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Relevant bibliographies by topics / Johnson's formulae

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Academic literature on the topic 'Johnson's formulae'

Author: Grafiati

Published: 5 June 2025

Last updated: 2 August 2025

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Journal articles on the topic "Johnson's formulae"

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Prajapati, Darshit G., and Riddhi M. Patel. "Comparison of various method of fetal birth weight estimation in term pregnancy." International Journal of Reproduction, Contraception, Obstetrics and Gynecology 7, no. 3 (2018): 1058. http://dx.doi.org/10.18203/2320-1770.ijrcog20180892.

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Introduction: Knowledge of fetal weight in utero is vital for the obstetrician in deciding whether or not to deliver the fetus as well as in fixing the mode of delivery. Both low birth weight and excessive fetal weight at delivery are associated with increased risk of newborn complications during labor and the puerperium. Various clinical formulae like Johnson's formula & Dare's formula and USG are in use for fetal weight estimation.Objectives: The aim of this study was to assess the fetal weight in term pregnancies by various methods- Dare’s formula, Johnson's formula and Hadlock's formul

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Kumari, Ragini, Kumar Amit, and Vijaya. "Estimation of Fetal Weight by Clinical Methods and Ultrasound and Correlating its Accuracy with Actual Birth Weight in Term Pregnancies at ANMMCH, Gaya, Bihar." International Journal of Pharmaceutical and Clinical Research 16, no. 6 (2024): 1734–38. https://doi.org/10.5281/zenodo.12746586.

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<strong>Objective:</strong> This study was to estimate the fetal weight in term pregnancy by clinical methods and ultrasound and to compare the results with actual birth weight (ABW). <strong>Material and Methods:</strong> This study was conducted at Department of Obstetrics and Gynaecology, Anugrah Narayan Magadh Medical College and Hospital, Gaya, Bihar from July 2021 to June 2022. It was a prospective study covering 200 pregnant women at term gestation. <strong>Results:</strong> Estimated birth weight by abdominal girth × symphysis fundal height (AG × SF

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Grover, Sonal, Krishna Dahiya, Jyotsna Sen, and Nirmala Duhan. "Role of Fetal Thigh Circumference in Estimation of Birth Weight by Ultrasound." Donald School Journal of Ultrasound in Obstetrics and Gynecology 4, no. 4 (2010): 461–65. http://dx.doi.org/10.5005/jp-journals-10009-1168.

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ABSTRACT Objective To evaluate the accuracy and usefulness of predicting birth weight by measuring fetal thigh circumference by ultrasound and to compare with other conventional methods like Johnson's and Hadlock's. Methods In 100 pregnant women, ultrasonic measurements of mid-thigh circumference, along with BPD, FL and AC were done within 48 hours before delivery. Birth weights were estimated by Johnson's clinical method, Hadlock's and Vintzileos’ method. Statistical analysis of various ultrasound birth weight formulae in different weight categories was done and compared with each other, and

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Ankita, Ranjan, Divyamala Kumari, and Gaurav Kumar. "A Hospital Based Comparative Study Estimating Fetal Weight using Johnsons Formula and the Actual Birth Weight of Newborn Babies Born." International Journal of Current Pharmaceutical Review and Research 15, no. 10 (2023): 238–42. https://doi.org/10.5281/zenodo.11623049.

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AbstractAim: The aim of the present study was to regulate the fetal weight precision by means of Johnson’s formula andcomparing it as per the definite birth weight.Methods: The present study was conducted in the Department of Obstetrics and Gynaecology for 12 months .Study included a total of 200 pregnant women attending the OPD with full term pregnancy till onset of labour,fulfilling the inclusion criteria.Results: Mean birth weight Johnson’s formulae and actual birth weight was 3.16 Kg and 2.75 Kg respectively.Majority of the children were 2.5-3 kgs followed by 3-3.5 kgs. Johnson

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Li, L.-Y., C.-Y. Wu, and C. Thornton. "A theoretical model for the contact of elastoplastic bodies." Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science 216, no. 4 (2001): 421–31. http://dx.doi.org/10.1243/0954406021525214.

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The paper presents a theoretical model for the normal contact of a rigid sphere with an elastic-perfectly plastic half-space or an elastic-perfectly plastic sphere with a rigid wall. Formulae describing the force-displacement relationship for static contact problems and the coefficient of restitution for dynamic impact problems are derived. The present model can be considered as a modification of Johnson's model by using a more detailed pressure distribution function which is based on finite element analysis (PEA) results and considering the variation in the curvature of the contact surface du

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Alirezaei, Somayeh, Elham Azmoude, and Asma Ghaderi. "Error Analysis for Determination of Accuracy of Johnson’s Formula, Dare’s Formula and Mother's Opinion for the Estimation of Birth Weight: Results of an Iranian Cross‐Sectional Study." Acta Facultatis Medicae Naissensis 35, no. 4 (2018): 320–29. http://dx.doi.org/10.2478/afmnai-2018-0034.

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Abstract Accurate fetal weight estimation is important for the management of birth. According to the existing literature, none of the clinical techniques is superior to any other. This study aimed to compare error analysis for the determination of the accuracy of Johnson’s formula, Dare’s formula and mother's opinion for the estimation of birth weight. A cross-sectional study involving 147 full-term, cephalic, singleton pregnancies, was performed. The mother’s opinion was recorded and Johnson’s and Dare’s formulas were used to calculate the fetal weight. Accuracy was determined by percentage e

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Herawati, Netti, Herinawati Herinawati, Ajeng Galuh Wuryandari, Ry Eny Mian Marisi Simanjuntak, and Miftahul Jannah. "Perbandingan Ketepatan Formula Risanto dan Johnson Toshack dalam Menentukan Taksiran Berat Janin." Jurnal Akademika Baiturrahim Jambi 11, no. 2 (2022): 331. http://dx.doi.org/10.36565/jab.v11i2.592.

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Measurement of uterine fundal height (TFU) to determine the estimated fetal weight (TBJ) is an important component of antenatal care in labor management. Babies born with low body weight or born with very large body weight are associated with increased complications during labor and the puerperium. This study aims to compare the accuracy of the Risanto and Johnson Toshack formulas in determining the estimated fetal weight. The design of this study was cross-sectional, with the sample being parturient mothers in the PMB working area of the Tangkit Health Center in 2022 who met the inclusion cri

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Kansara, Dr Tejalben, Dr Nikhil Anand, and Dr Neha Makwana. "Comparative Study for Estimation of Fetal Weight by Various Clinical Methods and its Correlation with Actual Birth Weight." December 2022 14, no. 2 (2022): 99–105. http://dx.doi.org/10.56018/bjkines20221215.

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Introduction:Fetal weight, in conjunction with gestational age, is an important indicator of pregnancy outcome.Accurate estimation of fetal weight is of paramount importance in the management of labor and delivery and it also help in avoidance of complications associated with fetal excessive or low-birth-weight babies, thereby decreasing perinatal morbidity and mortality. Various clinical formulae like Johnson’s formula & Dare’s formula are in use for fetal weight estimation. Aim of the study was to assess the fetal weight in term pregnancy by various clinical methods- Dare’s formula &

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Simanjuntak, Leo Jumadi, and Patrick Anando Simanjuntak. "PERBANDINGAN RUMUS JOHNSON DAN RUMUS RISANTO DALAM MENENTUKAN TAKSIRAN BERAT JANIN PADA IBU HAMIL DENGAN BERAT BADAN BERLEBIH." Nommensen Journal of Medicine 5, no. 2 (2020): 24–27. http://dx.doi.org/10.36655/njm.v5i2.139.

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Background: Estimated fetal weight (EFW) is important to determine mode of delivery. The use of estimated fetal weight based on fundal height has been widely used, but the use on overweight mothers is still limited. Objectives: This study aimed to compare the Johnson’s and Risanto’s formula in estimating fetal weight on overweight mothers. Method: The design used was cross-sectional, conducted at Mitra Sejati, Herna, and Methodist Sussana Wesley hospital on November 2019 until January 2020. Mann-Whitney test was used to compare EFW mean differences between Johnson’s and Risanto’s t

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Dr., Krishna Meena, and Deepali Jain Dr. "Clinical assessment of Fetal weight estimation using Johnson's formula & Ultrasonographic assessment using Hadlock's formula at or near term: A comparative observational study." International Multispeciality Journal of Health 4, no. 4 (2018): 131–37. https://doi.org/10.5281/zenodo.1238835.

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<strong><em>Abstract—</em></strong><em>Fetal weight in conjuction with gestational age is an important indicator of pregnancy outcome. So this study was conducted to find out the better method among using Johnson's formula or using Hadlock's formula to estimate fetal weight antenatally at or near term. This prospective study conducted on 100 pregnant women selected by simple random sampling with single term pregnancy with no fetal anomalies, delivered within one week of ultrasonography as well as measuring the symphysiofundal height and accuracy of Johnson's and Hadlock's

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Dissertations / Theses on the topic "Johnson's formulae"

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George, Florence. "Johnson's system of distributions and microarray data analysis." [Tampa, Fla.] : University of South Florida, 2007. http://purl.fcla.edu/usf/dc/et/SFE0002040.

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Books on the topic "Johnson's formulae"

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United States. Congress. Senate. Committee on the Judiciary. Subcommittee on Antitrust, Monopolies, and Business Rights. Competitive issues in infant formula pricing: Hearing before the Subcommittee on Antitrust, Monopolies, and Business Rights of the Committee on the Judiciary, United States Senate, One Hundred First Congress, second session, on the pricing behavior of infant formula companies, May 29, 1990. U.S. G.P.O., 1990.

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Druks, Herbert. The Uncertain Alliance. Praeger, 2001. http://dx.doi.org/10.5040/9798216028956.

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This critical examination of American-Israeli relations from the last year of the Kennedy administration to the last year of Bill Clinton's tenure in office is a companion volume to Herbert Druks' previous bookThe Uncertain Friendship: The U.S. and Israel from Roosevelt to Kennedy. Based upon extensive research of archival sources and interviews of those who made this history happen, such as Harry S. Truman, Averell Harriman, Yitzhak Rabin, and Yitzhak Shamir, this study provides a challenging examination of key events and issues during the last three decades, including JFK and Israel's nuclea

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Book chapters on the topic "Johnson's formulae"

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Wilson, Sondra Kathryn. "Communism and the Negro." In The Selected Writings of James Weldon Johnson. Oxford University PressNew York, NY, 1995. http://dx.doi.org/10.1093/oso/9780195076455.003.0024.

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Abstract The launching of the New Deal was followed by high hopes for a new day and these high hopes were based on a new faith of the American people, faith in the ability of the brain trust by means of mathematical formulae and with mathematical formulae and with mathematical certainty, quickly to exit the depression and bring in an era of prosperity of a new kind. It appears that the country is gradually rising out of the depression. But it also appears that there is an increasing realization that economic formulas do not work out infallibly when applied to human affairs. And this means that

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Prout, Jerry. "Bold Solutions." In Chasing Automation. Cornell University Press, 2022. http://dx.doi.org/10.7591/cornell/9781501763991.003.0009.

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This chapter explores the Automation Commission's work as it navigates an automated future with workplace displacement. The still-bright glow of John F. Kennedy's idealistic legislative agenda, now coupled with Lyndon Johnson's political acumen, held forth the promise of realizing greater economic and social justice. The Automation Commission itself was asked to design policies that might seize the potential of an automated future while alleviating its corrosive impact on jobs. The commission's expansive charter reflected the energetic vision of the New Frontier, now joined to the goal of achi

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Li, Jie Jack. "Before the Age of Blockbuster Drugs." In Blockbuster Drugs. Oxford University Press, 2014. http://dx.doi.org/10.1093/oso/9780199737680.003.0004.

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Blockbuster drugs are drugs with annual sales over $1 billion these days. As a testimony of changing times, a blockbuster drug was defined as a drug with more than $500 million in annual sales just a decade ago! While these blockbuster drugs save millions of lives and improve the quality of life for millions of others, pharmaceutical companies make considerable profit. In turn, drug makers then spend a tremendous amount of money on research and development of new blockbuster drugs, looking for new ones that will sustain the “life cycle” for the health of both patients (physical and mental) and

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Yeang, Chen-Pang. "Electronic Noise in Telecommunications." In Transforming Noise. Oxford University PressOxford, 2023. http://dx.doi.org/10.1093/oso/9780198887768.003.0006.

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Abstract Chapter 6 examines the pioneering research on electronic noise—random current fluctuations in electronic devices—during the 1910s–20s. Such research testified to the general randomness of the physical world as the studies of Brownian motion had revealed. In addition, however, electronic noise was embedded in the context of engineering to design and improve high-gain thermionic-tube amplifiers for the radio and telephone. In 1918, Walter Schottky at Siemens formulated a theory of “shot noise,” current fluctuations owing to the random emissions of discrete electrons in a tube. Schottky’

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Yong, Amos. "Personal Selfhood(?) and Human Experience in Whitehead’s Philosophy of Organism." In The Paideia Archive: Twentieth World Congress of Philosophy. Philosophy Documentation Center, 1998. http://dx.doi.org/10.5840/wcp20-paideia199815305.

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The focus of this paper is personal selfhood and personal identity in the philosophy of Alfred North Whitehead. Whitehead’s theory of human personhood is formulated within the fabric of his highly original western metaphysical vision. Rejecting the Aristotelian doctrine of substantive being, Whitehead embraced instead an ontology of becoming that sought to categorize the things of this world within a naturalistic continuum. His understanding of human selfhood was therefore explicated in terms of this continuum and avoided both the rhetoric and conceptualization of substance philosophy. Thus, h

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"that both Syrians and Americans are more likely to either accept or mitigate the force of the compliment than to reject it. Both groups employed similar response types (e.g. agreeing utterances, compliment returns, and deﬂecting or qualifying comments); however, they also differed in their responses. US recipients were much more likely than the Syrians to use appreciation tokens and a preferred Syrian response, acceptance + formula, does not appear in the US data at all. Recently, in a conversation with an American who had taught EFL in Damascus for two years, one of the researchers mentioned that she was investigating the strategies Syrians use in responding to compliments. The teacher looked surprised and asked, ‘What’s there to study? Syrians just say Shukran (“thank you”). When I’m complimented in Arabic, that’s what I say – Shukran.’ This teacher was apply-ing a rule from his L1 speech community to an L2 speech community. The rule he was transferring is one that American parents teach their children and one that is taught in etiquette books: ‘When you are complimented, the only response nec-essary is “Thank you” ’ (Johnson 1979: 43). Compliment responses in Syrian Arabic, as shall become clear later, are much more complex than saying Shukran when praised. In this paper, we report on a study of Syrian Arabic speakers’ and American English speakers’ verbal responses to compliments. The purpose of the study is to better understand the strategies used by Syrians and Americans in responding to compliments, to discover similarities and differences between the two groups, and to relate the ﬁndings to second language acquisition and second language teaching." In Pragmatics and Discourse. Routledge, 2005. http://dx.doi.org/10.4324/9780203994597-39.

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Conference papers on the topic "Johnson's formulae"

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Wu, Yu-Chiao, and George G. Adams. "Plastic Yield Conditions for Adhesive Contacts." In ASME 2008 International Mechanical Engineering Congress and Exposition. ASMEDC, 2008. http://dx.doi.org/10.1115/imece2008-67026.

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The Hertz contact theory allows the onset of yielding to be predicted for those contacts in which the effect of adhesion can be neglected. However in microscale contacts, such as those which occur in MEMS, yielding will occur for lower loads than predicted by the Hertz theory. For such cases, the JKR, DMT, and Greenwood-Johnson theories extend the Hertz theory to include the effect of adhesion. The present study provides yield conditions for the JKR, DMT, and Greenwood-Johnson theories of adhesion. Attention is first focused on the initiation of yield along the axis of symmetry of the contact.

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Shimazu, Ryuya, and Michiya Sakai. "Buckling and Fatigue Evaluation of Braced Piping Support by Numerical Analysis." In ASME 2019 Pressure Vessels & Piping Conference. American Society of Mechanical Engineers, 2019. http://dx.doi.org/10.1115/pvp2019-93830.

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Abstract Buckling and fatigue evaluation of braced piping supports was conducted using numerical analysis. Buckling and fatigue occurred on the piping support during vibration and static load tests. A numerical model for the evaluation was developed, and the load–displacement relationship and local strain obtained by the numerical analysis were in good agreement with experimental results. Thus, the numerical model was validated. Buckling and fatigue evaluations were subsequently conducted using the model. In the buckling evaluation, the experimental buckling load was in good agreement with tha

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Wei, Guowu, and Jian Dai. "Synthesis and Construction of a Family of One-DOF Highly Overconstrained Deployable Polyhedral Mechanisms (DPMs)." In ASME 2012 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/detc2012-70918.

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This paper presents a family of one-DOF highly overconstrained regular and semi-regular deployable polyhedral mechanisms (DPMs) that perform radially reciprocating motion. Based on two fundamental kinematic chains with radially reciprocating motion, i.e. the PRRP chain and a novel plane/semi-plane-symmetric spatial eight-bar linkage, two methods, i.e. the virtual-axis-based (VAB) method and the virtual-centre-based (VCB) method are proposed for the synthesis of the family of regular and semi-regular DPMs. Procedure and principle for synthesizing the mechanisms are presented and selected DPMs a

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Kim, Hune-Tae, Jun-Min Seo, Ji-Hye Kim, and Yun-Jae Kim. "Effects of Strain Rate on Strain-Based Failure Assessment of Cask 1m-Puncture Drop for 304 Stainless Steel." In ASME 2022 Pressure Vessels & Piping Conference. American Society of Mechanical Engineers, 2022. http://dx.doi.org/10.1115/pvp2022-83765.

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Abstract In this paper, a strain-based failure assessment is performed on a canister made of stainless steel when a spent nuclear fuel dry storage system goes through a drop accident, to investigate the effects of strain rate on strain-based failure assessment results. The KORAD-21 multi-purpose dry storage container system developed for interim storage and transportation at the Korea Radioactive Waste Agency (KORAD) is considered. A finite element (FE) analysis is performed on a 1m puncture drop of the KORAD-21 model. Based on the FE results, the canister under a 1m puncture drop is evaluated

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Ashrafi, Nariman, and Sepideh Samghani. "Oscillating Viscoelastic Flow." In ASME 2012 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/imece2012-85635.

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The flow of nonlinear viscoelastic fluids between oscillating parallel plates is investigated. The investigation features time-dependent analysis of a complicated viscoelastic material modeled based on the Johnson-Segalman constitutive relation. Given the rheological parameters of certain material known from experiments, the coefficients of Johnson-Segalman constitutive equation model for the material are evaluated by fitting the data. The problem is first formulated by writing the governing equations for the flow between two independently oscillating parallel plates, i.e. oscillating Couette

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Erneux, Thomas. "Multiple Time Scale Analysis of Delay Differential Equations Modeling Mechanical Systems." In ASME 2005 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. ASMEDC, 2005. http://dx.doi.org/10.1115/detc2005-85028.

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The response of two nonlinear oscillators subject to a large delay is investigated by using a two-time multiple scale analysis. The first problem has been proposed by Johnson and Moon [13] as a model for machine-tool vibrations. The second problem has been formulated by Minorsky [22] in his study of a delayed control. For both problems, we derive slow time amplitude equations and show analytically that the delay is responsible for a secondary bifurcation to quasiperiodic oscillations. For Minorsky’s equation, higher order bifurcations are further analyzed for very large delays.

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Beblo, Richard V., and Lisa Mauck Weiland. "Using Multiscale Modeling to Predict Material Response of Polymeric Materials." In ASME 2009 Conference on Smart Materials, Adaptive Structures and Intelligent Systems. ASMEDC, 2009. http://dx.doi.org/10.1115/smasis2009-1333.

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Presented is a multiscale modeling method applied to light activated shape memory polymers (LASMP). LASMP are a new class of shape memory polymer (SMP) being developed for applications where a thermal stimulus is undesired. Rotational Isomeric State (RIS) theory is used to build a molecular scale model of the polymer chain yielding a list of distances between the predicted cross-link locations, or r-values. The r-values are then fit with Johnson probability density functions and used with Boltzmann statistical mechanics to predict stress as a function of strain of the phantom network. Junction

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Ashrafi, Nariman, and Mohamad Reza Eskafi. "Design and Analysis of Nonlinear Viscoelastic Damper." In ASME-JSME-KSME 2011 Joint Fluids Engineering Conference. ASMEDC, 2011. http://dx.doi.org/10.1115/ajk2011-03045.

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A custom-made nonlinear viscoelastic damper is designed for several industrial applications. The damper is structurally similar to typical commercial dampers and the design is solely based on the choice of the viscoelastic material used as damping agent in the damper. With rheological parameters of a selected material from experiment, the coefficients of Johnson-Segalman constitutive equation model are evaluated by fitting the data. The problem was first formulated by writing the governing equations for the flow over flat plate. A numerical scheme of finite difference method is applied to solv

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Ashrafi, Nariman, and Mohamad Reza Eskafi. "Application of Viscoelastic Fluids in Industrial Dampers." In ASME 2011 International Mechanical Engineering Congress and Exposition. ASMEDC, 2011. http://dx.doi.org/10.1115/imece2011-63049.

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A nonlinear viscoelastic damper is designed for several industrial applications. The damper is structurally similar to typical commercial dampers and the design is based on the choice of the viscoelastic material used as damping agent in the damper. Given the rheological parameters of certain material known from experiments, the coefficients of Johnson-Segalman constitutive equation model for the material are evaluated by fitting the data. The problem is first formulated by writing the governing equations for the flow between two parallel flat plates, i.e. Couette flow. The velocity and stress

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ŚLUSARCZYK, L. "Analytical method for determining cutting forces during orthogonal turning of C45 steel." In Material Forming. Materials Research Forum LLC, 2023. http://dx.doi.org/10.21741/9781644902479-142.

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Abstract. The authors present a method for determining cutting forces during orthogonal turning of C45 steel. The method utilizes Oxley’s chip formation model as well as Johnson-Cook (J-C) constitutive equation and is based on the assumption that the tool is perfectly sharp and the chip formation process is continuous. It is also assumed that the heat exchange between the workpiece, the tool and the chip is carried out by conduction with negligibly small loses caused by convection and radiation and that the thickness of the chip contacting the rake face is constant. The adoption of the above a

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