keyword
MENU ▼
Read by QxMD icon Read
search

Complex adaptive network

keyword
https://www.readbyqxmd.com/read/29322101/a-novel-individual-level-morphological-brain-networks-constructing-method-and-its-evaluation-in-pet-and-mr-images
#1
Jiehui Jiang, Hucheng Zhou, Huoqiang Duan, Xin Liu, Chuantao Zuo, Zhemin Huang, Zhihua Yu, Zhuangzhi Yan
Mapping the human brain is one of the great scientific challenges of the 21st century. Brain network analysis is an effective technique based on graph theory that is widely used to investigate network patterns in the human brain. Currently, mapping an individual brain network using a single image has been a hotspot in the field of brain science; techniques, such as the Kullback-Leibler (KL) method, have applications in structural Magnetic Resonance (MR) imaging. However, maintaining an image's intensity, shape, texture and gradient information during feature extraction is very challenging...
December 2017: Heliyon
https://www.readbyqxmd.com/read/29317273/mitochondrial-network-responses-in-oxidative-physiology-and-disease
#2
REVIEW
Young-Mi Go, Jolyn Fernandes, Xin Hu, Karan Uppal, Dean P Jones
Mitochondrial activities are linked directly or indirectly to all cellular functions in aerobic eukaryotes. Omics methods enable new approaches to study functional organization of mitochondria and their adaptive and maladaptive network responses to bioenergetic fuels, physiologic demands, environmental challenges and aging. In this review, we consider mitochondria collectively within a multicellular organism as a macroscale "mitochondriome", functioning to organize bioenergetics and metabolism as an organism utilizes environmental resources and protects against environmental threats...
January 6, 2018: Free Radical Biology & Medicine
https://www.readbyqxmd.com/read/29299249/mitochondrial-dna-of-pre-last-glacial-maximum-red-deer-from-nw-spain-suggests-a-more-complex-phylogeographical-history-for-the-species
#3
Alba Rey-Iglesia, Aurora Grandal-d'Anglade, Paula F Campos, Anders Johannes Hansen
The major climatic oscillations that characterized the Quaternary had a great influence on the evolution and distribution of several species. During cold periods, the distribution of temperate-adapted species became fragmented with many surviving in southern refugia (Iberian, Italian, and Balkan Peninsulas). Red deer was one of the species that contracted its original range to southern refugia. Currently, two main lineages have been described for the species: western and eastern. We have analyzed fossils pre-dating the last glacial maximum (LGM) from Liñares cave (NW Spain) that belongs to the peripheral range of the western clade, and fossils from the Danish Holocene belonging to the central part of the same clade...
December 2017: Ecology and Evolution
https://www.readbyqxmd.com/read/29299241/r-k-like-trade-off-and-voltinism-discreteness-the-implication-to-allochronic-speciation-in-the-fall-webworm-hyphantria-cunea-complex-arctiidae
#4
Fan Yang, Eriko Kawabata, Muhammad Tufail, John J Brown, Makio Takeda
North America has distinct types of Hyphantria moths (Arctiidae) characterized by red (RD)- and black (BL)-headed larvae, of which the taxonomic status is unresolved. Genetic divergence of 26 populations, based on 710 bp of the mtCOI sequence, showed two phylogenetic lineages, which could not be connected in the haplotype network with 95% confidence. The two lineages are separated by 3.1% sequence divergence and should be considered for full species status. The estimated split occurred 1.2-1.6 million years ago...
December 2017: Ecology and Evolution
https://www.readbyqxmd.com/read/29297288/deep-learning-architectures-for-multi-label-classification-of-intelligent-health-risk-prediction
#5
Andrew Maxwell, Runzhi Li, Bei Yang, Heng Weng, Aihua Ou, Huixiao Hong, Zhaoxian Zhou, Ping Gong, Chaoyang Zhang
BACKGROUND: Multi-label classification of data remains to be a challenging problem. Because of the complexity of the data, it is sometimes difficult to infer information about classes that are not mutually exclusive. For medical data, patients could have symptoms of multiple different diseases at the same time and it is important to develop tools that help to identify problems early. Intelligent health risk prediction models built with deep learning architectures offer a powerful tool for physicians to identify patterns in patient data that indicate risks associated with certain types of chronic diseases...
December 28, 2017: BMC Bioinformatics
https://www.readbyqxmd.com/read/29291049/convergence-and-divergence-in-gesture-repertoires-as-an-adaptive-mechanism-for-social-bonding-in-primates
#6
Anna Ilona Roberts, Sam George Bradley Roberts
A key challenge for primates living in large, stable social groups is managing social relationships. Chimpanzee gestures may act as a time-efficient social bonding mechanism, and the presence (homogeneity) and absence (heterogeneity) of overlap in repertoires in particular may play an important role in social bonding. However, how homogeneity and heterogeneity in the gestural repertoire of primates relate to social interaction is poorly understood. We used social network analysis and generalized linear mixed modelling to examine this question in wild chimpanzees...
November 2017: Royal Society Open Science
https://www.readbyqxmd.com/read/29290169/evaluating-oncology-value-based-frameworks-in-the-u-s-marketplace-and-challenges-in-real-world-application-a-multiple-myeloma-test-case
#7
Laurence M Djatche, Joseph A Goble, Grace Chun, Stefan Varga
BACKGROUND: With the continuous rise in costs for oncology drugs, the American Society of Clinical Oncology (ASCO), the Institute for Clinical and Economic Review (ICER), the Memorial Sloan Kettering Cancer Center's Drug Abacus (DrugAbacus), and the National Comprehensive Cancer Network (NCCN) have developed value-based frameworks (VBFs) to assist stakeholders in formulary and treatment decision-making processes. Since emerging VBFs have the potential to affect available treatment options for patients, it is important to understand the differences associated with these VBFs within various therapeutic areas...
January 2018: Journal of Managed Care & Specialty Pharmacy
https://www.readbyqxmd.com/read/29290018/beyond-icom8-perspectives-on-advances-in-mycorrhizal-research-from-2015-to-2017
#8
Catherine A Gehring, Nancy C Johnson
This report reviews important advances in mycorrhizal research that occurred during the past 2 years. We highlight major advancements both within and across levels of biological organization and describe areas where greater integration has led to unique insights. Particularly active areas of research include exploration of the mechanisms underpinning the development of the mycorrhizal symbiosis, the mycorrhizal microbiome, comparisons among types of mycorrhizas from molecular to ecosystem scales, the extent and function of mycorrhizal networks and enhanced understanding of the role of mycorrhizas in carbon dynamics from local to global scales...
December 30, 2017: Mycorrhiza
https://www.readbyqxmd.com/read/29283398/application-of-a-multimedia-service-and-resource-management-architecture-for-fault-diagnosis
#9
Alfonso Castro, Andrés A Sedano, Fco Javier García, Eduardo Villoslada, Víctor A Villagrá
Nowadays, the complexity of global video products has substantially increased. They are composed of several associated services whose functionalities need to adapt across heterogeneous networks with different technologies and administrative domains. Each of these domains has different operational procedures; therefore, the comprehensive management of multi-domain services presents serious challenges. This paper discusses an approach to service management linking fault diagnosis system and Business Processes for Telefónica's global video service...
December 28, 2017: Sensors
https://www.readbyqxmd.com/read/29282162/integrated-regulatory-network-reveals-novel-candidate-regulators-in-the-development-of-negative-energy-balance-in-cattle
#10
Z Mozduri, M R Bakhtiarizadeh, A Salehi
Negative energy balance (NEB) is an altered metabolic state in modern high-yielding dairy cows. This metabolic state occurs in the early postpartum period when energy demands for milk production and maintenance exceed that of energy intake. Negative energy balance or poor adaptation to this metabolic state has important effects on the liver and can lead to metabolic disorders and reduced fertility. The roles of regulatory factors, including transcription factors (TFs) and micro RNAs (miRNAs) have often been separately studied for evaluating of NEB...
December 28, 2017: Animal: An International Journal of Animal Bioscience
https://www.readbyqxmd.com/read/29278731/a-test-of-the-adaptive-network-explanation-of-functional-disorders-using-a-machine-learning-analysis-of-symptoms
#11
Christos Melidis, Susan L Denham, Michael E Hyland
The classification and etiology of functional disorders is controversial. Evidence supports both psychological and biological (disease) models that show, respectively, that functional disorders should be classified as one (bodily distress syndrome) and many (e.g., irritable bowel syndrome (IBS), fibromyalgia syndrome (FMS), and chronic fatigue syndrome (CFS)). Two network models (symptom network and adaptive network) can explain the specificity and covariation of symptomatology, but only the adaptive network model can explain the covariation of the somatic symptoms of functional disorders...
December 23, 2017: Bio Systems
https://www.readbyqxmd.com/read/29276803/projections-of-temperature-related-excess-mortality-under-climate-change-scenarios
#12
Antonio Gasparrini, Yuming Guo, Francesco Sera, Ana Maria Vicedo-Cabrera, Veronika Huber, Shilu Tong, Micheline de Sousa Zanotti Stagliorio Coelho, Paulo Hilario Nascimento Saldiva, Eric Lavigne, Patricia Matus Correa, Nicolas Valdes Ortega, Haidong Kan, Samuel Osorio, Jan Kyselý, Aleš Urban, Jouni J K Jaakkola, Niilo R I Ryti, Mathilde Pascal, Patrick G Goodman, Ariana Zeka, Paola Michelozzi, Matteo Scortichini, Masahiro Hashizume, Yasushi Honda, Magali Hurtado-Diaz, Julio Cesar Cruz, Xerxes Seposo, Ho Kim, Aurelio Tobias, Carmen Iñiguez, Bertil Forsberg, Daniel Oudin Åström, Martina S Ragettli, Yue Leon Guo, Chang-Fu Wu, Antonella Zanobetti, Joel Schwartz, Michelle L Bell, Tran Ngoc Dang, Dung Do Van, Clare Heaviside, Sotiris Vardoulakis, Shakoor Hajat, Andy Haines, Ben Armstrong
Background: Climate change can directly affect human health by varying exposure to non-optimal outdoor temperature. However, evidence on this direct impact at a global scale is limited, mainly due to issues in modelling and projecting complex and highly heterogeneous epidemiological relationships across different populations and climates. Methods: We collected observed daily time series of mean temperature and mortality counts for all causes or non-external causes only, in periods ranging from Jan 1, 1984, to Dec 31, 2015, from various locations across the globe through the Multi-Country Multi-City Collaborative Research Network...
December 2017: Lancet. Planetary Health
https://www.readbyqxmd.com/read/29273475/plectin-controls-biliary-tree-architecture-and-stability-in-cholestasis
#13
Marketa Jirouskova, Katerina Nepomucka, Gizem Oyman-Eyrilmez, Alzbeta Kalendova, Helena Havelkova, Lenka Sarnova, Karel Chalupsky, Bjoern Schuster, Oldrich Benada, Petra Miksatkova, Martin Kuchar, Ondrej Fabian, Radislav Sedlacek, Gerhard Wiche, Martin Gregor
BACKGROUND & AIMS: Plectin, a highly versatile cytolinker protein, controls intermediate filament (IF) cytoarchitecture and cellular stress response. In the present study, we investigate the role of plectin in the liver under basal conditions and in experimental cholestasis. METHODS: We generated liver-specific Plectin knockout (PleΔalb) mice and analyzed them using two cholestatic liver injury models: bile duct ligation (BDL) and 3,5-diethoxycarbonyl-1,4-dihydrocollidine (DDC) feeding...
December 19, 2017: Journal of Hepatology
https://www.readbyqxmd.com/read/29261493/-mathematical-modeling-an-essential-tool-for-the-study-of-therapeutic-targeting-in-solid-tumors
#14
Zuzana Saidak, Anne-Sophie Giacobbi, Mony Chenda Morisse, Youcef Mammeri, Antoine Galmiche
Recent progress in biology has made the study of the medical treatment of cancer more effective, but it has also revealed the large complexity of carcinogenesis and cell signaling. For many types of cancer, several therapeutic targets are known and in some cases drugs against these targets exist. Unfortunately, the target proteins often work in networks, resulting in functional adaptation and the development of resilience/resistance to medical treatment. The use of mathematical modeling makes it possible to carry out system-level analyses for improved study of therapeutic targeting in solid tumours...
December 2017: Médecine Sciences: M/S
https://www.readbyqxmd.com/read/29261157/a-large-scale-multi-hop-localization-algorithm-based-on-regularized-extreme-learning-for-wireless-networks
#15
Wei Zheng, Xiaoyong Yan, Wei Zhao, Chengshan Qian
A novel large-scale multi-hop localization algorithm based on regularized extreme learning is proposed in this paper. The large-scale multi-hop localization problem is formulated as a learning problem. Unlike other similar localization algorithms, the proposed algorithm overcomes the shortcoming of the traditional algorithms which are only applicable to an isotropic network, therefore has a strong adaptability to the complex deployment environment. The proposed algorithm is composed of three stages: data acquisition, modeling and location estimation...
December 20, 2017: Sensors
https://www.readbyqxmd.com/read/29242163/changes-of-dna-topology-affect-the-global-transcription-landscape-and-allow-rapid-growth-of-a-bacillus-subtilis-lacking-carbon-catabolite-repression
#16
Daniel R Reuß, Hermann Rath, Andrea Thürmer, Martin Benda, Rolf Daniel, Uwe Völker, Ulrike Mäder, Fabian M Commichau, Jörg Stülke
Bacteria are able to prioritize preferred carbon sources from complex mixtures. This is achieved by the regulatory phenomenon of carbon catabolite repression. To allow the simultaneous utilization of multiple carbon sources and to prevent the time-consuming adaptation to each individual nutrient in biotechnological applications, mutants lacking carbon catabolite repression can be used. However, such mutants often exhibit pleiotropic growth defects. We have isolated and characterized mutations that overcome the growth defect of Bacillus subtilis ccpA mutants lacking the major regulator of catabolite repression, in particular their glutamate auxotrophy...
December 11, 2017: Metabolic Engineering
https://www.readbyqxmd.com/read/29238347/langerhans-cells-programmed-by-the-epidermis
#17
REVIEW
Kalum Clayton, Andres F Vallejo, James Davies, Sofia Sirvent, Marta E Polak
Langerhans cells (LCs) reside in the epidermis as a dense network of immune system sentinels. These cells determine the appropriate adaptive immune response (inflammation or tolerance) by interpreting the microenvironmental context in which they encounter foreign substances. In a normal physiological, "non-dangerous" situation, LCs coordinate a continuous state of immune tolerance, preventing unnecessary and harmful immune activation. Conversely, when they sense a danger signal, for example during infection or when the physical integrity of skin has been compromised as a result of a trauma, they instruct T lymphocytes of the adaptive immune system to mount efficient effector responses...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/29236065/performance-analysis-of-cluster-formation-in-wireless-sensor-networks
#18
Edgar Romo Montiel, Mario E Rivero-Angeles, Gerardo Rubino, Heron Molina-Lozano, Rolando Menchaca-Mendez, Ricardo Menchaca-Mendez
Clustered-based wireless sensor networks have been extensively used in the literature in order to achieve considerable energy consumption reductions. However, two aspects of such systems have been largely overlooked. Namely, the transmission probability used during the cluster formation phase and the way in which cluster heads are selected. Both of these issues have an important impact on the performance of the system. For the former, it is common to consider that sensor nodes in a clustered-based Wireless Sensor Network (WSN) use a fixed transmission probability to send control data in order to build the clusters...
December 13, 2017: Sensors
https://www.readbyqxmd.com/read/29235170/scaling-up-integrated-early-childhood-development-programs-lessons-from-four-countries
#19
R Pérez-Escamilla, V Cavallera, M Tomlinson, T Dua
BACKGROUND: There is still limited knowledge regarding the translation of early child development (ECD) knowledge into effective policies and large-scale programmes. A variety of frameworks that outline the key steps in scaling up exist, but we argue that taking a complex adaptive systems (CAS) approach assists in understanding the complex, dynamic processes that result in programmes being taken to scale. OBJECTIVES: The objective of this study is to examine the process of scaling up four major country-level ECD programmes through the application of a CAS framework...
January 2018: Child: Care, Health and Development
https://www.readbyqxmd.com/read/29234067/the-human-blood-nerve-barrier-transcriptome
#20
Steven P Palladino, E Scott Helton, Preti Jain, Chaoling Dong, Michael R Crowley, David K Crossman, Eroboghene E Ubogu
The blood-nerve barrier (BNB), formed by tight junction-forming microvessels within peripheral nerve endoneurium, exists to regulate its internal microenvironment essential for effective axonal signal transduction. Relatively little is known about the unique human BNB molecular composition. Such knowledge is crucial to comprehend the relationships between the systemic circulation and peripheral nerves in health, adaptations to intrinsic or extrinsic perturbations and alterations that may result in disease. We performed RNA-sequencing on cultured early- and late-passage adult primary human endoneurial endothelial cells and laser-capture microdissected endoneurial microvessels from four cryopreserved normal adult human sural nerves referenced to the Genome Reference Consortium Human Reference 37 genome browser, using predefined criteria guided by known transcript or protein expression in vitro and in situ...
December 12, 2017: Scientific Reports
keyword
keyword
103460
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"