Results 1 to 10 of about 133 (82)

One characteristic problem for the general hyperbolic differential equation of the third order with nonmultiple characteristics

open access: greenVestnik Samarskogo Gosudarstvennogo Tehničeskogo Universiteta. Seriâ: Fiziko-Matematičeskie Nauki, 2012
In the paper we consider the well-posed characteristic problem for the general hyperbolic differential equation of the third order with nonmultiple characteristics. The solution of this problem is constructed in an explicit form. The illustrative example
Julia O Yakovleva
doaj   +6 more sources

The analogue of D'Alembert formula for hyperbolic differential equation of the third order with nonmultiple characteristics

open access: greenVestnik Samarskogo Gosudarstvennogo Tehničeskogo Universiteta. Seriâ: Fiziko-Matematičeskie Nauki, 2012
The Cauchy problem for the third order hyperbolic differential equation with nonmultiple characteristics is considered. The analogue of D'Alembert formula is obtained as a solution that allows describing the propagation of initial displacement, initial ...
J. O. Yakovleva
doaj   +6 more sources

The characteristic problem for the system of the general hyperbolic differential equations of the third order with nonmultiple characteristics

open access: closedVestnik Samarskogo Gosudarstvennogo Tehničeskogo Universiteta. Seriâ: Fiziko-Matematičeskie Nauki, 2013
We consider the well-posed characteristic problem for the system of the general hyperbolic differential equations of the third order with nonmultiple characteristics. The solution of this problem is constructed in an explicit form.
Aleksandr Anatol'evich Andreev   +1 more
doaj   +3 more sources

Multiple percutaneous coronary interventions worsen outcomes for subsequent surgical correction of chronic ischemic mitral regurgitationCentral MessagePerspective [PDF]

open access: yesJTCVS Open, 2021
Objective: We investigated whether or not a history of multiple percutaneous coronary interventions (PCIs) is associated with clinical outcomes after surgery for ischemic mitral regurgitation. Methods: A total of 309 patients with chronic ischemic mitral
Satoshi Kainuma, MD, PhD   +33 more
doaj   +2 more sources

Accuracy and Reliability of Chatbot Responses to Physician Questions. [PDF]

open access: yesJAMA Netw Open, 2023
IMPORTANCE: Natural language processing tools, such as ChatGPT (generative pretrained transformer, hereafter referred to as chatbot), have the potential to radically enhance the accessibility of medical information for health professionals and patients ...
Goodman RS   +34 more
europepmc   +3 more sources

The Cauchy problem for a general hyperbolic differential equation of the n-th order with the nonmultiple characteristics

open access: yesVestnik Samarskogo Gosudarstvennogo Tehničeskogo Universiteta. Seriâ: Fiziko-Matematičeskie Nauki, 2016
In the paper the problem of Cauchy is considered for the hyperbolic differential equation of the n-th order with the nonmultiple characteristics. The Cauchy problem is considered for the hyperbolic differential equation of the third order with the ...
Aleksandr A Andreev, Julia O Yakovleva
doaj   +2 more sources

Cauchy problem for the system of the general hyperbolic differential equations of the forth order with nonmultiple characteristics

open access: yesVestnik Samarskogo Gosudarstvennogo Tehničeskogo Universiteta. Seriâ: Fiziko-Matematičeskie Nauki, 2014
We consider the Cauchy problem for the hyperbolic differential equation of the forth order with nonmultiple characteristics. We generalize this problem from the similar Cauchy problem for the hyperbolic differential equation of the third order with ...
Aleksandr A Andreev, Julia O Yakovleva
doaj   +3 more sources

The Cauchy problem for a system of the hyperbolic differential equations of the n-th order with the nonmultiple characteristics

open access: yesVestnik Samarskogo Gosudarstvennogo Tehničeskogo Universiteta. Seriâ: Fiziko-Matematičeskie Nauki, 2017
In the paper the Cauchy problem is considered for the hyperbolic differential equation of the n-th order with the nonmultiple characteristics. The regular solution of the Cauchy problem for the hyperbolic differential equation of the n-th order with the ...
Aleksandr A Andreev, Julia O Yakovleva
doaj   +2 more sources

A prospective examination of the interpersonal-psychological theory of suicidal behavior among psychiatric adolescent inpatients. [PDF]

open access: yesSuicide Life Threat Behav, 2015
Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/111102/1/sltb12125 ...
Czyz EK, Berona J, King CA.
europepmc   +2 more sources

Relationships between land tenure insecurity, agrobiodiversity, and dietary diversity of women of reproductive age: Evidence from Acholi and Teso subregions of Uganda. [PDF]

open access: yesMatern Child Nutr, 2020
Land tenure security is central to food security of rural agricultural-dependent communities, but there is limited evidence linking the state of agrobiodiversity to perception of land tenure security and access to and quality of food eaten.
Ekesa B   +4 more
europepmc   +3 more sources

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