scholarly journals Resource Allocation, Pit Quality, and Early Survival of Seedlings Following Two Motor-Manual Pit-Drilling Options

Forests ◽  
2018 ◽  
Vol 9 (11) ◽  
pp. 665 ◽  
Author(s):  
Nicuşor Boja ◽  
Florinel Boja ◽  
Alin Teusdea ◽  
Dan Vidrean ◽  
Marina Marcu ◽  
...  

Afforestation and reforestation operations constitute an important part of the forest management, being crucial for the sustainability of forests. In such operations, there are three options to prepare the planting holes: manual, partly mechanized, and fully mechanized. Given the high cost of mechanized planting and the ergonomic issues of manual planting, one option which is worth exploring is using of augers, because they have the potential to mitigate and/or eliminate intense physical effort and aspects of some of the ergonomic problems. This study examines the early survival of seedlings following the use of augers to prepare the planting pits. Working time, fuel consumption and physical quality of the pits were evaluated on nine sites for two drill types differentiated by their diameter (150 vs. 200 mm). Time consumption was systematically higher when using the larger drill, while fuel consumption was not found to be statistically different. The larger drill systematically produced pits characterized by less physical quality in terms of resistance to penetration and shear strength, but the early survival of seedlings was higher when using this drill size. Survival probability modeled by means of logistic regression showed that pit size was among the factors that may affect the early survival of seedlings. The study concludes that the larger drill would be more appropriate to plant seedlings, but further studies should be arranged to see if long-term survival would be affected in this case.

2017 ◽  
Vol 103 (2) ◽  
pp. 484-490 ◽  
Author(s):  
Mamdoh Al-Ameri ◽  
Per Bergman ◽  
Anders Franco-Cereceda ◽  
Ulrik Sartipy

CHEST Journal ◽  
2010 ◽  
Vol 137 (4) ◽  
pp. 783-789 ◽  
Author(s):  
Guangxi Li ◽  
Marija Kojicic ◽  
Martin K. Reriani ◽  
Evans R. Fernández Pérez ◽  
Lokendra Thakur ◽  
...  

2006 ◽  
Vol 23 (Supplement 38) ◽  
pp. 22
Author(s):  
E. Bignami ◽  
G. Landoni ◽  
G. Crescenzi ◽  
G. Giardina ◽  
F. Boroli ◽  
...  

2021 ◽  
Vol 12 (4) ◽  
pp. 78-84
Author(s):  
M. Bakos ◽  
T. Jankovic ◽  
M. Vidiscak ◽  
S. Durdik

Introduction:Quality of life in cancer patients and probably also long term survival is negatively affected with fear of the recurrence of cancer and consequences of aggressive therapy. This is the reason for anxiety, depressions, and frustration which are accompanied by cognitive, emotional and behavioral disorders in their physical, relationship, sexual and social func- tioning. The aim of our study is to analyze the dynamics of evolution of the psychosocial loads and qualitative changes its symptomatology in cancer patients who survival 1-4 years after surgery. Material and methods:For assessment of psychosocial mor- bidity ́s in measure in surgery patients standardized question- naires of European Organization for Research and Treatment of Cancer- questionnaire EORTC QLQ-C30.3 (Quality of Life- C.30.3) and its module EORTC QLQ- BR23 were used. Results:The degree of psychosocial mortality in survival pa- tients one year after MRM in our group clearly demonstrated that these patients suffered because of consequences of psy- chosocial loads. It results from fear of recurrence of cancer and next functional, emotional, cognitive and social disorders with- out regard for surgery range. The degree of psychosocial loads in patients after MRM is still more than 4 years after end of treatment. Results show, that after the end of treatment there are many changes in their lives - anxiety and depressions can lead to psychical lability because of higher doubts, nervous- ness, irritability, helplessness and loneliness in their sufferers. Conclusion:Out-patient psychosocial interventions and pre- ventions because of negative impact of ongoing and changing psychosocial loads becomes necessary. It means that there is negative impact on quality of life; of long term cancer remis- sion and survival of patients after surgery.


Pancreatic ductal adenocarcinoma (PDAC) most commonly affects the head of the pancreas. This condition has a dismal prognosis. Patients with early disease may be candidates for pancreaticoduodenectomy (PD). This is a high-risk operation which is associated with considerable morbidity. Whilst perioperative mortality rates have fallen in recent times, the risk remains significant and long-term survival is poor, even in those who make an uncomplicated recovery. Furthermore, PD is known to affect quality of life (QoL) negatively. Most studies suggest it takes up to six months before a patient’s QoL returns to baseline. This is a considerable amount of time for a patient who is unlikely to achieve long-term survival. This short review discusses the recent literature surrounding mortality rates, long-term survival and QoL following PD for PDAC. A comprehensive understanding of these topics will allow clinicians and patients to consider the risks and benefits before surgical resection is considered.


1998 ◽  
Vol 31 (4) ◽  
pp. 1015-1019
Author(s):  
Tetsuro Kubota ◽  
Yoichiro Ishikawa ◽  
Soichiro Isshiki ◽  
Takeyoshi Yokoyama ◽  
Koji Fujita ◽  
...  

2021 ◽  
Author(s):  
Brent Gilliard

Public space is important to a city’s economic and social quality. Downtown Toronto is not known for its public spaces but Melbourne is widely recognized for recently revitalizing its city centre with improved public spaces. A case study of Melbourne investigates its comparability to Toronto as well as the details of its "renaissance." It is concluded that Melbourne is, in fact, highly comparable to Toronto. Interventions in Melbourne were characterized by the principles: long-term vision, emphasizing local strengths, investment in quality, making space for people on foot, and using effective arguments and evidence. To emulate Melbourne’s city-centre revitalization, Toronto first should facilitate a civic conversation about the long-term vision for its downtown; second, it should initiate a public life survey of the downtown; third, it should invest is the physical quality of downtown public spaces; and fourth, it should begin an incremental program to reclaim roadway space from cars in locations of high pedestrian use.


Author(s):  
Jerome J. Spunberg ◽  
Chu H. Chang ◽  
Michael Goldman ◽  
Elizabeth Auricchio ◽  
Jennifer Bell

2006 ◽  
Vol 34 (2) ◽  
pp. 354-362 ◽  
Author(s):  
H A. Cense ◽  
J B. F. Hulscher ◽  
A G. E. M. de Boer ◽  
D A. Dongelmans ◽  
H W. Tilanus ◽  
...  

Sign in / Sign up

Export Citation Format

Share Document