LIVIVO - Search results -

Search results

Result 1 - 10 of total 1630

Search options

Book ; Online: Encoding Binary Events from Continuous Time Series in Rooted Trees using Contrastive Learning

Rasmussen, Tobias Engelhardt / Sørensen, Siv

2024

Abstract: Broadband infrastructure owners do not always know how their customers are connected in the local networks, which are structured as rooted trees. A recent study is able to infer the topology of a local network using discrete time series data from the ... ...

Abstract	Broadband infrastructure owners do not always know how their customers are connected in the local networks, which are structured as rooted trees. A recent study is able to infer the topology of a local network using discrete time series data from the leaves of the tree (customers). In this study we propose a contrastive approach for learning a binary event encoder from continuous time series data. As a preliminary result, we show that our approach has some potential in learning a valuable encoder. Comment: Extended abstract presented as a poster at the Northern Lights Deep Learning Conference 2024 in Troms{\o}, Norway
Keywords	Computer Science - Machine Learning ; Computer Science - Artificial Intelligence ; Computer Science - Social and Information Networks ; Statistics - Machine Learning
Publishing date	2024-01-02
Publishing country	us
Document type	Book ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

Full text online

Full text

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: Evidence for Complex Dynamics in Glassy Fast Ion Conductors: The Case of Sodium Thiosilicates.

Sørensen, S S / Smedskjaer, M M / Micoulaut, M

The journal of physical chemistry. B

2023 Volume 127, Issue 47, Page(s) 10179–10188

Abstract: Classical molecular dynamics is used to study the dynamics of alkali ions in a promising fast ion conductor glass system, i.e., ... ...

Abstract	Classical molecular dynamics is used to study the dynamics of alkali ions in a promising fast ion conductor glass system, i.e., Na
Language	English
Publishing date	2023-11-17
Publishing country	United States
Document type	Journal Article
ISSN	1520-5207
ISSN (online)	1520-5207
DOI	10.1021/acs.jpcb.3c02909
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: Grid-connected cabin preheating of Electric Vehicles in cold climates - A non-flexible share of the EV energy use

Lekang Sørensen, Åse / Ludvigsen, Bjørn / Andresen, Inger

Applied Energy. 2023, p.121054-

2023 , Page(s) 121054–

Abstract: The number of EVs is increasing globally. In cold climates, it is generally recommended to use electricity from the grid to preheat the EV cabin before using the car, to extend driving ranges, to ensure comfort, and for safety. A majority of such ... ...

Abstract	The number of EVs is increasing globally. In cold climates, it is generally recommended to use electricity from the grid to preheat the EV cabin before using the car, to extend driving ranges, to ensure comfort, and for safety. A majority of such preheating sessions are happening in the morning hours during the winter, when there is also a high demand for other energy use. It is thus important to understand the power loads for grid-connected preheating of EV cabins. This work presents an experimental study, with 51 preheating sessions of five typical EV models during different outdoor temperatures. The results of the study showed that during the preheating sessions, most of the EVs had a power use of between 3 and 8 kW initially, which was reduced to about 2 to 4 kW after a 10 to 20 minutes initial period. For most of the sessions, the preheating lasted between 15 and 45 minutes. The preheating energy use was found to be up to 2 kWh for most EVs, with a maximum of 5 kWh. Multiple linear regression models were developed, to investigate the relationship between various variables and the energy use for preheating. Finally, hourly energy loads for EV cabin preheating were compared to other energy loads in apartment buildings. The power and energy loads for preheating EV cabins are affected by a number of parameters, such as the specific EV, charge point, preheating duration, temperature levels, and user habits.
Keywords	cold ; electricity ; energy ; regression analysis ; temperature ; winter ; Electric vehicles ; Low temperature ; Cabin preheating ; Power monitoring ; Multiple linear regression ; Non-flexible energy load
Language	English
Publishing place	Elsevier Ltd
Document type	Article ; Online
Note	Pre-press version ; Use and reproduction
ZDB-ID	2000772-3
ISSN	0306-2619
ISSN	0306-2619
DOI	10.1016/j.apenergy.2023.121054
Database	NAL-Catalogue (AGRICOLA)

Order via subito

Article ; Online: Differences in bacterial taxa between treatment-naive patients with major depressive disorder and non-affected controls may be related to a proinflammatory profile.

Knudsen, Julie Kristine / Bundgaard-Nielsen, Caspar / Leutscher, Peter / Hjerrild, Simon / Nielsen, René Ernst / Sørensen, Suzette

BMC psychiatry

2024 Volume 24, Issue 1, Page(s) 84

Abstract: Background: Major depressive disorder (MDD) is characterized by sadness and anhedonia, but also physical symptoms such as changes in appetite and weight. Gut microbiota has been hypothesized to be involved in MDD through gut-brain axis signaling. ... ...

Abstract	Background: Major depressive disorder (MDD) is characterized by sadness and anhedonia, but also physical symptoms such as changes in appetite and weight. Gut microbiota has been hypothesized to be involved in MDD through gut-brain axis signaling. Moreover, antidepressants display antibacterial properties in the gastrointestinal tract. The aim of this study was to compare the gut microbiota and systemic inflammatory profile of young patients with MDD before and after initiation of antidepressant treatment and/or psychotherapy in comparison with a non-depressed control group (nonMDD). Methods: Fecal and blood samples were collected at baseline and at follow-up after four and twelve weeks, respectively. Patients started treatment immediately after collection of the baseline samples. The gut microbiota was characterized by 16 S rRNA gene sequencing targeting the hypervariable V4 region. Plasma levels of 49 unique immune markers were assessed using Mesoscale. Results: In total, 27 MDD patients and 32 nonMDD controls were included in the study. The gut microbiota in the baseline samples of MDD versus nonMDD participants did not differ regarding α- or β-diversity. However, there was a higher relative abundance of the genera Ruminococcus gnavus group, and a lower relative abundance of the genera Desulfovibrio, Tyzzerella, Megamonas, Olsenella, Gordonibacter, Allisonella and Rothia in the MDD group compared to the nonMDD group. In the MDD group, there was an increase in the genera Rothia, Desulfovibrio, Gordinobacteer and Lactobacillus, while genera belonging to the Firmicutes phylum were found depleted at twelve weeks follow-up compared to baseline. In the MDD group, IL-7, IL-8 and IL-17b levels were elevated compared to the nonMDD group at baseline. Furthermore, MDI score in the MDD group was found to correlate with Bray-Curtis dissimilarity at baseline, and several inflammatory markers at both baseline and after initiation of antidepressant treatment. Conclusion: Several bacterial taxa differed between the MDD group and the nonMDD group at baseline and changed in relative abundance during antidepressant treatment and/or psychotherapy. The MDD group was furthermore found to have a pro-inflammatory profile compared to the nonMDD group at baseline. Further studies are required to investigate the gut microbiota and pro-inflammatory profile of patients with MDD.
MeSH term(s)	Humans ; Depressive Disorder, Major/drug therapy ; Gastrointestinal Microbiome ; Antidepressive Agents ; Cognition ; Psychotherapy
Chemical Substances	Antidepressive Agents
Language	English
Publishing date	2024-01-31
Publishing country	England
Document type	Journal Article
ZDB-ID	2050438-X
ISSN	1471-244X ; 1471-244X
ISSN (online)	1471-244X
ISSN	1471-244X
DOI	10.1186/s12888-024-05547-z
Database	MEDical Literature Analysis and Retrieval System OnLINE

Order via subito

Article ; Online: Robotic technology (ROBERT

Sørensen, S L / Poulsen, I / Harvey, L A / Biering-Sørensen, F / Nielsen, J F

Spinal cord series and cases

2024 Volume 10, Issue 1, Page(s) 20

Abstract: Study design: Feasibility study.: Objective: To determine the feasibility of conducting a large trial designed to determine whether the ROBERT: Setting: Specialised SCI centre in Denmark.: Methods: All first-time admitted patients were screened ...

Abstract	Study design: Feasibility study. Objective: To determine the feasibility of conducting a large trial designed to determine whether the ROBERT Setting: Specialised SCI centre in Denmark. Methods: All first-time admitted patients were screened to assess participant recruitment capability. Four people with SCI < 3 months tested a protocol consisting of 60 repetitions of hip flexion in supine conducted with the assistance of the ROBERT Results: The recruitment rate was 8% (7 months). The four participants completed 44 out of 48 sessions (92%). No adverse events occurred. One physiotherapist was required to set-up and supervise each session. The active exercise time varied from 7.5 to 17 min. The participants found the ROBERT Conclusion: The ROBERT Trial registration: ClinicalTrials.gov NCT05558254. Registered 28th September 2022.
MeSH term(s)	Humans ; Feasibility Studies ; Robotic Surgical Procedures ; Spinal Cord Injuries/rehabilitation ; Muscle Strength ; Muscles
Language	English
Publishing date	2024-04-10
Publishing country	England
Document type	Journal Article
ISSN	2058-6124
ISSN (online)	2058-6124
DOI	10.1038/s41394-024-00630-9
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.

Article ; Online: Racial differences in the effect of verbal and nonverbal memory on concrete planning for future care needs among older adults: a multi-group structural equation modeling approach.

Lane, Jamil M / Zimmer, Alexis / Quiñones-Cordero, Maria M / Sörensen, Silvia

Neuropsychology, development, and cognition. Section B, Aging, neuropsychology and cognition

2023 , Page(s) 1–18

Abstract: Concrete planning for future care needs may positively impact older adults' subsequent mental health and quality of life. However, the cognitive factors that facilitate concrete planning among Black and White older adults are still poorly understood. We ... ...

Abstract	Concrete planning for future care needs may positively impact older adults' subsequent mental health and quality of life. However, the cognitive factors that facilitate concrete planning among Black and White older adults are still poorly understood. We investigated whether there are significant differences between Black (
Language	English
Publishing date	2023-06-15
Publishing country	United States
Document type	Journal Article
ZDB-ID	1482447-4
ISSN	1744-4128 ; 1382-5585
ISSN (online)	1744-4128
ISSN	1382-5585
DOI	10.1080/13825585.2023.2223902
Database	MEDical Literature Analysis and Retrieval System OnLINE

Order via subito

Article ; Online: The Success of Cancer Crowdfunding Campaigns: Project and Text Analysis.

Zhang, Xupin / Tao, Xinqi / Ji, Bingxiang / Wang, Renwu / Sörensen, Silvia

Journal of medical Internet research

2023 Volume 25, Page(s) e44197

Abstract: Background: Recent studies have analyzed the factors that contribute to variations in the success of crowdfunding campaigns for a specific cancer type; however, little is known about the influential factors among crowdfunding campaigns for multiple ... ...

Abstract	Background: Recent studies have analyzed the factors that contribute to variations in the success of crowdfunding campaigns for a specific cancer type; however, little is known about the influential factors among crowdfunding campaigns for multiple cancers. Objective: The purpose of this study was to examine the relationship between project features and the success of cancer crowdfunding campaigns and to determine whether text features affect campaign success for various cancers. Methods: Using cancer-related crowdfunding projects on the GoFundMe website, we transformed textual descriptions from the campaigns into structured data using natural language processing techniques. Next, we used penalized logistic regression and correlation analyses to examine the influence of project and text features on fundraising project outcomes. Finally, we examined the influence of campaign description sentiment on crowdfunding success using Linguistic Inquiry and Word Count software. Results: Campaigns were significantly more likely to be successful if they featured a lower target amount (Goal amount, β=-1.949, z score=-82.767, P<.001) for fundraising, a higher number of previous donations, agency (vs individual) organizers, project pages containing updates, and project pages containing comments from readers. The results revealed an inverted U-shaped relationship between the length of the text and the amount of funds raised. In addition, more spelling mistakes negatively affected the funds raised (Number of spelling errors, β=-1.068, z score=-38.79, P<.001). Conclusions: Difficult-to-treat cancers and high-mortality cancers tend to trigger empathy from potential donors, which increases the funds raised. Gender differences were observed in the effects of emotional words in the text on the amount of funds raised. For cancers that typically occur in women, links between emotional words used and the amount of funds raised were weaker than for cancers typically occurring among men.
MeSH term(s)	Male ; Humans ; Female ; Crowdsourcing/methods ; Fund Raising/methods ; Neoplasms ; Empathy ; Software
Language	English
Publishing date	2023-03-03
Publishing country	Canada
Document type	Journal Article
ZDB-ID	2028830-X
ISSN	1438-8871 ; 1438-8871
ISSN (online)	1438-8871
ISSN	1438-8871
DOI	10.2196/44197
Database	MEDical Literature Analysis and Retrieval System OnLINE

Order via subito

Book ; Online: Pseudo-Hamiltonian system identification

Holmsen, Sigurd / Eidnes, Sølve / Riemer-Sørensen, Signe

2023

Abstract: Identifying the underlying dynamics of physical systems can be challenging when only provided with observational data. In this work, we consider systems that can be modelled as first-order ordinary differential equations. By assuming a certain pseudo- ... ...

Abstract	Identifying the underlying dynamics of physical systems can be challenging when only provided with observational data. In this work, we consider systems that can be modelled as first-order ordinary differential equations. By assuming a certain pseudo-Hamiltonian formulation, we are able to learn the analytic terms of internal dynamics even if the model is trained on data where the system is affected by unknown damping and external disturbances. In cases where it is difficult to find analytic terms for the disturbances, a hybrid model that uses a neural network to learn these can still accurately identify the dynamics of the system as if under ideal conditions. This makes the models applicable in some situations where other system identification models fail. Furthermore, we propose to use a fourth-order symmetric integration scheme in the loss function and avoid actual integration in the training, and demonstrate on varied examples how this leads to increased performance on noisy data. Comment: 33 pages, 21 figures, including the appendix; v2: restructured and modified the text, added Section 6
Keywords	Electrical Engineering and Systems Science - Systems and Control ; Computer Science - Machine Learning ; Mathematics - Dynamical Systems ; Mathematics - Numerical Analysis ; Primary: 34A55 ; 37M10 ; Secondary: 37J99
Subject code	000
Publishing date	2023-05-09
Publishing country	us
Document type	Book ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

Full text online

Full text

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: Perspectives on Aging-Related Preparation.

Sörensen, Silvia / Missell, Rachel L / Eustice-Corwin, Alexander / Otieno, Dorine A

Journal of elder policy

2022 Volume 1, Issue 2

Abstract: When older adults face age-related life challenges, anticipating what to expect and how to access potential coping strategies can both prevent and provide the possibility of easier recovery from crises. Aging-Related Preparation (ARP) is defined as the ... ...

Abstract	When older adults face age-related life challenges, anticipating what to expect and how to access potential coping strategies can both prevent and provide the possibility of easier recovery from crises. Aging-Related Preparation (ARP) is defined as the continuum of thoughts and activities about how to age well, often beginning with the awareness of age-related changes, or the anticipation of retirement, and concluding with specifying end-of-life wishes. In the current paper, we introduce the concept of ARP and related formulations regarding plans for aging well, describe both predictors and outcomes of ARP for several the domains of ARP, and consider the elements of ARP within the context of existing social policy. We conclude that ARP is determined by a variety of influences both intrinsic to the older person (e.g., personality, cognitive ability, beliefs about planning, problem-solving skills), linked to social class and education, as well as dependent on family structures, access to and knowledge of options, services, and local community resources, and social policy. We further provide evidence that ARP has positive effects in the domain of pre-retirement planning (for retirement adjustment), of preparation for future care (for emotional well-being), and of ACP (for a good death). However, other domains of ARP, including planning for leisure, housing, and social planning are under-researched. Finally, we discuss policy implications of the existing research.
Language	English
Publishing date	2022-02-16
Publishing country	United States
Document type	Journal Article
ISSN	2767-7451
ISSN (online)	2767-7451
DOI	10.18278/jep.1.2.7
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.

Article ; Online: Utilisation of musculoskeletal ultrasonography for the evaluation of septic arthritis in a patient presenting to the emergency department with fever during the era of COVID-19.

Perez, Jiodany / Sorensen, Stefani / Rosselli, Michael

BMJ case reports

2021 Volume 14, Issue 4

Abstract: Prompt recognition and treatment of septic arthritis are crucial to prevent significant morbidity and mortality in affected patients. During the current COVID-19 pandemic, anchoring bias may make an already challenging diagnosis like septic arthritis ... ...

Abstract	Prompt recognition and treatment of septic arthritis are crucial to prevent significant morbidity and mortality in affected patients. During the current COVID-19 pandemic, anchoring bias may make an already challenging diagnosis like septic arthritis more difficult to diagnose quickly and efficiently. Musculoskeletal (MSK) point of care ultrasonography (POCUS) is an imaging modality that can be used to quickly and efficiently obtain objective findings that may help a clinician establish the diagnosis of septic arthritis. We report a case where MSK POCUS was a key element in establishing the diagnosis of glenohumeral joint septic arthritis and subdeltoid septic bursitis for a patient that presented to the emergency department with a fever during the era of the COVID-19 pandemic.
MeSH term(s)	Aged ; Arthritis, Infectious/diagnostic imaging ; Arthritis, Infectious/therapy ; COVID-19 ; Emergency Service, Hospital ; Fever ; Humans ; Male ; Point-of-Care Testing ; Ultrasonography
Language	English
Publishing date	2021-04-13
Publishing country	England
Document type	Case Reports ; Journal Article
ISSN	1757-790X
ISSN (online)	1757-790X
DOI	10.1136/bcr-2021-242370
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

Full text online

More links

Kategorien

Inter-library loan at ZB MED

More links

Kategorien

Order via subito

Inter-library loan at ZB MED

More links

Kategorien

Order via subito

More links

Kategorien

Order via subito

More links

Kategorien

Order via subito

Inter-library loan at ZB MED

More links

Kategorien

Order via subito

More links

Kategorien

Order via subito

Full text online

More links

Kategorien

Inter-library loan at ZB MED

More links

Kategorien

Order via subito

Inter-library loan at ZB MED

More links

Kategorien

Order via subito

Inter-library loan at ZB MED