Results 111 to 120 of about 996,599 (191)

Determinants of Exclusive Breastfeeding for the First 6 Months Among Children Under Five in Internally Displaced Persons Camps in Eastern Democratic Republic of Congo; a Cross‐Sectional Study

open access: yesPublic Health Challenges, Volume 5, Issue 3, September 2026.
Eastern Democratic Republic of Congo's IDPs camps in Goma have very few mothers who are exclusively breastfeeding their children, which is less than half of what is considered the standard by both national and international guidelines. ABSTRACT Introduction Giving only breast milk in the first 6 months lowers the chances of childhood diseases and death.
Alimasi Kashafali   +19 more
wiley   +1 more source

Transforming China's Food Systems Through Joint Spatial Optimization and Management of Crop‐Livestock Production

open access: yesEarth's Future, Volume 14, Issue 9, September 2026.
Abstract The spatial segregation of crop and livestock production in China, a cornerstone of its agricultural industrialization, has created critical challenges for achieving sustainable food systems. However, the spatial segregation of crop and livestock systems driven by industrialization and market forces has led to inefficient resource use ...
Biao Luo   +8 more
wiley   +1 more source

Voltage‐gated calcium channel activity of gonadotropin‐releasing hormone (GnRH) neurons is altered by age and by prenatal androgen exposure in female mice

open access: yesJournal of Neuroendocrinology, Volume 38, Issue 9, September 2026.
Abstract Polyendocrine metabolic ovarian syndrome (PMOS), a common cause of infertility, is marked by persistently high luteinizing hormone (LH) pulse frequency, presumably driven by high‐frequency GnRH pulses. Prenatally androgenized (PNA) mice mimic neuroendocrine PMOS symptoms including high LH‐pulse frequency.
Xi Chen   +3 more
wiley   +1 more source

Statistical CSI-Based Downlink Precoding for Multi-Beam LEO Satellite Communications

open access: yesAerospace
With the rapid development of low-Earth-orbit (LEO) satellite communications, multi-beam precoding has emerged as a key technology for improving spectrum efficiency.
Feng Zhu   +3 more
doaj   +1 more source

The zero forcing span of a graph

open access: yes, 2023
In zero forcing, the focus is typically on finding the minimum cardinality of any zero forcing set in the graph; however, the number of cardinalities between $0$ and the number of vertices in the graph for which there are both zero forcing sets and sets ...
Jacob, Bonnie
core  

A hybrid ZF-SD method for MIMO Systems

open access: yes, 2006
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core  

A low complexity precoding based on weighted two diagonal iteration in massive MIMO system

open access: yesDianxin kexue, 2018
In massive MIMO systems,with the increase of the number of users and antennas,the complexity of the downlink zero forcing (ZF) precoding increases due to the existence of large matrix inversion.In order to reduce the complexity,an improved weighted two ...
Haiyan CAO   +4 more
doaj  

Zero forcing irredundant sets [PDF]

open access: yes
Irredundance has been studied in the context of dominating sets, via the concept of private neighbor. Here irredundance of zero forcing sets is introduced via the concept of a private fort and the upper and lower zero forcing irrdedundance numbers and ...
Curtis, Bryan   +2 more
core  

Exact MIMO zero-forcing detection analysis for transmitcorrelated Rician fading

open access: yes, 2014
—We analyze the performance of multiple input/mul-tiple output (MIMO) communications systems employing spatial multiplexing and zero-forcing detection (ZF).
Akimichi Takemura   +5 more
core  

Outage Performance Analysis of Multi-Antenna Full-Duplex NOMA Cellular Systems

open access: yesمهندسی مخابرات جنوب
We consider a full-duplex (FD) cellular network, where uplink (UL) and downlink (DL) transmissions are performed at the same time over the same frequency band by using the non-orthogonal multiple-access (NOMA) technique.
Ahmad Memarinejad   +2 more
doaj  

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