Purpose -The purpose of this paper is to examine empirically the causal links among operations strategy (OS), environmental dynamism (ED) and firm performance (FP) within the context of a key emerging economy, Turkey. Design/methodology/approach -Drawing on a structured questionnaire, data for the study was collected from a sample of 211 firms that are listed in the database of the Turkey's largest 1,000 manufacturing firms. The research framework was tested using partial least squares method, which is a variance-based structural equation modeling approach. Findings -The results indicate that ED is positively and significantly related to OS dimensions. ED is also found to have a strong and positive influence on FP. Some strong support has also been found regarding the effect of OS on FP.Research limitations/implications -The study's narrow focus on Turkish companies precludes the generalization of findings to other emerging countries as well as other sectors that may benefit from OS. Also, the collection of data from a single respondent in each firm might be a cause for possible response bias. Practical implications -This study provides managers with a useful tool for evaluating the efficiency of their OS relative to their competitors in dynamic business environments. Moreover, the findings of this study are envisaged to aid company managers in their endeavors to craft and execute successful strategies where appropriate environmental considerations and new operations capabilities should be incorporated to their broader strategic plans. Originality/value -The main contribution of this study stems from its examination of the causal links among OS, ED and FP within the context of a key emerging economy, Turkey.

BackgroundWe assessed the recovery of 2 face transplantation patients with measures of complexity during neuromuscular rehabilitation. Cognitive rehabilitation methods and functional electrical stimulation were used to improve facial emotional expressions of full-face transplantation patients for 5 months. Rehabilitation and analyses were conducted at approximately 3 years after full facial transplantation in the patient group. We report complexity analysis of surface electromyography signals of these two patients in comparison to the results of 10 healthy individuals.MethodsFacial surface electromyography data were collected during 6 basic emotional expressions and 4 primary facial movements from 2 full-face transplantation patients and 10 healthy individuals to determine a strategy of functional electrical stimulation and understand the mechanisms of rehabilitation. A new personalized rehabilitation technique was developed using the wavelet packet method. Rehabilitation sessions were applied twice a month for 5 months. Subsequently, motor and functional progress was assessed by comparing the fuzzy entropy of surface electromyography data against the results obtained from patients before rehabilitation and the mean results obtained from 10 healthy subjects.ResultsAt the end of personalized rehabilitation, the patient group showed improvements in their facial symmetry and their ability to perform basic facial expressions and primary facial movements. Similarity in the pattern of fuzzy entropy for facial expressions between the patient group and healthy individuals increased. Synkinesis was detected during primary facial movements in the patient group, and one patient showed synkinesis during the happiness expression. Synkinesis in the lower face region of one of the patients was eliminated for the lid tightening movement.ConclusionsThe recovery of emotional expressions after personalized rehabilitation was satisfactory to the patients. The assessment with complexity analysis of sEMG data can be used for developing new neurorehabilitation techniques and detecting synkinesis after full-face transplantation.Electronic supplementary materialThe online version of this article (10.1186/s12984-018-0356-0) contains supplementary material, which is available to authorized users.

In this study, it is aimed to determine the degree of the development in emotional expression of full face transplant patients from photographs. Hence, a rehabilitation process can be planned according to the determination of degrees as a later work. As envisaged, in full face transplant cases, the determination of expressions can be confused or cannot be achieved as the healthy control group. In order to perform image-based analysis, a control group consist of 9 healthy males and 2 full-face transplant patients participated in the study. Appearance-based Gabor Wavelet Transform (GWT) and Local Binary Pattern (LBP) methods are adopted for recognizing neutral and 6 emotional expressions which consist of angry, scared, happy, hate, confused and sad. Feature extraction was carried out by using both methods and combination of these methods serially. In the performed expressions, the extracted features of the most distinct zones in the facial area where the eye and mouth region, have been used to classify the emotions. Also, the combination of these region features has been used to improve classifier performance. Control subjects and transplant patients' ability to perform emotional expressions have been determined with K-nearest neighbor (KNN) classifier with region-specific and method-specific decision stages. The results have been compared with healthy group. It has been observed that transplant patients don't reflect some emotional expressions. Also, there were confusions among expressions.

We assessed clinical features as well as sensory and motor recoveries in 3 full-face transplantation patients. A frequency analysis was performed on facial surface electromyography data collected during 6 basic emotional expressions and 4 primary facial movements. Motor progress was assessed using the wavelet packet method by comparison against the mean results obtained from 10 healthy subjects. Analyses were conducted on 1 patient at approximately 1 year after face transplantation and at 2 years after transplantation in the remaining 2 patients. Motor recovery was observed following sensory recovery in all 3 patients; however, the 3 cases had different backgrounds and exhibited different degrees and rates of sensory and motor improvements after transplant. Wavelet packet energy was detected in all patients during emotional expressions and primary movements; however, there were fewer active channels during expressions in transplant patients compared to healthy individuals, and patterns of wavelet packet energy were different for each patient. Finally, high-frequency components were typically detected in patients during emotional expressions, but fewer channels demonstrated these high-frequency components in patients compared to healthy individuals. Our data suggest that the posttransplantation recovery of emotional facial expression requires neural plasticity.

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Enterprise Resource Planning (ERP) systems attempt to integrate all corporate information in one central database, they allow information to be retrieved from many di erent organizational positions, and in principle they render any organizational object visible [1]. e purpose of this study rst of all is to conduct a literature search to identify selection criteria, critical success factors, and advantages of Enterprise Resource Planning and commonly encountered problems in ERP implementation. Hypotheses are developed and tested to investigate the di erences in success factors according to the sector, in which the rm operates, ERP level, and ERP implementation stage of the rm. According to the results, functionality, cross module integration and system reliability have been identi ed as the most important selection criteria.Keywords: Enterprise resources planning (ERP), Critical success factors of ERP, Implementation problems. KURUMSAL KAYNAK PLANLAMASI UYGULAMALARI: TÜRK SANAYİ İŞLETMELERİNDE BİR ARAŞTIRMAÖzet Kurumsal Kaynak Planlaması (KKP) sistemleri, tüm kurumsal bilgileri tek bir merkezi veritabanına entegre etmeye çalışmakta, pek çok farklı organizasyonel pozisyondan bilginin edinilmesine izin vermekte ve esas itibariyle her organizasyonel amacı görünür hale getirmektedir [1]. Bu çalışmanın amacı, öncelikle Kurumsal Kaynak Planlaması için seçim kriterlerini, kritik başarı faktörlerini ve avantajlarını ve KKP uygulamasında genellikle karşılaşılan sorunları tespit etmek üzere bir akademik yazın incelemesi gerçekleştirmektir. Firmanın faaliyet gösterdiği sektöre göre, * Yıldız Tekn k Ün vers tes , İ.İ.B.F. İşletme Bölümü, Öğret m Üyes ** Bahçeşeh r Ün vers tes ,Mühend sl k Fakültes , İşletme Mühend sl ğ Bölümü, Öğret m Üyes ERP düzeyine göre ve rmanın ERP uygulama adımına göre başarı faktörlerindeki farklılıkların tespiti için hipotezler geliştirilmiş ve test edilmiştir. Sonuçlar, fonksiyonellik, modüllerin çapraz entegrasyonu ve sistemin güvenilirliğinin en önemli seçim kriterleri olduğunu göstermiştir.Anahtar Kelimeler: Kurumsal Kaynak Planlaması (KKP), KKP'n n kr t k başarı faktörler , Uygulamada karşılaşılan sorunlarIn the changing business environment, companies face the challenge of increasing competition, expanding markets, and rising customer expectations. is situation forces companies to lower total costs in the entire supply chain, shorten throughput times, drastically reduce inventories, expand product choice, provide more reliable delivery dates and better customer service, improve quality, and e ciently coordinate global demand, supply, and production [2,3].In other, words in today's highly competitive environment, companies need faster supply chains [4]. In such an environment, it is realized that the in-house information of companies, which is tried to be kept as a secret most of the time, must be shared with its stakeholders. Also, functions within the company must upgrade their capability to generate and communicate timely and accurate information [2,3]. erefore, information must be shared eas...

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Due to the rise of globalization, dynamics of national and international market evolve towards higher competition and uncertainty, necessitating firms to undertake multiple tasks that occur simultaneously. In this difficult to predict atmosphere, using technological opportunities and innovations bring firms a competitive advantage over their rivals. In recent years, one of the significant strategies of gaining and sustaining a competitive advantage in the market is the capability of firms to introduce innovations and adopting these innovations as quickly as possible. Firms mostly use internal capabilities and external sources of knowledge in developing this innovation capability. In the literature, numerous earlier studies have concentrated on the relationship between innovativeness and internal capabilities and external sources of knowledge. However, there are still very few researches on emerging countries which covers all of these dimensions. Therefore, the motivation of this study is to focus on the relationships among internal capabilities of firms, external sources of knowledge, and types of innovations in the case of Turkey as an important emerging country. This study uses a comprehensive model empirically based upon the data gathered from Business Environment and Enterprise Performance Survey (BEEPS) that was carried out by the World Bank in Turkey in 2013. The results show that firms which benefit from internal capabilities are likely to make innovations and firms which use external sources of knowledge are likely to make innovations. But among the types of innovations, only product innovations could be achieved when firms are benefited from the joint effect of internal capabilities and external sources of knowledge.