Body Weight
It is an important indicator of health and nutrition status, and is commonly used to assess and monitor growth, development, and weight management.
Factors influencing body weight include diet, physical activity, genetics, and various medical conditions.
Optimizing body weight through evidence-based protocols and products can help support overall wellbeing.
PubCompare.ai, an AI-driven platform, facilitates this process by locating the best research and enabling reproducible, accrurate comparisons to inform decision-making for body weight research.
Most cited protocols related to «Body Weight»
Txyz_restraints and Tadp_restraints are restraint terms that introduce a priori knowledge, thus helping to compensate for the insufficient amount of experimental data owing to finite resolution or incompleteness of the data set typically observed in macromolecular crystallography. Note that the restraint terms are not used in certain situations, for example rigid-body coordinate refinement, TLS refinement, occupancy refinement, f′/f′′ refinement or if the data-to-parameter ratio is extremely high. In these cases the total refinement target is reduced to Texp.
The weights wxcscale, wxc and wc (or wxuscale, wxu and wu, correspondingly) are used to balance the relative contributions of experimental and restraints terms. The automatic weight-estimation procedure is implemented as described in Brünger et al. (1989 ▶ ) and Adams et al. (1997 ▶ ) with some variations and is used by default to calculate wxc and wxu. The long-term experience of using a similar scheme in CNS and PHENIX indicates that it is typically robust and provides a good estimate of weights in most cases, especially at medium to high resolution. In cases where this procedure fails to produce optimal weights, a more time-intensive automatic weight-optimization procedure may be used, as originally described by Brünger (1992 ▶ ) and further adopted by Afonine et al. (2011 ▶ ), in which an array of wxcscale or wxuscale values is systematically tested in order to find the value that minimizes Rfree while keeping the overall model geometry deviations from ideality within a predefined range. The weight wc (or wu, correspondingly) is used to scale the restraints contribution, mostly duplicating the function of wxcscale (or wxuscale), while allowing an important unique option of excluding the restraints if necessary (for example, at subatomic resolution). Setting wc = 0 (or wu = 0) reduces the total refinement target to Texp.
In maximum-likelihood (ML)-based refinement (Pannu & Read, 1996 ▶ ; Bricogne & Irwin, 1996 ▶ ; Murshudov et al., 1997 ▶ ; Adams et al., 1997 ▶ ; Pannu et al., 1998 ▶ ) the calculation of the ML target (Lunin & Urzhumtsev, 1984 ▶ ; Read, 1986 ▶ , 1990 ▶ ; Lunin & Skovoroda, 1995 ▶ ) requires an estimation of model error parameters, which depend on the current atomic parameters and bulk-solvent model and scales. Since the atomic parameters and the bulk-solvent model are updated during refinement, the ML error model has to be updated correspondingly, as described in Lunin & Skovoroda (1995 ▶ ), Urzhumtsev et al. (1996 ▶ ) and Afonine et al. (2005a ▶ ).
Our pipeline executes the following steps:
Run UCHIME (Edgar et al., 2011 (link)) against the reference alignment to remove chimeric query sequences.
Use EPA to place the query sequences onto the reference tree. Sequences that have a maximum placement likelihood weight of <0.5 (i.e. an uncertain placement, see Berger et al., 2011 (link) for details) are discarded.
For each branch in the reference tree, we extract the set of query sequences that have been placed into that branch and infer a tree on them using RAxML (Stamatakis, 2006 (link)). Because the PTP method requires a correctly rooted tree, we use the following two rooting strategies: if the branch leads to a tip, apart from the query sequences, we extend the alignment by including the reference tree tip sequence and that reference sequence that is furthest away from the current tip. The most distant sequence is used as outgroup. Keep in mind, that thereby the tree will be rooted at the longest branch (see the discussion below). To analyze query sequence placements at internal branches, we use the RAxML −g constraint tree option to obtain a rooted tree of the query sequences. The constraint tree consists of the bifurcating reference tree and a polytomy comprising the query sequences attached to the reference tree branch under consideration. The result of this constrained ML tree search is a resolved tree of query sequences that are attached to the reference tree branch. The attachment point is used as root.
Because we assume that the reference phylogeny is a species tree that reflects our knowledge about the speciation process and rate, we initially estimate
When PTP is applied to a placement of query sequences on a terminal branch, those queries that are delimited as one population with the reference sequence at the tip will be assigned taxonomically to the species represented by this reference sequence. Otherwise, they are identified as new species in the reference tree.
The incremental lifetime cancer risk (ILCR) was used to assess the inhalation risk for the population in the Greater Salvador, where the bus station and the coastal site are located. ILCR is calculated as: where SF is the cancer slope factor of BaP, which was 3.14 (mg kg−1 d−1)−1 for inhalation exposure60 (link), EF (day year−1) represents the exposure frequency (365 days year−1), ED (year) represents exposure duration to air particles (year), cf is a conversion factor (1 × 10−6), AT (days) means the lifespan of carcinogens in 70 years (70 × 365 = 25,550 days)70 ,72 , and BW (kg) is the body weight of a subject in a target population71 .
The risk assessment was performed considering four different target groups in the population: adults (>21 years), adolescents (11–16 years), children (1–11 years), and infants (<1 year). The IR for adults, adolescents, children, and infants were 16.4, 21.9, 13.3, 6.8 m3 day−1, respectively. The BW was considered 80 kg for adults, 56.8 kg for adolescents, 26.5 kg for children and 6.8 kg for infants70 .
Most recents protocols related to «Body Weight»
Example 3
Moulded Silicone Pressure Sensitive Adhesive Body:
Dow Corning 7-9800 A&B (mixing ration between A and Bis 1:1 by weight) were used for production of a PDMS based adhesive body. A mould having a triangular shape (each side of the triangular mould having a distance of 300 mm, the center part having a thickness of 0.5 mm and the edge having a thickness of 0.1 mm) was used. The components were thoroughly mixed and applied on a 50 μm cover layer of silicone rubber lining in the female part of a triangular mould and a male mould part was placed on top, said part lined with a low density polyethylene release liner. The adhesive was cured in an oven at 100 degree C. for 15 minutes. After curing the adhesive was punched out of the mould and a dent in the centre of the adhesive body device for embedment of an electronic sensing system was punched out.
Example 6
ICP is monitored using a Samba 420 Sensor, pressure transducer, with a Samba 202 control unit (Harvard Apparatus, Holliston, MA). This ICP monitoring system consists of a 0.42 mm silicon sensor element mounted on an optical fiber. A 20-gauge syringe needle is implanted through the cisterna magna to a depth of ˜1 cm. The needle then acts as a guide for insertion of the Samba Sensor and the site of implantation and the open end of the needle are sealed with 100% silicone sealant. A baseline ICP reading is established followed by a water bolus IP injection (20% weight of animal) with or without Compound 1. ICP is monitored until the animal expires from the water load.
Adjusting for the slight rise in ICP observed in the animals when they are monitored without the water bolus injection (
Example 4
Composition H was manufactured according to the following procedure:
- a) Specified amount of purified water was taken in a suitable container and specified quantity of docusate sodium was added and stirred continuously to obtain a solution.
- b) Sodium lauryl sulphate was added to the step (a) solution and stirred continuously to obtain a solution.
- c) Hydroxypropyl methyl cellulose was added to the step (b) solution and stirred continuously to obtain a solution.
- d) Mifepristone was added to the step (c) solution and stirred for 5 minutes to obtain Mifepristone dispersion.
- e) Mifepristone dispersion was homogenized using IKA's Ultra TURRAX® homogenizer at 1000 RPM for 15 minutes.
- f) The above homogenized mifepristone slurry was nano-sized in ball-mill chamber to obtain nano-suspension containing desired particle size of mifepristone. The particle size distribution was measured by using Mastersizer 3000 particle analyser.
- g) Specified quantities of the silicified microcrystalline cellulose and sodium starch glycolate were dispensed in a bowl and warmed to reach 28° C. to 30° C. temperature.
- h) The nano-sized mifepristone suspension according to step (f) was sprayed onto the warmed intra-granular material according to step (g). The sprayed granules were dried at a temperature of 50° C. to 65° C. and sieved through 30 number mesh sieve.
- i) Specified quantities of milled granules of step (h), sodium starch glycolate, microcrystalline cellulose, colloidal silicon dioxide and magnesium stearate were blended and compressed using tablet compression machine. The tablets according to step (i) were coated with suitable coating materials.
Example 19
The above silk solutions were transformed to a silk powder through lyophilization to remove bulk water and chopping to small pieces with a blender. pH was adjusted with sodium hydroxide. Low molecular weight silk (−25 kDa) was soluble while high molecular weight silk (−60 kDa) was not.
The lyophilized silk powder can be advantageous for enhanced storage control ranging from 10 days to 10 years depending on storage and shipment conditions. The lyophilized silk powder can also be used as a raw ingredient in the pharmaceutical, medical, consumer, and electronic markets. Additionally, lyophilized silk powder can be re-suspended in water, HFIP, or an organic solution following storage to create silk solutions of varying concentrations, including higher concentration solutions than those produced initially.
In an embodiment, aqueous pure silk fibroin-based protein fragment solutions of the present disclosure comprising 1%, 3%, and 5% silk by weight were each dispensed into a 1.8 L Lyoguard trays, respectively. All 3 trays were placed in a 12 ft2 lyophilizer and a single run performed. The product was frozen with a shelf temperature of ≤−40° C. and held for 2 hours. The compositions were then lyophilized at a shelf temperature of −20° C., with a 3 hour ramp and held for 20 hours, and subsequently dried at a temperature of 30° C., with a 5 hour ramp and held for about 34 hours. Trays were removed and stored at ambient conditions until further processing. Each of the resultant lyophilized silk fragment compositions were able to dissolve in aqueous solvent and organic solvent to reconstitute silk fragment solutions between 0.1 wt % and 8 wt %. Heating and mixing were not required but were used to accelerate the dissolving rate. All solutions were shelf-stable at ambient conditions.
In an embodiment, an aqueous pure silk fibroin-based protein fragment solution of the present disclosure, fabricated using a method of the present disclosure with a 30 minute boil, has a molecular weight of about 57 kDa, a polydispersity of about 1.6, inorganic and organic residuals of less than 500 ppm, and a light amber color.
In an embodiment, an aqueous pure silk fibroin-based protein fragment solution of the present disclosure, fabricated using a method of the present disclosure with a 60 minute boil, has a molecular weight of about 25 kDa, a polydispersity of about 2.4, inorganic and organic residuals of less than 500 ppm, and a light amber color.
Example 2
Dosage forms B and C were prepared as follows. 20 wt % acetaminophen drug particles were first mixed with the excipient, 80 wt % HPMC of molecular weight 120 kg/mol. The mixture was then combined with a solvent, either DMSO (for preparing dosage form B) or water (for dosage form C). The volume of solvent per mass of excipient was 5.5 ml/g and 3.33 ml/g, respectively, for preparing dosage forms B and C. The drug-excipient-solvent mixture was then extruded through a laboratory extruder to form a uniform viscous paste. The viscous paste was put in a syringe equipped with a hypodermic needle of inner radius, Rn=130 μm (for preparing dosage form B) or Rn 500 μm (for preparing dosage form C). The paste was then extruded through the needle and patterned as a fibrous dosage form with cross-ply arrangement of fibers. The nominal inter-fiber distance in a ply was uniform and equal to 730 μm (for preparing dosage form B) or 2800 μm (for preparing dosage form C). During and after patterning, warm air at a temperature of 60° C. and a velocity of about 2.3 m/s was blown over the fibrous dosage forms for a time, tdry˜40 minutes, to evaporate the solvent and freeze the structure. The process parameters to prepare the dosage forms are summarized in Table 1. After drying, the structure was trimmed to a square disk shaped dosage form of side length, L0˜8 mm. The thickness, H0, of the dosage forms B and C was about 3 mm.
Single fibers B and C were prepared as dosage forms B and C, but without structuring the fibrous extrudate to a dosage form.