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  1. Article ; Online: A semi-quantitative histochemical method for assessment of biochemical responses to osmotic stress in Coffea arabica leaf disks.

    De Palma, Nicolás / Fett-Neto, Arthur Germano

    Protoplasma

    2024  

    Abstract: A simple method set for assessing biochemical changes associated with osmotic stress responses was developed using coffee (Coffea arabica L.) leaf disks. Stress was induced by polyethylene glycol (PEG) exposure. Quantitative evaluation of tissue ... ...

    Abstract A simple method set for assessing biochemical changes associated with osmotic stress responses was developed using coffee (Coffea arabica L.) leaf disks. Stress was induced by polyethylene glycol (PEG) exposure. Quantitative evaluation of tissue physiological stress parameters was carried out using analytical methods to validate the conversion of classic qualitative histochemical tests for localizing lipid peroxidation, hydrogen peroxide, and total xanthine alkaloids into semi-quantitative assays. Relative electrolyte leakage (EL%) and chlorophyll content (SPAD index) were also recorded. EL% levels of treated disks were higher than those of control ones, whereas SPAD indexes were comparable. Histochemical localization indicated that levels of lipid peroxidation, H
    Language English
    Publishing date 2024-03-11
    Publishing country Austria
    Document type Journal Article
    ZDB-ID 123809-7
    ISSN 1615-6102 ; 0033-183X
    ISSN (online) 1615-6102
    ISSN 0033-183X
    DOI 10.1007/s00709-024-01941-2
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  2. Article ; Online: Biochemical responses in leaf tissues of alkaloid producing Psychotria brachyceras under multiple stresses.

    De Palma, Nicolás / Yendo, Anna Carolina Alves / Vilasboa, Johnatan / Chacon, Daisy Sotero / Fett-Neto, Arthur Germano

    Journal of plant research

    2023  Volume 136, Issue 3, Page(s) 397–412

    Abstract: Under natural conditions plants are generally subjected to complex scenarios of combined or sequential environmental stresses. Among the various components of plant biochemistry modulated by abiotic variables, a pivotal role is played by antioxidant ... ...

    Abstract Under natural conditions plants are generally subjected to complex scenarios of combined or sequential environmental stresses. Among the various components of plant biochemistry modulated by abiotic variables, a pivotal role is played by antioxidant systems, including specialized metabolites and their interaction with central pathways. To help address this knowledge gap, a comparative analysis of metabolic changes in leaf tissues of the alkaloid accumulating plant Psychotria brachyceras Müll Arg. under individual, sequential, and combined stress conditions was carried out. Osmotic and heat stresses were evaluated. Protective systems (accumulation of the major antioxidant alkaloid brachycerine, proline, carotenoids, total soluble protein, and activity of the enzymes ascorbate peroxidase and superoxide dismutase) were measured in conjunction with stress indicators (total chlorophyll, ChA/ChB ratio, lipid peroxidation, H
    MeSH term(s) Antioxidants/metabolism ; Psychotria/chemistry ; Psychotria/metabolism ; Hydrogen Peroxide/metabolism ; Alkaloids/metabolism ; Carotenoids/analysis ; Carotenoids/metabolism ; Plant Leaves/metabolism ; Proline/analysis ; Proline/metabolism
    Chemical Substances Antioxidants ; Hydrogen Peroxide (BBX060AN9V) ; Alkaloids ; Carotenoids (36-88-4) ; Proline (9DLQ4CIU6V)
    Language English
    Publishing date 2023-02-21
    Publishing country Japan
    Document type Journal Article
    ZDB-ID 2077362-6
    ISSN 1618-0860 ; 0918-9440
    ISSN (online) 1618-0860
    ISSN 0918-9440
    DOI 10.1007/s10265-023-01441-z
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  3. Book ; Online: Minority report detection in refugee-authored community-driven journalism using RBMs

    Rakova, Bogdana / DePalma, Nick

    2019  

    Abstract: Our work seeks to gather and distribute sensitive information from refugee settlements to stakeholders to help shape policy and help guide action networks. In this paper, we propose the following 1) a method of data collection through stakeholder ... ...

    Abstract Our work seeks to gather and distribute sensitive information from refugee settlements to stakeholders to help shape policy and help guide action networks. In this paper, we propose the following 1) a method of data collection through stakeholder organizations experienced in working with displaced and refugee communities, 2) a method of topic modeling based on Deep Boltzmann Machines that identifies topics and issues of interest within the population, to help enable mapping of human rights violations, and 3) a secondary analysis component that will use the probability of fit to isolate minority reports within these stories using anomaly detection techniques.

    Comment: 5 pages, 2 figures, In the Proceedings of the AI for Social Good NeurIPS 2018 Workshop
    Keywords Computer Science - Computers and Society
    Publishing date 2019-12-10
    Publishing country us
    Document type Book ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  4. Book ; Online: Towards learning through robotic interaction alone

    DePalma, Nick / Breazeal, Cynthia

    the joint guided search task

    2016  

    Abstract: This work proposes a biologically inspired approach that focuses on attention systems that are able to inhibit or constrain what is relevant at any one moment. We propose a radically new approach to making progress in human-robot joint attention called " ... ...

    Abstract This work proposes a biologically inspired approach that focuses on attention systems that are able to inhibit or constrain what is relevant at any one moment. We propose a radically new approach to making progress in human-robot joint attention called "the joint guided search task". Visual guided search is the activity of the eye as it saccades from position to position recognizing objects in each fixation location until the target object is found. Our research focuses on the exchange of nonverbal behavior toward changing the fixation location while also performing object recognition. Our main goal is a very ambitious goal of sharing attention through probing synthetic foreground maps (i.e. what is being considered by the robotic agent) and the biological attention system of the human.

    Comment: 5th International Symposium on New Frontiers in Human-Robot Interaction 2016 (arXiv:1602.05456)
    Keywords Computer Science - Robotics ; Computer Science - Human-Computer Interaction
    Subject code 629
    Publishing date 2016-06-08
    Publishing country us
    Document type Book ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  5. Book ; Online: Network in Disaggregated Datacenters

    Ekane, Brice / Pipereau, Yohan / Teabe, Boris / Tchana, Alain / Thomas, Gael / de palma, Noel / Hagimont, Daniel

    2021  

    Abstract: Nowadays, datacenters lean on a computer-centric approach based on monolithic servers which include all necessary hardware resources (mainly CPU, RAM, network and disks) to run applications. Such an architecture comes with two main limitations: (1) ... ...

    Abstract Nowadays, datacenters lean on a computer-centric approach based on monolithic servers which include all necessary hardware resources (mainly CPU, RAM, network and disks) to run applications. Such an architecture comes with two main limitations: (1) difficulty to achieve full resource utilization and (2) coarse granularity for hardware maintenance. Recently, many works investigated a resource-centric approach called disaggregated architecture where the datacenter is composed of self-content resource boards interconnected using fast interconnection technologies, each resource board including instances of one resource type. The resource-centric architecture allows each resource to be managed (maintenance, allocation) independently. LegoOS is the first work which studied the implications of disaggregation on the operating system, proposing to disaggregate the operating system itself. They demonstrated the suitability of this approach, considering mainly CPU and RAM resources. However, they didn't study the implication of disaggregation on network resources. We reproduced a LegoOS infrastructure and extended it to support disaggregated networking. We show that networking can be disaggregated following the same principles, and that classical networking optimizations such as DMA, DDIO or loopback can be reproduced in such an environment. Our evaluations show the viability of the approach and the potential of future disaggregated infrastructures.

    Comment: 10 pages, 8 figures
    Keywords Computer Science - Distributed ; Parallel ; and Cluster Computing ; Computer Science - Networking and Internet Architecture
    Subject code 303
    Publishing date 2021-03-15
    Publishing country us
    Document type Book ; Online
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  6. Article: Scores of alcoholics on the Sixteen Personality Factor Questionnaire.

    DE PALMA, N / CLAYTON, H D

    Journal of clinical psychology

    2003  Volume 14, Issue 4, Page(s) 390–392

    MeSH term(s) Alcoholics ; Alcoholism/psychology ; Humans ; Personality ; Psychological Tests ; Surveys and Questionnaires
    Language English
    Publishing date 2003-07-08
    Publishing country United States
    Document type Journal Article
    ZDB-ID 219160-x
    ISSN 1097-4679 ; 0021-9762
    ISSN (online) 1097-4679
    ISSN 0021-9762
    DOI 10.1002/1097-4679(195810)14:4<390::aid-jclp2270140414>3.0.co;2-h
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    Ui I Zs.241: Show issues Location:
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  7. Book ; Online: Proceedings of the AI-HRI Symposium at AAAI-FSS 2019

    Hart, Justin W. / DePalma, Nick / Freedman, Richard G. / Iocchi, Luca / Leonetti, Matteo / Lohan, Katrin / Mead, Ross / Senft, Emmanuel / Sinapov, Jivko / Topp, Elin A. / Williams, Tom

    2019  

    Abstract: The past few years have seen rapid progress in the development of service robots. Universities and companies alike have launched major research efforts toward the deployment of ambitious systems designed to aid human operators performing a variety of ... ...

    Abstract The past few years have seen rapid progress in the development of service robots. Universities and companies alike have launched major research efforts toward the deployment of ambitious systems designed to aid human operators performing a variety of tasks. These robots are intended to make those who may otherwise need to live in assisted care facilities more independent, to help workers perform their jobs, or simply to make life more convenient. Service robots provide a powerful platform on which to study Artificial Intelligence (AI) and Human-Robot Interaction (HRI) in the real world. Research sitting at the intersection of AI and HRI is crucial to the success of service robots if they are to fulfill their mission. This symposium seeks to highlight research enabling robots to effectively interact with people autonomously while modeling, planning, and reasoning about the environment that the robot operates in and the tasks that it must perform. AI-HRI deals with the challenge of interacting with humans in environments that are relatively unstructured or which are structured around people rather than machines, as well as the possibility that the robot may need to interact naturally with people rather than through teach pendants, programming, or similar interfaces.

    Comment: HTML file with clickable links to papers - All papers have been reviewed by at least two reviewers in a single blind fashion - Symposium website: https://ai-hri.github.io/2019/
    Keywords Computer Science - Robotics
    Subject code 629
    Publishing date 2019-09-10
    Publishing country us
    Document type Book ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  8. Article ; Online: FIRST, DO NO HARM: A Response to "Oral Alimentation in Neonatal and Adult Populations Requiring High-Flow Oxygen via Nasal Cannula".

    Dodrill, Pamela / Gosa, Memorie / Thoyre, Suzanne / Shaker, Catherine / Pados, Britt / Park, Jinhee / DePalma, Nicole / Hirst, Keith / Larson, Kara / Perez, Jennifer / Hernandez, Kayla

    Dysphagia

    2016  Volume 31, Issue 6, Page(s) 781–782

    MeSH term(s) Adult ; Cannula ; Continuous Positive Airway Pressure ; Humans ; Infant, Newborn ; Oxygen
    Chemical Substances Oxygen (S88TT14065)
    Language English
    Publishing date 2016-07-19
    Publishing country United States
    Document type Letter ; Comment
    ZDB-ID 632764-3
    ISSN 1432-0460 ; 0179-051X
    ISSN (online) 1432-0460
    ISSN 0179-051X
    DOI 10.1007/s00455-016-9722-x
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    Zs.A 2130: Show issues Location:
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  9. Article: Neurolectic correlates of nonsteroidal analgesia.

    O'Connor, S / Tasman, A / DePalma, N / Zaccheo, S

    NIDA research monograph

    1989  Volume 95, Page(s) 397–398

    MeSH term(s) Administration, Oral ; Clinical Trials as Topic ; Dental Pulp/innervation ; Double-Blind Method ; Electroencephalography/drug effects ; Evoked Potentials, Somatosensory/drug effects ; Humans ; Ibuprofen/administration & dosage ; Nociceptors/drug effects ; Pain Measurement
    Chemical Substances Ibuprofen (WK2XYI10QM)
    Language English
    Publishing date 1989
    Publishing country United States
    Document type Clinical Trial ; Journal Article ; Research Support, Non-U.S. Gov't
    ISSN 1046-9516
    ISSN 1046-9516
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  10. Article: P3 amplitudes in two distinct tasks are decreased in young men with a history of paternal alcoholism.

    O'Connor, S / Hesselbrock, V / Tasman, A / DePalma, N

    Alcohol (Fayetteville, N.Y.)

    1987  Volume 4, Issue 4, Page(s) 323–330

    Abstract: Visual event-related potentials (ERPs) were obtained in two groups of young adult male subjects: One group (N = 24) considered to be at high risk for alcoholism due to paternal alcoholism and the second group (N = 26) with no family history of alcoholism. ...

    Abstract Visual event-related potentials (ERPs) were obtained in two groups of young adult male subjects: One group (N = 24) considered to be at high risk for alcoholism due to paternal alcoholism and the second group (N = 26) with no family history of alcoholism. Results presented here were obtained during a baseline (no drug) condition. The ERP tasks both were target detection paradigms, but differed in several respects. One paradigm involved continuous participation in a distracting tracking task, but used an easily interpreted target stimulus. The second task involved no distractions, but entailed more complex stimuli. Both paradigms utilized level of task difficulty as an experimental variable. The results from both tasks were quite similar and demonstrated significantly lower ERP amplitudes in the high risk compared to the low risk group. Reaction times to target stimuli did not discriminate group membership, but were related to perceived task difficulty. Task difficulty was not a useful variable in discriminating group membership.
    MeSH term(s) Adult ; Alcoholism/genetics ; Electroencephalography ; Evoked Potentials, Visual ; Humans ; Male ; Psychomotor Performance ; Reaction Time ; Risk
    Language English
    Publishing date 1987-07
    Publishing country United States
    Document type Journal Article
    ZDB-ID 605912-0
    ISSN 0741-8329
    ISSN 0741-8329
    DOI 10.1016/0741-8329(87)90030-9
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