CCD Photometric Study and Period Investigation of Ah Tauri

Xiang, Fu-Yuan; Xiao, Ting-Yu; Yu, Yun-Xia

doi:10.1088/0004-6256/150/1/25

Cited by 10 publications

(2 citation statements)

References 34 publications

(36 reference statements)

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“…Figure 1 shows that the majority of the most her's aged were between (20-29) and father's age between (30)(31)(32)(33)(34)(35)(36)(37)(38)(39). 1and 1.1 shows two socio-demographic factors affecting the presence of autism in children using the correlation matrix analysis, among risk factors by using (principal component analysis PCA).…”

Section: Results: a Socio Demographic Factors Affecting Children With...mentioning

confidence: 99%

Assessment of The Risk Factors Affecting Children with Autism Spectrum Disorder in Kurdistan Region at Sulaimania City: Parental Perceptions

Kareem¹,

Azize²,

Muhammad³

2018

Kufa Jour. Nurs. Sci.

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Background: There is a lack of research in the assessment of autism risk factors affecting children in the Kurdistan Region.The aim: The present study has been carried out to find the parental perceptions about socio-demographic, prenatal, perinatal and neonatal factors associated with autistic children.Methodology: A descriptive cross sectional study was conducted in 120 autistic children's families, where their children diagnosed using the diagnostic and statistical manual of development disorder (DSM-5) (either mother or father) attending special school in Sulaimania city during October 2015 to June 2016. Factorial analysis (principal component analysis) was used in order to identify the effective factors affecting autism. Results: The characteristic of mother's socio-demographic data showed that the mother's mean age were (28.95 years, SD ± 6.320) and father's mean age was (34.10 years, SD ± 6.475). Prenatal factors showed (43.3%) were used medications while they were pregnant with their children. Mor than half (59.2%) of them were living in a very unhappy emotional status, which estimated as a second principle component affecting autism. Regarding the perinatal factors, more than half of the children were delivered through c/s and selected as the most effective factors affecting autism along with a prolong and induce labor. Conclusion: Overall, this study demonstrated four key factors such as, mother Socio- demographic, prenatal,perinatal and neonatal, each part has some factors shared common variance with other items.Recommendations: Much work will be needed to classify the specific types of autism. In addition, more appliedstudies are required in order to enhance the autistic children and their families quality of life

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Section: Results: a Socio Demographic Factors Affecting Children With...mentioning

confidence: 99%

Assessment of The Risk Factors Affecting Children with Autism Spectrum Disorder in Kurdistan Region at Sulaimania City: Parental Perceptions

Kareem¹,

Azize²,

Muhammad³

2018

Kufa Jour. Nurs. Sci.

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“…Compared with possible sinusoidal change (Lee et al 2007), the cyclic oscillations in O−C diagram of much more CCD times were usually explained by the light-travel time effect via the presence of a third body (Liao & Qian 2010;Qian et al 2011Qian et al , 2012Zhu et al 2013aZhu et al , 2013bQian et al 2015). The properties are similar to some A-type total-eclipse binaries, such as AU Tau (Xiang et al 2015a;Tvardovskyi et al 2018), V508 Oph (Xiang et al 2015b), EQ Tau (Li et al 2014).…”

Section: Discussionmentioning

confidence: 96%

New Photometric Investigations of G-type Contact Binary TU Boo

Wang

Meng

Jiang

et al. 2023

Res. Astron. Astrophys.

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Two sets of CCD photometric observations for contact binary TU Boo were obtained in 2020 and 2021, respectively. Different from its asymmetric light curves published from the literature, our BV RcIc-band curves show that the heights of maximum are almost equal. These distortions of light curves possibly indicate that the components have been active in past 25 yr, but they are stable in the last two years. For total-eclipse binary TU Boo, due to some star-spots on the surface of the components, the physical structure obtained by many investigators are different. Therefore, the symmetric multi-color light curves in 2020, 2021are important for understanding configuration and evolution for this system. By using the Wilson–Devinney (2013) program, it is confirmed that TU Boo is an A-type shallow-contact binary with the temperature difference of ∆T = 152K and fill-out of f = 14:67%. In the O–C diagram of orbital period analysis, a cyclic oscillation superimposed on a continuous decrease was determined. The long-term decreasing is often explained by the mass transfer from the more massive star to less massive one, this system will evolve into a deeper contact binary with time. The cyclic oscillations computed from much more CCD times of light minimum maybe result from the light-travel time effect via the presence of a third body. These characters of structure, evolution and ternary belong to typical A-type W UMa binaries with spectral G.

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The contact binary V344 Lacertae: is it a triple system?

Liu

Qian

et al. 2020

Astrophys Space Sci

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CCD Photometric Study and Period Investigation of Ah Tauri

Cited by 10 publications

References 34 publications

Assessment of The Risk Factors Affecting Children with Autism Spectrum Disorder in Kurdistan Region at Sulaimania City: Parental Perceptions

Assessment of The Risk Factors Affecting Children with Autism Spectrum Disorder in Kurdistan Region at Sulaimania City: Parental Perceptions

New Photometric Investigations of G-type Contact Binary TU Boo

The contact binary V344 Lacertae: is it a triple system?

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