LIVIVO - Search results -

Search results

Result 1 - 9 of total 9

Search options

Article ; Online: Quantum Chemical Study of the Pressure-dependent Phosphorescence of [Cr(ddpd)

Förster, Christoph / Osthues, Helena / Schwab, Dominik / Doltsinis, Nikos L / Heinze, Katja

Chemphyschem : a European journal of chemical physics and physical chemistry

2023 Volume 24, Issue 12, Page(s) e202300165

Abstract: The chromium(III) complex [Cr(ddpd) ...

Abstract	The chromium(III) complex [Cr(ddpd)
MeSH term(s)	Cations ; Chromium/chemistry
Chemical Substances	Cations ; Chromium (0R0008Q3JB)
Language	English
Publishing date	2023-04-25
Publishing country	Germany
Document type	Journal Article
ZDB-ID	2025223-7
ISSN	1439-7641 ; 1439-4235
ISSN (online)	1439-7641
ISSN	1439-4235
DOI	10.1002/cphc.202300165
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.

Article ; Online: Triplet Emitting C^N^C Cyclometalated Dibenzo[c,h]Acridine Pt(II) Complexes.

Friedel, Joshua / Krause, Maren / Jordan, Rose / Maisuls, Iván / Brünink, Dana / Schwab, Dominik / Doltsinis, Nikos L / Strassert, Cristian A / Klein, Axel

Molecules (Basel, Switzerland)

2022 Volume 27, Issue 22

Abstract: In a series of Pt(II) complexes [Pt(dba)(L)] containing the very rigid, dianionic, bis-cyclometalating, tridentate C^N^C2− heterocyclic ligand dba2− (H2dba = dibenzo[c,h]acridine), the coligand (ancillary ligand) L = dmso, PPh3, CNtBu and Me2Imd (N,N’- ... ...

Abstract	In a series of Pt(II) complexes [Pt(dba)(L)] containing the very rigid, dianionic, bis-cyclometalating, tridentate C^N^C2− heterocyclic ligand dba2− (H2dba = dibenzo[c,h]acridine), the coligand (ancillary ligand) L = dmso, PPh3, CNtBu and Me2Imd (N,N’-dimethylimidazolydene) was varied in order to improve its luminescence properties. Beginning with the previously reported dmso complex, we synthesized the PPh3, CNtBu and Me2Imd derivatives and characterized them by elemental analysis, 1H (and 31P) NMR spectroscopy and MS. Cyclic voltammetry showed partially reversible reduction waves ranging between −1.89 and −2.10 V and increasing along the series Me2Imd < dmso ≈ PPh3 < CNtBu. With irreversible oxidation waves ranging between 0.55 (L = Me2Imd) and 1.00 V (dmso), the electrochemical gaps range between 2.65 and 2.91 eV while increasing along the series Me2Imd < CNtBu < PPh3 < dmso. All four complexes show in part vibrationally structured long-wavelength absorption bands peaking at around 530 nm. TD-DFT calculated spectra agree quite well with the experimental spectra, with only a slight redshift. The photoluminescence spectra of all four compounds are very similar. In fluid solution at 298 K, they show broad, only partially structured bands, with maxima at around 590 nm, while in frozen glassy matrices at 77 K, slightly blue-shifted (~580 nm) bands with clear vibronic progressions were found. The photoluminescence quantum yields ΦL ranged between 0.04 and 0.24, at 298 K, and between 0.80 and 0.90 at 77 K. The lifetimes τ at 298 K ranged between 60 and 14040 ns in Ar-purged solutions and increased from 17 to 43 µs at 77 K. The TD-DFT calculated emission spectra are in excellent agreement with the experimental findings. In terms of high ΦL and long τ, the dmso and PPh3 complexes outperform the CNtBu and Me2Imd derivatives. This is remarkable in view of the higher ligand strength of Me2Imd, compared with all other coligands, as concluded from the electrochemical data.
Language	English
Publishing date	2022-11-19
Publishing country	Switzerland
Document type	Journal Article
ZDB-ID	1413402-0
ISSN	1420-3049 ; 1431-5165 ; 1420-3049
ISSN (online)	1420-3049
ISSN	1431-5165 ; 1420-3049
DOI	10.3390/molecules27228054
Database	MEDical Literature Analysis and Retrieval System OnLINE

In stock of ZB MED Cologne/Königswinter

Zs.MO 81: Show issues

Order via subito

Details ▾
- See ZB MED holdings
- Order with fees

Article ; Online: Compensation of Hybridization Defects in Phosphorescent Complexes with Pnictogen-Based Ligands-A Structural, Photophysical, and Theoretical Case-Study with Predictive Character.

Gangadharappa, Sathish Chatnahalli / Maisuls, Iván / Schwab, Dominik A / Kösters, Jutta / Doltsinis, Nikos L / Strassert, Cristian A

Journal of the American Chemical Society

2020 Volume 142, Issue 51, Page(s) 21353–21367

Abstract: In this work, for the first time, the comparative use of P-, As-, and Sb-based ligands in phosphorescent coordination compounds is reported toward new coordination chemical concepts in the design and realization of tailored triplet emitters with ... ...

Abstract	In this work, for the first time, the comparative use of P-, As-, and Sb-based ligands in phosphorescent coordination compounds is reported toward new coordination chemical concepts in the design and realization of tailored triplet emitters with nonconventional elements. By means of spectroscopic, X-ray diffractometric, and quantum-chemical methods, we reconstructed the nature of the chemical bonds as well as the influence of the increasingly heavy elements on the photoexcited state properties, which were correlated with the hybridization and polarizability of the pnictogen atoms (
Language	English
Publishing date	2020-12-15
Publishing country	United States
Document type	Journal Article
ZDB-ID	3155-0
ISSN	1520-5126 ; 0002-7863
ISSN (online)	1520-5126
ISSN	0002-7863
DOI	10.1021/jacs.0c09467
Database	MEDical Literature Analysis and Retrieval System OnLINE

In stock of ZB MED Bonn / Germany

Z 4' 55/32: Show issues
Z 7.3: Show issues

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 ▾
- See ZB MED holdings
- Order with fees

Article ; Online: Elevator-like movements of prestin mediate outer hair cell electromotility.

Kuwabara, Makoto F / Haddad, Bassam G / Lenz-Schwab, Dominik / Hartmann, Julia / Longo, Piersilvio / Huckschlag, Britt-Marie / Fuß, Anneke / Questino, Annalisa / Berger, Thomas K / Machtens, Jan-Philipp / Oliver, Dominik

Nature communications

2023 Volume 14, Issue 1, Page(s) 7145

Abstract: The outstanding acuity of the mammalian ear relies on cochlear amplification, an active mechanism based on the electromotility (eM) of outer hair cells. eM is a piezoelectric mechanism generated by little-understood, voltage-induced conformational ... ...

Abstract	The outstanding acuity of the mammalian ear relies on cochlear amplification, an active mechanism based on the electromotility (eM) of outer hair cells. eM is a piezoelectric mechanism generated by little-understood, voltage-induced conformational changes of the anion transporter homolog prestin (SLC26A5). We used a combination of molecular dynamics (MD) simulations and biophysical approaches to identify the structural dynamics of prestin that mediate eM. MD simulations showed that prestin samples a vast conformational landscape with expanded (ES) and compact (CS) states beyond previously reported prestin structures. Transition from CS to ES is dominated by the translational-rotational movement of prestin's transport domain, akin to elevator-type substrate translocation by related solute carriers. Reversible transition between CS and ES states was supported experimentally by cysteine accessibility scanning, cysteine cross-linking between transport and scaffold domains, and voltage-clamp fluorometry (VCF). Our data demonstrate that prestin's piezoelectric dynamics recapitulate essential steps of a structurally conserved ion transport cycle.
MeSH term(s)	Animals ; Hair Cells, Auditory, Outer/metabolism ; Cysteine/metabolism ; Anions/metabolism ; Ion Transport ; Membrane Transport Proteins/metabolism ; Anion Transport Proteins/metabolism ; Mammals/metabolism
Chemical Substances	Cysteine (K848JZ4886) ; Anions ; Membrane Transport Proteins ; Anion Transport Proteins
Language	English
Publishing date	2023-11-06
Publishing country	England
Document type	Journal Article ; Research Support, Non-U.S. Gov't
ZDB-ID	2553671-0
ISSN	2041-1723 ; 2041-1723
ISSN (online)	2041-1723
ISSN	2041-1723
DOI	10.1038/s41467-023-42489-8
Database	MEDical Literature Analysis and Retrieval System OnLINE

Order via subito

Article ; Online: Pt(II) Complexes with Tetradentate C^N*N^C Luminophores: From Supramolecular Interactions to Temperature-Sensing Materials with Memory and Optical Readouts.

Gutierrez Suburu, Matias E / Blanke, Meik / Hepp, Alexander / Maus, Oliver / Schwab, Dominik / Doltsinis, Nikos L / Zeier, Wolfgang G / Giese, Michael / Voskuhl, Jens / Strassert, Cristian A

Molecules (Basel, Switzerland)

2023 Volume 28, Issue 21

Abstract: A series of four regioisomeric Pt(II) complexes ( ...

Abstract	A series of four regioisomeric Pt(II) complexes (
Language	English
Publishing date	2023-10-30
Publishing country	Switzerland
Document type	Journal Article
ZDB-ID	1413402-0
ISSN	1420-3049 ; 1431-5165 ; 1420-3049
ISSN (online)	1420-3049
ISSN	1431-5165 ; 1420-3049
DOI	10.3390/molecules28217353
Database	MEDical Literature Analysis and Retrieval System OnLINE

In stock of ZB MED Cologne/Königswinter

Zs.MO 81: Show issues

Order via subito

Details ▾
- See ZB MED holdings
- Order with fees

Article: Tropical land use drives endemic versus exotic ant communities in a global biodiversity hotspot

Rakotomalala, Anjaharinony A. N. A. / Wurz, Annemarie / Grass, Ingo / Martin, Dominic A. / Osen, Kristina / Schwab, Dominik / Soazafy, Marie Rolande / Tscharntke, Teja / Raveloson Ravaomanarivo, Lala H.

Biodiversity and conservation. 2021 Dec., v. 30, no. 14

2021

Abstract: Understanding how land-use change affects biodiversity is a fundamental step to develop effective conservation strategies in human-modified tropical landscapes. Here, we analyzed how land-use change through tropical small-scale agriculture affects ... ...

Abstract	Understanding how land-use change affects biodiversity is a fundamental step to develop effective conservation strategies in human-modified tropical landscapes. Here, we analyzed how land-use change through tropical small-scale agriculture affects endemic, exotic, and non-endemic native ant communities, focusing on vanilla landscapes in north-eastern Madagascar, a global biodiversity hotspot. First, we compared ant species richness and species composition across seven land-use types: old-growth forest, forest fragment, forest-derived vanilla agroforest, fallow-derived vanilla agroforest, woody fallow, herbaceous fallow, and rice paddy. Second, we assessed how environmental factors drive ant species richness in the agricultural matrix to identify management options that promote endemic and non-endemic native while controlling exotic ant species. We found that old-growth forest, forest fragment, and forest-derived vanilla agroforest supported the highest endemic ant species richness. Exotic ant species richness, by contrast, was lowest in old-growth forest but highest in herbaceous fallows, woody fallows, and rice paddy. Rice paddy had the lowest non-endemic native ant species richness. Ant species composition differed among land-use types, highlighting the uniqueness of old-growth forest in harboring endemic ant species which are more sensitive to disturbance. In the agricultural matrix, higher canopy closure and landscape forest cover were associated with an increase of endemic ant species richness but a decrease of exotic ant species richness. We conclude that preserving remnant forest fragments and promoting vanilla agroforests with a greater canopy closure in the agricultural matrix are important management strategies to complement the role of old-growth forests for endemic ant conservation in north-eastern Madagascar.
Keywords	agroforestry ; canopy ; fallow ; habitat fragmentation ; land use change ; landscapes ; old-growth forests ; paddies ; rice ; small-scale farming ; species richness ; Madagascar
Language	English
Dates of publication	2021-12
Size	p. 4417-4434.
Publishing place	Springer Netherlands
Document type	Article
ZDB-ID	2000787-5
ISSN	1572-9710 ; 0960-3115
ISSN (online)	1572-9710
ISSN	0960-3115
DOI	10.1007/s10531-021-02314-4
Database	NAL-Catalogue (AGRICOLA)

Order via subito

Article: Listening to a changing landscape: Acoustic indices reflect bird species richness and plot-scale vegetation structure across different land-use types in north-eastern Madagascar

Dröge, Saskia / Martin, Dominic Andreas / Andriafanomezantsoa, Rouvah / Burivalova, Zuzana / Fulgence, Thio Rosin / Osen, Kristina / Rakotomalala, Eric / Schwab, Dominik / Wurz, Annemarie / Richter, Torsten / Kreft, Holger

Ecological indicators. 2021 Jan., v. 120

2021

Abstract: New technologies like ecoacoustic surveys promise time and cost efficiency for biodiversity assessments, serve as a basis for effective conservation policies, and are particularly appealing for remote and highly diverse tropical areas. Acoustic indices ... ...

Abstract	New technologies like ecoacoustic surveys promise time and cost efficiency for biodiversity assessments, serve as a basis for effective conservation policies, and are particularly appealing for remote and highly diverse tropical areas. Acoustic indices facilitate the analysis of large acoustic datasets but no consensus on their performance has been reached yet. We evaluated the efficacy of four acoustic indices (Acoustic Complexity Index, Acoustic Diversity Index, Acoustic Evenness Index, Acoustic Entropy) for sound data analysis and biodiversity assessments inside a national park and the agricultural mosaic landscape of north-eastern Madagascar, a global biodiversity hotspot. We used self-built sound recorders to continuously record soundscapes on 80plots across seven land-use types (old-growth forest, forest fragment, forest–derived and fallow-derived vanilla agroforest, herbaceous and woody fallow, rice paddy) and compared index values between land–use types, assessed the correlation with bird species richness as measured by point counts, and related the acoustic indices to plot- and landscape-scale parameters. The Acoustic Diversity Index, Acoustic Evenness Index (inverse) and Acoustic Entropy were highest in old-growth forest and lowest for rice paddies and fallow land. Index values for structurally similar land-use types did not differ significantly from each other. The correlation of the three acoustic indices with bird species richness was strongest during daytime (R2≥0.30). Differences in the index values were best explained by land-use type and vegetation density. Our results showed that all investigated indices except the Acoustic Complexity Index were suitable biodiversity indicators for a tropical, agricultural landscape. Soundscape diversity was positively affected by plot-scale vegetation structure, emphasizing the importance of forests and particularly old-growth forest for conservation. We demonstrated that acoustic indices and sound recordings are a useful tool for assessing biodiversity in tropical agricultural mosaic landscapes. To realize the full potential of ecoacoustics in conservation, sampling guidelines and user-friendly analysis packages will be key to facilitate a wider implementation.
Keywords	acoustics ; agricultural landscapes ; agroforestry ; birds ; cost effectiveness ; data collection ; entropy ; fallow ; habitat fragmentation ; land use ; national parks ; old-growth forests ; paddies ; rice ; species richness ; vegetation structure ; Madagascar
Language	English
Dates of publication	2021-01
Publishing place	Elsevier Ltd
Document type	Article
ZDB-ID	2036774-0
ISSN	1872-7034 ; 1470-160X
ISSN (online)	1872-7034
ISSN	1470-160X
DOI	10.1016/j.ecolind.2020.106929
Database	NAL-Catalogue (AGRICOLA)

In stock of ZB MED Bonn / Germany

Z 7436: Show issues

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 ▾
- See ZB MED holdings
- Order with fees

Article ; Online: Land-use trajectories for sustainable land system transformations: Identifying leverage points in a global biodiversity hotspot.

Martin, Dominic Andreas / Andrianisaina, Fanilo / Fulgence, Thio Rosin / Osen, Kristina / Rakotomalala, Anjaharinony Andry Ny Aina / Raveloaritiana, Estelle / Soazafy, Marie Rolande / Wurz, Annemarie / Andriafanomezantsoa, Rouvah / Andriamaniraka, Harilala / Andrianarimisa, Aristide / Barkmann, Jan / Dröge, Saskia / Grass, Ingo / Guerrero-Ramirez, Nathaly / Hänke, Hendrik / Hölscher, Dirk / Rakouth, Bakolimalala / Ranarijaona, Hery Lisy Tiana /

Randriamanantena, Romual / Ratsoavina, Fanomezana Mihaja / Ravaomanarivo, Lala Harivelo Raveloson / Schwab, Dominik / Tscharntke, Teja / Zemp, Delphine Clara / Kreft, Holger

Proceedings of the National Academy of Sciences of the United States of America

2022 Volume 119, Issue 7

Abstract: Sustainable land-system transformations are necessary to avert biodiversity and climate collapse. However, it remains unclear where entry points for transformations exist in complex land systems. Here, we conceptualize land systems along land-use ... ...

Abstract	Sustainable land-system transformations are necessary to avert biodiversity and climate collapse. However, it remains unclear where entry points for transformations exist in complex land systems. Here, we conceptualize land systems along land-use trajectories, which allows us to identify and evaluate leverage points, i.e., entry points on the trajectory where targeted interventions have particular leverage to influence land-use decisions. We apply this framework in the biodiversity hotspot Madagascar. In the northeast, smallholder agriculture results in a land-use trajectory originating in old-growth forests and spanning from forest fragments to shifting hill rice cultivation and vanilla agroforests. Integrating interdisciplinary empirical data on seven taxa, five ecosystem services, and three measures of agricultural productivity, we assess trade-offs and cobenefits of land-use decisions at three leverage points along the trajectory. These trade-offs and cobenefits differ between leverage points: Two leverage points are situated at the conversion of old-growth forests and forest fragments to shifting cultivation and agroforestry, resulting in considerable trade-offs, especially between endemic biodiversity and agricultural productivity. Here, interventions enabling smallholders to conserve forests are necessary. This is urgent since ongoing forest loss threatens to eliminate these leverage points due to path dependency. The third leverage point allows for the restoration of land under shifting cultivation through vanilla agroforests and offers cobenefits between restoration goals and agricultural productivity. The co-occurring leverage points highlight that conservation and restoration are simultaneously necessary to avert collapse of multifunctional mosaic landscapes. Methodologically, the framework highlights the importance of considering path dependency along trajectories to achieve sustainable land-system transformations.
MeSH term(s)	Agriculture ; Animals ; Biodiversity ; Conservation of Natural Resources/methods ; Forestry ; Humans ; Madagascar ; Models, Biological
Language	English
Publishing date	2022-02-11
Publishing country	United States
Document type	Journal Article
ZDB-ID	209104-5
ISSN	1091-6490 ; 0027-8424
ISSN (online)	1091-6490
ISSN	0027-8424
DOI	10.1073/pnas.2107747119
Database	MEDical Literature Analysis and Retrieval System OnLINE

In stock of ZB MED Cologne/Königswinter

Zs.A 1148: 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 ; Online: Tapping into non-English-language science for the conservation of global biodiversity.

Amano, Tatsuya / Berdejo-Espinola, Violeta / Christie, Alec P / Willott, Kate / Akasaka, Munemitsu / Báldi, András / Berthinussen, Anna / Bertolino, Sandro / Bladon, Andrew J / Chen, Min / Choi, Chang-Yong / Bou Dagher Kharrat, Magda / de Oliveira, Luis G / Farhat, Perla / Golivets, Marina / Hidalgo Aranzamendi, Nataly / Jantke, Kerstin / Kajzer-Bonk, Joanna / Kemahlı Aytekin, M Çisel /

Khorozyan, Igor / Kito, Kensuke / Konno, Ko / Lin, Da-Li / Littlewood, Nick / Liu, Yang / Liu, Yifan / Loretto, Matthias-Claudio / Marconi, Valentina / Martin, Philip A / Morgan, William H / Narváez-Gómez, Juan P / Negret, Pablo Jose / Nourani, Elham / Ochoa Quintero, Jose M / Ockendon, Nancy / Oh, Rachel Rui Ying / Petrovan, Silviu O / Piovezan-Borges, Ana C / Pollet, Ingrid L / Ramos, Danielle L / Reboredo Segovia, Ana L / Rivera-Villanueva, A Nayelli / Rocha, Ricardo / Rouyer, Marie-Morgane / Sainsbury, Katherine A / Schuster, Richard / Schwab, Dominik / Şekercioğlu, Çağan H / Seo, Hae-Min / Shackelford, Gorm / Shinoda, Yushin / Smith, Rebecca K / Tao, Shan-Dar / Tsai, Ming-Shan / Tyler, Elizabeth H M / Vajna, Flóra / Valdebenito, José Osvaldo / Vozykova, Svetlana / Waryszak, Paweł / Zamora-Gutierrez, Veronica / Zenni, Rafael D / Zhou, Wenjun / Sutherland, William J

PLoS biology

2021 Volume 19, Issue 10, Page(s) e3001296

Abstract: The widely held assumption that any important scientific information would be available in English underlies the underuse of non-English-language science across disciplines. However, non-English-language science is expected to bring unique and valuable ... ...

Abstract	The widely held assumption that any important scientific information would be available in English underlies the underuse of non-English-language science across disciplines. However, non-English-language science is expected to bring unique and valuable scientific information, especially in disciplines where the evidence is patchy, and for emergent issues where synthesising available evidence is an urgent challenge. Yet such contribution of non-English-language science to scientific communities and the application of science is rarely quantified. Here, we show that non-English-language studies provide crucial evidence for informing global biodiversity conservation. By screening 419,679 peer-reviewed papers in 16 languages, we identified 1,234 non-English-language studies providing evidence on the effectiveness of biodiversity conservation interventions, compared to 4,412 English-language studies identified with the same criteria. Relevant non-English-language studies are being published at an increasing rate in 6 out of the 12 languages where there were a sufficient number of relevant studies. Incorporating non-English-language studies can expand the geographical coverage (i.e., the number of 2° × 2° grid cells with relevant studies) of English-language evidence by 12% to 25%, especially in biodiverse regions, and taxonomic coverage (i.e., the number of species covered by the relevant studies) by 5% to 32%, although they do tend to be based on less robust study designs. Our results show that synthesising non-English-language studies is key to overcoming the widespread lack of local, context-dependent evidence and facilitating evidence-based conservation globally. We urge wider disciplines to rigorously reassess the untapped potential of non-English-language science in informing decisions to address other global challenges. Please see the Supporting information files for Alternative Language Abstracts.
MeSH term(s)	Animals ; Biodiversity ; Conservation of Natural Resources ; Geography ; Language ; Publications ; Science
Language	English
Publishing date	2021-10-07
Publishing country	United States
Document type	Journal Article ; Research Support, Non-U.S. Gov't
ZDB-ID	2126776-5
ISSN	1545-7885 ; 1544-9173
ISSN (online)	1545-7885
ISSN	1544-9173
DOI	10.1371/journal.pbio.3001296
Database	MEDical Literature Analysis and Retrieval System OnLINE

In stock of ZB MED Cologne/Königswinter

Zs.A 6193: 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)

Order via subito

Details ▾
- See ZB MED holdings
- Order with fees

To top

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 Bonn / Germany

Order via subito

Inter-library loan at ZB MED

More links

Kategorien

Order via subito

More links

Kategorien

In stock of ZB MED Cologne/Königswinter

Order via subito

More links

Kategorien

Order via subito

More links

Kategorien

In stock of ZB MED Bonn / Germany

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

In stock of ZB MED Cologne/Königswinter

Order via subito