bluuebunny/crossref_metadata_2025_split huggingface dataset:
Triple P (Positive Parenting Program): Theoretischer und empirischer Hintergrund und erste Erfahrungen im deutschsprachigen Raum
Authors: Cina Annette , Bodenmann Guy , Hahlweg Kurt , Dirscherl Thomas , Sanders Matthew R. 
Published: March 2021

This article reviews the theoretical and empirical background of Triple P (Positive Parenting Program). The aims of this prevention program as well as the different techniques that are used in order to help parents to improve their educational skills are presented. One main focus of this article is to draw the development of Triple P, its features and specifically its implementation in Europe. It is shown, how Triple P is disseminated in Germany and Switzerland and how parents rate their satisfaction and acceptance of Triple P in these two countries.
Zusammenfassung
Dieser Artikel stellt die theoretischen, empirischen und klinischen Grundlagen eines mehrstufigen erziehungs- und familienunterstützenden Präventionsprogramms (Triple P: Positive Parenting Program) dar, welches die Förderung elterlicher Erziehungskompetenzen und die Reduktion von Verhaltensproblemen und emotionalen Störungen bei Kindern und Jugendlichen zum Ziel hat. Der Beitrag stellt die einzelnen Interventionsmethoden, Trainingselemente, Formen von Triple P und dessen Neuerungen sowie insbesondere die Verbreitung und Implementierung des Elterngruppenprogramms in Deutschland und der Schweiz dar. Die empirischen Belege zur Wirksamkeit des Programms aus Australien sowie aus dem deutschsprachigen Raum werden resümiert und Schlussfolgerungen für die Untersuchung der weiteren Verbreitung des Programms dargestellt.
The influence of records management on tendering process in the public sector
Authors: Njue Egidio , Kyalo Teresia , Muchina Stephen 
Published: March 2021

This study aims to investigate the influence of record management in the tendering process in the public sector in the context of the Embu County Government, specifically the study sought to investigate the influence of training in record keeping and the filing system on tendering process in Embu county government. The study adopted a descriptive research design. The study used the census method for the 33 members of the tendering committee in the county government of Embu. The study adopted a census because the population was small. A structured questionnaire was used to collect data needed in the study. Both descriptive and inferential statistics were used to analyze quantitative data. Quantitative responses based on the Likert scale were coded in the computer using Statistical Package for Social Sciences (SPSS) version 22. Processed data were summarized in tables and then presented using simple frequencies and percentages. The study established that records management affected the tendering process. The study also revealed that the tendering process in the public sector is statistically significantly (P = 0.000) affected by records management. The study recommended that the County government of Embu should ensure that the tendering process is effective, by adopting advanced training in the record management and filing systems so as to maintain and secure all tender records in the procurement department.
Multidimensional well-being of residents affected by the Pak Mun Dam, Thailand
Authors: Chaiyamart Pattaraphongpan , Gartner William , DelMas Robert 
Published: March 2021

Understanding the effects on the overall well-being of the communities affected by the Pak Mun Dam construction would fill in the gaps in existing knowledge and facilitate a deeper discussion of the factors that impact overall wellbeing. The Pak Mun Dam was finished in 1994 and from that point on there have been changes affecting local residents. This study attempts to understand the impact of those changes from a well-being perspective using primary data collected from residents in villages close to the dam site. Structural Equation Model (SEM) was a method for this research analysis. Results from a structural model show that social and economic well-being are important factors that impact the overall well-being of the affected residents from the Pak Mun Dam area. Furthermore, we discuss how information from 20 items within seven dimensions of the well-being measurement model can be used to develop more efficient strategies and policies to increase well-being capital.
The role of the orthodontist in the early simulating plate rehabilitation of children with Down syndrome
Authors: Matthews-Brzozowska Teresa , Walasz Jolanta , Matthews-Kozanecka Maja , Matthews Zofia , Kopczyński Przemysław 
Published: March 2021

Introduction. Abnormalities in the oro-facial complex in children with Down syndrome can be corrected through oro-facial therapy which makes use of a palatal plate.Aim. The aim of this study was to present the therapeutic effects of orthodontic palatal plate therapy in children with Down syndrome.Material and methods. The study was conducted on 50 children with Down syndrome between the ages of 3 months and 2 years who were treated by means of stimulating plate therapy a period of two years.Results. The study found that in 50% children with Down syndrome who underwent palatal plate oro-facial rehabilitation there was a visual improvement of the mimetic muscles, tongue retraction as well as lip closure. Conclusions. The care by orthodontist and early palatal plate therapy ought to constitute an integral part of the comprehensive multidisciplinary rehabilitation of children with Down syndrome.
Invisible Encryption Communication Method based on WFRFT
Authors: Liu Fang , Chen Lizhi , Feng Yongxin 
Published: March 2021

Abstract
Considering that the open signal transmission mode can lead to the potential risk of interception, identification, decoding, and interference, high confidentiality is imperative for wireless communication. The security of communication process is typically ensured by encrypting and concealing transmitted information. The weighted fractional Fourier transform (WFRFT) technology can substantially change the signal characteristics, and the statistical characteristics of the signal diversify to effectively hide the communication information. In this paper, considering a single parameter-WFRFT as the breakthrough point, the in-depth investigation of the mechanism of a single-parameter fractional domain and the analysis of its potential micro-features and dark features are presented; accordingly, an invisible encryption method with vector jumping is proposed. The relationship between modulation order and constellation diagram is utilized, the jumping matrix and vector are thereafter established, and the control rules are formulated accordingly; furthermore, the dynamic modulation order is obtained by the jumping vector control. The new method can improve the security performance of the system and provide a technical basis for securing communication with anti-jamming, anti-interception, and anti-deception capability.
Design and Development of Novel Channel estimation method for OFDM based Underwater communication
Authors: M Asha , Surekha T P 
Published: March 2021

Abstract
The ocean is a constantly changing environment whose properties are still great Challenges to Developing Effective Underwater Wireless Communication represent. The high absorption of electromagnetic and optical signals in the water limits this Use and development of underwater electromagnetic communication systems. A possible approach to wireless underwater communication over longer distances (> 100m), offers acoustic signal transmission, modulation methods such as frequency shift keying are also used (FSK) and phase-shift keying (PSK) are used. In many areas the orthogonal frequency division multiplex method (Orthogonal Frequency Division Multiplexing, OFDM) is enforced for high data rates. It offers a multi-carrier transmission method Benefits in treating multipath propagation, nevertheless achieves a bandwidth efficiency similar to that of corresponding single-carrier processes. In recent studies, the OFDM methods are adopted for underwater communication. However the real time implementation is becoming a challenging part. The channel estimation plays vital role in underwater communication. In this research work, the novel sparse channel estimation in OFDM based underwater communication is proposed for long distances. The proposed algorithms are developed in fixed point manner which can be implemented in FPGA. The BER values are estimated for proposed algorithm and validated with the conventional algorithms. The proposed algorithms exhibits better results compared with the conventional algorithms.
An efficient FIR filter based on hardware sharing architecture using CSD coefficient grouping for wireless application
Authors: SRIVAST AJEET KUMAR , Raj Krishna 
Published: March 2021

Abstract
FIR filter is an essential part of digital signal processing that is extensively used in many areas such as wireless application and digital processing system. An efficient recursive filter is always required for real-time applications such as 5G network, smart robots and Internet of Things etc. The design of FIR filter is inherently stable and has a linear phase characteristic but its implementation often involves complexity and a large filter length to achieve specific design requirements. In this paper, the complexity of FIR filter is reduced by eliminating the repeated subexpression in a canonic sign digit(CSD)number system based filter operation. A new grouping method has been proposed for the CSD number system-based filter coefficient to minimize the number of unpaired nonzero bits in the filter coefficient. The statistical analysis of the proposed grouping method is performed and compared with other existing schemes. The number of unpaired nonzero bits in the proposed grouping scheme is reduced by an average of 24.11% as compared to other existing schemes. Further, an efficient FIR filter with hardware sharing architecture is designed and implemented to achieve a 14.65% reduction in average power consumption and the average operation speed is increased by 10.1% in comparison to the other existing filter structures.
An Improved Genetic Algorithm Based Annulus-sector Clustering Routing Protocol for Wireless Sensor Networks
Authors: Chu-hang Wang , Xiao-li Liu , Han Youjia , Huang-shui Hu , Sha-sha Wu 
Published: March 2021

Abstract
In wireless sensor networks, uniform cluster formation and optimal routing paths finding are always the two most important factors for clustering routing protocols to minimize the network energy consumption and balance the network load. In this paper, an improved genetic algorithm based annulus-sector clustering routing protocol called GACRP is proposed. In GACRP, the circular network is divided into sectors with the same size for each annulus, whose number is determined by calculating the minimum energy consumption of each annulus. Each annulus-sector forms a cluster and the best node in this annulus-sector is selected as cluster head. Moreover, an improved genetic algorithm with a novel fitness function considering energy and load balance is presented to find the optimal routing path for each CH, and an adaptive round time is calculated for maintaining the clusters. Simulation results show that GACRP can significantly improve the network energy efficiency and prolong the network lifetime as well as mitigate the hot spot problem.
Analytical Termination of Malicious nodes (ATOM): An Intrusion Detection System for Detecting Black Hole attack in Mobile Ad hoc Networks
Authors: Sivanesh S. , Dhulipala V R Sarma 
Published: March 2021

Abstract
The decentralized administration and the lack of an appropriate infrastructure causes the MANET prone to attacks. The attackers play on the vulnerable characteristics of the MANET and its underlying routing protocols such as AODV, DSR etc to bring about a disruption in the data forwarding operation. Hence, the routing protocols need mechanisms to confront and tackle the attacks by the intruders. This research introduces the novel Host-based Intrusion Detection System (HIDS) known as Analytical Termination of Malicious nodes (ATOM) that systematically detects one of the most significant black hole attacks that affects the performance of AODV routing protocol. ATOM IDS performs detection by computing the RREP count (Route Reply) and the packet drop value for each individual node. This system has been simulated over the AODV routing protocol merged with the black hole nodes and the resultant simulation scenario in NS2 has been generated. The trace obtained shows a colossal increase in the packet delivery ratio (pdr) and throughput. The results prove the efficacy of the proposed system.
Eliminating Selective Dropping Attack in Mobile Ad Hoc Network
Authors: Bounouni Mahdi , Bouallouche-Medjkoune Louiza , Beraza Abderrahmane , Daoud Adel 
Published: March 2021

Abstract
In this paper, we propose a new reputation approach, called I-WG (improved Watchdog). The aims is to eliminate selective dropping attack that occurs when malicious nodes drop packets at low rate to damage the network, while at the same time to avoid to be detected. The proposed approach is structured around four modules. The monitoring module overhears the forwarding activities of neighbors nodes using the promiscuous mode. The reputation module evaluates the nodes reputation values. We have have proposed a new reputation method that enable nodes to evaluate their neighbors in multiple monitoring sessions. Thus, the computed reputation value is used to determine the increment and decrement reputation rate. The exclusion module is responsible for excluding nodes with reputation values below the reputation threshold. The route selection module make restriction about discovered forwarding routes. Only forwarding routes satisfying the route incorporation threshold are accepted. The simulation results demonstrate that I-WG improves the success rate and reduces the number of packets dropped by malicious nodes, while increases the end-to-end delay.
Prenatal Diagnosis of Fetal Growth Restriction With Polyhydramnios: Etiology and Impact on Postnatal Outcome
Authors: Walter Adeline , Calite Elina , Berg Christoph , Gembruch Ulrich , Müller Andreas , Geipel Annegret 
Published: March 2021

Abstract
Purpose: To assess the spectrum of different etiologies, the intrauterine course, outcome and possible prognostic markers in prenatally detected fetal growth restriction (FGR) combined with polyhydramnios. Methods: Retrospective study of 153 cases with FGR combined with Polyhydramnios diagnosed by prenatal ultrasound over a period of 17 years. Charts were reviewed for ultrasound findings, prenatal and postnatal outcome. All cases were categorized into etiological groups and examined for differences.Results: Five etiological groups were identified: chromosomal anomalies (n= 64, 41.8 %), complex malformation syndromes (n=37, 24.1 %), isolated malformations (n=24, 15.7 %), musculoskeletal disorders (n=14, 9.2 %) and prenatal non-anomalous fetuses (n=14, 9.2 %). Subgroups showed significant disparities in initial diagnosis of combination of both pathologies, Ratio AFI/ gestational weeks and Doppler ultrasound examinations. Overall mortality rate was 64.7 %. Fetuses prenatally assigned to be non-anomalous, showed further complications in 42.9 % (n=6). Conclusion: Fetuses prenatally diagnosed with FGR combined with polyhydramnios are affected by a high morbidity and mortality. Five etiologic groups can be differentiated, showing significant disparities in prenatal and postnatal outcome. Even without recognizable patterns prenatally, long-term-follow up is necessary, as neurodevelopmental or growth delay may occur.
The expansion of the Universe may be an illusion created by Compton scattering of free electrons
Authors: Cheng GuanFeng 
Published: March 2021

Abstract
The two most precise gauges of the Universe’s expansion rate have recently been in glaring disagreement. The measurement of the Hubble parameter makes the Universe expansion theory more and more confusing, the cosmological redshift may not only be related to distance but also to other factors, and the expansion of the Universe may be just an illusion. The Compton effect of free electrons and low energy photons has been observed in the laboratory. This paper presents a theory: Free electron Compton scattering (FEC) may produce the illusion of the Universe expansion : Photons interact with a large n umber of free electrons on their way to us from a distant source. FEC causes photons to redshift (FEC redshift), and the photon beam expands along the propagation direction, these may produce the illusion of cosmic expansion (FEC cosmic model). FEC redshift is independent of wavelength, and proportional to distance and corresponding electron density, consistent with the Doppler effect of the expansion of the Universe. Flare redshift is a common phenomenon, and it is difficult to use the Doppler effect to explain alone, there is evidence of FEC redshift in flare redshift.
‘Comparison of Safety and Performance of Two Ophthalmic Viscosurgical Devices in Cataract Surgery’
Authors: işcan öznur , Acar Banu Torun , Tarakcı Burcu Nurozler 
Published: March 2021

Abstract
Purpose: To compare the safety and performance of two ophthalmic viscosurgical devices (OVDs) Bio-Hyalur SV (Sodium Hyaluronate 3.0%) (Biotech Healthcare Group, Luzern, Switzerland) and Protectalon (sodium hyaluronate 2.0%) (VSY Biotechnology, Turkey) in cataract surgery. Methods: One hundred twenty eyes of one hundred twenty patients who underwent phacoemulsification surgery were included in the study. Postoperatively sixty eyes using Bio-Hyalur-SV were classified as Group 1, and sixty eyes using Protectalon as Group 2. Patients aged 45 and over, Grade I, II or III unilateral / double stained cataract, healthy eyes creating cataract inclueded in this study . Endothelial cell morphological parameters including endothelial cell density (ECD), cell number, cell area, coefficient of variation (CV) in cell size, cell hexagonality and central corneal thickness (CCT) were measured preoperatively and at postoperative first week, first and third month visits.Intraocular pressure (IOP) was measured with an applanation tonometer at every visit. Results: . There was a statistically significant decrease in the mean ECD all follow-up times when compared with the preoperative visit (p=0.000). In terms of mean ECD levels there was no significant difference between the two groups within three months postoperatively (p=0.616) In the first week after surgery, there was an significant increase in CCT in Group 1 and Group 2 respectively (p=0.000). The IOP was <23 mmHg in all of the patients on the first day after surgery. There was no significant difference in the incidence of IOP peaks between the two groups in every vizits. In both groups, a significant increase was observed in the mean IOP at first day, first week, and first month after surgery compared to preoperative values (p=0.000). But no significant difference in IOP increase in Group 1 (P=0.092), Group 2 (P=0.013) compared to preoperative values ​​at third month postoperatively (p <0.001 significant with Bonferrotti correction). Conclusion: The two OVD’s used in this study during cataract surgery were safe and effective. Both OVD’s resulted in similar rates of transient IOP increases and corneal endothelial damage also provided good anterior chamber depth and were fairly easy to remove.
Revealing 3D atomic packing in liquid-like solids
Authors: Yuan Yakun , Kim Dennis , Zhou Jihan , Chang Dillan , Zhu Fan , Nagaoka Yasutaka , Yang Yao , Pham Minh , Osher Stanley , Chen Ou , Ercius Peter , Schmid Andreas , Miao Jianwei (John) 
Published: March 2021

Abstract
Liquids and solids are two fundamental states of matter. However, due to the lack of direct experimental determination, our understanding of the 3D atomic structure of liquids and amorphous solids remained speculative. Here we advance atomic electron tomography to determine for the first time the 3D atomic positions in monatomic amorphous materials, including a Ta thin film and two Pd nanoparticles. We observe that pentagonal bipyramids are the most abundant atomic motifs in these amorphous materials. Instead of forming icosahedra, the majority of pentagonal bipyramids arrange into a novel medium-range order, named the pentagonal bipyramid network. Molecular dynamic simulations further reveal that pentagonal bipyramid networks are prevalent in monatomic amorphous liquids, which rapidly grow in size and form icosahedra during the quench from the liquid state to glass state. The experimental method and results are expected to advance the study of the amorphous-crystalline phase transition and glass transition at the single-atom level.
Sleep problems and their interaction with physical activity and fatigue in hematological cancer patients during onset of high dose chemotherapy
Authors: CASTELLI LUCIA , Elter Thomas , Wolf Florian , Watson Matthew , Schenk Alexander , Steindorf Karen , Bloch Wilhelm , Hallek Michael , Joisten Niklas , Zimmer Philipp 
Published: March 2021

Abstract
Purpose Sleep problems reported by hematological cancer patients are usually linked to higher levels of cancer-related fatigue. Although the awareness of sleep problems in solid cancer patients is rising, there has been less attention to the issue in hematological cancer patients. The present study assesses the differences in sleep by comparing physical activity and fatigue levels among hematological cancer patients during the onset of chemotherapy. Furthermore, it investigates the relationship between sleep, physical activity, and fatigue through mediation analysis. Methods The recruited sample consists of 58 newly diagnosed hematological cancer patients (47.1 ± 15.4 yrs; 51.7% males). Subjects completed questionnaires assessing sleep (PSQI), physical activity (visual analogue scale), fatigue (MFI-20), anxiety, depression (HADS), and quality of life (EORTC QLQ-C30) within two weeks from starting treatment.Results The sample reported more sleep problems in comparison to the German population norm. The classification as good (ca 25%) or bad sleepers (ca 75%) showed less frequent physical activity (p = .04), higher fatigue (p = .032), anxiety (p = .003), depression (p = .011) and pain (p = .011) in bad sleepers. The mediation analysis revealed significant indirect effects of sleep on fatigue through physical activity habits.Conclusions This study highlights the combined action of sleep problems and physical activity on fatigue during the onset of induction chemotherapy. These two parameters could represent meaningful intervention targets to improve a patient’s status during chemotherapy.Trial registration The study was registered on the WHO trial register (DRKS00007824).