Determinants of singleness among women aged 40 and over in Algeria: what relation to the labor market?

The decrease in the average age of marriage and the increase in loneliness among women in Algeria is a phenomenon that is becoming increasingly visible in society. In the coming years, the number of single people will increase. This article analyses the factors leading to increased loneliness among women aged 40 and over in Algeria based on data from the MICS6/2019 survey. The minimum age threshold was chosen because it corresponds to the age after which the probability of first marriage is almost zero based on Algerian statistics. The methodology of this study is stepwise Wald logistic regression. The paper built regression models based on two samples: the first (24,681 women aged 40 and over) and the second (4,329 women aged 50-54). For an empirical study of loneliness among women, it is proposed to analyze the following determinants: type of employment, type of social protection, place of residence, level of education, and age. Based on the results of the research, four main conclusions were formed. First, the odds of being single are 14.1 times and 4.23 times higher among job-seeking and working women, respectively, compared to non-working women. Due to the loss of hope to get married, women choose career development instead of building a family union. Under these conditions, women integrate into the labor market late. Since most of this category is unemployed and not of retirement age, they have low health insurance coverage. Based on this, to create decent living conditions for single women aged 40 and older, it is advisable to launch a program to improve the qualifications of these women, find ways to integrate them into the working environment and provide them with health insurance. Secondly, the long-term trend indicates that loneliness as a psychological phenomenon will increase every year in society, which will, accordingly, contribute to the strengthening of the imbalance in the marriage market. Late marriage and declining fertility are indicators of new patterns of behavior brought about by economic and social change. Thirdly, the level of well-being is also a statistically significant factor influencing the loneliness of women. Middle-class women are 1.27 times more likely to be single than upper-class women. Fourth, the survey revealed significant regional differences. Women in Algeria’s north-eastern and north-central regions are more likely to remain single. These results can be further explored through qualitative research

What are we measuring? A critique of range of motion methods currently in use for Dupuytren's disease and recommendations for practice

Background: Range of motion is the most frequently reported measure used in practice to evaluate outcomes. A goniometer is the most reliable tool to assess range of motion yet, the lack of consistency in reporting prevents comparison between studies. The aim of this study is to identify how range of motion is currently assessed and reported in Dupuytren’s disease literature. Following analysis recommendations for practice will be made to enable consistency in future studies for comparability. This paper highlights the variation in range of motion reporting in Dupuytren’s disease. Methods: A Participants, Intervention, Comparison, Outcomes and Study design format was used for the search strategy and search terms. Surgery, needle fasciotomy or collagenase injection for primary or recurrent Dupuytren’s disease in adults were included if outcomes were monitored using range of motion to record change. A literature search was performed in May 2013 using subject heading and free-text terms to also capture electronic publications ahead of print. In total 638 publications were identified and following screening 90 articles met the inclusion criteria. Data was extracted and entered onto a spreadsheet for analysis. A thematic analysis was carried out to establish any duplication, resulting in the final range of motion measures identified. Results: Range of motion measurement lacked clarity, with goniometry reportedly used in only 43 of the 90 studies, 16 stated the use of a range of motion protocol. A total of 24 different descriptors were identified describing range of motion in the 90 studies. While some studies reported active range of motion, others reported passive or were unclear. Eight of the 24 categories were identified through thematic analysis as possibly describing the same measure, ‘lack of joint extension’ and accounted for the most frequently used. Conclusions: Published studies lacked clarity in reporting range of motion, preventing data comparison and meta-analysis. Percentage change lacks context and without access to raw data, does not allow direct comparison of baseline characteristics. A clear description of what is being measured within each study was required. It is recommended that range of motion measuring and reporting for Dupuytren’s disease requires consistency to address issues that fall into 3 main categories:- Definition of terms Protocol statement Outcome reportin

Electron Device Modelling for Millimeter-Wave Wideband Wireless Systems

Electron device modelling requires accurate descriptions of parasitic passive structures connecting the intrinsic electron device to the external world. In conventional approaches, the parasitic phenomena are described by a network of lumped elements. As an alternative, a distributed description can be conveniently adopted. This choice has been proved very appropriate when dealing with device scaling and very high operating frequencies. In this paper, a distributed parasitic network is adopted in association with a nonlinear electron device model. In particular, it is shown how an equivalent intrinsic device and a suitably-defined distributed parasitic network can be accurately defined and modelled on the basis of standard measurements and easy electromagnetic simulations. Wide experimental validation based on GaAs and InP PHEMTs will be provided, showing accurate prediction capabilities both under small- and large signal conditions. The proposed model is shown to perform optimally even after periphery scaling

Nonlinear Modelling of InP Devices for W-band Applications

A recently proposed technique for the distributed modeling of extrinsic parasitic effects in electron devices is used for the very first time in conjunction with a lumped equivalent circuit model for the intrinsic device. Nonlinear modeling of 0.1 mm InP HEMTs for W-band applications is considered here, leading to extremely accurate predictions of harmonic distortion and power added efficiency at the fundamental frequencies of 27 and 94 GHz. The distributed parasitic network is identified through accurate electromagnetic simulations up to the upper frequency limit of the millimeter-wave band (300 GHz), while standard pulsed I/V and S-parameter measurements up to 67 GHz are used for the identification of the intrinsic device model

Comparison Of Yarrowia Lipolytica Lipase Immobilization Yield Of Entrapment, Adsorption, And Covalent Bond Techniques

The purpose of this study was to immobilize lipase from Yarrowia lipolytica using three methods including inclusion, adsorption, and covalent bond to study enzyme leaching, storage, and catalytic properties. Sodium alginate and chitosan were the polymers selected to immobilize lipase by inclusion. The beads of each polymer were dried by freeze drying and fluidization. The results show that chitosan was more adapted to the inclusion of lipase. Even though freeze dried, bead activity was low compared to that of fluidized beads. The freeze-drying process seems to produce suitable beads for storage at 4 and 20 °C. The immobilization by adsorption was carried out on both celite and silica gel. Maximum immobilization yield of 76% was obtained with celite followed by 43% in silica gel. The enzyme adsorbed on the two supports exhibited greater stability at a certain temperature (50 °C) and in no polar solvents (Isooctane, n-heptane, and n-hexane). In addition, the lipase immobilized by covalent bond retained residual activity equitable to 70%. It was demonstrated that the enzyme immobilized by covalent bond showed greater activity (80%) after 5 months of storage