181 research outputs found
No Appealing Future For High Growth â Low Profitability Firms: Evidence from Turkeyâs Top 1000
The view that profitability, not growth, is the driving force behind the firm performance, and unprofitable high growth can not lead to financial success has often been discussed in the literature. In this study, I tested this hypothesis on Turkeyâs top 1000 data using an extended version of the method of Davidson et al. (2009). My sample strongly supports the hypothesis that controlling for leverage, low growth-high profitability (profit) firms outperform high growth-low profitability (growth) firms regarding both directions of their transition to an upper state and a lower state in subsequent periods. The hypothesis that controlling for type of firm (growth or profit firm), leverage matters with respect to firmâs future performance is weakly supported by 3-year transition data.Firm performance, growth, profitability, Turkey
Synchronous tumors of the female genital tract: A 20-year experience in a single center
Objective: To evaluate the clinicopathological characteristics and the clinical outcome of synchronous malignant neoplasms of the female reproductive tract. Material and Methods: Patients who were operated and diagnosed with synchronous malignant tumor of the genital system (n=25) at the Dokuz Eylul University Department of Obstetrics and Gynecology, Gynecologic Oncology Unit between 1992 and 2012 were included into this study. Recurrent, metastatic and metachronously detected tumors were not included. Age at diagnosis, parity, menopausal status, hormone use, presenting sign or symptoms and the clinical outcomes were evaluated. Results: 20 of 25 patients had endometrial-ovarian cancer. The mean age at diagnosis was 53,6 years. The most common presenting symptom was abnormal uterine bleeding. The median follow-up duration for all patients was 69 months. Overall survival for all patients was 87 months and 81 months for patients with endometrial-ovarian cancer. 5-year survival rate was 73% for all patients and 68% for patients with endometrial-ovarian cancer. Conclusions: Endometrial-ovarian cancer togetherness is the most common in synchronous gynecologic malignancies. They occur at a younger age and have more favorable prognosis than metastatic primary gynecologic tumors
An Uncommon Intramedullary Tumor: Primary Spinal Cord Melanoma
A 47-year-old woman was admitted with complaints of progressive weakness in the lower extremities and pain in the back and left leg. Thoracic magnetic resonance imaging (MRI) revealed a spinal intramedullary tumor between the T9 and L1 levels, which were iso- to hypointense on T2 and slightly hyperintense on T1-weighted images. The tumor was resected as total, and the diagnosis was malignant melanoma confirmed with histopathology. Neurological findings improved at the postoperative period and no residual or recurrence was noted on postoperative MRI at the 9-month follow-up. Primary melanoma of the spinal cord, particularly intramedullar localization, is seldomly reported in the literature. We report a primary malignant melanoma of the spinal cord and emphasize the diagnostic and prognostic challenges
SÄ°LLE, BÄ°R KORUMA GELÄ°ĆTÄ°RME PLANI VE SONRASIÂ
Sille, which for some people it is a Byzantium village, for some other it is a Central Anatolian settlement dated to very old periods, where either Byzantines or Turks, as being Orthodox Christian and Muslim, lived together. Sille, which is known a very important centre up to the end of 19 Century, fell into a declining period at the end of that century, and accelerated its speed during the Post Exchanging period realized together with Lozan Agreement, and reached to the 21 Century. A slowly increasing interest, being not much as in old times, by Conservation Development Plan (CDP), providing tourism attraction, and the positive process experienced during conservation implementations (after 2004) have led to a significant activities in Sille. In this study, starting with the Sille case, it is tried to take the picture of conservation implementations in Turkey within the framework experienced during the period of 10 years after the approval of the plan, by examining the investigations carried out before CDP and the plan decisions taken. Sille, kimine göre bir Rum köyĂŒ, kimine göre Anadoluânun ortasında hem Rumların, hem TĂŒrklerin Ortodoks Hristiyan ve MĂŒslĂŒman olarak birlikte yaĆamıĆ oldukları, tarihi çok eskilere dayanan bir Anadolu yerleĆmesidir. 19. YĂŒzyılın sonlarına kadar önemli bir merkez olduÄu bilinen Silleânin, bu yĂŒzyılın sonuna doÄru yaĆamaya baĆladıÄı bir gerileme dönemi hızını Lozanâla birlikte gerçekleĆen MĂŒbadele sonrası iyice arttırmıĆ ve 21. YĂŒzyıla uzanabilmiĆtir. 2001 yılında onaylanan Koruma Amaçlı İmar Planı (KAÄ°P) ile eskisi kadar olmasa da yavaĆ yavaĆ artan ilgi, turizm olgusunun isteklendirmesi ve koruma uygulamasında yaĆanan olumlu sĂŒreç (2004 sonrası) Silleâde bir hareketlenmeye yol açmıĆtır. Bu çalıĆma, Sille KAÄ°P öncesi yapılan araĆtırmalar ve alınan plan kararlarını incelerken, plan onayını izleyen 10 yıllık sĂŒreçte yaĆananlar çerçevesindeÂ ĂŒlkemizdeki koruma uygulamasının Sille örneÄinden hareketle bir fotoÄrafını çekmeye çalıĆmaktadır
Mean platelet volume and its relationship with carotid atherosclerosis in subjects with non-alcoholic fatty liver disease
Antimicrobial resistance among migrants in Europe: a systematic review and meta-analysis
BACKGROUND: Rates of antimicrobial resistance (AMR) are rising globally and there is concern that increased migration is contributing to the burden of antibiotic resistance in Europe. However, the effect of migration on the burden of AMR in Europe has not yet been comprehensively examined. Therefore, we did a systematic review and meta-analysis to identify and synthesise data for AMR carriage or infection in migrants to Europe to examine differences in patterns of AMR across migrant groups and in different settings. METHODS: For this systematic review and meta-analysis, we searched MEDLINE, Embase, PubMed, and Scopus with no language restrictions from Jan 1, 2000, to Jan 18, 2017, for primary data from observational studies reporting antibacterial resistance in common bacterial pathogens among migrants to 21 European Union-15 and European Economic Area countries. To be eligible for inclusion, studies had to report data on carriage or infection with laboratory-confirmed antibiotic-resistant organisms in migrant populations. We extracted data from eligible studies and assessed quality using piloted, standardised forms. We did not examine drug resistance in tuberculosis and excluded articles solely reporting on this parameter. We also excluded articles in which migrant status was determined by ethnicity, country of birth of participants' parents, or was not defined, and articles in which data were not disaggregated by migrant status. Outcomes were carriage of or infection with antibiotic-resistant organisms. We used random-effects models to calculate the pooled prevalence of each outcome. The study protocol is registered with PROSPERO, number CRD42016043681. FINDINGS: We identified 2274 articles, of which 23 observational studies reporting on antibiotic resistance in 2319 migrants were included. The pooled prevalence of any AMR carriage or AMR infection in migrants was 25·4% (95% CI 19·1-31·8; I2 =98%), including meticillin-resistant Staphylococcus aureus (7·8%, 4·8-10·7; I2 =92%) and antibiotic-resistant Gram-negative bacteria (27·2%, 17·6-36·8; I2 =94%). The pooled prevalence of any AMR carriage or infection was higher in refugees and asylum seekers (33·0%, 18·3-47·6; I2 =98%) than in other migrant groups (6·6%, 1·8-11·3; I2 =92%). The pooled prevalence of antibiotic-resistant organisms was slightly higher in high-migrant community settings (33·1%, 11·1-55·1; I2 =96%) than in migrants in hospitals (24·3%, 16·1-32·6; I2 =98%). We did not find evidence of high rates of transmission of AMR from migrant to host populations. INTERPRETATION: Migrants are exposed to conditions favouring the emergence of drug resistance during transit and in host countries in Europe. Increased antibiotic resistance among refugees and asylum seekers and in high-migrant community settings (such as refugee camps and detention facilities) highlights the need for improved living conditions, access to health care, and initiatives to facilitate detection of and appropriate high-quality treatment for antibiotic-resistant infections during transit and in host countries. Protocols for the prevention and control of infection and for antibiotic surveillance need to be integrated in all aspects of health care, which should be accessible for all migrant groups, and should target determinants of AMR before, during, and after migration. FUNDING: UK National Institute for Health Research Imperial Biomedical Research Centre, Imperial College Healthcare Charity, the Wellcome Trust, and UK National Institute for Health Research Health Protection Research Unit in Healthcare-associated Infections and Antimictobial Resistance at Imperial College London
Surgical site infection after gastrointestinal surgery in high-income, middle-income, and low-income countries: a prospective, international, multicentre cohort study
Background: Surgical site infection (SSI) is one of the most common infections associated with health care, but its importance as a global health priority is not fully understood. We quantified the burden of SSI after gastrointestinal surgery in countries in all parts of the world.
Methods: This international, prospective, multicentre cohort study included consecutive patients undergoing elective or emergency gastrointestinal resection within 2-week time periods at any health-care facility in any country. Countries with participating centres were stratified into high-income, middle-income, and low-income groups according to the UN's Human Development Index (HDI). Data variables from the GlobalSurg 1 study and other studies that have been found to affect the likelihood of SSI were entered into risk adjustment models. The primary outcome measure was the 30-day SSI incidence (defined by US Centers for Disease Control and Prevention criteria for superficial and deep incisional SSI). Relationships with explanatory variables were examined using Bayesian multilevel logistic regression models. This trial is registered with ClinicalTrials.gov, number NCT02662231.
Findings: Between Jan 4, 2016, and July 31, 2016, 13 265 records were submitted for analysis. 12 539 patients from 343 hospitals in 66 countries were included. 7339 (58·5%) patient were from high-HDI countries (193 hospitals in 30 countries), 3918 (31·2%) patients were from middle-HDI countries (82 hospitals in 18 countries), and 1282 (10·2%) patients were from low-HDI countries (68 hospitals in 18 countries). In total, 1538 (12·3%) patients had SSI within 30 days of surgery. The incidence of SSI varied between countries with high (691 [9·4%] of 7339 patients), middle (549 [14·0%] of 3918 patients), and low (298 [23·2%] of 1282) HDI (p < 0·001). The highest SSI incidence in each HDI group was after dirty surgery (102 [17·8%] of 574 patients in high-HDI countries; 74 [31·4%] of 236 patients in middle-HDI countries; 72 [39·8%] of 181 patients in low-HDI countries). Following risk factor adjustment, patients in low-HDI countries were at greatest risk of SSI (adjusted odds ratio 1·60, 95% credible interval 1·05â2·37; p=0·030). 132 (21·6%) of 610 patients with an SSI and a microbiology culture result had an infection that was resistant to the prophylactic antibiotic used. Resistant infections were detected in 49 (16·6%) of 295 patients in high-HDI countries, in 37 (19·8%) of 187 patients in middle-HDI countries, and in 46 (35·9%) of 128 patients in low-HDI countries (p < 0·001).
Interpretation: Countries with a low HDI carry a disproportionately greater burden of SSI than countries with a middle or high HDI and might have higher rates of antibiotic resistance. In view of WHO recommendations on SSI prevention that highlight the absence of high-quality interventional research, urgent, pragmatic, randomised trials based in LMICs are needed to assess measures aiming to reduce this preventable complication
Impact of opioid-free analgesia on pain severity and patient satisfaction after discharge from surgery: multispecialty, prospective cohort study in 25 countries
Background: Balancing opioid stewardship and the need for adequate analgesia following discharge after surgery is challenging. This study aimed to compare the outcomes for patients discharged with opioid versus opioid-free analgesia after common surgical procedures.Methods: This international, multicentre, prospective cohort study collected data from patients undergoing common acute and elective general surgical, urological, gynaecological, and orthopaedic procedures. The primary outcomes were patient-reported time in severe pain measured on a numerical analogue scale from 0 to 100% and patient-reported satisfaction with pain relief during the first week following discharge. Data were collected by in-hospital chart review and patient telephone interview 1 week after discharge.Results: The study recruited 4273 patients from 144 centres in 25 countries; 1311 patients (30.7%) were prescribed opioid analgesia at discharge. Patients reported being in severe pain for 10 (i.q.r. 1-30)% of the first week after discharge and rated satisfaction with analgesia as 90 (i.q.r. 80-100) of 100. After adjustment for confounders, opioid analgesia on discharge was independently associated with increased pain severity (risk ratio 1.52, 95% c.i. 1.31 to 1.76; P < 0.001) and re-presentation to healthcare providers owing to side-effects of medication (OR 2.38, 95% c.i. 1.36 to 4.17; P = 0.004), but not with satisfaction with analgesia (beta coefficient 0.92, 95% c.i. -1.52 to 3.36; P = 0.468) compared with opioid-free analgesia. Although opioid prescribing varied greatly between high-income and low- and middle-income countries, patient-reported outcomes did not.Conclusion: Opioid analgesia prescription on surgical discharge is associated with a higher risk of re-presentation owing to side-effects of medication and increased patient-reported pain, but not with changes in patient-reported satisfaction. Opioid-free discharge analgesia should be adopted routinely
A survival analysis of the contraction phases of business cycles in industrial countries
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