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[Context] Study replication is essential for theory building and empirical validation. [Problem] Despite its empirical vocation, requirements engineering (RE) research has given limited attention to study replication, threatening thereby the ability to verify existing results and use previous research as a baseline. [Solution] In this perspective paper, we -- a group of experts in natural language processing (NLP) for RE -- reflect on the challenges for study replication in NLP for RE. Concretely: (i) we report on hands-on experiences of replication, (ii) we review the state-of-the-art and extract replication-relevant information, and (iii) we identify, through focus groups, challenges across two typical dimensions of replication: data annotation and tool reconstruction. NLP for RE is a research area that is suitable for study replication since it builds on automated tools which can be shared, and quantitative evaluation that enable direct comparisons between results. [Results] Replication is hampered by several factors, including the context specificity of the studies, the heterogeneity of the tasks involving NLP, the tasks' inherent hairiness, and, in turn, the heterogeneous reporting structure. To address these issues, we propose an ID card whose goal is to provide a structured summary of research papers, with an emphasis on replication-relevant information. [Contribution] We contribute in this study with: (i) a set of reflections on replication in NLP for RE, (ii) a set of recommendations for researchers in the field to increase their awareness on the topic, and (iii) an ID card that is intended to primarily foster replication, and can also be used in other contexts, e.g., for educational purposes. Practitioners will also benefit from the results since replications increase confidence on research findings.

The Natural Language Processing for Requirements Engineering Workshop (NLP4RE) was established in 2018 as a venue to foster communication between researchers and practitioners interested in the field. The 2021 edition was held virtually in Essen, due to the COVID-19 pandemic, and saw the presentation of 10 papers covering different aspects of NLP4RE, including information extraction (e.g., rationale, causality), requirements classification and chat-bots. The workshop saw a lively participation, with over 25 participants during the keynote and about 20 participants during the paper presentation sessions.

The iStar 2.0 modeling language is the result of a two-year community effort intended at providing a solid, unified basis for teaching and conducting research with i*. The language was released with important qualities in mind, such as keeping a core set of primitives, providing a clear meaning for those primitives, and flattening the learning curve for new users. In this paper, we propose a list of qualities against which we intend iStar 2.0 to be evaluated. Furthermore, we describe an empirical evaluation plan, which we devise in order to assess the extent to which the language meets the identified qualities and to inform the development of further versions of the language. Besides explaining the objectives and steps of our planned empirical studies, we make a call for involving the research community in our endeavor.

Plasma Zinc (Zn) and retinol binding protein (RBP) were simultaneously measured in 40 and 30 apparently healthy, pregnant Turkish women longitudinally. The studied subjects were divided into poorly nourished (PN) and well nourished (WN) groups on the basis of "nutritional history." Mean plasma Zn level was significantly lower in PN pregnant women as compared to the WN counterparts. Mean IRBP level was not different from that of controls. Furthermore. "nutrition" did not have an effect on RBP level throughout pregnancy. J. Trace Elem. Exp. Med. 14:11-16. 2001. (C) 2001 Wiley-Liss, Inc.

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In this paper, we report on the development of a webbased platform for Participatory Architectural Change Management in Air Traffic Management Systems (ATM) as part of the SESAR H2020 project PACAS. The platform is the result of an iterative requirements engineering process that actively involves ATM domain experts, starting from stakeholder analysis, to requirements elicitation, scenario definition, and validation.

Yüksek Lisans Tezi, Çalışmamızın amacı hacamat yaptıran farklı yaşlardaki kadınlardan, eş zamanda alınan kupa kanı ve venöz kanda oksidatif stres ile ilişkili olduğu düşünülen miR-21, miR-34a ve miR-200'ün ekspresyon seviyelerini ve oksidatif stresin biobelirteci olarak tanımlanan malondialdehid (MDA) ve glutatyon (GSH) düzeylerini tespit etmektir. Bu çalışma Konya Necmettin Erbakan Üniversitesi Meram Tıp Fakültesi Geleneksel ve Tamamlayıcı Tıp Merkezine başvuran hacamat yaptırmak isteyen kadın katılımcılar üzerinde gerçekleştirildi. Katılımcılar 20-45 yaş aralığında 30 kadın ve 45-75 yaş aralığında 30 kadın, toplamda 60 kadından oluşturuldu. Çalışmamızda gruplandırma şu şekilde yapıldı; grup 1, venöz kanında 25-45 yaş arası kadınlar, grup 2, venöz kanında 45-75 yaş arası kadınlar, grup 3, hacamat kanında 25-45 yaş arası kadınlar, grup 4, hacamat kanında 45-75 yaş arası kadınlar. Çalışmaya dahil edilen katılımcılardan kâhil noktası hacamat kanı ve rutin amaçla alınan venöz kanı alındı. Hem hacamat hem venöz kandan elde edilen serum örneklerinde MDA ve Glutatyon ölçümleri ELISA yöntemi ile yapıldı. Yine hem hacamat hem venöz kandan elde edilen plazma örneklerinde ise miR-21, miR-34a ve miR-200 ölçümleri Real Time PCR yöntemi ile yapıldı. Çalışmamızda yapılan ANOVA testi sonucuna göre grupların plazma miR-21 (p, Expression levels of miR-21, miR-34a, and miR-200, which are thought to be related to simultaneous trophic blood and venous calm oxidative stress, are determined from women of different ages who have had the intended habits of our work, and malondialdehid (MDA) and glutathione (GSH) levels identified as oxidative stress. This study was carried out on female participants who wanted to make a cupping therapy, which is applied to Konya Necmettin Erbakan University Meram Medical Faculty Traditional and Complementary Medical Center. Participants were 30 women in the 20-45 age range and 30 women in the 45-75 age range, totaling 60 women. In our study, grouping was done as follows; group 1, women between 25 and 45 years of age in venous blood, group 2, women between 45 and 75 years of age in venous blood, group 3, women between 25 and 45 years of age in cupping therapy blood, women in group 4, women between 45 and 75 years of age. The venous blood obtained from the participant included in the study and venous blood taken for routine purposes were taken. MDA and Glutathione measurements were performed by ELISA in both serum and venous blood samples. In plasma samples obtained from both hematocytes and venous blood, measurements of miR-21, miR-34a and miR-200 were performed by Real Time PCR. A statistically significant difference was found between plasma miR-21 (p

Yüksek Lisans Tezi, Çalışmamızda fizyolojik süreçlerin transkripsiyonel düzenleyicileri olarak ortaya çıkan ve lipit metabolizması ile ilişkilendirilen bazı mikroRNA' ların (miR-33, miR-335, miR-370 ve miR-758) egzersiz ve sedanter yaşamı benimsemiş kişilerde plazma seviyelerini araştırmayı amaçladık. Yöntem: Katılımcılar profesyonel spor yaptığı belirlenen (30 kişi) ve sedanter yaşam tarzını sürdüren (30 kişi) kadınlar şeklinde iki gruba ayrıldı. Sporculardan egzersiz öncesinde (grup 1) ve sonrasında (grup 2), sedanter yaşamı benimsemiş kişilerdende (grup 3) kan plazma örnekleri alındı. Plazma miRNA seviyeleri RT-PCR yöntemi kullanılarak analiz edildi. Bulgular: Yapılan ANOVA testi sonucuna göre grupların plazma miR-33 (p, We aim to investigate the plasma levels of some microRNAs (miR-33, miR-335, miR-370 and miR-758) in our study, which appeared as transcriptional regulators of physiological processes and were associated with lipid metabolism in exercise and sedentary life. Method: Participants were divided into two groups, women designated as professional sports (30 people) and women exercising the sedanter lifestyle (30 people). Blood plasma samples were taken from the athletes before exercise (group 1) and after (group 2), and those with sedentary life (group 3). Plasma miRNA levels were analyzed using RT-PCR method. Results: According to the ANOVA test results, there was a statistically significant difference between plasma miR-33 (p

In this study, Cr(VI) adsorption ability of hazelnut husk carbon (HHC) was examined by investigating various parameters such as initial pH of the solution, agitation time and initial concentration using batch mode adsorption. The carbon was prepared by the treatment of hazelnut husk with sulfuric acid for 24 h at ambient temperature. The HHC showed high affinity towards to Cr(VI) ions at pH of 1.0. The equilibration time was found to be 16 h. Cr(VI) adsorption equilibrium was analyzed by Langmuir and Freundlich isotherm equations. The adsorption of Cr(VI) on the HHC was well described with Langmuir model with maximum adsorption capacity of 344.83 mg g(-1). Also, the adsorption kinetics of Cr(VI) was followed by pseudo second order kinetic model. At the end, single stage batch adsorber was designed using the adsorption data.