scholarly journals Are There Multiple Paths to Delinquency?

1991 ◽  
Vol 82 (1) ◽  
pp. 83 ◽  
Author(s):  
Denver Youth Survey ◽  
David Huizinga ◽  
Finn-Aage Esbensen ◽  
Anne Wylie Weiher
Keyword(s):  
Multiple Paths

Approximated Variance of Inbreeding Coefficient due to Multiple Paths in a Pedigree

2000 ◽  
Vol 71 (4) ◽  
pp. 348-352
Author(s):  
Takuro OIKAWA ◽  
Tetsuo KUNIEDA ◽  
Katsunori SATO
Keyword(s):  
Inbreeding Coefficient ◽  
Multiple Paths

Probabilistic and Fuzzy based Efficient Routing Protocol for Mobile Ad Hoc Networks

2020 ◽  
Vol 13 (3) ◽  
pp. 422-432
Author(s):  
Madan Mohan Agarwal ◽  
Hemraj Saini ◽  
Mahesh Chandra Govil
Keyword(s):  
Fuzzy Logic ◽  
Energy Consumption ◽  
Routing Protocol ◽  
Queue Length ◽  
Ad Hoc ◽  
Fuzzy Controller ◽  
Second Phase ◽  
Path Distance ◽  
Fixed Threshold ◽  
Multiple Paths

Background: The performance of the network protocol depends on number of parameters like re-broadcast probability, mobility, the distance between source and destination, hop count, queue length and residual energy, etc. Objective: In this paper, a new energy efficient routing protocol IAOMDV-PF is developed based on the fixed threshold re-broadcast probability determination and best route selection using fuzzy logic from multiple routes. Methods: In the first phase, the proposed protocol determines fixed threshold rebroadcast probability. It is used for discovering multiple paths between the source and the destination. The threshold probability at each node decides the rebroadcasting of received control packets to its neighbors thereby reducing routing overheads and energy consumption. The multiple paths list received from the first phase and supply to the second phase that is the fuzzy controller selects the best path. This fuzzy controller has been named as Fuzzy Best Route Selector (FBRS). FBRS determines the best path based on function of queue length, the distance between nodes and mobility of nodes. Results: Comparative analysis of the proposed protocol named as "Improved Ad-Hoc On-demand Multiple Path Distance Vector based on Probabilistic and Fuzzy logic" (IAOMDV-PF) shows that it is more efficient in terms of overheads and energy consumption. Conclusion: The proposed protocol reduced energy consumption by about 61%, 58% and 30% with respect to FF-AOMDV, IAOMDV-F and FPAOMDV routing protocols, respectively. The proposed protocol has been simulated and analyzed by using NS-2.

A MPTCP Path Selection Strategy Based on Improved Grey Relational Analysis

2013 ◽  
Vol 401-403 ◽  
pp. 1766-1771 ◽  
Author(s):  
Lan Kou ◽  
Si Rui Chen ◽  
Rui Wang
Keyword(s):  
Transmission Control Protocol ◽  
Path Selection ◽  
Transport Layer ◽  
Reference Sequence ◽  
Gray Relational Analysis ◽  
Selection Strategy ◽  
Relational Analysis ◽  
Multiple Paths ◽  
End To End ◽  
Grey Relational

Multipath Transmission Control Protocol (MPTCP), a transport layer protocol, proposed by the IETF working group in 2009, can provide multipath communication end to end. It also can improve the utilization of network resources and network transmission reliability. However, that how to select multiple paths to improve the end to end overall throughput, and how to avoid the throughput declining by the performance difference, become the focus of this study. We propose a path selection strategy based on improved gray relational analysis, and set the optimal values of the QoS parameters for the selected paths as the reference sequence. According to the value of improved grey relational degree (IGRD) which is compared with reference sequence, we select the paths with better performance, smaller difference for transmission.

scholarly journals An adaptive framework for QoS routing through multiple paths in ad hoc wireless networks

2003 ◽  
Vol 63 (2) ◽  
pp. 141-153 ◽  
Author(s):  
S.K. Das ◽  
A. Mukherjee ◽  
S. Bandyopadhyay ◽  
D. Saha ◽  
K. Paul
Keyword(s):  
Wireless Networks ◽  
Ad Hoc ◽  
Ad Hoc Wireless Networks ◽  
Qos Routing ◽  
Multiple Paths ◽  
Adaptive Framework

Corresponding about death: Analyzing letters from patients with cancer to medical students.

2021 ◽  
Vol 39 (15_suppl) ◽  
pp. 11021-11021
Author(s):  
Tianyi Zhang ◽  
Mekaleya Tilahun ◽  
Cynthia Perlis ◽  
Sam Brondfield
Keyword(s):  
Medical Students ◽  
End Of Life ◽  
Death And Dying ◽  
Severe Illness ◽  
Clinical Environment ◽  
Patients With Cancer ◽  
Coping Process ◽  
Award Winning ◽  
Multiple Paths ◽  
One Year

11021 Background: Clinicians frequently discuss death and dying with patients who have cancer. However, the doctor-patient hierarchy and the unfamiliar clinical environment may prevent these patients from discussing death and dying authentically. Patients may feel more comfortable expressing themselves when given the time and space to write at home. Firefly, an award-winning program at UCSF, facilitates written correspondence between patients with cancer and medical students over the course of one year. Firefly’s archive contains thousands of patient letters and constitutes a unique resource for analyzing authentic patient expression outside of the clinical context. The aim of the current study is to improve curricula pertaining to severe illness and end-of-life by providing educators with an analysis of authentic patient perspectives about death and dying expressed in these letters. Methods: We (two medical students, an expressive artist, and an oncologist) read all Firefly letters written by patients between 2014 and 2019 and identified 12 patients whose letters meaningfully discussed death or dying. We performed a thematic analysis of these letters using the Buckman three-stage model of dying as a reference. Results: Four themes emerged: turmoil; grief; making peace; and past, present and future. The first three themes aligned with the Buckman stages. The fourth theme—past, present and future—spanned the three stages and also elaborated the Buckman model by describing multiple paths that patients may take after passing through these stages. Conclusions: The authentic ways in which patients with cancer discussed death and dying in their letters provided deep insight into their coping process. The Buckman model appears useful for framing death and dying from the patient perspective but may not fully reflect modern oncologic care in which many patients live for years beyond a severe or terminal diagnosis. Educators can use the identified themes to shape medical school curricula pertaining to severe illness and end-of-life care.

Sign in / Sign up

Export Citation Format

Share Document