Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Self-Concept01:19

Self-Concept

1.6K
Self-concept is the cognitive and emotional understanding individuals hold about their identity. It evolves through various developmental stages, beginning in infancy and maturing as children grow. This concept influences how individuals perceive their abilities, interact with others, and manage challenges throughout life.
Infancy and Emerging Recognition
During infancy, self-concept is virtually nonexistent. Babies do not distinguish themselves as separate entities and often mistake their...
1.6K
Leaky Scanning02:28

Leaky Scanning

5.7K
During most eukaryotic translation processes, the small 40S ribosome subunit scans an mRNA from its 5' end until it encounters the first start AUG codon. The large 60S ribosomal subunit then joins the smaller one to initiate protein synthesis. The location of the translation initiation is largely determined by the nucleotides near the start codon as there may be multiple translation initiation sites present on the mRNA.  Marilyn Kozak discovered that the sequence RCCAUGG (where R...
5.7K
Formula Mass and Mole Concepts of Compounds02:56

Formula Mass and Mole Concepts of Compounds

80.8K
Formula Mass of Covalent Compounds
80.8K
Concepts and Prototypes01:24

Concepts and Prototypes

527
The human nervous system handles vast amounts of information by translating sensory stimuli into neural impulses, which the brain processes, creating thoughts expressed through language or stored as memories. The brain also synthesizes information from emotions and memories, which significantly influence thoughts and behaviors. This intricate process creates a comprehensive mental picture.
The brain organizes this information using concepts, which are mental categories grouping linguistic data,...
527
Understanding Self-Concept01:20

Understanding Self-Concept

236
The self-concept encompasses individuals' beliefs about themselves, structured through cognitive frameworks known as self-schemas. These schemas function as mental representations of specific traits or behaviors, influencing how self-relevant information is perceived, processed, and remembered. For example, individuals who are schematic for body weight are more likely to interpret routine experiences—such as dining out or shopping—through the lens of that trait. Conversely, those...
236
Concept of Pressure at a Point01:15

Concept of Pressure at a Point

729
The concept of pressure at a point in a fluid establishes that pressure within a fluid is uniform in all directions at a specific location. This uniformity occurs because fluid molecules exert force evenly across any point due to their random motion and continuous collisions within the fluid. Pressure at a point is determined by the surrounding fluid molecules and is influenced by factors like depth and density, rather than by shape or orientation.
In a fluid at rest, pressure acts equally in...
729

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Evaluation of the role of post-partum ultrasound of cesarean delivery scar on subsequent pregnancy outcomes: a preliminary study.

BMC pregnancy and childbirth·2026
Same author

Sonography-Assisted Management of Suspected Retained Products of Conception upon Completion of the Puerperium: A Prospective Single-Center Study.

Journal of ultrasound in medicine : official journal of the American Institute of Ultrasound in Medicine·2026
Same author

Fetal urinary ascites caused by bladder rupture due to paraurethral cyst: a rare case.

Archives of gynecology and obstetrics·2026
Same author

Incidence and clinical manifestations of sudden death in young adults: a two-decade, nationwide, retrospective, cross-sectional study.

Resuscitation plus·2026
Same author

Fertility and Obstetric and Clinical Outcomes following Embolization Management of Symptomatic Pregnancy-Related Arteriovenous Malformations: Two Decades of Follow-up from a Tertiary Medical Center.

Ultraschall in der Medizin (Stuttgart, Germany : 1980)·2026
Same author

[Eppur Si Muove ("And Yet It Moves") - Women's Medicine in the 21st Century].

Harefuah·2026

Related Experiment Video

Updated: Jan 24, 2026

A Novel Use of Three-dimensional High-frequency Ultrasonography for Early Pregnancy Characterization in the Mouse
07:04

A Novel Use of Three-dimensional High-frequency Ultrasonography for Early Pregnancy Characterization in the Mouse

Published on: October 24, 2017

8.9K

Is scanning for vasa previa important for singleton pregnancies that started as multiple conceptions?

Yaakov Melcer1, Marina Pekar-Zlotin1, Brian Wolf1

  • 1Department of Obstetrics and Gynecology, The Yitzhak Shamir Medical Center (formerly Assaf Harofeh Medical Center), Zerifin, Israel(1).

European Journal of Obstetrics, Gynecology, and Reproductive Biology
|May 26, 2019
PubMed
Summary

Pregnancies starting as multiples but resulting in a single fetus show a significantly higher risk of vasa previa (VP). This finding suggests early screening for VP in all multiple gestations, even if they later become singletons.

Keywords:
Multiple gestationRisk factorsScanningUltrasoundVanishing twinVasa previa

More Related Videos

Mouse Model of Surgical Uterine Injury and Subsequent Pregnancy Outcomes
04:08

Mouse Model of Surgical Uterine Injury and Subsequent Pregnancy Outcomes

Published on: June 27, 2025

1.1K
Assessment of Maternal Vascular Remodeling During Pregnancy in the Mouse Uterus
06:55

Assessment of Maternal Vascular Remodeling During Pregnancy in the Mouse Uterus

Published on: December 5, 2015

14.1K

Related Experiment Videos

Last Updated: Jan 24, 2026

A Novel Use of Three-dimensional High-frequency Ultrasonography for Early Pregnancy Characterization in the Mouse
07:04

A Novel Use of Three-dimensional High-frequency Ultrasonography for Early Pregnancy Characterization in the Mouse

Published on: October 24, 2017

8.9K
Mouse Model of Surgical Uterine Injury and Subsequent Pregnancy Outcomes
04:08

Mouse Model of Surgical Uterine Injury and Subsequent Pregnancy Outcomes

Published on: June 27, 2025

1.1K
Assessment of Maternal Vascular Remodeling During Pregnancy in the Mouse Uterus
06:55

Assessment of Maternal Vascular Remodeling During Pregnancy in the Mouse Uterus

Published on: December 5, 2015

14.1K

Area of Science:

  • Perinatology
  • Maternal-Fetal Medicine
  • Congenital Disorders

Background:

  • Vasa previa (VP) is a rare placental condition where fetal blood vessels cross the cervix, posing high risks if undetected.
  • Identifiable risk factors for VP include in-vitro fertilization, multiple gestations, and placental abnormalities.
  • Standardized prenatal screening protocols are needed for high-risk pregnancies.

Purpose of the Study:

  • To investigate the prevalence and risk of vasa previa (VP) in pregnancies that began as multiple gestations but resulted in a single fetus.
  • To determine if pregnancies with a vanishing twin have an increased risk of VP compared to ongoing multiple gestations.

Main Methods:

  • Retrospective review of medical records from 2006-2018 for early multiple pregnancies ending as singletons.
  • Inclusion of cases with vanishing twins and multifetal reductions.
  • Institutional Clinical Research Committee approval obtained.

Main Results:

  • Four out of 50 pregnancies (8.0%) that started as multiple gestations but ended as singletons were diagnosed with VP.
  • A statistically significant increase in VP prevalence was observed (8.0% vs. 0.2% in multiple pregnancies, p < 0.0001).
  • The odds ratio for VP in these cases was 41.1, indicating a substantially elevated risk.

Conclusions:

  • Conceptions starting as multiple gestations but continuing as singletons have a significantly increased risk of vasa previa (VP).
  • Consideration should be given to screening all initial multiple gestations for VP, regardless of later fetal numbers.
  • Further research is warranted to confirm these findings and refine screening guidelines.