نتایج جستجو برای: sustainable repair time
تعداد نتایج: 2119144 فیلتر نتایج به سال:
Nations in the 21st century face a complex mix of environmental and social challenges, as highlighted by the on-going Sustainable Development Goals process. The "planetary boundaries" concept [Rockström J, et al. (2009) Nature 461(7263):472-475], and its extension through the addition of social well-being indicators to create a framework for "safe and just" inclusive sustainable development [Ra...
Recent expansion of the scale of human activities poses severe threats to Earth's life-support systems. Increasingly, protected areas (PAs) are expected to serve dual goals: protect biodiversity and secure ecosystem services. We report a nationwide assessment for China, quantifying the provision of threatened species habitat and four key regulating services-water retention, soil retention, sand...
The 17 Sustainable Development Goals (SDGs) call for a comprehensive new approach to development rooted in planetary boundaries, equity, and inclusivity. The wide scope of the SDGs will necessitate unprecedented integration of siloed policy portfolios to work at international, regional, and national levels toward multiple goals and mitigate the conflicts that arise from competing resource deman...
Background & Aims : Injuries to tendons are among the most common injuries to body. A repaired tendon needs to be immobilized for weeks until it has accrued enough strength to handle physiological loads. Tissue-engineered cell therapies offer many new treatment options for repair of diseased and damaged tissues. The present study aimed to investigate the effect of intratendinous injection o...
introduction: adequate seal of iatrogenically perforated area within the root canal system can improve the long term treatment prognosis. this in vitro study evaluated the sealing ability of mineral trioxide aggregate (mta), calcium-enriched mixture (cem) cement and biodentine in repair of furcation perforation in primary molars. methods and materials: a total of 61 freshly extracted primary ma...
BACKGROUND The optimal time to create symmetry in a cleft lip is during primary repair; a secondary effort later is more difficult due to potential scarring and possible tissue deficiency of the repaired cleft lip. A plethora of methods for secondary correction have been described that have the goal of constructing the philtral column, ameliorating bad scar results, and augmenting lip volume, f...
analgesic effect of clonidine added to bupivacaine in spinal anesthesia for cruciate ligament repair
conclusions clonidine plus bupivacaine can increase the duration of motor and sensory block in arthroscopic cruciate ligament repair under spinal anesthesia. however, due to significant hemodynamic changes, further studies are required to determine a safer dose. results all patients were males with a mean age of 24.9 years in group b, and 25.2 years in group bc (p > 0.05). in group bc, time lap...
introduction: perforations of the pulpal floor create problems during endodontic treatment and often results in secondary periodontal involvement with eventual loss of teeth. the purpose of this study was to evaluate the ability of mineral trioxide aggregate (mta), amalgam, zinc oxide and eugenol (zoe) and portland cement to seal furcal perforations in extracted human molars using dye penetrati...
in this case report, we described a 74-year-old female patient with major complaint of respiratory problemsdyspnea after meal. chest x-ray of the patient revealed a gianttype iv hiatal hernia. preoperative evaluations of the patient included esophagoscopy, esophageal manometry, barium swallow, and ct-scan. repair of the hernia was performed using a dual mesh on the diaphragm and partial anteri...
Restoration of worn parts is a key technique in remanufacturing engineering. It is also a popular research topic in the domain of sustainable manufacturing. To tackle the difficult problem of obtaining a reference model for repair of worn parts, this paper proposed a novel approach to regenerate the vertices over the worn cavity. After a brief description of the repair process, this paper focus...
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