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  1. Article: Fieldworker effects on quality of data collected on sensitive questions in National Family Health Surveys: An analysis based on intimate partner violence in India.

    Singh, Saurabh / Dwivedi, Laxmi Kant / Jana, Somnath

    SSM - population health

    2023  Volume 25, Page(s) 101557

    Abstract: National Family Health Survey (NFHS) has played a pivotal role in formulating policies and programs by providing nationally representative data on a wide range of monitoring and impact evaluation indicators in population, health and nutrition. However, ... ...

    Abstract National Family Health Survey (NFHS) has played a pivotal role in formulating policies and programs by providing nationally representative data on a wide range of monitoring and impact evaluation indicators in population, health and nutrition. However, due to measurement errors resulting in misreporting, the collection of accurate data on sensitive issues in sample surveys has always been a matter of concern. This study examines the fieldworker effect on the reporting of physical, sexual, and emotional Intimate Partner Violence (IPV) using fifth round of NFHS (2019-21) data in India. The cross-classified multi-level model was used to examine the fieldworker's effect on the reporting of IPV. The fieldworker effect accounted for around 32% of total variation in the reporting of intimate partner violence. The fieldworker's effect varied from 26% to 41 % for physical violence, 29% to 33% for emotional IPV and 30%-36% for sexual IPV. It was observed that variation due to fieldworker for non-sensitive outcomes was negligible.Of total variation, only 1.6% for information related to ever attending school, 4.8% for ever given birth, 5% for currently pregnant and 8.5% for information on ever terminated pregnancy was being explained by the fieldworker. Our results indicate a significant fieldworker influence on the likelihood of reporting intimate partner violence, underlining the need for an increased understanding of the impact of fieldworkers on data outputs, especially-but not exclusively-when queries contain delicate or stigmatized themes. This study highlights the importance of providing extra guidance and special training to the fieldworkers when collecting sensitive information related to IPV.
    Language English
    Publishing date 2023-11-10
    Publishing country England
    Document type Journal Article
    ISSN 2352-8273
    ISSN 2352-8273
    DOI 10.1016/j.ssmph.2023.101557
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: Role of seasonality variation in prevalence and trend of childhood wasting in India: An empirical analysis using National Family Health Surveys, 2005-2021.

    Dwivedi, Laxmi Kant / Bhatia, Mrigesh / Bansal, Anjali / Mishra, Rahul / P, Shirisha / Jana, Somnath / Subramanian, S V / Unisa, Sayeed

    Health science reports

    2023  Volume 6, Issue 2, Page(s) e1093

    Abstract: Background: Wasting develops over a short period and can be reversed with short-term interventions. The prevalence of wasting typically varies from season to season-becoming higher during the monsoon (June to September) season as compared to the winter ( ...

    Abstract Background: Wasting develops over a short period and can be reversed with short-term interventions. The prevalence of wasting typically varies from season to season-becoming higher during the monsoon (June to September) season as compared to the winter (October to January) and summer (February to May) seasons every year in a cyclical fashion. However, to the best of our knowledge, using nationally representative demographic surveys to extensively study the impact of the timing of the survey on the results and trends around wasting has not been done so far.
    Objectives: The goal of this study is to ascertain whether seasonality has an impact on the trend and levels of wasting between NFHS-3 (2005-2006) and NFHS-5 (2019-2021).
    Methods: The analysis was based on data on 51,555, 259,627, and 232,920 children under 5 years included in NFHS-3, NFHS-4, and NFHS-5 respectively. Multivariable logistic regression analysis and the predicted probabilities approach were employed to examine the effect of the months of interview on the prevalence of wasting. The analysis was conducted for 9 states of India which had data for comparable months to compute wasting levels.
    Results: We found that at the national level, wasting increased in India by one per cent from NFHS-3 to NFHS-4 but declined by 2% from NFHS-4 to NFHS-5. The results show that seasonality significantly influenced the prevalence of wasting. It was observed that compared to January, the odds of wasting were particularly higher in summer and monsoon seasons, especially in the month of August across all three rounds, indicating the influence of seasonality in the prevalence of wasting in the country.
    Discussion: The prevalence of wasting in India needs to be interpreted across seasonal changes as seasonality affects many of the variables intrinsically related to child health and nutritional status.
    Language English
    Publishing date 2023-02-16
    Publishing country United States
    Document type Journal Article
    ISSN 2398-8835
    ISSN (online) 2398-8835
    DOI 10.1002/hsr2.1093
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article: Using the photoinduced

    Jana, Somnath / Muralidhar, Shreyas / Åkerman, Johan / Schüßler-Langeheine, Christian / Pontius, Niko

    Structural dynamics (Melville, N.Y.)

    2021  Volume 8, Issue 4, Page(s) 44304

    Abstract: We study the optical-pump induced ultrafast transient change of x-ray absorption ... ...

    Abstract We study the optical-pump induced ultrafast transient change of x-ray absorption at
    Language English
    Publishing date 2021-08-05
    Publishing country United States
    Document type Journal Article
    ZDB-ID 2758684-4
    ISSN 2329-7778
    ISSN 2329-7778
    DOI 10.1063/4.0000108
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article: Survey implementation process and interviewer effects on skipping sequence of maternal and child health indicators from National Family Health Survey: An application of cross-classified multilevel model.

    Sharma, Radhika / Dwivedi, Laxmi Kant / Jana, Somnath / Banerjee, Kajori / Mishra, Rakesh / Mahapatra, Bidhubhusan / Sahu, Damodar / Singh, S K

    SSM - population health

    2022  Volume 19, Page(s) 101252

    Abstract: Implementing a large-scale survey involves a string of intricate procedures exposed to numerous types of survey errors. Uniform and systematic training protocols, comprehensive survey manuals, and multilayer supervision during survey implementation help ... ...

    Abstract Implementing a large-scale survey involves a string of intricate procedures exposed to numerous types of survey errors. Uniform and systematic training protocols, comprehensive survey manuals, and multilayer supervision during survey implementation help reduce survey errors, providing a consistent fieldwork environment that should not result in any variation in the quality of data collected across interviewers and teams. With this background, the present study attempts to delineate the effect of field investigator (FI) teams and survey implementation design on the selected outcomes. Data on four of the bigger Empowered Action Group (EAG) states of India, namely Uttar Pradesh, Madhya Pradesh, Bihar, and Rajasthan, were obtained from the fourth round of the National Family Health Survey (NFHS-4) for analysis. A fixed-effect binary logistic regression model was used to assess the effect of FI teams and survey implementation design on the selected outcomes. To study the variation in the outcome variables at the interviewer level, a cross-classified multilevel model was used. Since one interviewer had worked in more than one primary sampling unit (PSU) & district and did not follow a perfect hierarchical structure, the cross-classified multilevel model was deemed suitable. In addition, since NFHS-4 used a two-stage stratified sampling design, two-level weights were adjusted for the models to compute unbiased estimates. This study demonstrated the presence of interviewer-level variation in the selected outcomes at both inter- and intra-field agencies across the selected states. The interviewer-level intra-class correlation coefficient (ICC) for women who had not availed antenatal care (ANC) was the highest for eastern Madhya Pradesh (0.23) and central Uttar Pradesh (0.20). For 'immunisation card not seen', Rajasthan (0.16) and western Uttar Pradesh (0.13) had higher interviewer-level ICC. Interviewer-level variations were insignificant for women who gave birth at home across all regions of Uttar Pradesh. Eastern Madhya Pradesh, Rajasthan, and Bihar showed higher interviewer-level variation across the selected outcomes, underlining the critical role of agencies and skilled interviewers in different survey implementation designs. The analysis highlights non-uniform adherence to survey protocols, which implies that not all interviewers and agencies performed in a similar manner in the field. This study recommends a refined mechanism for field implementation and supervision, including focused training on the challenges faced by FIs, random vigilance, and morale building. In addition, examining interviewer-level characteristics, field challenges, and field agency effects may also highlight the roots of interviewer-level variation in the data. However, based on the interviewer's performance in the field, the present study offers an intriguing insight into interviewer-level variations in the quality of data.
    Language English
    Publishing date 2022-10-03
    Publishing country England
    Document type Journal Article
    ISSN 2352-8273
    ISSN 2352-8273
    DOI 10.1016/j.ssmph.2022.101252
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article ; Online: Studies of the synthesis of providencin: construction and assembly of two major subunits.

    White, James D / Jana, Somnath

    The Journal of organic chemistry

    2014  Volume 79, Issue 2, Page(s) 700–710

    Abstract: The "northern" sector of the cembranoid diterpene providencin containing a tetrasubstituted cyclobutane was synthesized from the bis(acetonide) of d-glucose using dicyclopentadienylzirconium(0)-mediated oxygen abstraction from a furanose. Oxidative ... ...

    Abstract The "northern" sector of the cembranoid diterpene providencin containing a tetrasubstituted cyclobutane was synthesized from the bis(acetonide) of d-glucose using dicyclopentadienylzirconium(0)-mediated oxygen abstraction from a furanose. Oxidative scission of the vinyl substituent of this cyclobutane gave an aldehyde, which was reacted with an alkynylstannane to provide an allenol. Cyclization of the derived allenone with silver nitrate led to a cyclobutylfuran comprising the northern subunit of providencin. The "southern" sector of the cembranoid skeleton containing a trisubstituted iodoalkene attached to an α-phenylselenyl-γ-lactone was synthesized from (R)-glycidol. Negishi carbometalation-iodination established the (E)-iodoalkene, and addition of the lithio dianion of phenylselenoacetic acid to a tosylate generated the substituted lactone. The two sectors were joined via stannylation of the furan of the northern component followed by Stille cross-coupling of the furylstannane with the iodoalkene of the southern subunit. Linkage of the two segments was also made at C12-C13 of providencin using intermolecular aldol condensation of the enolate from the selenyl lactone of the southern portion with an acetaldehyde appendage on the cyclobutane of the northern sector. Closure of the providencin macrocycle from these conjoined subunits was unsuccessful.
    MeSH term(s) Cyclobutanes/chemistry ; Diterpenes/chemical synthesis ; Diterpenes/chemistry ; Hydrocarbons, Iodinated/chemistry ; Lactones/chemistry ; Molecular Conformation
    Chemical Substances Cyclobutanes ; Diterpenes ; Hydrocarbons, Iodinated ; Lactones ; providencin
    Language English
    Publishing date 2014-01-17
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't ; Research Support, U.S. Gov't, Non-P.H.S.
    ZDB-ID 123490-0
    ISSN 1520-6904 ; 0022-3263
    ISSN (online) 1520-6904
    ISSN 0022-3263
    DOI 10.1021/jo402485h
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article: Studies of the Synthesis of Providencin: Construction and Assembly of Two Major Subunits

    White, James D / Jana Somnath

    Journal of organic chemistry. 2014 Jan. 17, v. 79, no. 2

    2014  

    Abstract: The “northern” sector of the cembranoid diterpene providencin containing a tetrasubstituted cyclobutane was synthesized from the bis(acetonide) of d-glucose using dicyclopentadienylzirconium(0)-mediated oxygen abstraction from a furanose. Oxidative ... ...

    Abstract The “northern” sector of the cembranoid diterpene providencin containing a tetrasubstituted cyclobutane was synthesized from the bis(acetonide) of d-glucose using dicyclopentadienylzirconium(0)-mediated oxygen abstraction from a furanose. Oxidative scission of the vinyl substituent of this cyclobutane gave an aldehyde, which was reacted with an alkynylstannane to provide an allenol. Cyclization of the derived allenone with silver nitrate led to a cyclobutylfuran comprising the northern subunit of providencin. The “southern” sector of the cembranoid skeleton containing a trisubstituted iodoalkene attached to an α-phenylselenyl-γ-lactone was synthesized from (R)-glycidol. Negishi carbometalation–iodination established the (E)-iodoalkene, and addition of the lithio dianion of phenylselenoacetic acid to a tosylate generated the substituted lactone. The two sectors were joined via stannylation of the furan of the northern component followed by Stille cross-coupling of the furylstannane with the iodoalkene of the southern subunit. Linkage of the two segments was also made at C12–C13 of providencin using intermolecular aldol condensation of the enolate from the selenyl lactone of the southern portion with an acetaldehyde appendage on the cyclobutane of the northern sector. Closure of the providencin macrocycle from these conjoined subunits was unsuccessful.
    Keywords acetaldehyde ; cleavage (chemistry) ; condensation reactions ; cross-coupling reactions ; diterpenoids ; glucose ; organic chemistry ; oxygen ; silver nitrate
    Language English
    Dates of publication 2014-0117
    Size p. 700-710.
    Publishing place American Chemical Society
    Document type Article
    ZDB-ID 123490-0
    ISSN 1520-6904 ; 0022-3263
    ISSN (online) 1520-6904
    ISSN 0022-3263
    DOI 10.1021%2Fjo402485h
    Database NAL-Catalogue (AGRICOLA)

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  7. Article: Synthesis of tetranor-PGE1: A urinary metabolite of prostaglandins E1 and E2

    Kimbrough, Jennifer R / Jana, Somnath / Kim, Kwangho / Allweil, Alexander / Oates, John A / Milne, Ginger L / Sulikowski, Gary A

    Tetrahedron letters. 2020 May 28, v. 61, no. 22

    2020  

    Abstract: Prostaglandin E2 is produced in response to inflammation, often associated with human disease. As prostaglandins are rapidly metabolized, quantification of end urinary metabolites depend on chemical synthesis of isotopically labeled standards to support ... ...

    Abstract Prostaglandin E2 is produced in response to inflammation, often associated with human disease. As prostaglandins are rapidly metabolized, quantification of end urinary metabolites depend on chemical synthesis of isotopically labeled standards to support metabolite quantification. A concise synthesis of tetranor-PGE1 is described including a late stage incorporation of an isotopically labeled side-chain.
    Keywords chemical reactions ; chemical structure ; human diseases ; inflammation ; isotope labeling ; metabolites ; prostaglandins ; synthesis
    Language English
    Dates of publication 2020-0528
    Publishing place Elsevier Ltd
    Document type Article
    ZDB-ID 204287-3
    ISSN 1873-3581 ; 0040-4039
    ISSN (online) 1873-3581
    ISSN 0040-4039
    DOI 10.1016/j.tetlet.2020.151922
    Database NAL-Catalogue (AGRICOLA)

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  8. Article ; Online: The synthesis of indoline and benzofuran scaffolds using a Suzuki-Miyaura coupling/oxidative cyclization strategy.

    Jana, Somnath / Rainier, Jon D

    Organic letters

    2013  Volume 15, Issue 17, Page(s) 4426–4429

    Abstract: The generation of indolines and benzofurans from the combination of Suzuki-Miyaura coupling reactions with oxidative cyclizations is described. ...

    Abstract The generation of indolines and benzofurans from the combination of Suzuki-Miyaura coupling reactions with oxidative cyclizations is described.
    MeSH term(s) Benzofurans/chemical synthesis ; Benzofurans/chemistry ; Catalysis ; Cyclization ; Indoles/chemical synthesis ; Indoles/chemistry ; Molecular Structure ; Oxidation-Reduction
    Chemical Substances Benzofurans ; Indoles ; indoline (6DPT9AB2NK)
    Language English
    Publishing date 2013-08-16
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't ; Research Support, U.S. Gov't, Non-P.H.S.
    ISSN 1523-7052
    ISSN (online) 1523-7052
    DOI 10.1021/ol401974v
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  9. Book ; Online: Using the photo-induced $L_3$ resonance shift in Fe and Ni as time reference for ultrafast experiments at low flux soft X-ray sources

    Jana, Somnath / Muralidhar, Shreyas / Åkerman, Johan / Schüßler-Langeheine, Christian / Pontius, Niko

    2021  

    Abstract: We study the optical-pump induced ultrafast transient change of the X-ray absorption at the $L_3$ absorption resonances of the transition metals Ni and Fe in Fe$_{0.5}$Ni$_{0.5}$ alloy. We find the effect for both elements to occur simultaneously on a ... ...

    Abstract We study the optical-pump induced ultrafast transient change of the X-ray absorption at the $L_3$ absorption resonances of the transition metals Ni and Fe in Fe$_{0.5}$Ni$_{0.5}$ alloy. We find the effect for both elements to occur simultaneously on a femtosecond timescale. This effect may hence be used as a handy cross-correlation scheme providing a time-zero reference for ultrafast optical-pump soft X-ray-probe measurement. The method benefits from a relatively simple experimental setup as the sample itself acts as time-reference tool. In particular, this technique works with low flux ultrafast soft X-ray sources. The measurements are compared to the cross-correlation method introduced in an earlier publication.

    Comment: 12 pages, 3 figures
    Keywords Condensed Matter - Materials Science
    Publishing date 2021-06-15
    Publishing country us
    Document type Book ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  10. Article: The Synthesis of Indoline and Benzofuran Scaffolds Using a Suzuki–Miyaura Coupling/Oxidative Cyclization Strategy

    Jana, Somnath / Rainier Jon D

    Organic letters. 2013 Sept. 06, v. 15, no. 17

    2013  

    Abstract: The generation of indolines and benzofurans from the combination of Suzuki–Miyaura coupling reactions with oxidative cyclizations is described. ...

    Abstract The generation of indolines and benzofurans from the combination of Suzuki–Miyaura coupling reactions with oxidative cyclizations is described.
    Keywords Suzuki reaction ; benzofurans ; chemical structure
    Language English
    Dates of publication 2013-0906
    Size p. 4426-4429.
    Publishing place American Chemical Society
    Document type Article
    ISSN 1523-7052
    DOI 10.1021%2Fol401974v
    Database NAL-Catalogue (AGRICOLA)

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