kategorien

In stock of ZB MED Cologne/Königswinter

Order via subito

More links

Kategorien

In stock of ZB MED Cologne/Königswinter

Order via subito

More links

Kategorien

In stock of ZB MED Cologne/Königswinter

Order via subito

Full text online

More links

Kategorien

Order via subito

Inter-library loan at ZB MED

More links

Kategorien

Order via subito

More links

Kategorien

Order via subito

Inter-library loan at ZB MED