Journal articles: 'Development length'

1

Ha, Sang-Su, and Dong-Uk Choi. "Development Length of GFRP Bars." Journal of the Korea Concrete Institute 22, no. 1 (February 28, 2010): 131–41. http://dx.doi.org/10.4334/jkci.2010.22.1.131.

Full text

APA, Harvard, Vancouver, ISO, and other styles

2

Kim, Joon Yeon, Do Gyun Kim, Hyoung Chan Bhang, Chong Cheoul Yun, and Jong Won Kim. "Development of the Bunch Length Detector." Journal of the Korean Physical Society 59, no. 2(3) (August 12, 2011): 1617–19. http://dx.doi.org/10.3938/jkps.59.1617.

Full text

APA, Harvard, Vancouver, ISO, and other styles

3

Vorperian, Houri K., Cliff M. Kalina, Ray D. Kent, Brian S. Yandell, and Lindell R. Gentry. "Vocal tract length development: MRI procedures." Journal of the Acoustical Society of America 109, no. 5 (May 2001): 2446. http://dx.doi.org/10.1121/1.4744668.

Full text

APA, Harvard, Vancouver, ISO, and other styles

4

Cosenza, E., G. Manfredi, and R. Realfonzo. "Development length of FRP straight rebars." Composites Part B: Engineering 33, no. 7 (October 2002): 493–504. http://dx.doi.org/10.1016/s1359-8368(02)00051-3.

Full text

APA, Harvard, Vancouver, ISO, and other styles

5

Sutharshana, S. "Empirical study of bar development length." Computer-Aided Design 17, no. 4 (May 1985): 200. http://dx.doi.org/10.1016/0010-4485(85)90221-0.

Full text

APA, Harvard, Vancouver, ISO, and other styles

6

Stojanovic, Zdenka, Angelina Nikodijevic, Bozidar Udovicic, Jasmina Milic, and Predrag Nikolic. "Size of lower jaw as an early indicator of skeletal class III development." Vojnosanitetski pregled 65, no. 8 (2008): 589–95. http://dx.doi.org/10.2298/vsp0808589s.

Full text

Abstract:

Background/Aim. Malocclusion of skeletal class III is a complex abnormality, with a characteristic sagital position of the lower jaw in front of the upper one. A higher level of prognatism of the lower jaw in relation to the upper one can be the consequence of its excessive length. The aim of this study was to find the differences in the length of the lower jaw in the children with skeletal class III and the children with normal sagital interjaw relation (skeletal class I) in the period of mixed dentition. Methods. After clinical and x-ray diagnostics, profile tele-x-rays of the head were analyzed in 60 examinees with mixed dentition, aged from 6 to 12 years. The examinees were divided into two groups: group 1 - the children with skeletal class III and group 2 - the children with skeletal class I. The length of the lower jaw, upper jaw and cranial base were measured. The proportional relations between the lengths measured within each group were established and the level of difference in the lengths measured and their proportions between the groups were estimated. Results. No significant difference between the groups was found in the body length, ramus and the total length of the lower jaw. Proportional relation between the body length and the length of the lower jaw ramus and proportional relation between the forward cranial base and the lower jaw body were not significantly different. A significant difference was found in proportional relations of the total length of the lower jaw with the total lengths of cranial base and the upper jaw and proportional relation of the length of the lower and upper jaw body. Conclusion. Of all the analyzed parameters, the following were selected as the early indicators of the development of skeletal class III on the lower jaw: greater total length of the lower jaw, proportional to the total lengths of cranial base and the upper jaw, as well as greater length of the lower jaw body, proportional to the length of the upper jaw body. .

APA, Harvard, Vancouver, ISO, and other styles

7

Beschorner, Patrick F. E. "Optimal patent length and height." Empirica 35, no. 3 (January 12, 2008): 233–40. http://dx.doi.org/10.1007/s10663-007-9059-7.

Full text

APA, Harvard, Vancouver, ISO, and other styles

8

GU, Juan, and Xiao-Ping CHEN. "Length of cell cycle in neural development." Hereditas (Beijing) 33, no. 11 (December 2, 2011): 1185–90. http://dx.doi.org/10.3724/sp.j.1005.2011.01185.

Full text

APA, Harvard, Vancouver, ISO, and other styles

9

Walujodjati, E. "Development length on concrete with bundle bars." IOP Conference Series: Materials Science and Engineering 434 (December 3, 2018): 012197. http://dx.doi.org/10.1088/1757-899x/434/1/012197.

Full text

APA, Harvard, Vancouver, ISO, and other styles

10

Cho, Hyo-Min, Changwoo Lee, Hojae Kim, Yong Tae Kim, Teo Jeon Shin, and Bongyoung Ahn. "Development of length standard phantom for length measurement correction in x-ray image." Review of Scientific Instruments 92, no. 8 (August 1, 2021): 084104. http://dx.doi.org/10.1063/5.0057880.

Full text

APA, Harvard, Vancouver, ISO, and other styles

11

McIntyre, Matthew H., Peter T. Ellison, Daniel E. Lieberman, Ellen Demerath, and Bradford Towne. "The development of sex differences in digital formula from infancy in the Fels Longitudinal Study." Proceedings of the Royal Society B: Biological Sciences 272, no. 1571 (June 28, 2005): 1473–79. http://dx.doi.org/10.1098/rspb.2005.3100.

Full text

Abstract:

Relative finger lengths, especially the second-to-fourth finger length ratio, have been proposed as useful markers for prenatal testosterone action. This claim partly depends on an association of relative finger lengths in adults with related sex differences in children and infants. This paper reports the results of a study using serial radiographs to test for both sex differences in the fingers of infants and children and for a relationship between sex differences in the children and infant finger and adult finger length ratios. This is the first study using long-term serial data to evaluate the validity of finger length ratios as markers. We found not only that sex differences in finger length ratios arise prior to puberty, but that sex differences in the fingers of children are highly correlated with adult finger length ratios. Our results strongly encourage the further use of finger length ratios as markers of perinatal testosterone action.

APA, Harvard, Vancouver, ISO, and other styles

12

Mayhew, Terry M. "STEREOLOGICAL STUDIES ON FETAL VASCULAR DEVELOPMENT IN HUMAN PLACENTAL VILLI." Image Analysis & Stereology 22, no. 1 (May 3, 2011): 49. http://dx.doi.org/10.5566/ias.v22.p49-56.

Full text

Abstract:

In human pregnancy, fetal well-being depends on the development of placental villi and the creation and maintenance of fetal microvessels within them. The aim of this study was to define stereological measures of the growth, capillarization and maturation of villi and of fetoplacental angiogenesis and capillary remodelling. Placentas were collected at 12-41 weeks of gestation and assigned to six age groups spanning equal age ranges. Tissue samples were randomised for position and orientation. Overall growth of peripheral (intermediate and terminal) villi and their capillaries was evaluated using total volumes, surface areas and lengths. Measures of villous capillarization comprised capillary volume, surface and length densities and capillary:villus surface and length ratios. Size and shape remodelling of villi and capillaries was assessed using mean cross-sectional areas, perimeters and shape coefficients (perimeter2/area). Group comparisons were drawn by analysis of variance. Villous and capillary volumes, surfaces and lengths increased significantly throughout gestation. Villous maturation involved phasic (capillary:villus surface and length ratios) or progressive (volume, surface and length densities) increases in indices of villous capillarization. It also involved isomorphic thinning (cross-sectional areas and perimeters declined but shape coefficients did not alter). In contrast, growth of capillaries did not involve changes in luminal areas or perimeters. The results show that villous growth and fetal angiogenesis involve increases in overall length rather than calibre and that villous differentiation involves increased capillarization. Although they do not distinguish between increases in the lengths versus numbers of capillary segments, other studies have shown that capillaries switch from branching to non-branching angiogenesis during gestation. Combined with maintenance of capillary calibres, these processes will contribute to the reduced fetal vascular impedances observed during pregnancy.

APA, Harvard, Vancouver, ISO, and other styles

13

Hosseini, S. A., M. E. Khalili, M. Pourmajidian, A. Fallah, and A. Parsakhoo. "Relationship between forest road length and village development during three decades in Neka-Zalemrood forest." Journal of Forest Science 58, No. 1 (January 27, 2012): 1–7. http://dx.doi.org/10.17221/44/2010-jfs.

Full text

Abstract:

Forest roads are built to facilitate the transport of personnel and wood, and so to promote village development. In this study 18 development indices of village in relation to increasing forest road density were evaluated during three decades for the villages of Aryam, Estakhrposht, Hosein Abad, Daram, Sarm and Darzikola in Neka-Zalemrood forest. According to the National Population and Housing Census of Iran (NPHCI), the rank of zero was considered for cases when a village did not have a specific facility and the rank of one was considered for cases when a village had a specific facility and service. The total length of forest roads was measured on maps from the years 1986, 1996 and 2006. Results showed that the total length of built roads at the end of 1986, 1996 and 2006 was 7, 25 and 36 km, respectively. Index of development in the village of Estakhrposht and Daram was positive at the end of the second decade whereas the villages of Estakhrposht, Daram, Aryam and Darzikola with ranks of 1.494; 0.053; 0.293 and 0.053 had positive development index in the third decade. The index of development in other villages was still negative at the end of 2006. The villages of Sarm and Daram enjoyed 5 and 7 services and facilities, respectively, in the second decade. So, their development index increased from –0.3 to 0.06 for Sarm and from –0.3 to 0.17 for Daram. 7.5 km of forest roads in the village of Estakhrposht were asphalted in the third decade (1996–2006) and the village of Estakhrposht  enjoyed 18 development indices in total.  

APA, Harvard, Vancouver, ISO, and other styles

14

Wu, Yao, Jian Lu, Hong Chen, and Haifei Yang. "Development of an Optimization Traffic Signal Cycle Length Model for Signalized Intersections in China." Mathematical Problems in Engineering 2015 (2015): 1–9. http://dx.doi.org/10.1155/2015/954295.

Full text

Abstract:

The primary objective of this study is to develop an optimization traffic signal cycle length model for signalized intersections. Traffic data were collected from 50 signalized intersections in Xi’an city. Using comprehensive delay data, the optimization cycle length model is re-recalibrated to the Chinese traffic conditions based on the Webster delay model. The result showed that the optimization cycle length model takes vehicle delay time, pedestrian crossing time, and drivers’ anxiety into consideration. To evaluate the effects of the optimization cycle length model, three intersections were selected for a simulation. The delay time and queue length based on the optimization cycle length model and the TRRL model were compared. It was found that the delay times and queue lengths with the optimization cycle length model were significantly smaller than those with the TRRL model. The results suggested that the optimization traffic signal cycle length model was more optimal than the TRRL model.

APA, Harvard, Vancouver, ISO, and other styles

15

Peterman, Robert J., Julio A. Ramirez, and Jan Olek. "Design of Semilightweight Bridge Girders: Development-Length Considerations." Transportation Research Record: Journal of the Transportation Research Board 1696, no. 1 (January 2000): 41–47. http://dx.doi.org/10.3141/1696-06.

Full text

Abstract:

In a recent study, 25 development-length tests were conducted on rectangular and T-shaped semilightweight beams having design compressive strengths of 48 MPa (7,000 psi) and 69 MPa (10,000 psi). In the rectangular beam tests, the design moment capacity was exceeded in every case. However, in the tests on T-shaped beams, bond failure occurred in some specimens immediately after the formation of a flexure-shear crack. Additional tests were then conducted on similar T-shaped beams having varying amounts of transverse reinforcement near the point load. These tests showed that bond failure could be prevented by increasing the transverse reinforcement near the point of maximum moment. The study showed that the shift in the tension force that occurs when flexural cracks turn diagonally may lead to bond failure if sufficient anchorage of the strand is not provided. Therefore, the investigators recommend that the current AASHTO requirements for strand development be enforced at a “critical section” located at a distance dp from the point of maximum moment toward the free end of the strand, where dp is the distance from the extreme compression fiber to the centroid of the prestressed reinforcement.

APA, Harvard, Vancouver, ISO, and other styles

16

Battista, Michael T. "Understanding the Development of Students' Thinking about Length." Teaching Children Mathematics 13, no. 3 (October 2006): 140–46. http://dx.doi.org/10.5951/tcm.13.3.0140.

Full text

Abstract:

Describes assessment tasks and a conceptual framework for understanding elementary students' thinking about the concept of length. Teachers will learn about student difficulties with length and how to differentiate instruction to reach these learners.

APA, Harvard, Vancouver, ISO, and other styles

17

Hutchinson, Sarah A., Erin Tooke-Locke, Jindong Wang, Schickwann Tsai, Tammisty Katz, and Nikolaus S. Trede. "Tbl3 regulates cell cycle length during zebrafish development." Developmental Biology 368, no. 2 (August 2012): 261–72. http://dx.doi.org/10.1016/j.ydbio.2012.05.024.

Full text

APA, Harvard, Vancouver, ISO, and other styles

18

Pintado, P., P. Sampaio, B. Tavares, T. D. Montenegro-Johnson, D. J. Smith, and S. S. Lopes. "Dynamics of cilia length in left–right development." Royal Society Open Science 4, no. 3 (March 2017): 161102. http://dx.doi.org/10.1098/rsos.161102.

Full text

Abstract:

Reduction in the length of motile cilia in the zebrafish left–right organizer (LRO), also known as Kupffer's vesicle, has a large impact on left–right development. Here we demonstrate through genetic overexpression in zebrafish embryos and mathematical modelling that the impact of increased motile cilia length in embryonic LRO fluid flow is milder than that of short cilia. Through Arl13b overexpression, which increases cilia length without impacting cilia beat frequency, we show that the increase in cilium length is associated with a decrease in beat amplitude, resulting in similar flow strengths for Arl13b overexpression and wild-type (WT) embryos, which were not predicted by current theory. Longer cilia exhibit pronounced helical beat patterns and, consequently, lower beat amplitudes relative to WT, a result of an elastohydrodynamic shape transition. For long helical cilia, fluid dynamics modelling predicts a mild (approx. 12%) reduction in the torque exerted on the fluid relative to the WT, resulting in a proportional reduction in flow generation. This mild reduction is corroborated by experiments, providing a mechanism for the mild impact on organ situs .

APA, Harvard, Vancouver, ISO, and other styles

19

Moon, Jeong-Ho, and Young-Hun Oh. "Development Length Effects of High Strength Headed Bar." Journal of the Korea institute for structural maintenance and inspection 19, no. 5 (September 1, 2015): 75–82. http://dx.doi.org/10.11112/jksmi.2015.19.5.075.

Full text

APA, Harvard, Vancouver, ISO, and other styles

20

Hutcheson, Graeme D. "Utterance length as a measure of language development." First Language 12, no. 36 (October 1992): 352. http://dx.doi.org/10.1177/014272379201203626.

Full text

APA, Harvard, Vancouver, ISO, and other styles

21

Lacroix, Christian R., and Usher Posluszny. "A morphometric analysis of leaf development in Vitis riparia, and grape cultivars Concord and Vivant." Canadian Journal of Botany 69, no. 2 (February 1, 1991): 400–406. http://dx.doi.org/10.1139/b91-055.

Full text

Abstract:

This study investigates the initiation of leaf shape in three taxa of Vitis from a quantitative point of view. Leaf characters, such as angles between major veins, ratios of the length of leaf lobes, of leaf lobes and sinuses, and of petioles and leaf lobes, were measured on leaves of different sizes and compared against leaf blade length (an indirect measure of developmental time) to see if there were differences between them at different developmental stages, and between taxa. Two trends were observed. Characters dealing with angles between major leaf veins, and those dealing with the ratio of the distance to the first point of branching of the major leaf vein of a lobe and the length of that leaf lobe, showed relatively little change over leaf blade length compared to more variable characters such as those involving the leaf petiole, leaf sinuses, or leaf lobes. If we assume that leaves of different lengths represent leaves at different stages of development, we can say that the characters dealing with angles or venation do not change extensively over time. However, characters dealing with ratios of the distance to a leaf sinus and lobe length, ratios of the length of two leaf lobes, or those dealing with the ratio of the length of the petiole and lobe length showed a stronger indication of change over leaf blade length. The parameters of interest in most of these ratios (petiole length or sinus depth compared against the length of a leaf lobe) varied more at different leaf blade lengths. It was also possible to distinguish between taxa for characters dealing with leaf lobes, petioles, and sinuses. Key words: morphometry, leaves, Vitis, development, characters, shape.

APA, Harvard, Vancouver, ISO, and other styles

22

Winarno, Agustinus, Sus Lasiyah, Benidiktus Tulung Prayoga, Ignatius Aris Hendaryanto, and Fransiskus Xaverius Sukidjo. "Development of Accuracy Evaluation Method for Open Loop Educational CNC Milling Machine." Jurnal Rekayasa Mesin 12, no. 1 (May 31, 2021): 217. http://dx.doi.org/10.21776/ub.jrm.2021.012.01.23.

Full text

Abstract:

<p>The open-loop educational computer numerical control (CNC) milling machine requires accuracy verification in order to ensure its accuracy and functionality. In this paper, the new verification method is proposed based on the length measurement using the fringe counting of He-Ne laser interferometry. The ideal translation length is defined by the number of electric pulses generated by the micro-stepping driver, while the actual length is measured using He-Ne laser interferometry. In the experimental process, the data of the fringe pattern of the He-Ne laser and the number of electric pulses which drive the stepper motors were simultaneously acquired using an oscilloscope. Hence, the data has been analyzed to obtain the ideal and actual lengths by using an in-house program developed in Python. By comparing the actual translation and ideal length, the accuracy of the educational CNC milling machine has been evaluated to be 50 µm for the length up to 200 mm.</p>

APA, Harvard, Vancouver, ISO, and other styles

23

Marnerides, Andreas, Sam Ghazi, Anders Sundberg, and Nikos Papadogiannakis. "Development of Fetal Intestinal Length during 2nd-Trimester in Normal and Pathologic Pregnancies." Pediatric and Developmental Pathology 15, no. 1 (January 2012): 24–29. http://dx.doi.org/10.2350/11-07-1057-oa.1.

Full text

Abstract:

Linear growth of the human fetal gastrointestinal tract is not often discussed in the literature, and little is known about the effects of chromosomal abnormalities and intrauterine growth restriction (IUGR) on intestinal length, especially during the 2nd trimester. Accurate evaluation of intestinal length and knowledge of normal and reference values are of clinical importance. For example, intestinal resection may be necessary in preterm infants with necrotizing enterocolitis or mid-gut volvulus, and the surgeon should use data to be judicious in the amount removed. Linear measurements are essential in evaluating fetal development ultrasonographically and are an integral part of the postmortem examination. The intestinal lengths of 203 2nd-trimester fetuses and premature infants were measured. Small intestine length (SIL), colon length (CL), total bowel length (TBL; TBL = SIL + CL), and the length of the appendix (AL) increased with gestational age. No differences between the genders were observed. Colon length increased secondary to maceration, but no such effects were shown on SIL, TBL, or AL. No differences were shown in relation to IUGR. Small intestine length, CL, and TBL, but not AL, were shorter in fetuses with trisomy 21. Appendix length was not affected by any of the studied factors. We propose that the measurement of the length of the appendix may be used as an additional parameter for the postmortem evaluation of gestational age. Furthermore, its assessment may have potential as an ultrasonographic indicator of gestational age, particularly for the 2nd trimester.

APA, Harvard, Vancouver, ISO, and other styles

24

Yuen, W. W. "Development of a Network Analogy and Evaluation of Mean Beam Lengths for Multidimensional Absorbing/Isotropically Scattering Media." Journal of Heat Transfer 112, no. 2 (May 1, 1990): 408–14. http://dx.doi.org/10.1115/1.2910392.

Full text

Abstract:

Based on Hottel’s zonal formulation, a network analogy is developed for the analysis of radiative transfer in general multidimensional absorbing/isotropically scattering media. Applying the analogy to the analysis of an isothermal medium and assuming that the incoming and outgoing flux density is homogeneous within the medium, the effect of scattering on the evaluation of mean beam lengths is illustrated. Two concepts of mean beam length, an absorption mean beam length (AMBL) and an extinction mean beam length (EMBL), are introduced and shown to be important for the analysis of radiative transfer in practical systems. Both mean beam lengths differ significantly from the conventional mean beam length in systems of moderate and large optical thickness. Relations between AMBL and EMBL and their limiting behavior are developed analytically. Numerical results for a sphere radiating to its surface and an infinite parallel slab radiating to one of its surfaces are presented to demonstrate quantitatively the mathematical behavior of the two mean beam lengths.

APA, Harvard, Vancouver, ISO, and other styles

25

Goslin, K., and G. Banker. "Experimental observations on the development of polarity by hippocampal neurons in culture." Journal of Cell Biology 108, no. 4 (April 1, 1989): 1507–16. http://dx.doi.org/10.1083/jcb.108.4.1507.

Full text

Abstract:

In culture, hippocampal neurons develop a polarized form, with a single axon and several dendrites. Transecting the axons of hippocampal neurons early in development can cause an alteration of polarity; a process that would have become a dendrite instead becomes the axon (Dotti, C. G., and G. A. Banker. 1987. Nature (Lond.). 330:254-256). To investigate this phenomenon more systematically, we transected axons at varying lengths. The greater the distance of the transection from the soma, the greater the probability for regrowth of the original axon. However, it was not the absolute length of the axonal stump that determined the response to transection, but rather its length relative to the lengths of the cell's other processes. If one process was greater than 10 microns longer than the others, it invariably became the axon regardless of its identity before transection. Conversely, when a cell's processes were nearly equal in length, it was impossible to predict which would become the axon. In these cases, axonal outgrowth began only after a long latency. During this interval, the processes appeared to be in dynamic equilibrium, some growing for short distances while others retracted. When one process exceeded the others by a critical length, it rapidly elongated to become the axon. The establishment of neuronal polarity during normal development may similarly involve an interaction among processes whose identities have not yet been determined. When, by chance, one exceeds the others by a critical length, it becomes specified as the axon.

APA, Harvard, Vancouver, ISO, and other styles

26

Merker, Andrea, Luitgard Neumeyer, Niels Thomas Hertel, Giedre Grigelioniene, Klaus Mohnike, and Lars Hagenäs. "Development of body proportions in achondroplasia: Sitting height, leg length, arm span, and foot length." American Journal of Medical Genetics Part A 176, no. 9 (August 27, 2018): 1819–29. http://dx.doi.org/10.1002/ajmg.a.40356.

Full text

APA, Harvard, Vancouver, ISO, and other styles

27

WU, Jinglong, Haibo WANG, Naotsugu KITAYAMA, and Satoshi TAKAHASHI. "Development of 4-Degree-of-Freedom Length Display and Length Perception Experiment of 5 Fingers." TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series C 77, no. 778 (2011): 2336–42. http://dx.doi.org/10.1299/kikaic.77.2336.

Full text

APA, Harvard, Vancouver, ISO, and other styles

28

Ortlepp, Regine. "Efficient Adaptive Test Method for Textile Development Length in TRC." Advances in Civil Engineering 2018 (July 15, 2018): 1–14. http://dx.doi.org/10.1155/2018/4650102.

Full text

Abstract:

Natural resources can be conserved if we carefully maintain the building stock and indeed extend the useful economic life of buildings. One way to achieve this is to enhance load-bearing structures by repair, restoration, or strengthening. Such upgrading often involves applying a strengthening to existing concrete elements. Over the past decade, textile-reinforced concrete (TRC), encompassing a combination of fine-grained concrete and noncorrosive multiaxial textile fabrics, has emerged as a promising novel alternative for strengthening of conventional steel-reinforced concrete (RC) structures, offering enhanced load-bearing capacity with minimal weight and stiffness change. Although TRC has been extensively researched during the last two decades, the formalization of experimental methods and design standards is still in progress. Attempts to design for good load transfer are often hindered by lack of knowledge regarding bond behaviour. For instance, there are neither standard recommendations nor proofs regarding the required development length of textile fibres in TRC for practical applications up to now. The aim of this work was to provide a test specification, which gives a direct result for the development length (required for the anchorage of a reinforcement, also referred to as “anchorage length”) of textile reinforcements in fine-grained concrete—quickly and easily. The aim of this paper was to present the test specification developed in a way that it is useful for the future work of other researchers as well as for construction engineers. Some selected experimental investigations with different textile reinforcements and different bonding properties were performed with the aim of showing the applicability of the proposed adaptive test specification. The results of these tests indicated that conventional AR glass and carbon fabrics without coating required large anchoring lengths. The tests further showed that an additional application of different kinds of coating to textile fabrics greatly increased the reinforcement’s resistance to pullout. This is of special interest for carbon fibres, which have a substantially higher strength than AR glass fibres and different bond behaviour; that is, carbon fibres have, by nature, larger development lengths.

APA, Harvard, Vancouver, ISO, and other styles

29

Clements, Douglas H., Michael T. Battista, Julie Sarama, Sudha Swaminathan, and Sue McMillen. "Students' Development of Length Concepts in a Logo-Based Unit on Geometric Paths." Journal for Research in Mathematics Education 28, no. 1 (January 1997): 70–95. http://dx.doi.org/10.5951/jresematheduc.28.1.0070.

Full text

Abstract:

We investigated the development of linear measure concepts within an instructional unit on paths and lengths of paths, part of a large-scale curriculum development project funded by the National Science Foundation (NSF). We also studied the role of noncomputer and computer interactions in that development. Data from paper-and-pencil assessments, interviews, and case studies were collected within the context of a pilot test of this unit with 4 third graders and field tests with 2 thirdgrade classrooms. Three levels of strategies for solving length problems were observed: (a) apply general strategies such as visual guessing of measures and naive guessing of numbers or arithmetic operations; (b) draw hatch marks, dots, or line segments to partition lengths to serve as perceptible units to quantify the length; (c) no physical partitioning—use an abstract unit of length, a “conceptual ruler,” to project onto unsegmented objects. Those students who had connected numeric and spatial representations evinced different and more powerful problem-solving strategies in geometric situations than those who had forged fewer such connections.

APA, Harvard, Vancouver, ISO, and other styles

30

Allen, John. "Arm's length imperialism?" Political Geography 24, no. 4 (May 2005): 531–41. http://dx.doi.org/10.1016/j.polgeo.2004.09.003.

Full text

APA, Harvard, Vancouver, ISO, and other styles

31

Choi, Dong-Uk, Sang-Su Ha, and Chang-Ho Lee. "Development Length of GFRP Rebars Based on Pullout Test." Journal of the Korea Concrete Institute 19, no. 3 (June 30, 2007): 323–31. http://dx.doi.org/10.4334/jkci.2007.19.3.323.

Full text

APA, Harvard, Vancouver, ISO, and other styles

32

SUTOH, Yasunori, Kazuomi KAKIMOTO, Naoki KANEKO, Yasuhiro IIJIMA, and Takashi SAITOH. "Development of Long-length YBCO Superconductor Using IBAD/PLD." TEION KOGAKU (Journal of the Cryogenic Society of Japan) 39, no. 11 (2004): 536–40. http://dx.doi.org/10.2221/jcsj.39.536.

Full text

APA, Harvard, Vancouver, ISO, and other styles

33

Tabatabai, Habib, and Timothy J. Dickson. "The History of the Prestressing Strand Development Length Equation." PCI Journal 38, no. 6 (November 1, 1993): 64–75. http://dx.doi.org/10.15554/pcij.11011993.64.75.

Full text

APA, Harvard, Vancouver, ISO, and other styles

34

Berry, Joseph, Malcolm Davidson, and Dalton Harvie. "Electrokinetic development length of electroviscous flow through a contraction." ANZIAM Journal 52 (October 13, 2011): 837. http://dx.doi.org/10.21914/anziamj.v52i0.3923.

Full text

APA, Harvard, Vancouver, ISO, and other styles

35

Braden, Chris A., and C. W. Smith. "Fiber Length Development in Near-Long Staple Upland Cotton." Crop Science 44, no. 5 (September 2004): 1553–59. http://dx.doi.org/10.2135/cropsci2004.1553.

Full text

APA, Harvard, Vancouver, ISO, and other styles

36

Abreu, L. G., J. Huang, R. M. Reis, L. Liu, A. Seyfang, and D. L. Keefe. "Epigenetic modifications alter telomere length during preimplantation embryo development." Fertility and Sterility 90 (September 2008): S344—S345. http://dx.doi.org/10.1016/j.fertnstert.2008.07.1582.

Full text

APA, Harvard, Vancouver, ISO, and other styles

37

Toikka, Lauren, Abass Braimah, Ghani Razaqpur, and Simon Foo. "Strain Rate Effect on Development Length of Steel Reinforcement." Journal of Structural Engineering 141, no. 11 (November 2015): 04015044. http://dx.doi.org/10.1061/(asce)st.1943-541x.0001288.

Full text

APA, Harvard, Vancouver, ISO, and other styles

38

YOSHIMURA, Hiroyuki, Kunitomo KIKUCHI, and Shigeki TSUCHITANI. "201 Development of Variable-focal Length Lens Using IPMC." Proceedings of Conference of Kansai Branch 2008.83 (2008): _2–1_. http://dx.doi.org/10.1299/jsmekansai.2008.83._2-1_.

Full text

APA, Harvard, Vancouver, ISO, and other styles

39

Gjelsvik, A. "Development Length for Single Wire in Suspension Bridge Cable." Journal of Structural Engineering 117, no. 4 (April 1991): 1189–200. http://dx.doi.org/10.1061/(asce)0733-9445(1991)117:4(1189).

Full text

APA, Harvard, Vancouver, ISO, and other styles

40

Cabooter, Deirdre, David Clicq, Filip De Boever, François Lestremau, Roman Szucs, and Gert Desmet. "A Variable Column Length Strategy To Expedite Method Development." Analytical Chemistry 83, no. 3 (February 2011): 966–75. http://dx.doi.org/10.1021/ac102508h.

Full text

APA, Harvard, Vancouver, ISO, and other styles

41

de Frutos, C., P. Bermejo-Alvarez, D. Rizos, and A. Gutierrez-Adan. "60 TELOMERE LENGTH DYNAMICS DURING BOVINE PREIMPLANTATION EMBRYO DEVELOPMENT." Reproduction, Fertility and Development 24, no. 1 (2012): 142. http://dx.doi.org/10.1071/rdv24n1ab60.

Full text

Abstract:

The establishment of telomere length (TL) during embryogenesis determines telomere reserves in newborn mammals. However, limited information is available on TL dynamics during preimplantation in contrast to the extensive existing data on telomerase activity in germ cells and embryogenesis. Telomerase activity is high in the male germ line, low or absent in oocytes and early stage embryos and high in blastocysts (Bl). Mechanisms allowing early embryos to reset TL remain poorly understood. The documented telomere lengthening at the morula/Bl transition in mice and bovines is dependent on telomerase activity. A recombinant-based mechanism termed alternative lengthening of telomeres (ALT) has been postulated to be responsible for the lengthening of telomeres in early embryos. The aims of the present study were to analyse the telomere dynamics during preimplantation embryo development in 2 species of known different TL: mice and bovines and the relative expression of 2 components of telomerase [telomerase reverse transcriptase (Tert; the key factor that controls the activity of the telomerase) and telomerase RNA component (Terc)]. Twenty samples for each developmental stage with an equivalent number of cells (matured oocytes/zygotes: 8 and 32; 2-cell embryos: 4 and 16; 4-cell embryos: 2 and 8; 8-cell embryos: 1 and 4; 16-cell embryos: 2 only for bovine; morulae: 1 and 1; and Bl: 1 and 1 for mice and bovines, respectively) were analysed for relative TL measurement using the real-time quantitative PCR method described previously (Bermejo-Alvarez et al. 2008 Physiol. Genomics 32, 264272). For measuring the mRNA, 3 groups of 10 oocytes/embryos for each developmental stage were used. Data were analysed by 1-way ANOVA. In mice, matured oocytes had the shortest telomeres of all stages examined (P < 0.01); a slight increase up to the 4-cell stage and a decrease at the 8-cell and morula stages was noted (P < 0.05), while a marked increase was observed in Bl, as expected (P < 0.01). In contrast, bovine matured oocytes had longer telomeres than zygotes and this length gradually decreased up to the 4-cell stage and increased again at the 16-cell stage (P < 0.05). Then, telomeres shortened at the morula stage (P < 0.05) and a significant increase was observed at the Bl stage like in mice (P < 0.01). The relative abundance of mTerc increased throughout development with a marked up-regulation at the morula and Bl stages (P < 0.01). On the other hand, the relative abundance of mTert was significantly higher in the mature oocytes and zygotes compared to later stages (P < 0.01); however, it should be noted that there was a gradual increase from the 2-cell stage up to Bl. In conclusion, in contrast to mice, bovine oocytes have longer telomeres than zygotes. Knowing that the telomerase activity is low or absent until the Bl stage (indicated by the low expression of Tert), the TL increase detected in 16-cell bovine embryos indicates an alternative mechanism for telomere elongation during early development, like that observed in mice. Understanding how telomeres reset during early embryo development has implications for the study of stem cells and regenerative biology.

APA, Harvard, Vancouver, ISO, and other styles

42

Booth, S. A., and F. J. Charchar. "Cardiac telomere length in heart development, function, and disease." Physiological Genomics 49, no. 7 (July 1, 2017): 368–84. http://dx.doi.org/10.1152/physiolgenomics.00024.2017.

Full text

Abstract:

Telomeres are repetitive nucleoprotein structures at chromosome ends, and a decrease in the number of these repeats, known as a reduction in telomere length (TL), triggers cellular senescence and apoptosis. Heart disease, the worldwide leading cause of death, often results from the loss of cardiac cells, which could be explained by decreases in TL. Due to the cell-specific regulation of TL, this review focuses on studies that have measured telomeres in heart cells and critically assesses the relationship between cardiac TL and heart function. There are several lines of evidence that have identified rapid changes in cardiac TL during the onset and progression of heart disease as well as at critical stages of development. There are also many factors, such as the loss of telomeric proteins, oxidative stress, and hypoxia, that decrease cardiac TL and heart function. In contrast, antioxidants, calorie restriction, and exercise can prevent both cardiac telomere attrition and the progression of heart disease. TL in the heart is also indicative of proliferative potential and could facilitate the identification of cells suitable for cardiac rejuvenation. Although these findings highlight the involvement of TL in heart function, there are important questions regarding the validity of animal models, as well as several confounding factors, that need to be considered when interpreting results and planning future research. With these in mind, elucidating the telomeric mechanisms involved in heart development and the transition to disease holds promise to prevent cardiac dysfunction and potentiate regeneration after injury.

APA, Harvard, Vancouver, ISO, and other styles

43

Flammang, Mark K., David W. Willis, and Brian R. Murphy. "Development of Condition and Length-Categorization Standards for Saugeye." Journal of Freshwater Ecology 8, no. 3 (September 1993): 199–207. http://dx.doi.org/10.1080/02705060.1993.9664855.

Full text

APA, Harvard, Vancouver, ISO, and other styles

44

Saul, Justin, Brianne Petritis, Sujay Sau, Femina Rauf, Michael Gaskin, Benjamin Ober-Reynolds, Irina Mineyev, et al. "Development of a full-length human protein production pipeline." Protein Science 23, no. 8 (June 2, 2014): 1123–35. http://dx.doi.org/10.1002/pro.2484.

Full text

APA, Harvard, Vancouver, ISO, and other styles

45

Blevins, Belinda L., and Robert G. Cooper. "The Development of Transitivity of Length in Young Children." Journal of Genetic Psychology 147, no. 3 (September 1986): 395–405. http://dx.doi.org/10.1080/00221325.1986.9914513.

Full text

APA, Harvard, Vancouver, ISO, and other styles

46

Shchipunov, A. N., K. B. Savkin, and M. V. Letunovskii. "Secondary standard of unit of length: state and development." Measurement Techniques 51, no. 12 (December 2008): 1269–72. http://dx.doi.org/10.1007/s11018-009-9199-1.

Full text

APA, Harvard, Vancouver, ISO, and other styles

47

Yaseen, Zaher Mundher, Behrooz Keshtegar, Hyeon-Jong Hwang, and Moncef L. Nehdi. "Predicting reinforcing bar development length using polynomial chaos expansions." Engineering Structures 195 (September 2019): 524–35. http://dx.doi.org/10.1016/j.engstruct.2019.06.012.

Full text

APA, Harvard, Vancouver, ISO, and other styles

48

Anand, Adarsh, Jasmine Kaur, Ompal Singh, and Omar H. Alhazmi. "Optimal Sprint Length Determination for Agile-Based Software Development." Computers, Materials & Continua 68, no. 3 (2021): 3693–712. http://dx.doi.org/10.32604/cmc.2021.017461.

Full text

APA, Harvard, Vancouver, ISO, and other styles

49

Tanaka, Atsushi, and Hideyuki Okuzumi. "Gait Development in Toddlers: Analyses of Walking Velocity, Step Length, Step Length by Height and Cadence." Equilibrium Research 55, no. 3 (1996): 270–74. http://dx.doi.org/10.3757/jser.55.270.

Full text

APA, Harvard, Vancouver, ISO, and other styles

50

Suttie, J. M., and B. Mitchell. "Jaw length and hind foot length as measures of skeletal development of Red deer (Cervus elaphus)." Journal of Zoology 200, no. 3 (August 20, 2009): 431–34. http://dx.doi.org/10.1111/j.1469-7998.1983.tb02321.x.

Full text

APA, Harvard, Vancouver, ISO, and other styles

Journal articles on the topic 'Development length'

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles