bluuebunny/crossref_metadata_2025_split huggingface dataset:
Moving average quality control: principles, practical application and future perspectives
Authors: van Rossum Huub H. 
Published: October 2018

AbstractMoving average quality control (MA QC) was described decades ago as an analytical quality control instrument. Although a potentially valuable tool, it is struggling to meet expectations due to its complexity and need for evidence-based guidance. For this review, relevant literature and the world wide web were examined in order to (i) explain the basic concepts and current understanding of MA QC, (ii) discuss moving average (MA) optimization methods, (iii) gain insight into practical aspects related to applying MA in daily practice and (iv) describe future prospects to enable more widespread acceptance and application of MA QC. Each of the MA QC optimization methods currently available has their own advantages and disadvantages. Recently developed simulation methods provide realistic error detecting properties for MA QC and are available for laboratories. Operational MA management issues have been identified that allow developers of MA software to upgrade their packages to support optimal MA QC application and guide laboratories on MA management issues, such as MA alarm workup. The new insights into MA QC characteristics and operational issues, together with supporting online tools, may promote more widespread acceptance and application of MA QC.
Two general schemes of algebraic cryptography
Authors: Roman’kov Vitaly 
Published: October 2018

AbstractIn this paper, we introduce two general schemes of algebraic cryptography. We show that many of the systems and protocols considered in literature that use two-sided multiplications are specific cases of the first general scheme. In a similar way, we introduce the second general scheme that joins systems and protocols based on automorphisms or endomorphisms of algebraic systems. Also, we discuss possible applications of the membership search problem in algebraic cryptanalysis. We show how an efficient decidability of the underlined membership search problem for an algebraic system chosen as the platform can be applied to show a vulnerability of both schemes. Our attacks are based on the linear or on the nonlinear decomposition method, which complete each other. We give a couple of examples of systems and protocols known in the literature that use one of the two introduced schemes with their cryptanalysis. Mostly, these protocols simulate classical cryptographic schemes, such as Diffie–Hellman, Massey–Omura and ElGamal in algebraic setting. Furthermore, we show that, in many cases, one can break the schemes without solving the algorithmic problems on which the assumptions are based.
Maximal subgroups of the modular and other groups
Authors: Jones Gareth A. 
Published: October 2018

Abstract
In 1933 B. H. Neumann constructed uncountably many subgroups of

SL
2

⁢

(
ℤ
)

{{\rm SL}_{2}(\mathbb{Z})}

which act regularly on the primitive elements of

ℤ
2

{\mathbb{Z}^{2}}

. As pointed out by Magnus, their images in the modular group

PSL
2

⁢

(
ℤ
)

≅

C
3

*

C
2

{{\rm PSL}_{2}(\mathbb{Z})\cong C_{3}*C_{2}}

are maximal nonparabolic subgroups, that is, maximal with respect to containing no parabolic elements.
We strengthen and extend this result by giving a simple construction using planar maps to show that for all integers

p
≥
3

{p\geq 3}

,

q
≥
2

{q\geq 2}

the triangle group

Γ
=

Δ
⁢

(
p
,
q
,
∞
)

≅

C
p

*

C
q

{\Gamma=\Delta(p,q,\infty)\cong C_{p}*C_{q}}

has uncountably many conjugacy classes of nonparabolic maximal subgroups. We also extend results of Tretkoff and of Brenner and Lyndon for the modular group by constructing uncountably many conjugacy classes of such subgroups of Γ which do not arise from Neumann’s original method. These maximal subgroups are all generated by elliptic elements, of finite order, but a similar construction yields uncountably many conjugacy classes of torsion-free maximal subgroups of the Hecke groups

C
p

*

C
2

{C_{p}*C_{2}}

for odd

p
≥
3

{p\geq 3}

. Finally, an adaptation of work of Conder yields uncountably many conjugacy classes of maximal subgroups of

Δ
⁢

(
2
,
3
,
r
)

{\Delta(2,3,r)}

for all

r
≥
7

{r\geq 7}

.
Crystal structure of (bis((1H-benzo[d]imidazol2-yl)methyl)amine-κ3N,N′,N′′)-(pyridine-2,6-dicarboxylato-κ3N,O,O′)zinc(II) — methanol — water (1/2/1), C25H28N6O7Zn
Authors: Gu Jin-Feng , Feng Rui , Nie Feng-Mei 
Published: October 2018

AbstractC25H28N6O7Zn, triclinic,P1̄ (no. 2),a= 7.8073(19) Å,b= 11.350(3) Å,c= 15.515(4) Å,α= 95.006(2)°,β= 101.828(3)°,γ= 102.050(4)°,V= 1303.8(5) Å3,Z= 2,Rgt(F) = 0.0429,wRref(F2) = 0.1153,T= 153(2) K.
Das Politische als Entpolitisierung der Politik
Authors: Hirsch Michael 
Published: October 2018

Zusammenfassung
Die in der politischen Theorie der Gegenwart inzwischen übliche Unterscheidung ‚des Politischen’ von der Politik im Sinne staatlicher Institutionen und Verwaltungsapparate wird in diesem Beitrag einer systematischen Kritik unterzogen. Dabei benutzt der Autor zunächst ein verfallstheoretisches normatives Schema des Linkantianismus. Es wird argumentiert, dass die analytische Aufspaltung zwischen einem ‚sachlichen’ Bereichs der Politik als staatliche Verwaltung gesellschaftlicher Teile und einem ‚sozialen’ Bereich der Instituierung der Gemeinschaft sich affirmativ verhält zu den faktischen Prozessen einer zunehmenden rechtlichen Entfesselung staatlichen Handelns aus demokratischer Kontrolle. Dem wird ein emphatisch aufklärerisches Paradigma radikaler Demokratie entgegengesetzt.
Die Destruktion der Gesellschaftstheorie: Ernesto Laclaus und Chantal Mouffes Versuch einer nicht-essentialistischen Politischen Philosophie
Authors: Kistner André 
Published: October 2018

Zusammenfassung
Das Buch Hegemony and Socialist Strategy ist von entscheidender Wichtigkeit, wenn man die Wende linker Theorieproduktion zum Postmodernismus verstehen will. Sie weisen dort die These des klassischen Marxismus, dass die objektive gesellschaftliche Entwicklung auf eine politische Veränderung der Gesellschaft zum Sozialismus hindränge, unter Bezugnahme auf eine linguistisch inspirierte Theorie des Politischen im Allgemeinen zurück. In diesem Zusammenhang eliminieren sie jedoch zugleich den Begriff der Gesellschaft als Gegenstand theoretischer Analyse und Kritik. An dessen Stelle tritt die Vielfalt der politischen Kämpfe um Hegemonie, die aber theoretisch weder begriffen noch bewertet werden können. Insofern ist der postmoderne Antiökonomismus Teil der modernen demokratischen Legitimationsideologie und von geringem theoretischen Wert.
Politischer Marxismus contra Postmarxismus
Authors: Wallat Hendrik 
Published: October 2018

Zusammenfassung
Ellen M. Wood hat mit ihrer Studie „Retreat from Class. A ‚new true socialism“ bereits 1986 eine überzeugende Kritik des Postmarxismus vorgelegt. Der Artikel zeichnet deren zentrale Punkte nach und zeigt, dass diese auf einer innovativen Interpretation des historischen Materialismus beruhen, die als ‚politischer Marxismus‘ bezeichnet wird. Gleichwohl bleibt zu fragen, ob Woods Kritik nicht zugleich Annahmen des klassischen Marxismus reproduziert, die historisch wie systematisch zweifelhaft sind.
Die „letzte Sinnlosigkeit“
Authors: Rickermann Jan 
Published: October 2018

Zusammenfassung
Erkannte der politische Existentialismus Schmitts noch in der Ausnahme das Lebendige gegenüber der in Wiederholung erstarrten Mechanik des Rechtsstaates, ist diese in Agambens Analyse der Souveränität längst zur Regel geworden. Sie schließt, als nicht abgeschlossener konstituierender Akt, durch Ausschluss, das Leben in das Recht ein. Politik wird damit zu einer fatalen Logik, die das nackte Leben absondert und letztlich der Vernichtung überantwortet. Die Suche nach einer Alternative, nach einer kommenden Politik, führt zur Figur des durch Ausschluss eingeschlossenen, zum homo sacer. An ihm wird die Möglichkeit des Widerstands festgemacht. Ausgehend vom homo sacer findet Agamben die Möglichkeit einer kommenden Politik in der Lebens-Form, einem Dasein, auf das die Macht keinen Zugriff mehr hat.
Paczka wiary, nóż nauki i kurz zwątpienia. Filozoficzno-literacki midrasz o dialogu nauka–filozofia–teologia
Authors: Sierotowicz Tadeusz 
Published: October 2018

W oparciu o osiągnięcia filozofii nauki i niektóre aspekty filozofii Józefa Tischnera esej rozwija literacko-filozoficzny model dialogu nauka–filozofia–teologia. Refleksja prowadząca do sformułowania modelu pozwala na inne spojrzenie na historię dysput nauka–wiara: podstawową kwestią dialogu staje się określenie dziedziny, w której możliwe jest rozwiązanie danego sformułowania problemu.
FROM “JIBARA” TO “CHIQUITA”: CONFESSIONS OF DIS-BELONGING IN ESMERALDA SANTIAGO’S MEMOIRS
Authors: ÇOKER Esra 
Published: October 2018

This paper by focusing on the intersection
of race, gender and identity as reflected in the three memoirs of the
Puerto-Rican American writer Esmeralda Santiago, When I was Puerto Rican (1993),
Almost a Woman (1998) and The Turkish Lover (2004), attempts to read into the
complex dynamics of the Puerto-Rican migrant female experience. Esmeralda
Santiago’s memoirs that intertwine the problem of transculturation with that of
male dominance and cultural patriarchy rest on her desire to find and sustain a
stable point of reference in a world marked by mobility, transitivity,
discontinuity and fragmentation. The feelings of vulnerability and invisibility
that she constantly experiences within her Puerto-Rican culture and later with
her Turkish lover lead her to resist rather than accept a gendered and
racialized self. However it also leads her to forge an identity “distinct from”
and “in conflict with” the significant Others around her. In When I was Puerto Rican, she is the black
jibara “Negi” highly critical and at odds with her Puerto/AmeRican island
heritage; in Almost A Woman, she is the lost young female Esmeralda trying to
rise above her mother, family and Nuyorican community; and in the The Turkish
Lover she is the Esmeralda Santiago who learns to judge her own self and others
through the social and racial categories and cultural standards of American
society. This paper asserts that unlike many women autobiographical writers,
Esmeralda Santiago can achieve to create a sense of belonging in her life only
through an assertion of difference and later through the contestation of her
Puerto-Rican female identity.
AW(k)-type Salkowski Curves in Euclidean 3-Space IE^3
Authors: KİŞİ İlim 
Published: October 2018

We deal with AW(k)-type Salkowski
(anti-Salkowski) curves with constant in the Euclidean
3-space. We show that there is no AW(1)-type Salkowski curve and AW(1)-type
anti-Salkowski curve in . Also, we handle weak AW(2)-type and weak AW(3)-type
Salkowski (anti-Salkowski) curves. Also, we show that there is no weak AW(2)-type
Salkowski curve in .
Damages of locomotor apparatus in children as a result of road accidents
Authors: Belokrylov N. M. , Ladeischikov V. M. , Schekolova N. B. , Belyakov S. A. , Belokrylov A. N. , Yagovkin M. A. 
Published: October 2018

Aim. To study the specific features of locomotor apparatus injuries and to improve the surgical tactics of treatment using low invasive osteosynthesis techniques in case of road accidents among children.
Materials and methods. The results of surgical treatment of 35 children (age range 2 to14 years) after road accidents were studied at the pediatric traumatology and orthopedics unit. Associated multisystem injuries of the locomotor system constituted 77,1 %. Clinicoroentgenological data, MRT and CT indices were studied. Vegetative dysfunction was assessed. All the patients underwent low invasive surgical intervention with minimized surgical approach, including elastic intramedullary nails, closed transcutaneous pin osteosynthesis under electro-optic transducer control, transosseous osteosynthesis.
Results. All the patients were operated, 80 % of them were operated during the first day after the admission to the hospital. It resulted in early arrest of pain syndrome, fast normalization of vegetative function, prevented the development of traumatic disease or stopped its manifestations. All the results of surgical treatment were estimated as positive. Insignificant contractures were observed in 2 patients after the distal comminuted fracture of the shoulder with decrease in movement amplitude at the level of elbow joint within 15%; no disability was noted; no slowed consolidation and false joints were registered.
Conclusions. Low invasive techniques provide optimal conditions for osseous consolidation and positive functional outcome after road accidents. It is recommended to take into account the status of vegetative functions in patients with associated multisystem injuries.
Analysis of follow-up observation efficiency criteria
Authors: Sandakov Ya. P. 
Published: October 2018

Aim. To carry out the comparative analysis of follow-up observation efficiency criteria among patients under medical check-up and persons, who had been followed up from the number of those, dead at home.
Material and methods. The age, duration of disease, duration of follow-up observation, real visits to a doctor, rate of exacerbations, emergency calls, hospitalizations were compared in two groups of patients under medical check-up. Group 1 – “dead” – included 100 persons from the number of those, dead at home; group 2 – “alive” – 400 patients, who at the moment of being studied were under follow-up observation. Medical records of ambulatory patients were used as the source of information. The obtained data were analyzed with the method of descriptive and inductive statistics.
Results. In the studied groups, the difference in patients’ mean age was significant t = 3,7 p = 0,0001, the share of persons of the same gender was similar p < 0,01, the difference in men’s mean age was not significant t = –0,21 p = 0,83. The average number of planned (t = 14,2 p = 0,0001) and real (t = 7,4 p = 0,0001) visits to a doctor, exacerbations (t = 9,6 p = 0,0001), emergency calls (t = 7,6 p = 0,0001), hospitalizations (t = 5,2 p = 0,0001), urgent hospitalizations (t = 6,6 p = 0,0001) was significantly higher in the group of “dead”.
Conclusions. The able-bodied men form the risk group regarding unfavorable outcome of noninfectious chronic diseases; follow-up observation does not promote development of loyalty to treatment.
Helicobacter pylori CagA IgG pozitifliğinin gastrointestinal yakınmalar ve histopatolojik bulgular ile ilişkisi
Authors: BAKIRCI ÜREYEN Sibel , EFE Cumali , NASIROĞLU İMGA Narin , KÖSEOĞLU Tankut , ÖZASLAN Ersan , TUNCA Hasan , SENNAROĞLU Engin 
Published: October 2018

Giriş ve Amaç: Güçlü immünojen ve sitotoksin olan Helicobacter
pylori CagA
dış membran proteinine karşı
oluşan IgG tipi antikorların tespitine dayanarak yapılan serolojik testlerin,
bu mikroorganizmaların neden olduğu patolojilerin tespitinde kullanımı son
yıllarda yaygınlaşmaktadır. Bu çalışmada, Helicobacter
pylori’ye karşı oluşmuş
CagA IgG antikorlarının gastrointestinal yakınmalar, histopatolojik ve demografik
veriler ile ilişkisinin
değerlendirilmesi amaçlandı.&nbsp;Gereç ve Yöntem: Farklı gastrointestinal yakınmalar ile
dahiliye polikliniğine başvurduktan sonra rutin değerlendirmelerinde üre nefes
testi ile Helicobacter pylori açısından pozitif olarak tespit edildikten sonra tanı amaçlı özofagogastroduodenoskopik biyopsi yapılan18
yaş üzeri toplam 74 hasta çalışmamıza dahil edildi. Bu hastalarda CagA proteinine ait özgül IgG antikor varlığını saptamak için Enzyme Linked Immunosorbent Assay yöntemi
kullanıldı.&nbsp;Bulgular: Yetmişdört hastanın 20’si kadın (%27) ve 54’ü erkekti (%73). Helicobacter pylori pozitif saptanan
hastaların %62’sinde CagA IgG pozitifliği saptandı. CagA
IgG pozitif hasta
grubunda en sık saptanan gastrointestinal şikayet karın ağrısı ve en sık
histopatolojik bulgu kronik aktif gastrit olarak tespit edildi.&nbsp;Sonuç: Helicobacter pylori enfeksiyonu
ile ilişkili patolojilerin erken tanısında daha
ucuz, pratik ve invaziv olmayan bu serolojik
testlerin kullanımının standardize edilmesi için uzun dönemli ve büyük örneklem
büyüklüğüne sahip çalışmaların yapılmasına ihtiyaç vardır.
Algoritmo semisupervisado de agrupamiento que combina SUBCLU y el agrupamiento basado en restricciones, para la detección de grupos en conjuntos de alta dimensionalidad
Authors: Calvo-Valverde Luis Alexander , Vallejos-Peña Alonso 
Published: October 2018

Los datos de alta dimensionalidad plantean un desafío para los algoritmos de agrupamiento tradicionales, ya que las medidas de similitud convencionales utilizadas por estos no son significativas cuando se aplican sobre el espacio completo de datos, por lo que afectan la calidad de los grupos. Ante esto, los algoritmos de agrupamiento de subespacios han sido propuestos como alternativa para encontrar todos los grupos en todos los espacios del conjunto de datos. Al detectar grupos en espacios de menor dimensionalidad, cada grupo detectado puede pertenecer a diferentes subespacios del conjunto de datos original. Consecuentemente, atributos que el usuario considere de interés pueden ser excluidos en algunos o todos los grupos, perdiendo información importante y reduciendo el valor del resultado para los analistas. En este proyecto, se propone un nuevo método que combina el algoritmo SUBCLU y el algoritmo de agrupamiento por restricciones, el cual permite al usuario identificar variables como atributos de interés con base en conocimiento previo del dominio, esto con el objeto de dirigir la detección de grupos hacia espacios que incluyan estos atributos y, por ende, generar grupos más significativos.
Tectônica do patrimônio industrial moderno: fábrica da bombril Nordeste, em Abreu e Lima [PE]
Authors: Melo Alcilia Afonso de Albuquerque e 
Published: October 2018

Este artigo possui como objeto de estudo, a tectônica do patrimônio industrial moderno, tomando como estudo de caso, a Fábrica da Bombril (1979/ 1983) - uma edificação localizada na BR-101 Norte, no município de Abreu e Lima, Região Metropolitana do Recife, Pernambuco. O objetivo do trabalho é trazer à tona o debate sobre a dimensão construtiva do patrimônio arquitetônico moderno industrial, as soluções empregadas no partido, em sistemas estruturais, peles, detalhes e na materialidade da obra, que contribuíram para a consolidação de uma linha de projetos desenvolvidos durante a modernidade. Salienta-se que, por ocasião da Conferência 2003 do TICCIH – The International Committee for the Conservation of the Industrial Heritage (Comissão Internacional para a Conservação do Patrimônio Industrial), foi extraído um documento, intitulado Carta de Nizhny Tagil (2003) que colocou que, todo o acervo do patrimônio industrial deve ser estudado, a sua história deve ser ensinada, a sua finalidade e o seu significado devem ser explorados e clarificados a fim de serem dados a conhecer ao grande público. Tal artigo trata-se de um dos resultados de investigações realizadas pelo Grupo de pesquisa Arquitetura e Lugar cadastrado na UFCG e no CNPq, que vem procurando resgatar, tanto a produção moderna, quanto àquela referente ao acervo arquitetônico industrial regional, realizando para isso, diálogos com pesquisadores que trataram dos temas, mesmo que com distintos enfoques.
The Effect of Resin Coated Proppant and Proppant Production on Convergent Flow Skin in Horizontal Wells with Transverse Fractures
Authors: Shaoul J. R. , Park J.. , Langford M.. 
Published: October 2018

Abstract
In the last decade, many gas reservoirs with permeabilities from 0.1 to 10 mD have been developed with horizontal wells with transverse fractures. The potential negativeimpact of convergent flow in the fracture seems to have been forgotten. The widespread use of resin coated proppant (RCP) in offshore wells appears to make this problem worse. Using both case studies and reservoir simulations, we examine why RCP could make the problem of convergent flow worse compared to uncoated proppant.
A number of North Sea horizontal and deviated multi-frac gas wells that used RCP and had a significant mechanical skin are presented. Pressure buildup data confirms the presence of a near-wellbore pressure drop in the fracture. Reservoir simulation with a fine grid reproduces the observed pressure drop, due to convergent flow, using realistic proppant pack permeabilities with gel damage.
The effect of proppant production on the convergent flow skin is shown using production data before and after discrete proppant production events, demonstrating how proppant production has a beneficial effect on removing convergent flow skin. We also compare the performance of a new horizontal multi-frac well to the original discovery well in the same location, where a vertical well was fracture stimulated with uncoated proppant, and had comparable productivity.
If there is a large convergent flow skin in a fracture with uncoated proppant, this usually leads to some proppant production, which could create "infinite conductivity" channels at the perforations. This removes the convergent flow pressure drop. If RCP is used to prevent proppant flowback, such channels cannot form easily and convergent flow acts as a downhole "choke" on production. This "choke" can produce a significant positive skin. In unfavorable cases, a horizontal multi-frac well with 3 or 4 transverse fractures will produce the same as a fully perforated vertical well with a single fracture.
Based on a number of real-world incidents of proppant production during the post-fracture cleanup, we show strong evidence that a small amount of proppant production can result in an increase in well PI and decrease in apparent fracture skin. Convergent flow is the most likely mechanism to explain this. This paper highlights the potential reduction in well productivity due to using resin coated proppant for fracturing in gas wells (0.1 to 10 mD) with limited inflow area (transverse or oblique fractures) where convergent flow pressure loss is significant. We show the potential positive effect of small amounts of proppant production in such cases, forming infinite conductivity channels and removing the convergent flow skin.