Optimal Strategy of the Electricity Sale Distribution for Deterministic Generation in Long-Term and Real-Time Markets Based on Risk Factors

2015 ◽  
Vol 713-715 ◽  
pp. 1003-1008
Author(s):  
Ji Qing Li ◽  
Ming Jiang Xie ◽  
Yu Shan Zhang
Keyword(s):  
Risk Factors ◽  
Real Time ◽  
Electricity Market ◽  
Optimal Strategy ◽  
Mathematic Model ◽  
Electricity Power ◽  
The Relationship

There are many various patterns for electricity market. Different countries adopt different patterns according to their own characteristics. However, no matter what pattern they adopt, there must be a certain structure similar to long-term market and real-time market where power sellers usually make electricity transaction. From the view of electricity power sellers, it is the key for hydropower enterprise (Power seller) to find an optimal sale strategy which can maximize the amount of electricity sale while minimizing the probability of risk. In this paper, on the base of analysis on the deterministic gross generation, a mathematic model is established to gain the maximal income of electricity sale in the case of considering risk factors, and to investigate the relationship between risk factors and electricity sale distribution in the two markets, long-term market and real-time market. Then, subsequently, the optimal strategy of electricity sale distribution of gross generation will be obtained in every market in order to maximize the total expected benefit. The feasibility and validness of the Model are verified by its application to a case as well.

Long-term medical cannabis use and risk factors for diversion: Report on physician's guidance and patients’ behaviour

2019 ◽  
Vol 18 (1) ◽  
pp. 18-23
Author(s):  
Sharon R. Sznitman ◽  
Victoria Goldberg ◽  
Hedva Sheinman-Yuffe ◽  
Yuval Zolotov ◽  
Ezequiel Flechter ◽  
...  
Keyword(s):  
Risk Factors ◽  
Cannabis Use ◽  
Medical Cannabis ◽  
Safety Practices ◽  
Face To Face ◽  
Safe Storage ◽  
Regular Manner ◽  
Key Aspects ◽  
The Relationship

AbstractObjectivesVarious jurisdictions have legalized cannabis for medical purposes. As with all psychoactive medications, medical cannabis carries a risk of diversion and accidental ingestion. These risks may be particularly high among long-term medical cannabis patients as safety practices may become less salient to patients once the treatment becomes part of everyday life. The current study examines whether patients who have used medical cannabis for longer periods differ from those who have used for shorter periods in terms of sociodemographic background and other key aspects of medical cannabis use. Furthermore, the study examines the relationship between length of medical cannabis treatment and risk factors related to storage and diversion. Finally, the study examines the extent to which oncologists provide information to their patients about safe storage and disposal.MethodsOne hundred twenty-one medical cannabis oncology patients were interviewed face-to-face and 55 oncologists participated in a survey about safe storage and disposal practices related to medical cannabis.ResultsLength of medical cannabis treatment was related to administration by smoking and using higher monthly dosages. In terms of risk for unsafe storage and diversion, length of medical cannabis was positively associated with using cannabis outside the home and having been asked to give away medical cannabis. Physicians did not report providing information to patients regarding safe storage and disposal practices in a regular manner.Significance of resultsResults suggest that there is an ongoing risk of unsafe storage and diversion over the course of medical cannabis treatment. Oncologists may need to give more consistent and continued training in safe storage and disposal practices, especially among long-term medical cannabis patients.

scholarly journals Eliamani's Homestead

2019 ◽  
Vol 3 (1) ◽  
pp. e1488
Author(s):  
Vanessa Wijngaarden
Keyword(s):  
Real Time ◽  
Cultural Tourism ◽  
The Other ◽  
Single Shot ◽  
Research Participants ◽  
Anthropological Research ◽  
Close Cooperation ◽  
Being There ◽  
The Relationship

'Eliamani's Homestead' was shot as a result of long-term anthropological research in Tanzania and the translations were created in close cooperation with the Maasai research participants. Originally recorded for research purposes for a project on the relationship between images of and interactions with ‘the other’, the 20-minute single-shot includes jerky camera movements, but was left uncut and without voiceover in order to give the viewer a real-time experience of 'being there'. Within anthropology, the documentary invites to reflect on parallels between anthropology and tourism, and spurs debates regarding reflexivity. It addresses elements of the 'observer paradox' through the almost complete invisibility of the researcher’s camera, which stands in stark contrast with the obtrusive tourist cameras. That is, until Eliamani looks straight into the lens and dismissively comments upon the researcher’s camera too, making researcher and the documentary’s public part of the voyeuristic 'problem' as well. Outside anthropology, it invokes debates about how we see and interact with 'the other' in (cultural) tourism as well as in wider contexts. It thus addresses the question whether and how audiovisual data segments could be used to share anthropological knowledge inside and outside the discipline and academia.

Modeling the Customer Value Generation in the Industry's Supply Chain

2019 ◽  
Vol 8 (4) ◽  
pp. 1-13
Author(s):  
Milton M. Herrera ◽  
Lina A. Carvajal-Prieto ◽  
Mauricio Uriona-Maldonado ◽  
Fernando Ojeda
Keyword(s):  
Electricity Market ◽  
Customer Value ◽  
Point Of View ◽  
Utility Industry ◽  
Value Perception ◽  
Performance Drivers ◽  
Customer Value Perception ◽  
Electricity Utilities ◽  
The Relationship

This article shows that customer value generation has drivers, which could be different according to each stakeholder within the electricity industry, affecting its growth. Each stakeholder has different interests that affect the decision-making process and the customer value perception in the long term, which impacts on profitability. In order to illustrate how to identify and model key performance drivers to evaluate creating value in the electricity utility industry, this study used a simulation with the system dynamics methodology. Through simulation scenarios, this study shows that, the high customer value perception allows the electricity utilities industry to create more value. This is illustrated with the case of some electricity utilities engaged in the generation and distribution in the Colombian electricity market. The results show a new point of view that contributes to marketers and engineers in the analysis of the relationship between the stakeholders and electricity firms.

Coagulopathy on the first postoperative day predicting the long-term survival of traumatic brain injury patients

2020 ◽  
Author(s):  
Wenxing Cui ◽  
Shunnan Ge ◽  
Yingwu Shi ◽  
Xun Wu ◽  
Jianing Luo ◽  
...  
Keyword(s):  
Risk Factors ◽  
Regression Analysis ◽  
Cox Regression ◽  
Term Survival ◽  
Long Term Survival ◽  
Cox Regression Analysis ◽  
Independent Risk Factors ◽  
The Relationship ◽  
Underlying Risk

Abstract Objective: The purpose of this study was to identify the relationship between coagulopathy during the perioperative period (before the operation and on the first day after the operation) and the long-term survival of TBI patients undergoing surgery, as well as to explore the predisposing risk factors that may cause perioperative coagulopathy.Methods: This retrospective study included 447 TBI patients who underwent surgery from January 1, 2015 to April 25, 2019. Clinical parameters, including patient demographic characteristics, biochemical tests, perioperative coagulation function tests (before the operation and on the first day after the operation) and intraoperative factors were collected. Log-rank univariate analysis and Cox regression models were conducted to assess the relationship between perioperative coagulopathy and the long-term survival of TBI patients. Furthermore, univariate and multivariate analyses were performed to identify the underlying risk factors for perioperative coagulopathy.Results: Multivariate Cox regression analysis identified age, AIS(head) = 5, GCS ≤ 8, systolic pressure at admission < 90 mmHg and postoperative coagulopathy (all P < 0.05) as independent risk factors for survival following TBI; we were the first to identify postoperative coagulopathy as an independent risk factor. According to multivariate logistic regression analysis, for the first time, abnormal ALT and RBC at admission, preoperative coagulopathy, infusion of colloidal solution > 1100 mL and intraoperative bleeding > 950 mL (all P < 0.005) were identified as independent risk factors for postoperative coagulation following surgery after TBI.Conclusions: Those who suffered from postoperative coagulopathy due to TBI had a higher hazard for poor prognosis than those who did not. Closer attention should be paid to postoperative coagulopathy and more emphasis should be placed on managing the underlying risk factors.

Relationship between magnetic resonance imaging findings and prognosis of intracranial tuberculosis

2021 ◽  
pp. 028418512110620
Author(s):  
Xuan Wu ◽  
Xiuhong Yang ◽  
Bo Wang ◽  
Nan Yin ◽  
Xiaohui Mao ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Risk Factors ◽  
Resonance Imaging ◽  
Short Term ◽  
Enhanced Mri ◽  
Cranial Mri ◽  
Independent Risk Factors ◽  
Long Term Prognosis ◽  
The Relationship

Background Intracranial tuberculosis (TB) is an intracranial infection caused by Mycobacterium tuberculosis. Magnetic resonance imaging (MRI), in particular enhanced MRI scan, has the ability to detect characteristic lesions of tuberculous meningitis or cerebral parenchymal TB. Purpose To analyze the relationship between MRI findings and prognosis of patients with intracranial TB. Material and Methods In this retrospective study, a total of 60 patients were confirmed with intracranial TB in the hospital from May 2019 to December 2020. All enrolled patients underwent TB-related laboratory examinations, cranial MRI, and contrast-enhanced MRI. Laboratory tests were analyzed and the relationship between clinical prognosis and cranial MRI features was evaluated. Results Of the 60 patients, 28 (46.67%) had disseminated TB complications, 20 (36.67%) had secondary TB complications, and the remaining 10 (16.66%) had lymphatic TB or spinal TB complications. Of the patients, 25 had good short-term prognosis and 35 had poor short-term prognosis; 44 patients had good long-term prognosis and 16 had poor long-term prognosis. The incidence of cerebral parenchymal tuberculomas on enhanced MRI was significantly higher in the group with good prognosis compared to that in the group with poor prognosis ( P < 0.05). Logistic analysis suggested that hydrocephalus (odds ratio [OR] = 0.057, 95% confidence interval [CI] = 0.003–0.444; P = 0.018) and cistern involvement (OR = 0.100, 95% CI = 0.011–0.581; P = 0.017) were independent risk factors for poor short-term prognosis. Conclusion MRI can display the pathological changes of intracranial TB in detail; hydrocephalus and cistern involvement were independent risk factors for poor short-term prognosis.

scholarly journals Pesticide Concentrations in Vacuum Dust from Farm Homes: Variation between Planting and Nonplanting Seasons

2012 ◽  
Vol 2012 ◽  
pp. 1-10 ◽  
Author(s):  
Vijay Golla ◽  
Brian Curwin ◽  
Wayne Sanderson ◽  
Marcia Nishioka
Keyword(s):  
Risk Factors ◽  
Pesticide Contamination ◽  
Farm Families ◽  
Pesticide Exposures ◽  
Potential Sources ◽  
Exposure Levels ◽  
One Year ◽  
The Relationship ◽  
Planting Season

The hazards of chronic low-level pesticide exposures inside homes have received little attention. Research to date does not provide answers regarding the long-term potential bioavailability of pesticides in homes and its risk factors. The purpose of this study was to investigate pesticide levels in Iowa homes during one year and assess the relationship between exposure levels and potential sources of pesticide contamination. The study involved sampling surveys of the target pesticide atrazine among 32 farm families in a three-county area of Iowa during the planting season (April–June) and nonplanting season (November-December). Dust samples were collected, and information gathered through questionnaires to evaluate pesticide migration inside homes. This study found that dust in every farm home surveyed was contaminated with atrazine during both seasons and these concentrations significantly decreased by the nonplanting season. Pesticide amounts, acreage, and spraying time determined the presence and persistence of this herbicide inside farm homes.

OS 04-08 THE RELATIONSHIP BETWEEN CHILDHOOD RISK FACTORS AND LONG-TERM ARTERIAL STIFFNESS — A 26-YEAR FOLLOW-UP STUDY

2016 ◽  
Vol 34 (Supplement 1) ◽  
pp. e57
Author(s):  
Jianjun Mu ◽  
Chao Chu ◽  
Dan Wang ◽  
Tongshuai Guo ◽  
Yang Wang ◽  
...  
Keyword(s):  
Risk Factors ◽  
Arterial Stiffness ◽  
Follow Up Study ◽  
Childhood Risk Factors ◽  
The Relationship

Suicidality in Borderline Personality Disorder

Crisis ◽  
1998 ◽  
Vol 19 (3) ◽  
pp. 125-135 ◽  
Author(s):  
Carole Kjellander ◽  
Bruce Bongar ◽  
Ashley King
Keyword(s):  
Risk Factors ◽  
Borderline Personality Disorder ◽  
Personality Disorder ◽  
Borderline Personality ◽  
Completed Suicide ◽  
Borderline Patients ◽  
Axis I ◽  
Assessment Strategies ◽  
The Relationship

Recent research on the relationship between borderline personality disorder (BPD) and suicidal behavior is reviewed. Risk factors for attempted and completed suicide as well as the effect of the comorbidity of BPD with other Axis I and II disorders are considered. Explanations for suicidality in BPD are discussed. General assessment strategies are offered, along with treatment recommendations. Specifically, research has shown that borderline patients improve in the long-term, decreasing in suicidality, self-destructiveness, and interpersonal maladjustment, if survival is effectively managed during the turbulent years of youth. Clinical lore at times can lead clinicians to disregard the danger of suicide completion among chronically parasuicidal patients, which can prevent effective intervention during suicidal crises and result in unfortunate outcomes.

scholarly journals Correlates of preschoolers’ screen time in China: parental factors

2022 ◽  
Author(s):  
Xinyao Wang ◽  
Sunyue Ye
Keyword(s):  
Risk Factors ◽  
Screen Time ◽  
Dose Effect ◽  
Physical And Mental Health ◽  
Parental Factors ◽  
Factors Influencing ◽  
Independent Risk Factors ◽  
The Relationship

Abstract Background With the advent of the electronic age, the long-term screen time (ST) of preschoolers in China is relatively high and is on the rise, which is likely to affect preschoolers’ physical and mental health. This study aimed to explore the factors influencing ST in preschoolers, especially the role of parental factors, and to provide a basis for the prevention, control, and intervention of ST in preschoolers in China. Methods A questionnaire was completed by the parents of 1,546 preschoolers from four kindergartens in Pinghu City, Zhejiang Province, China, and a logistic regression model was used to analyze the correlates of excessive ST in preschoolers. Results A total of 43.8% of preschoolers, of which 50.3% were boys and 49.7% were girls, had > 1 hour/day of ST. For older preschoolers, greater screen accessibility, greater frequency of eating in front of a screen, longer ST of parents, and unclear rules of screen behavior were the risk factors for ST being > 1 hour/day (P < 0.05). After adjusting for confounders, the relationship between the ST of fathers and ST of preschoolers was still significant (P < 0.01), and the dose-effect relationship was observed (P < 0.001). Conclusion Prolonged parental ST (especially of fathers) and lack of rules for screen behavior of were independent risk factors for prolonged preschoolers’ ST in this study.

Improving success rates for Indigenous business engagement

2017 ◽  
Vol 57 (2) ◽  
pp. 543
Author(s):  
Murray Saylor ◽  
Deb Archbold
Keyword(s):  
Risk Factors ◽  
Risk Management ◽  
Supply Chain ◽  
Lead Time ◽  
Oil And Gas ◽  
Success Rates ◽  
Failure Risk ◽  
Contract Failure ◽  
The Relationship

Although some oil and gas projects have successfully engaged Indigenous businesses in their supply chain, other projects have found this difficult to achieve. Understanding the risk factors in the process of Indigenous engagement and successfully managing those risks creates a positive environment for Indigenous business engagement, one that is much more likely to support long-term success and minimise business and contract failure. Risk management areas to consider include not understanding Traditional Owner community goals and priorities, not assisting communities to build their capabilities and poor communication. This paper maps these risks and outlines four practical strategies to mitigate these risks: (1) giving local Indigenous businesses the lead time to prepare for work opportunities and build their capabilities; (2) including a mix of large, medium-sized and small local Indigenous businesses in the supply chain; (3) using culturally respectful pathways for Indigenous employment; and (4) maintaining the relationship with Traditional Owner groups. Managing risks and using these practical approaches will improve and increase Indigenous business engagement in project supply chains.

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