Result 1 - 10 of total 830
2023
| Keywords | Text ; ddc:540 |
|---|---|
| Language | German |
| Publishing country | de |
| Document type | Book ; Audio / Video ; Online |
| Database | BASE - Bielefeld Academic Search Engine (life sciences selection) |
Your chosen title can be delivered directly to ZB MED Cologne location if you are registered as a user at ZB MED Cologne.
2023
| Keywords | Text ; ddc:610 |
|---|---|
| Language | German |
| Publishing country | de |
| Document type | Book ; Audio / Video ; Online |
| Database | BASE - Bielefeld Academic Search Engine (life sciences selection) |
Your chosen title can be delivered directly to ZB MED Cologne location if you are registered as a user at ZB MED Cologne.
yield development, technical quality, genotypic variation
(Aus dem Institut für Zuckerrübenforschung, Göttingen ; 21)
2006
| Author's details | Dorit Bloch |
|---|---|
| Series title | Aus dem Institut für Zuckerrübenforschung, Göttingen ; 21 |
| Collection | |
| Keywords | Zuckerrübe ; Dürreresistenz ; Genotyp |
| Subject | Erbanlage ; Erbgefüge ; Erbmasse ; Erbgut ; Trockenresistenz ; Trockentoleranz ; Beta vulgaris altissima ; Sugar Beet |
| Language | English |
| Size | II, 68 S., graph. Darst., 21 cm |
| Edition | 1. Aufl. |
| Publisher | Cuvillier |
| Publishing place | Göttingen |
| Publishing country | Germany |
| Document type | Book ; Thesis |
| Thesis / German Habilitation thesis | Göttingen, Univ., Diss., 2005 |
| HBZ-ID | HT014874582 |
| ISBN | 3-86537-858-7 ; 978-3-86537-858-3 |
| Database | Catalogue ZB MED Nutrition, Environment, Agriculture |
| Shelf mark | Loan status | Location |
|---|---|---|
| 068/1772 | available for loan (reading room) | Freihandmagazin (U1) |
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Optics letters
2021 Volume 46, Issue 12, Page(s) 2876–2879
Abstract: At the planar interface between a material and vacuum, the complex surface ... ...
| Abstract | At the planar interface between a material and vacuum, the complex surface response |
|---|---|
| Language | English |
| Publishing date | 2021-06-15 |
| Publishing country | United States |
| Document type | Journal Article |
| ISSN | 1539-4794 |
| ISSN (online) | 1539-4794 |
| DOI | 10.1364/OL.422816 |
| Database | MEDical Literature Analysis and Retrieval System OnLINE |
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2023 Volume 131, Issue 14, Page(s) 143801
Abstract: Near-field thermal emission largely exceeds blackbody radiation, owing to spectrally sharp emission in surface polaritons. We turn the Casimir-Polder interaction between Cs(7P_{1/2}) and a sapphire interface into a sensor sharply filtering, at 24.687 THz, ...
| Abstract | Near-field thermal emission largely exceeds blackbody radiation, owing to spectrally sharp emission in surface polaritons. We turn the Casimir-Polder interaction between Cs(7P_{1/2}) and a sapphire interface into a sensor sharply filtering, at 24.687 THz, the near-field sapphire emission at ∼24.5 THz. The temperature evolution of the sapphire mode is demonstrated. The Cs sensor, sensitive to both dispersion and dissipation, suggests the polariton to be redshifted and sharper, as compared, up to 1100 K, to predictions from far-field sapphire emission, affected by birefringence and multiple resonances. |
|---|---|
| Language | English |
| Publishing date | 2023-10-20 |
| 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.131.143801 |
| Database | MEDical Literature Analysis and Retrieval System OnLINE |
| Z 4' 58/153: Show issues |
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JAMA network open
2023 Volume 6, Issue 6, Page(s) e2316190
Abstract: Importance: Children's role in spreading virus during the COVID-19 pandemic is yet to be elucidated, and measuring household transmission traditionally requires contact tracing.: Objective: To discern children's role in household viral transmission ... ...
| Abstract | Importance: Children's role in spreading virus during the COVID-19 pandemic is yet to be elucidated, and measuring household transmission traditionally requires contact tracing. Objective: To discern children's role in household viral transmission during the pandemic when enveloped viruses were at historic lows and the predominance of viral illnesses were attributed to COVID-19. Design, setting, and participants: This cohort study of a voluntary US cohort tracked data from participatory surveillance using commercially available thermometers with a companion smartphone app from October 2019 to October 2022. Eligible participants were individuals with temperature measurements in households with multiple members between October 2019 and October 2022 who opted into data sharing. Main outcomes and measures: Proportion of household transmissions with a pediatric index case and changes in transmissions during school breaks were assessed using app and thermometer data. Results: A total of 862 577 individuals from 320 073 households with multiple participants (462 000 female [53.6%] and 463 368 adults [53.7%]) were included. The number of febrile episodes forecast new COVID-19 cases. Within-household transmission was inferred in 54 506 (15.4%) febrile episodes and increased from the fourth pandemic period, March to July 2021 (3263 of 32 294 [10.1%]) to the Omicron BA.1/BA.2 wave (16 516 of 94 316 [17.5%]; P < .001). Among 38 787 transmissions in 166 170 households with adults and children, a median (IQR) 70.4% (61.4%-77.6%) had a pediatric index case; proportions fluctuated weekly from 36.9% to 84.6%. A pediatric index case was 0.6 to 0.8 times less frequent during typical school breaks. The winter break decrease was from 68.4% (95% CI, 57.1%-77.8%) to 41.7% (95% CI, 34.3%-49.5%) at the end of 2020 (P < .001). At the beginning of 2022, it dropped from 80.3% (95% CI, 75.1%-84.6%) to 54.5% (95% CI, 51.3%-57.7%) (P < .001). During summer breaks, rates dropped from 81.4% (95% CI, 74.0%-87.1%) to 62.5% (95% CI, 56.3%-68.3%) by August 2021 (P = .02) and from 83.8% (95% CI, 79.2%-87.5) to 62.8% (95% CI, 57.1%-68.1%) by July 2022 (P < .001). These patterns persisted over 2 school years. Conclusions and relevance: In this cohort study using participatory surveillance to measure within-household transmission at a national scale, we discerned an important role for children in the spread of viral infection within households during the COVID-19 pandemic, heightened when schools were in session, supporting a role for school attendance in COVID-19 spread. |
|---|---|
| MeSH term(s) | Adult ; Child ; Humans ; Female ; COVID-19/epidemiology ; Pandemics ; Thermometers ; Cohort Studies ; Virus Diseases/epidemiology |
| Language | English |
| Publishing date | 2023-06-01 |
| Publishing country | United States |
| Document type | Journal Article ; Research Support, Non-U.S. Gov't ; Research Support, U.S. Gov't, P.H.S. |
| ISSN | 2574-3805 |
| ISSN (online) | 2574-3805 |
| DOI | 10.1001/jamanetworkopen.2023.16190 |
| Database | MEDical Literature Analysis and Retrieval System OnLINE |
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NPJ digital medicine
2023 Volume 6, Issue 1, Page(s) 175
Abstract: Participatory surveillance systems crowdsource individual reports to rapidly assess population health phenomena. The value of these systems increases when more people join and persistently contribute. We examine the level of and factors associated with ... ...
| Abstract | Participatory surveillance systems crowdsource individual reports to rapidly assess population health phenomena. The value of these systems increases when more people join and persistently contribute. We examine the level of and factors associated with engagement in participatory surveillance among a retrospective, national-scale cohort of individuals using smartphone-connected thermometers with a companion app that allows them to report demographic and symptom information. Between January 1, 2020 and October 29, 2022, 1,325,845 participants took 20,617,435 temperature readings, yielding 3,529,377 episodes of consecutive readings. There were 1,735,805 (49.2%) episodes with self-reported symptoms (including reports of no symptoms). Compared to before the pandemic, participants were more likely to report their symptoms during pandemic waves, especially after the winter wave began (September 13, 2020) (OR across pandemic periods range from 3.0 to 4.0). Further, symptoms were more likely to be reported during febrile episodes (OR = 2.6, 95% CI = 2.6-2.6), and for new participants, during their first episode (OR = 2.4, 95% CI = 2.4-2.5). Compared with participants aged 50-65 years old, participants over 65 years were less likely to report their symptoms (OR = 0.3, 95% CI = 0.3-0.3). Participants in a household with both adults and children (OR = 1.6 [1.6-1.7]) were more likely to report symptoms. We find that the use of smart thermometers with companion apps facilitates the collection of data on a large, national scale, and provides real time insight into transmissible disease phenomena. Nearly half of individuals using these devices are willing to report their symptoms after taking their temperature, although participation varies among individuals and over pandemic stages. |
|---|---|
| Language | English |
| Publishing date | 2023-09-20 |
| Publishing country | England |
| Document type | Journal Article |
| ISSN | 2398-6352 |
| ISSN (online) | 2398-6352 |
| DOI | 10.1038/s41746-023-00917-5 |
| Database | MEDical Literature Analysis and Retrieval System OnLINE |
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2015 Volume 114, Issue 4, Page(s) 49301
Abstract: A Comment on the Letter by K. A. Whittaker et al., Phys. Rev. Lett. 112, 253201 (2014).PRLTAO0031-900710.1103/PhysRevLett.112.253201. ...
| Abstract | A Comment on the Letter by K. A. Whittaker et al., Phys. Rev. Lett. 112, 253201 (2014).PRLTAO0031-900710.1103/PhysRevLett.112.253201. |
|---|---|
| Language | English |
| Publishing date | 2015-01-30 |
| Publishing country | United States |
| Document type | Comment ; Journal Article |
| ZDB-ID | 208853-8 |
| ISSN | 1079-7114 ; 0031-9007 |
| ISSN (online) | 1079-7114 |
| ISSN | 0031-9007 |
| DOI | 10.1103/PhysRevLett.114.049301 |
| Database | MEDical Literature Analysis and Retrieval System OnLINE |
| Z 4' 58/153: Show issues |
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JMIR formative research
2022 Volume 6, Issue 9, Page(s) e37509
Abstract: Background: Temperature-taking behaviors vary with levels of circulating infectious illness; however, little is known about how these behaviors differ by demographic characteristics. Populations with higher perceived risks of illness are more likely to ... ...
| Abstract | Background: Temperature-taking behaviors vary with levels of circulating infectious illness; however, little is known about how these behaviors differ by demographic characteristics. Populations with higher perceived risks of illness are more likely to adopt protective health behaviors. Objective: We investigated differences in temperature-taking frequency and the proportion of readings that were feverish among demographic groups (age, gender, urban/rural status) over influenza offseason; influenza season; and waves 1, 2, and 3 of the COVID-19 pandemic. Methods: Using data from smart thermometers collected from May 1, 2019, to February 28, 2021, across the United States, we calculated the frequency of temperature-taking and the proportion of temperature readings that were feverish. Mixed-effects negative binomial and mixed-effects logistic regression analyses were performed to identify demographic characteristics associated with temperature-taking frequency and the proportion of feverish readings, respectively. Separate models were fit over five study periods: influenza offseason (n=122,480), influenza season (n=174,191), wave 1 of COVID-19 (n=350,385), wave 2 (n=366,489), and wave 3 (n=391,578). Results: Both temperature-taking frequency and the proportion of feverish readings differed by study period (ANOVA P<.001) and were the highest during influenza season. During all periods, children aged 2-5 years and 6-11 years had significantly higher frequencies of temperature-taking than users aged 19-30 years, and children had the highest proportion of feverish readings of all age groups, after adjusting for covariates. During wave 1 of COVID-19, users over the age of 60 years had 1.79 times (95% CI 1.76-1.83) the rate of temperature-taking as users aged 19-30 years and 74% lower odds (95% CI 72%-75%) of a reading being feverish. Across all periods, men had significantly lower temperature-taking frequency and significantly higher odds of having a feverish reading compared to women. Users living in urban areas had significantly higher frequencies of temperature-taking than rural users during all periods, except wave 2 of COVID-19, and urban users had higher odds of a reading being feverish in all study periods except wave 1 of COVID-19. Conclusions: Temperature-taking behavior and the proportion of readings that were feverish are associated with both population disease levels and individual demographic characteristics. Differences in the health behavior of temperature-taking may reflect changes in both perceived and actual illness risk. Specifically, older adults may have experienced an increase in perceived risk during the first three waves of COVID-19, leading to increased rates of temperature monitoring, even when their odds of fever were lower than those of younger adults. Men's perceived risk of circulating infectious illnesses such as influenza and COVID-19 may be lower than that of women, since men took their temperature less frequently and each temperature had a higher odds of being feverish across all study periods. Infectious disease surveillance should recognize and incorporate how behavior impacts illness monitoring and testing. |
|---|---|
| Language | English |
| Publishing date | 2022-09-08 |
| Publishing country | Canada |
| Document type | Journal Article |
| ISSN | 2561-326X |
| ISSN (online) | 2561-326X |
| DOI | 10.2196/37509 |
| Database | MEDical Literature Analysis and Retrieval System OnLINE |
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2023 Volume 131, Issue 20, Page(s) 203401
Abstract: We report the preparation and observation of single atoms of dysprosium in arrays of optical tweezers with a wavelength of 532 nm, imaged on the intercombination line at 626 nm. We use the anisotropic light shift specific to lanthanides and in particular ...
| Abstract | We report the preparation and observation of single atoms of dysprosium in arrays of optical tweezers with a wavelength of 532 nm, imaged on the intercombination line at 626 nm. We use the anisotropic light shift specific to lanthanides and in particular a large difference in tensor and vector polarizabilities between the ground and excited states to tune the differential light shift and produce tweezers in near-magic or magic polarization. This allows us to find a regime where single atoms can be trapped and imaged. Using the tweezer array toolbox to manipulate lanthanides will open new research directions for quantum physics studies by taking advantage of their rich spectrum, large spin, and magnetic dipole moment. |
|---|---|
| Language | English |
| Publishing date | 2023-12-01 |
| 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.131.203401 |
| Database | MEDical Literature Analysis and Retrieval System OnLINE |
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