Article
Biology
Jocelyn C. Lee, Thomas Hansen, Peter L. Davies
Summary: Accurately recording the temperature of ice nucleation is crucial for studying biological ice nucleators. In this study, a commercially available nanoliter osmometer was used to measure ice nucleation temperatures close to -38 degrees Celsius. The results obtained were consistent with those obtained using other commonly used instruments.
Article
Environmental Sciences
Yijie Wang, Liming Hu
Summary: This study presents a novel theoretical model for predicting the soil freezing characteristic curve (SFCC) by calculating the chemical potential and respective pressures of soil water and ice. The model captures the differences in freezing behaviors between adsorbed and capillary water. Experimental measurements confirmed the validity of the model, which outperformed the conventional method in predicting SFCC for soil with high adsorbed water content. The model provides insights into the mechanisms of soil water freezing and offers a theoretical framework for analyzing and predicting frozen soil behaviors.
WATER RESOURCES RESEARCH
(2023)
Article
Environmental Sciences
Alexander P. Mathews
Summary: The disposal of water softening residuals is a global issue due to lack of effective reuse alternatives, leading to high costs and environmental harm. Research on using water softening residuals for producing biodegradable road deicers as a replacement for harmful chloride salts is effective and sustainable.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2021)
Article
Chemistry, Physical
Lida Yan, Derek Scott, Ganesh Balasubramanian
Summary: In this study, the performance of two force fields, OPLS-AA and Madrid-2019, in predicting the freezing point depression of aqueous CaCl2 solutions was compared. The results showed that Madrid-2019 exhibited better predictive consistency and advantages in describing the ion-water and ion-ion interaction mechanisms compared to OPLS-AA.
JOURNAL OF MOLECULAR LIQUIDS
(2023)
Article
Chemistry, Physical
Marika Santagata, Cliff T. Johnston
Summary: This study examines the properties and roles of water molecules in halloysite, particularly their freezing and dehydration processes. The results show that the interlayer water in halloysite does not freeze and that the water molecules trapped in the cavities are more hydrogen bonded and more ordered.
APPLIED CLAY SCIENCE
(2022)
Article
Soil Science
Lianhai Zhang, Chengsong Yang, Dayan Wang, Peng Zhang, Yida Zhang
Summary: The freezing point depression of soil water is influenced by the spatially varied pore water pressure, and the Clausius-Clapeyron equation can be applied to soil water. These findings provide new insights into the mechanisms of freezing point depression and have been verified through experiments with different soil types and water conditions.
Article
Environmental Sciences
Muhammad Saad Khan, Alamin Idris, Jai Krishna Sahith Sayani, Bhajan Lal, Iqbal Ahmed Moujdin, Khalik M. Sabil
Summary: This study focuses on the effect of four ammonium hydroxide-based ionic liquids (AHILs) on gas hydrate systems, specifically freezing point depression and hydrogen bonding energy interaction. The findings reveal that increasing the alkyl chain length of AHILs reduces the freezing point depression due to a decrease in hydrogen bonding ability. Higher concentrations of AHILs result in lower freezing point temperatures, positively influencing hydrate mitigation. Further research is needed to develop a more generalized correlation to predict the potential of other ionic liquids as hydrate inhibitors.
Review
Ophthalmology
Hugo Pena-Verdeal, Carlos Garcia-Resua, Jacobo Garcia-Queiruga, Belen Sabucedo-Villamarin, Eva Yebra-Pimentel, Maria Jesus Giraldez
Summary: The osmolarity of tear film varies throughout the day and can be influenced by factors such as time, health condition, and environment. Clinicians should consider the diurnal variations in tear film osmolarity when making diagnoses to ensure accuracy.
CLINICAL AND EXPERIMENTAL OPTOMETRY
(2023)
Article
Engineering, Civil
Mousong Wu, Qiang Zhao, Per-Erik Jansson, Jingwei Wu, Xiao Tan, Zheng Duan, Kang Wang, Peng Chen, Minjie Zheng, Jiesheng Huang, Wenxin Zhang
Summary: This study quantified the impacts of salt on soil water and heat transport in saline soils through field experiments and model calibration. The addition of a new module significantly improved the model's representation of soil freezing point depression and can be a useful tool for addressing salinization issues in mid-to-high latitudes.
JOURNAL OF HYDROLOGY
(2021)
Article
Chemistry, Multidisciplinary
Mariana Hugo Silva, Sarah P. Hudson, Lidia Tajber, Matthieu Garin, Wenyu Dong, Tatsiana Khamiakova, Rene Holm
Summary: This study investigated the difference in methods to determine the osmolality in solutions of stabilizers used for long-acting injectable suspensions. The results showed that the osmolality increased with increasing concentration for all polymers and surfactants, regardless of the measuring method used. Different measurement methods yielded different osmolality values for PVPs, PEGs, and Na-CMC. The vapor pressure method may be more suitable when the formulations contain higher concentrations of excipients and/or thermosensitive excipients.
PHARMACEUTICAL RESEARCH
(2023)
Article
Environmental Sciences
S. K. Amankwah, A. M. Ireson, C. Maule, R. Brannen, S. A. Mathias
Summary: The phenomenon of freezing point depression in frozen soils is caused by capillary and adsorption effects and solute effects, with salts lowering the freezing temperature. The soil freezing characteristic curve (SFC) characterizes the relationship between liquid water content and temperature in frozen soils. Studies suggest that salinity plays a dominant role in determining the SFC in soils containing solutes.
WATER RESOURCES RESEARCH
(2021)
Article
Chemistry, Multidisciplinary
Zicheng Niu, Yongshi Wang, Zheng Li, Ru Wang, Xin Wang, Xiuhong Wang
Summary: The freezing point of crude oils is an important factor in the exploration, development, and transportation processes. In the Dongying Sag, there is a wide variation in freezing points, with high-freezing-point crude oils found in different structural belts. The wax and resin + asphaltene content are key factors controlling the freezing point. Different types of high-freezing-point crude oils are generated from different source rocks. The composition and alteration of organic matter during migration and accumulation play a role in the formation of high-freezing-point crude oils in lacustrine basins.
Article
Green & Sustainable Science & Technology
Tauqeer Abbas, Dayakar Naik Lavadiya, Ravi Kiran
Summary: Deicing pavements is crucial for ensuring safe traffic movement in snowy and icy regions, where the addition of sodium chloride can lower the freezing point of water. Research has shown that in extremely cold areas, adding agricultural products like polyols can help further depress the freezing point of brine solutions for deicing applications.
Article
Thermodynamics
Michal Palacz, Edyta Piechnik, Michal Halski, Michal Stebel, Wojciech Adamczyk, Trygve M. Eikevik, Jacek Smolka
Summary: Food freezing technologies play a crucial role in food preservation and shelf life extension, with hydrofluidisation freezing showing promise as an efficient method.
INTERNATIONAL JOURNAL OF REFRIGERATION
(2021)
Article
Geosciences, Multidisciplinary
Jun Bi, Zhijian Wu, Yu Lu, Haiyan Wen, Yingmin Zhang, Yunxia Shen, Tingting Wei, Guoxu Wang
Summary: The Soil Freezing Characteristic Curve (SFCC) describes the relationship between unfrozen water content and subzero temperature. This study investigated the impacts of initial water content, dry density, soil type, and desalination on SFCC during freezing-thawing process. Results showed that initial water content, soil type, and desalination greatly influenced SFCC, while dry density had little effect. Hysteresis behavior was observed in all soil samples, more obvious in the temperature range of -5°C < T < 0°C.
FRONTIERS IN EARTH SCIENCE
(2023)
Review
Ophthalmology
Hugo Pena-Verdeal, Carlos Garcia-Resua, Jacobo Garcia-Queiruga, Belen Sabucedo-Villamarin, Eva Yebra-Pimentel, Maria Jesus Giraldez
Summary: The osmolarity of tear film varies throughout the day and can be influenced by factors such as time, health condition, and environment. Clinicians should consider the diurnal variations in tear film osmolarity when making diagnoses to ensure accuracy.
CLINICAL AND EXPERIMENTAL OPTOMETRY
(2023)
Article
Ophthalmology
Jacobo Garcia-Queiruga, Hugo Pena-Verdeal, Belen Sabucedo-Villamarin, Carlos Garcia-Resua, Maria J. Giraldez, Eva Yebra-Pimentel
Summary: By analyzing MGLA, conjunctival hyperemia, and corneal staining, it is possible to distinguish the severity levels of EDE. Participants with severe EDE have higher values of MGLA, conjunctival hyperemia, and corneal staining compared to those with mild or moderate EDE, as well as healthy participants.
OCULAR IMMUNOLOGY AND INFLAMMATION
(2023)
Article
Ophthalmology
Hugo Pena-Verdeal, Veronica Noya-Padin, Martin Losada-Oubina, Marcos Saborido-Rey, Manuel Vilas-Alonso, Maria J. Giraldez
Summary: The study aimed to evaluate the impact of silicone-hydrogel and hydrogel contact lenses on symptomatology, tear film dynamics, and ocular surface integrity in novice contact lens wearers. The results showed that contact lens wear had an impact on ocular parameters, and the materials of the lenses also had specific influences on these parameters.
EUROPEAN JOURNAL OF OPHTHALMOLOGY
(2023)
Article
Ophthalmology
Jacobo Garcia-Queiruga, Hugo Pena-Verdeal, Belen Sabucedo-Villamarin, Maria J. Giraldez, Carlos Garcia-Resua, Eva Yebra-Pimentel
Summary: The study aimed to find the relationship between non-modifiable and modifiable risk factors and different Dry Eye Disease (DED) diagnostics. A total of 400 participants were included, and their data was analyzed using logistic regression. The results showed that thyroid disease could be a risk factor for DED. No association was found with Pre-clinical DED or Predisposition to DED.
CONTACT LENS & ANTERIOR EYE
(2023)
Article
Engineering, Biomedical
Veronica Noya-Padin, Jacobo Garcia-Queiruga, Maria Iacubitchii, Maria J. Giraldez, Eva Yebra-Pimentel, Hugo Pena-Verdeal
Summary: This study compared measurements from two biometers (contact ultrasonic EchoScan US-800 and non-contact optical Lenstar LS900) with and without contact lenses, and explored the relationship between ocular and body biometric parameters. The results showed differences between the biometry data from the two devices, and wearing contact lenses affected the measurements. Body height and foot length were correlated with ocular dimensions, and most ocular biometric values were positively correlated.
EXPERT REVIEW OF MEDICAL DEVICES
(2023)
Article
Ophthalmology
Veronica Noya-Padin, Noelia Nores-Palmas, Maria Jesus Giraldez, Eva Yebra-Pimentel, Hugo Pena-Verdeal
Summary: This study compared the measurements of ocular biometric values with and without contact lenses. The results showed that contact lens wear affected several biometric values and corneal-compensated intraocular pressure. However, lens thickness and vitreous length measurements were not affected by contact lens use, and ACD measurements from different devices were not interchangeable.
EYE & CONTACT LENS-SCIENCE AND CLINICAL PRACTICE
(2023)
Editorial Material
Ophthalmology
Belen Sabucedo-Villamarin, Hugo Pena-Verdeal, Jacobo Garcia-Queiruga, Maria J. Giraldez, Carlos Garcia-Resua, Eva Yebra-Pimentel
Article
Ophthalmology
Jacobo Garcia-Queiruga, Hugo Pena-Verdeal, Belen Sabucedo-Villamarin, Maria J. J. Giraldez, Carlos Garcia-Resua, Eva Yebra-Pimentel
Summary: This study examined the association between Meibomian Gland (MG) secretion quality and symptoms of ocular discomfort, hours of Video Display Terminals (VDT) use, eyelid margin abnormalities, conjunctival hyperemia, and Meibomian Gland Loss Area (MGLA) in university students. The results showed a significant positive correlation between MG secretion quality and eyelid margin hyperemia, MG orifices plugging, MGLA, and conjunctival hyperemia. However, no direct relationship between MG secretion quality and hours of VDT use or OSDI was found.
INTERNATIONAL OPHTHALMOLOGY
(2023)
Review
Ophthalmology
Hugo Pena-Verdeal, Jacobo Garcia-Queiruga, Noelia Nores-Palmas, Veronica Noya-Padin, Maria J. Giraldez, Eva Yebra-Pimentel
Summary: Maintaining a healthy balance of tear production, preservation, and elimination is crucial for proper eye function. Tear osmolarity and its variations are reliable indicators for diagnosing high-prevalence pathologies such as dry eye disease. However, obtaining tear osmolarity from a specific location may not accurately reflect values in other compartments.
SPEKTRUM DER AUGENHEILKUNDE
(2023)