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  1. Article ; Online: Some Subclasses of Univalent and Bi-Univalent Functions Related to K-Fibonacci Numbers and Modified Sigmoid Function

    Amal Madhi Rashid / Abdul Rahman S. Juma

    Baghdad Science Journal, Vol 20, Iss

    2023  Volume 3

    Abstract: This paper is interested in certain subclasses of univalent and bi-univalent functions concerning to shell- like curves connected with k-Fibonacci numbers involving modified Sigmoid activation function θ(t)=2/(1+e^(-t) ) ,t ≥0 in unit disk |z|<1 . For ... ...

    Abstract This paper is interested in certain subclasses of univalent and bi-univalent functions concerning to shell- like curves connected with k-Fibonacci numbers involving modified Sigmoid activation function θ(t)=2/(1+e^(-t) ) ,t ≥0 in unit disk |z|<1 . For estimating of the initial coefficients |c_2 | , |c_3 |, Fekete-Szego ̈ inequality and the second Hankel determinant have been investigated for the functions in our classes.
    Keywords Bi-univalent function ; Borel distribution ; Fibonacci numbers ; Modified sigmoid function ; Univalent function ; Science ; Q
    Language Arabic
    Publishing date 2023-06-01T00:00:00Z
    Publisher College of Science for Women, University of Baghdad
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  2. Article ; Online: Factors associated with self-reported sun exposure in a multi-ethnic community sample from New Zealand.

    Rahman, Juma / Scragg, Robert

    The Journal of steroid biochemistry and molecular biology

    2022  Volume 221, Page(s) 106131

    Abstract: Sun exposure, the main source of vitamin D, may have beneficial effects in humans, including for cardiovascular health. However, little is known about the characteristics related to sun exposure. Previous studies have surveyed participants with a ... ...

    Abstract Sun exposure, the main source of vitamin D, may have beneficial effects in humans, including for cardiovascular health. However, little is known about the characteristics related to sun exposure. Previous studies have surveyed participants with a demographic profile that is restricted by sex and ethnicity. We carried out an analysis to identify factors associated with self-reported sun exposure in a large multi-ethnic study of men and women. The study was a cross-sectional analysis of baseline data collected in a large vitamin D supplementation randomized controlled trial. The weekly amount of sun exposure in the past three months was assessed using a questionnaire. Multivariable prevalence ratios (PR) of high sun exposure (≥ 15 h/ week) associated with demographic and lifestyle variables were calculated using Poisson regression to adjust for covariates. A P-value of < 0.05 (2-tail) was used to determine statistical significance. A total of 5039 participants aged 50-84 years were analysed, who comprised 330 Pacific Islanders, 267 Māori, 242 South Asian and 4200 Other ethnicities (mostly European ancestry). For demographic variables, high sun exposure was associated with sex (higher in males), ethnicity (highest in Māori, lowest in South Asian), and education (highest in those completing secondary level education), but was lowest in the oldest age-group (80-84 years). For lifestyle variables, high sun exposure was associated with higher levels of alcohol drinking, TV watching and physical activity, but was not associated with tobacco smoking. Weekly sun exposure was lower in participants who were overweight or obese (compared to those with normal body mass index), and in those who reported a skin reaction to sun exposure of burning only (compared to those who reported tanning). These associations remained when all variables were included in the same model. In conclusion, several demographic and lifestyle factors were associated independently with the sun exposure, the primary source of vitamin D. Understanding how these factors are associated with sun exposure may refine strategies to minimise vitamin D deficiency.
    MeSH term(s) Cross-Sectional Studies ; Ethnicity ; Female ; Humans ; Male ; New Zealand/epidemiology ; Self Report ; Sunlight ; Vitamin D ; Vitamin D Deficiency/epidemiology ; Vitamins
    Chemical Substances Vitamins ; Vitamin D (1406-16-2)
    Language English
    Publishing date 2022-05-24
    Publishing country England
    Document type Journal Article ; Randomized Controlled Trial ; Research Support, Non-U.S. Gov't
    ZDB-ID 1049188-0
    ISSN 1879-1220 ; 0960-0760
    ISSN (online) 1879-1220
    ISSN 0960-0760
    DOI 10.1016/j.jsbmb.2022.106131
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    In stock of ZB MED Cologne/Königswinter

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  3. Article ; Online: On Harmonic Functions by using Ruscheweyh-Type Associated with Differential Operators

    Mohammed Fathi / Abdul Rahman Juma

    Al-Rafidain Journal of Computer Sciences and Mathematics, Vol 15, Iss 2, Pp 55-

    2021  Volume 62

    Abstract: By applying Ruscheweyh - type harmonic function on the class AS H (λ,α,k,γ), a new subclass ℋRq(m, α, k, γ) for harmonic univalent function in the unit disk D is introduced, Furthermore, some geometric properties are obtained such as distortion theorem, ... ...

    Abstract By applying Ruscheweyh - type harmonic function on the class AS H (λ,α,k,γ), a new subclass ℋRq(m, α, k, γ) for harmonic univalent function in the unit disk D is introduced, Furthermore, some geometric properties are obtained such as distortion theorem, sufficient coefficient bounds ,extreme points and convex combination conditions for aforementioned subclass.
    Keywords harmonic functions ; univalent function ; distortion theorem ; ruscheweyh type q- differential operator ; Mathematics ; QA1-939 ; Electronic computers. Computer science ; QA75.5-76.95
    Language Arabic
    Publishing date 2021-12-01T00:00:00Z
    Publisher Mosul University
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  4. Article ; Online: Third Order Differential Subordination for Analytic Functions Involving Convolution Operator

    Nihad Hameed Shehab / Abdul Rahman S. Juma

    Baghdad Science Journal, Vol 19, Iss

    2022  Volume 3

    Abstract: In the present paper, by making use of the new generalized operator, some results of third order differential subordination and differential superordination consequence for analytic functions are obtained. Also, some sandwich-type theorems are presented. ...

    Abstract In the present paper, by making use of the new generalized operator, some results of third order differential subordination and differential superordination consequence for analytic functions are obtained. Also, some sandwich-type theorems are presented.
    Keywords Science ; Q
    Language Arabic
    Publishing date 2022-06-01T00:00:00Z
    Publisher College of Science for Women, University of Baghdad
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  5. Article ; Online: Effects of time to treatment initiation on outcomes for soft tissue sarcomas.

    Ryu, Jae Hong / Rahman, Juma / Deo, Shaneel / Flint, Michael

    Journal of surgical oncology

    2023  Volume 127, Issue 7, Page(s) 1174–1186

    Abstract: Background and objectives: Few studies have investigated the effects of time to treatment initiation (TTI) for soft tissue sarcomas (STS). Our objective was to investigate the risk factors for prolonged TTI and the effects of prolonged TTI on local ... ...

    Abstract Background and objectives: Few studies have investigated the effects of time to treatment initiation (TTI) for soft tissue sarcomas (STS). Our objective was to investigate the risk factors for prolonged TTI and the effects of prolonged TTI on local recurrence free survival (LRFS), distant metastasis free survival (DMFS), and disease specific survival (DSS).
    Method: Patients diagnosed with high-grade STS of the extremities and trunk from 2011 to 2020 were included. TTI was grouped into two groups (treatment provided in less than vs. more than or equal to 30 days). Two-year and 5-year survival probabilities were calculated for LRFS, DMFS, and DSS. Cox regression and Kruskal-Wallis tests in univariate analysis were conducted to find risk factors affecting TTI and the survival outcomes.
    Results: In the univariate analysis, diagnosis in the later 5-year period of the study, tumor size, and treatment modality were associated with prolonged TTI. TTI ≥30 days was associated with higher DMFS but no association was found with LRFS or DSS. Tumor size, surgical margins, and provision of surgery were associated with DSS.
    Conclusion: Despite the delay in treatment for STS patients caused by the COVID-19 pandemic, our study showed TTI of more than 30 days does not negatively impact patients.
    MeSH term(s) Humans ; Time-to-Treatment ; Pandemics ; Retrospective Studies ; COVID-19 ; Sarcoma/pathology ; Extremities/pathology ; Soft Tissue Neoplasms/surgery ; Neoplasm Recurrence, Local/pathology ; Prognosis
    Language English
    Publishing date 2023-03-20
    Publishing country United States
    Document type Journal Article
    ZDB-ID 82063-5
    ISSN 1096-9098 ; 0022-4790
    ISSN (online) 1096-9098
    ISSN 0022-4790
    DOI 10.1002/jso.27237
    Database MEDical Literature Analysis and Retrieval System OnLINE

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    In stock of ZB MED Cologne/Königswinter

    Zs.A 706: Show issues Location:
    Je nach Verfügbarkeit (siehe Angabe bei Bestand)
    bis Jg. 1994: Bestellungen von Artikeln über das Online-Bestellformular
    Jg. 1995 - 2021: Lesesall (1.OG)
    ab Jg. 2022: Lesesaal (EG)

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  6. Article ; Online: Knowledge, attitudes, and practices towards fetal alcohol spectrum disorder in the New Zealand social and community sector: An online survey.

    McCormack, Jessica C / Chu, Joanna Ting Wai / Wilson, Holly / Rahman, Juma / Marsh, Samantha / Bullen, Chris

    Journal of intellectual disabilities : JOID

    2023  , Page(s) 17446295231172234

    Abstract: Background: ...

    Abstract Background:
    Language English
    Publishing date 2023-04-24
    Publishing country England
    Document type Journal Article
    ZDB-ID 2071898-6
    ISSN 1744-6309 ; 1469-0047 ; 1744-6295
    ISSN (online) 1744-6309
    ISSN 1469-0047 ; 1744-6295
    DOI 10.1177/17446295231172234
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  7. Article ; Online: Differential Subordination and Superordination of Multivalent Functions Involving Differential Operator

    Huda Fawzi Isawi / Abdul Rahman S. Juma

    Mustansiriyah Journal of Science, Vol 32, Iss 3, Pp 26-

    2021  Volume 31

    Abstract: In the present work, we derive some properties of subordination and superordination results associated with the Hadamard product concept involving the composition of the differential operator. ...

    Abstract In the present work, we derive some properties of subordination and superordination results associated with the Hadamard product concept involving the composition of the differential operator.
    Keywords differential operator ; differential subordination ; differential superordination ; hadamard product ; multivalent function ; Science ; Q
    Language Arabic
    Publishing date 2021-06-01T00:00:00Z
    Publisher Al-Mustansiriyah University
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  8. Article ; Online: Certain Subclasses of Meromorphic Univalent Function Involving Differential Operator

    Teba Rzaij Al-Kubaisi / AbdulRahman Salman Juma

    Mustansiriyah Journal of Science, Vol 31, Iss 4, Pp 80-

    2020  Volume 86

    Abstract: The main object of the present paper is to introduce the class of meromorphic univalent function K* (σ,τ,S) defined by differential operator with study some geometric properties like coefficient inequality , growth theorem and distortion theorem, radii ... ...

    Abstract The main object of the present paper is to introduce the class of meromorphic univalent function K* (σ,τ,S) defined by differential operator with study some geometric properties like coefficient inequality , growth theorem and distortion theorem, radii of starlikeness and convexity of f(z) in the class K* (σ,τ,S) .Also the concept of convolution (Hadamard product) investigate and Neighborhoods of the elements of class K* (σ,τ,S) are obtained.
    Keywords meromorphic univalent function ,differential operator,hadamard product ; starlike function,convex function,neighborhood ; Science ; Q
    Language Arabic
    Publishing date 2020-12-01T00:00:00Z
    Publisher Al-Mustansiriyah University
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  9. Article ; Online: How Frequently Do We Touch Facial T-Zone

    Juma Rahman / Jubayer Mumin / Bapon Fakhruddin

    Annals of Global Health, Vol 86, Iss

    A Systematic Review

    2020  Volume 1

    Abstract: Background: Researchers across the world are emphasising the importance of hand-washing and limited touching of face to curb the spread of COVID-19. However, access to safe water and hygiene is inadequate in many places around the globe; hence T-zone ... ...

    Abstract Background: Researchers across the world are emphasising the importance of hand-washing and limited touching of face to curb the spread of COVID-19. However, access to safe water and hygiene is inadequate in many places around the globe; hence T-zone touching restriction is considered more worthwhile compared to other prevention strategies. Aim: A systematic review was carried out to appraise the frequency of T-zone (eyes, nose, mouth, chin) touching in humans to comprehend the challenge of its restriction, and thus support public health professionals to produce evidence synthesis guidance for public. For this systemic review, data were collected by keyword searching, and several online databases were searched. The PRISMA checklist, PECO protocol and STROBE guideline were followed in this review, and pooled data were analysed in R version 4. Result: Total of 10 single arms observational studies were included. The pooled average (SD) facial self-touch per hour was 50.06 (±47) times, and a specific touch of T-zone was 68.7 (±27). T-zone self-touch within the total facial self-touch was found higher R = 0.680, with 95% CI 0.14, 0.91, P = 0.02 and X2 = 167.63, P < 0.0001. Conclusion: The review found that face-touch is a type of consistent regulatory movements. Control of T-zone touch requires extensive behaviour intervention and community awareness.
    Keywords Infectious and parasitic diseases ; RC109-216 ; Public aspects of medicine ; RA1-1270 ; covid19
    Subject code 306
    Language English
    Publishing date 2020-07-01T00:00:00Z
    Publisher Ubiquity Press
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  10. Article ; Online: How Frequently Do We Touch Facial T-Zone: A Systematic Review.

    Rahman, Juma / Mumin, Jubayer / Fakhruddin, Bapon

    Annals of global health

    2020  Volume 86, Issue 1, Page(s) 75

    Abstract: Background: Researchers across the world are emphasising the importance of hand-washing and limited touching of face to curb the spread of COVID-19. However, access to safe water and hygiene is inadequate in many places around the globe; hence T-zone ... ...

    Abstract Background: Researchers across the world are emphasising the importance of hand-washing and limited touching of face to curb the spread of COVID-19. However, access to safe water and hygiene is inadequate in many places around the globe; hence T-zone touching restriction is considered more worthwhile compared to other prevention strategies.
    Aim: A systematic review was carried out to appraise the frequency of T-zone (eyes, nose, mouth, chin) touching in humans to comprehend the challenge of its restriction, and thus support public health professionals to produce evidence synthesis guidance for public.For this systemic review, data were collected by keyword searching, and several online databases were searched. The PRISMA checklist, PECO protocol and STROBE guideline were followed in this review, and pooled data were analysed in R version 4.
    Result: Total of 10 single arms observational studies were included. The pooled average (SD) facial self-touch per hour was 50.06 (±47) times, and a specific touch of T-zone was 68.7 (±27). T-zone self-touch within the total facial self-touch was found higher R = 0.680, with 95% CI 0.14, 0.91, P = 0.02 and X
    Conclusion: The review found that face-touch is a type of consistent regulatory movements. Control of T-zone touch requires extensive behaviour intervention and community awareness.
    MeSH term(s) Betacoronavirus ; COVID-19 ; Coronavirus Infections/transmission ; Face ; Hand Disinfection ; Humans ; Pandemics ; Pneumonia, Viral/transmission ; SARS-CoV-2 ; Touch
    Keywords covid19
    Language English
    Publishing date 2020-07-06
    Publishing country United States
    Document type Journal Article ; Systematic Review
    ZDB-ID 2821756-1
    ISSN 2214-9996 ; 2214-9996
    ISSN (online) 2214-9996
    ISSN 2214-9996
    DOI 10.5334/aogh.2956
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