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  • Yayın
    Turkey's Kurdish opening: Long awaited achievements and failed expectations
    (Routledge Journals, 2014-01-02) Kayhan Pusane, Özlem
    Turkish state actors have used mainly military means to first suppress the Kurdish rebellions and then to end the PKK violence from 1984 onwards. However, after the AKP came to office in 2002, the government challenged the hardline state policy and initiated a Kurdish opening. This policy has the ultimate goal of disarming the PKK and resolving the Kurdish question. However, the Kurdish opening so far has failed to bring about the desired policy outcomes because the parties to the Kurdish question have been highly divided on the side of both the state and the Kurds in Turkey.
  • Yayın
    The economic lot-sizing problem with perishable items and consumption order preference
    (Elsevier Science BV, 2015-08-01) Önal, Mehmet; Romeijn, H. Edwin; Sapra, Amar; Van den Heuvel, Wilco
    We consider the economic lot-sizing problem with perishable items (ELS-PI), where each item has a deterministic expiration date. Although all items in stock are equivalent regardless of procurement or expiration date, we allow for an allocation mechanism that defines an order in which the items are allocated to the consumers. In particular, we consider the following allocation mechanisms: First Expiration, First Out (FEFO), Last Expiration, First Out (LEFO), First In, First Out (FIFO) and Last In, First Out (LIFO). We show that the ELS-PI can be solved in polynomial time under all four allocation mechanisms in case of no procurement capacities. This result still holds in case of time-invariant procurement capacities under the FIFO and LEFO allocation mechanisms, but the problem becomes NP-hard under the FEFO and LIFO allocation mechanisms.
  • Yayın
    Effects of childhood trauma and clinical features on determining quality of life in patients with bipolar I disorder
    (Elsevier Science BV, 2014-06-20) Erten, Evrim; Funda Uney, Aslı; Saatçioğlu, İbrahim Ömer; Özdemir, Armağan; Fıstıkçı, Nurhan; Çakmak, Duran
    Background: We explored how childhood trauma (CHT) affects the clinical expression of disorder and quality of life in patients with bipolar I (BP I) disorder.Methods: Euthymic patients (n=116) who subsequently received a diagnosis of BP-I disorder were consecutively included and were interviewed using the following sociodemographic and clinical data forms; Young Mania Rating Scale (YMRS), Hamilton Depression Rating Scale (HDRS), Childhood Abuse and Neglect Questionnaire (CANQ) and the 36 item Medical Outcome Study Short Form Health Survey (SF 36) The quality of life of BP-I patients with and without a history of CHT were examined.Results: The percentage of trauma was 61.2%. Patients who had CHT had higher frequencies of depressive episodes (t = -2.38, p=0.019), total episodes (t = -2.25, p=0.026), attempted suicide more often (chi(2)=18.12, p=0.003) and had lower scores on the pain subscale of Lhe SF 36 (z=-2.817, p=0.005). In patients with mixed or rapid-cycling episodes, SF-36 subscale scores except general health and pain were Found to be lower.Limitations: Our sample may fail to reflect the general BD population; the patients were included consecutively and consisted of a majority of female patients.Conclusions: CHT plays an important role in the clinical expression of BP-I disorder and having mixed/rapid-cycling episodes negatively affects both physical and mental components, as measured by the SF-36. While both males and females reported experiencing sexual abuse, female BP-I patients complained about pain more often. It is suggested that treatment of BP-1 patients with a history of CHT should differ from that provided for patients with no CHT history.
  • Yayın
    Unnecessary bleeding, unnecessary suffering: normalcy and necessity of menstruation in promoting NovaSure (R)
    (Routledge, 2016-08) Erol Jamieson, Maral
    NovaSure (R) is an endometrial ablation procedure that destroys the inner lining of uterus to stop heavy bleeding. It is performed mostly on women entering menopause who are experiencing irregular and heavy bleeding. In this article, this biotechnology, promoted for women approaching the end of their reproductive life, is analyzed. The analysis is informed by a feminist science studies and medical anthropology background. The discourse of normal' menstruation and representations of menstruation in the promotional materials for NovaSure (R) are explored through a textual analysis of the NovaSure (R) website and patient brochure. The themes in the materials analyzed include the idea of getting back to life, normal' bleeding, and having a choice among different medical procedures and interventions. The possibility of getting rid of embarrassment that accompanies heavy bleeding is also emphasized. It will be argued that NovaSure (R) contributes to the redefinition of what is natural' and necessary' by combining the unnecessary period' idea of pills such as Seasonale (R), which is aimed toward women in their reproductive years, with the unnecessary suffering' idea related to menopausal complaints. While advertising the procedure, NovaSure (R) promotional materials co-construct the ideal user for the technology and reproduce the taboos and embarrassment that accompany menstruation.
  • Yayın
    The relationship between a mother's attitude toward domestic violence and children's schooling outcomes in Turkey
    (Sage Publications Inc, 2014-09) Rende, Sevinç
    This study explores the relationship between a mother's attitude toward domestic violence and her children's schooling outcomes in Turkey. The sample is drawn from the 2003 Turkish Demographic and Health Survey and consists of 7,951 children within the ages of legally mandated compulsory education. A probit regression model is used to analyze the data. The results suggest that the daughters of mothers who find domestic violence acceptable are 2.6 percentage point less likely to enroll in school, all else being equal, than the daughters of mothers who do not tolerate abuse. In comparison, the schooling outcomes of male children are not statistically sensitive to the mother's attitude toward wife beating. The policy implications of the results are discussed.
  • Yayın
    The state of property development in Turkey: facts and comparisons
    (Cambridge University Press, 2016-09-01) Demiralp, Seda; Demiralp, Selva; Gümüş, İnci
    In this article, we investigate economic and political developments in Turkey's construction sector over the last decade and consider their implications. We find that during the first term of the government of the Justice and Development Party (Adalet ve Kalklnma Partisi, AKP), thanks to administrative and economic incentives, both private and public construction rose considerably. Despite the construction sector's contribution to growth, there is also evidence of a transfer from the industrial sector toward the construction sector, which led to significant decline in the trend growth of the industrial sector in the era prior to 2006. Such evidence disappears in the post-crisis period, when the growth of private construction slows. However, overcentralization, clientelism, an absence of transparency, and limitations on citizen participation in urban planning remain as problems that need to be addressed through urban reform.
  • Yayın
    A mathematical model for perishable products with price- and displayed-stock-dependent demand
    (Elsevier Ltd, 2016-12) Önal, Mehmet; Yenipazarlı, Arda; Kundakçıoğlu, Ömer Erhun
    We introduce an economic order quantity model that incorporates product assortment, pricing and space-allocation decisions for a group of perishable products. The goal is to maximize the retailer's profit under shelf-space and backroom storage capacity constraints. We assume that the demand rate of a product is a function of the selling prices and the displayed stock levels of all the products in the assortment. We propose a Tabu Search based heuristic method to solve this complex problem.
  • Yayın
    Development of externalizing behaviors in the context of family and non-family relationships
    (Springer New York, 2016-02-04) Akçinar Yayla, Berna; Baydar, Nazlı
    A longitudinal model was presented, that included reciprocal associations between physically harsh parenting by the mother, child externalizing problems, and support from the father, the extended family, and the neighbors. This transactional process was estimated for the years preceding school entry. The data were from a 4-years longitudinal and nationally representative study of 1009 children and their mothers in Turkey. The results indicated that concurrently, physically harsh parenting and child externalizing problems were strongly associated. Controlling for their within domain stability and cross-domain concurrent correlation, changes in harsh parenting and changes in child externalizing behaviors had significant reciprocal effects in early childhood, although these effects were small. These reciprocal effects were smaller for observer reported harsh parenting than maternal reports. There was a role of the mesosystem in this developmental process. Increases in the support from the father, and the extended family and the neighbors predicted declines in the child externalizing behaviors subsequently. Reciprocally, high child externalizing and maternal physically harsh parenting predicted subsequent declines in the support from these sources. These results were consistent with the hypotheses that negative mother–child relationships could spill over to the other relationships of the mothers, and that positive and supportive relationships of the mother could constitute positive role models for the child.
  • Yayın
    Sensitivity analysis for models with multiple behavior modes: a method based on behavior pattern measures
    (2016-12) Hekimoğlu, Mustafa; Barlas, Yaman
    Sensitivity analysis of system dynamics models is essentially about sensitivity of patterns of output behaviors to inputs, since system dynamics modeling is behavior pattern oriented. In this study, a regression-based procedure for pattern sensitivity analysis is developed, by defining behavior pattern measures such as equilibrium level, trend, inflection point, or oscillation amplitude. A unique feature of the procedure is that it takes into account the possibility of a model generating multiple behavior modes. This pattern-oriented procedure is next applied to the tipping point project management model and a generic supply line model. These test applications yield sensitivity results that are meaningful, and also consistent with previously available sensitivity information about the parameters of these models. Finally, our pattern sensitivity analysis is shown to be a useful and effective method also for oscillatory system dynamics models, an unsolved sensitivity problem previously in the literature.
  • Yayın
    Failure of an exchange-rate-based stabilization plan in Turkey
    (M E Sharpe, 2003-02) Gökkent, Giyas; Moslares, Carlos; Amiel-Saenz, Rafael
    The Turkish exchange-rate-based stabilization plan adopted in 2000 has been a spectacular failure, lasting a mere fourteen months despite a relatively flexible peg regime and preannounced exit strategy. The final three months of the currency regime were marred by the eruption of a banking sector crisis that quickly developed into a currency crisis, quelled only by external loans and a blanket guarantee by the sovereign of all banking sector liabilities. This was ultimately to no avail as the lira was allowed to float following a full-fledged currency crisis in late February 2001. The usual indicators of crisis did not point to imminent turmoil in November 2000 despite widespread concern about eventual dire developments. To identify the source of the November crisis, one must weigh the factors that led economic agents, and banks in particular, to expect higher interest rates after the fall.