Abstract: An earpiece adapts to the acoustics characteristics and needs of its user to provide a perceptually transparent hearing protection, apart from uniform loudness reduction. An occlusion effect (OE) active noise control (ANC) system reduces the augmented perception of one's own voice while occluded. This occlusion effect active control adapts to the specific acoustic characteristics of the user to provided better control of the details occlusion effect reduction, and enhanced performances relative to fixed or one-size-fits-all solutions. An isolation effect (IE) filtering algorithm adapts itself to the user's acoustic characteristics to provide a uniform attenuation either in dB or in phons. Additionally, the device may be used as an in-ear monitor that also adapts to its user characteristics to provide in-ear quality sound.

Abstract: Wounds and temporary appliances can be protected against liquid contamination using a prophylactic dressing. The dressing includes a liquid resistant sheet and disposed thereon a first liquid barrier/adhesive strip and a second liquid barrier/adhesive strip wherein the first and second liquid barrier/adhesive strips are concentric; located at or near the periphery of the liquid resistant sheet; and are separated from one another by a gap. Adsorbent's and liquid indicators can be employed within the gap to add further functionality to the dressing. Also disclosed herein is a support useful for stabilizing leads to transcutaneous or percutaneous devices.

Abstract: A water-resistant orthopedic undercast sleeve that includes a tubular sheet material formed of extruded filaments having water-resistant properties and a thickness sufficient to provide both cushioning and moisture transport in a single layer between a cast and a limb onto which the sleeve is applied. The water resistant properties are achieved by at least one process, including a water-resistant filler, finish or coating applied to the filaments during extrusion, applying a water resistant finish to the finish during extrusion, applying a water resistant finish to the filaments during a subsequent spinning process, or coating the filaments with a water-resistant finish in a separate process. Moisture egress channels are formed in the sheet material for transporting moisture away from the limb, longitudinally along the length of the sleeve, and out of the space between the sleeve and cast.

Abstract: A method including: placing at least one elastic member stretchable in the carrying direction so that at least one elastic member extends in base portions of each continuous portion located at the same positions in the carrying direction as protruding portions or in the protruding portions; and intermittently folding the divided non-woven fabrics so that the elastic member is sandwiched between the base portions and the protruding portions and so that layered portions are formed, each layered portion including a protruding portion laid on a base portion adjacent to the protruding portion.

Abstract: A wound cleansing assembly, which includes or is a wound cleansing cloth (1), having at least one carrier layer (2) and threads (3) disposed on the carrier layer (2) and protruding from the carrier (2), preferably made exclusively of synthetic fibers, preferably plastic fibers.

Abstract: Remotely detecting the presence of urine or feces in a diaper of an infant or adult using a disposable sensor placed inside the diaper, in conjunction with a permanent device that is capable of wirelessly transmitting data to a mobile device or base station is disclosed. The permanent device can also be capable of measuring temperature and body movements. This additional information can be used in conjunction with the detection of urine or feces to identify patterns.

Abstract: A middle part in the width direction of a three-dimensional gather of an absorbent article is joined with a side edge portion of a liquid permeable surface sheet, and a folded portion folded back to a side at an inner side of the joint portion is formed. The folded portion is defined by an end area, a urinary-opening facing area, and a middle area. In the end area and the middle area, a portion on an inner side in the width direction of the folded portion is joined with the liquid permeable surface sheet, and a projection with an end of a portion on an outer side in the width direction rather than the joint portion as a free end portion is formed.

Abstract: A surge material for use in disposable absorbent personal care products includes a wearer-facing surface, a plurality of elongate grooves in the wearer-facing surface, and a plurality of apertures disposed in the grooves and extending through the surge material. The surge material can also have an average material plane and including a plurality of ridges extending in a z-direction from the average material plane, a plurality of grooves alternating with the plurality of ridges, wherein the grooves extend in the opposite z-direction from the average material plane, and a plurality of apertures through the surge material, wherein the apertures are disposed only in the grooves. The surge material can also include a hydrophobic treatment agent disposed on the ridges and a hydrophilic treatment agent disposed within the grooves.

Abstract: An absorber includes a concave groove-shaped body fluid inflow portion along a longitudinal direction of an incontinence pad and over a range in the longitudinal direction including a body fluid discharge portion of a wearer, and a granular powder superabsorbent resin is arranged at least on a side edge portion of the absorber and over the range in the longitudinal direction including the body fluid inflow portion. Since the body fluid flowing into the body fluid inflow portion is diffused and is absorbed and held in the superabsorbent resin on the side edge portion of the absorber, it is possible to provide an adequate absorbed amount in the absorber despite the concave groove in the absorber. Even when the superabsorbent resin becomes swollen with absorbed body fluid, the body fluid inflow portion is not blocked, with the result that the absorption speed is not reduced.

Abstract: A wheelchair frame comprises a base frame having a geometry that is structured and configured to be adjustable about a fixed pivot, wherein the base frame comprises a central frame and frame component that are adjustable via an angular adjustment.

Abstract: A mounting clamp assembly that provides at least one support point for a wheelchair back mounting assembly, the mounting clamp assembly includes a clamp block and threaded clamp fastener extending through the clamp block and engaging a support by which the mounting clamp can be secured to a wheelchair cane; the mounting clamp assembly can be easily disassembled and adjusted to accommodate upright frame members of various diameters without the use of a tool.

Abstract: The invention relates to a backrest assembly for a wheelchair with a backrest frame pivotally connected to a seat or seat frame, a carrying means provided by or attached to the backrest frame, a rotating means rotatable secured to the carrier means, a first sliding means slidable connected to the backrest frame on the rear side of the backrest assembly and connected to the rotating means via a first mechanical link, a second sliding means slidable secured to the backrest frame on the front of the backrest assembly and connected to the rotating means via a second mechanical link, and an actuator for adjusting the backrest assembly between an upright and reclined position with the actuator being connected to the first sliding means for driving the second sliding means via the rotating means to perform a sinusoidal movement.

Abstract: Pertaining to hospital bed, development provides comfortable lavatory services to bedridden patients with mobility difficulties. The novelty introduced here is integration of a hospital bed with a bed-level sliding disposable pan at midsection of the bed to allow patients who endure immobility to perform in-bed toileting with no physical pressure and less psychological challenges while remaining clean and sanitized. This invention would best be useful for hospitals, home health care or other health care facilities and settings.

Abstract: A patient support apparatus includes an air supply and an air fluidization therapy bed including a fluidization space and a fluidizable medium positioned in the fluidization space. The air fluidization therapy bed receives a flow of pressurized air from the air supply. The flow of pressurized air operable to fluidize the fluidizable medium. The patient support apparatus is configured to provide other therapies, such as pulmonary therapies, in addition to the air fluidization therapy.

Abstract: A system for preventing and treating pressure sores of a bed-ridden patient including an array of expandable and collapsible supports to support and provide pressure relief to a patient in pressure locations where the expandable and collapsible supports support the patient; pressure sensors associated with the expandable and collapsible supports to monitor pressure locations where the expandable and collapsible supports support the patient; and a patient lift movable between the expandable and collapsible supports to raise and lower the patient between at least a position where the patient is primarily supported by the array of expandable and collapsible supports and a position above the expandable and collapsible supports where the patient is primarily supported by the patient lift.

Abstract: A bedside unit provides assistance and/or services to a patient in a bed. The unit includes a first vertical tubular shaft fixed to the floor and a second tubular shaft arranged around the first shaft and moveable relative to the first shaft under the action of a height adjustment mechanism. The apparatus for providing assistance and/or services includes drawers, an overbed table and an egress bar which are arranged to be controllably pivotable about the second shaft. The unit also includes a patient transfer arm at the top of the first shaft and rotatable thereabout.

Abstract: A patient ceiling lift system including motor units that are attached to independent pivotable support members of a support frame assembly. The motor units are able to pivot on the support frame and relative to one another, which enables the motor units to follow the loading direction on tension support members connectable to a patient sling and eliminate motor unit side loading.

Abstract: A portable assistive lift comprising a vertical member comprising a handle bar and a central wheel controlled by the handle bar disposed at the top and bottom extremities thereof respectively, a pair of left and right support members, each of which comprising a horizontal top rod extending from the vertical member, a bottom rod comprising a side wheel receptacle for receiving a side wheel therewithin disposed at a distal extremity thereof and a connecting rod connecting the free and proximal extremities of the top and bottom rods respectively whereby, the vertical member and the top, bottom and the connecting rods from a U-shaped structure as viewed from top and a hook stand comprising a plurality of hooks about which a sling is coupled thereto wherein, the hook stand is adapted to be elevated and lowered.

Abstract: A device, for grasping a limp body, such as a paraplegic or a quadriplegic patient (19), and transferring the body to another location or moving it into a different position, comprises two pivotally connected sections (12,13), one positioned to grasp the torso portion (18), the other the pelvic one (17). The sections can be kept in line with each other or pivoted toward each other to place the patient in a seated position. Each section comprises an upper frame (14) from the opposite longitudinal edges of which extends a pair of articulated grasping members positioned to move astride the torso or pelvis of the patient. The members include series of transversal cantles which can be directed to curl inwardly toward each other and securely enwrap and grab the load. The frame and the supported patient can then be hoisted, moved and deposited into a supine or seating position. Each member includes a series of successively hinged segments tilted by pulling cables.

Abstract: A patient support apparatus includes a mattress having a seat and a leg portion which are deflatable during movement of the patient support apparatus. The mattress includes a covering that is generally air impermeable so that a negative pressure can be developed inside of the covering.

Abstract: An arm mechanism includes a first arm, which is hollow, a second arm, and a connection portion for mutually rotatably connecting the first arm and the second arm. A connection portion 15 includes a rotary shaft extending in a direction perpendicular to an axial direction of a first arm 11 and a second arm 12, a friction portion for generating a frictional force against rotation of the rotary shaft, and a biasing member which is housed in the first arm, has an end portion facing away from the rotary shaft and connected to the first arm, has an end portion facing the rotary shaft and connected to the second arm via a connection member, and generates a contraction force which is increased with an increase in angle between an axis of the second arm and an axis of the first arm by rotation of the rotary shaft.

Abstract: A patient support apparatus includes a surgical table and a limb support unit coupled to the surgical table. The limb support unit includes a support platform coupled to the surgical table in a fixed position, a first limb holder coupled to the support platform in a fixed position relative to the support platform, and a second limb holder coupled to the support platform and spaced apart from the first limb holder. The first limb holder includes a multi-axis joint coupled to the support platform in a fixed position and a spar coupled to the multi-axis joint to move relative to the support platform while supporting a patient's limb that has been coupled to the spar.

Abstract: A fastening device is disclosed. The fastening device has a housing having a receptacle that receives a coupler of an operating table device and a locking member connected to the housing and movable relative to the housing between a locked position and an unlocked position. The locking member retains the coupler in the receptacle in the locked position, and the locking member releases the coupler from the receptacle in the unlocked position. The fastening device also has a resilient member that urges the locking member toward the locked position, an actuation member that moves the locking member from the locked position to the unlocked position, and a ratchet assembly that maintains the locking member in the unlocked position.

Abstract: A system for applying a personal message to a heat resistant cameo that is intended to be included with a deceased person during a cremation process. The system includes a holder having a middle passage constructed and arranged to receive the cameo therein with the cameo having a predetermined inscription surface upon which a personal message can be inscribed; a transfer sheet with the holder retaining the transfer sheet and being constructed and arranged to stretch the transfer sheet over the inscription surface of the cameo; and a mask that is disposed over the transfer sheet. The mask has a middle hole therein that is aligned with the middle passage of the holder.

Abstract: Vision-assist devices and methods are disclosed. In one embodiment, a vision-assist device includes an image sensor for generating image data corresponding to a scene, a processor, and an inertia measuring unit. The inertia measuring unit is configured to measure forces acting on the image sensor and the orientation of the image sensor. The processor is configured to receive the image data from the image sensor and process the force and orientation of the image sensor so as to determine a tilt of the image sensor. The processor is further configured to process the image data based on at least the tilt of the at least one image sensor so as to generate a corrected image data, wherein the corrected image data does not include the tilt.

Abstract: A device (1) includes a first web of soft material (5), a projecting structure integral with the web and including multiple discrete projecting elements. The projecting elements include pieces of foam (3) spaced apart form one another and integral with the first web (5). The pieces of foam are compressed between the first web (5) and a second web (7) of soft material, the two webs mutually adhering between the projecting elements. The device is useful for treating various types of edemas and excessive tissue infiltration, as well as for repairing sports injury.

Abstract: Various embodiments described herein provide a mechanism for transducing transverse vibrational energy into an elastic body of a sexual stimulation device by directly driving the transverse modes of vibration of the elastic body. Additionally, by using an actuator that transduces a force that is proportional to the input current or voltage, the vibration may be driven with any arbitrary waveform.

Abstract: A system for assisting a rescuer in performing cardio-pulmonary resuscitation (CPR) on a patient includes: a proximity sensor configured to be positioned at a location corresponding to a location of a rescuer's hand when delivering compressions to a patient's chest, the proximity sensor configured to produce a signal indicative of the rescuer's hands being released from the patient's chest; a medical device operatively coupled with the proximity sensor and configured to provide resuscitative treatment to the patient; and a controller communicatively coupled with the medical device and the proximity sensor. The controller is configured to: determine, based upon the signal from the proximity sensor, if the rescuer's hands have been released from the patient's chest, and trigger an action by the medical device in response to a determination that the rescuer's hands have been released from the patient's chest.

Abstract: According to one embodiment, a system includes an acupressure device configured to apply pressure to one or more pressure points on a mammal. The system further includes a therapeutic substance coupled to the acupressure device.

Abstract: A closed fluid transfer system for fluidly interconnecting a syringe to any one of a patient I.V. set, a vial and an I.V. bag, is provided and includes a first adapter defining a lumen and supporting a seal across a first end of its lumen, the first adapter supporting a rear end of a needle within the lumen, wherein the seal is movable relative to the needle such that a tip of the needle penetrates through the seal; and a second adapter defining a lumen and supporting a seal across a first end of its lumen; wherein when the second adapter is coupled to the first adapter, the second adapter seal abuts the first adapter seal and moves the first adapter seal relative to the tip of the needle such that the tip of the needle penetrates through the abutting first adapter seal and second adapter seal.

Abstract: Devices for delivery of fluid compositions include a delivery device including an internally pierced blister in which the device includes a plunger configured to crush the blister and deliver the contents in a lateral direction with respect to the motion of a dispensing button. Certain devices are configured for oral delivery.

Abstract: This invention relates to modifications to the traditional manually operated pill counting tray that is broadly used throughout the world to provide features that permit semi-automatic operation that is faster and more accurate than manual-only operation when counting pharmaceutical pills. The tray modifications are based on electronic weight-based sensing technology including the addition of (1) a weighing load sensor to determine the weight of the pills to be counted, (2) a motion sensor and latch for the trough lid to aid operation and performance, (3) a microprocessor that can convert the measured weight of the pills to a pill count, and (4) an output display to show the number of pills counted. This apparatus includes novel features to improve pill counting speed and accuracy, as well as ease of use, that are only possible when employing electronic counting.

Abstract: A cap is configured to be securely attached to a bottle, such as a medication bottle, and includes a base having a first compartment that contains a power source and a second compartment that is below the first compartment. The second compartment is defined by a peripheral side wall that includes on an inner surface thereof one or more locking tabs. The cap also includes an insert that is configured to be received within the second compartment. The insert includes a peripheral side wall and further including inner threads that are configured to threadingly mate with outer threads of the bottle for securely attaching the cap to the bottle. The insert includes a locking lip that snap-fittingly mate with the one or more locking tabs to detachably attach the insert to the base within the second compartment.

Abstract: A solid cosmetic product includes an inner non-effervescent material having at least a coloring and a solid carrier material. The solid carrier material is a powder and the non-effervescent material does not effervesce on contact with water. An outer effervescent material is capable of effervescence on contact with water and envelops the inner non-effervescent material.

Abstract: Core-shell particles and methods of making and using thereof are described herein. The core is formed of or contains one or more hydrophobic materials or more hydrophobic materials. The shell is formed of or contains hyperbranched polyglycerol (HPG). The HPG coating can be modified to adjust the properties of the particles. Unmodified HPG coatings impart stealth properties to the particles which resist non-specific protein absorption and increase circulation in the blood. The hydroxyl groups on the HPG coating can be chemically modified to form functional groups that react with functional groups and adhere the particles to tissue, cells, or extracellular materials, such as proteins.

Abstract: An apparatus and method for depositing a particulate containing composition onto mammalian skin such that when the particles contact the mammalian skin they have a momentum defined by ?vr, which is within the range of about 0.1 kg/ms??vr?about 12.0 kg/ms. The particles can be in the range of from about 10 nanometers to about 10 micrometers, in size. And the particles may be selected from the group consisting of titanium dioxide, zinc oxide, iron oxide, polyethylene, polypropylene, polyethylene terephthalate, polycarbonate, polyvinyl chloride, glass, silica and mixtures thereof. The particles are imbedded below the first layer of dead skin cells in the stratum corneum but they do not pass all the way through the stratum corneum into the living cells of the epidermis or dermis layers of the skin.

Abstract: The present invention relates to a composite powder of jade powder and a porous polymer, and more specifically relates to a composite powder (jade sphere) in which jade powder particles are impregnated in a porous polymer, the composite powder being produced by spraying, in one step, a dispersion in which jade powder has been dispersed in a solution that dissolves porous polymers, and to a cosmetic composition containing the composite powder, and to a manufacturing method for the composite powder.

Abstract: The present invention is directed towards a cosmetic composition for making up and/or caring for keratin materials, in particular the skin and/or the lips, comprising: —at least one aqueous phase gelled with at least one synthetic polymeric hydrophilic gelling agent; and —at least one oily phase gelled with at least one lipophilic gelling agent chosen from particulate gelling agents, organopolysiloxane elastomers, semi-crystalline polymers and dextrin esters, and mixtures thereof; the said phases forming therein a macroscopically homogeneous mixture.

Abstract: The present invention is intended to provide an organic UV absorber-free, non-chemical sunscreen cosmetic that contains hydrophobized zinc oxide and/or hydrophobized titanium dioxide as a UV scattering agent, specifically an oil-in-water emulsion sunscreen cosmetic that provides excellent emulsion stability and an excellent pleasant feel while maintaining high levels of UV protection.

Abstract: A composition and method is provided for synthesizing silicone particles with narrow size distributions and tunable degrees of crosslinking for encapsulation of an active ingredient or multiple active ingredients in the matrix of the particles for controlled release. The method comprises agitating at least one type of silane monomer having two, three or four siloxane bonds in an acidic aqueous solution under conditions sufficient to allow for hydrolysis of the monomers, adding a catalyst and a solution comprising a co-solvent and the active ingredient(s) to the acidic aqueous solution, and continuing to agitate the combined solution to allow for a condensation reaction and formation of silicone particles with a narrow size distribution encapsulating at least a portion of the active ingredient(s). The tunable degree of crosslink density of the particles formed is based on the ratios of the monomers used, which enables controlled release of the active ingredient(s) from the particles.

Abstract: An improved erasable tattoo ink and a method and apparatus for removing tattoos using an energy transfer photodisruptive mechanism whereby efficiency of the transfer of energy from a low energy light source to a higher energy donor and then to a tattoo pigment molecule for photodecomposition of the ink color pigmentation is optimized.

Abstract: Present invention relates to an aqueous oxidizing composition for hair which makes possible achieving homogeneous coloration of multiple damaged hair and especially provides excellent grey coverage with oxidative hair dyes. The object of the invention is an aqueous oxidizing composition for hair comprising one or more oxidizing agent, one or more polyol, one or more oil, one or more solid fatty alcohol and one or more surfactant wherein fatty alcohol to oil weight ratio is less than 1, weight ratio of surfactant to sum of fatty alcohol and oil is less than 0.25 and polyol concentration is less than or equal to 2% by weight calculated to the total of the composition.

Abstract: Provided are a silicon oxide-coated zinc oxide, a method for producing the same, a composition and a cosmetic including a silicon oxide-coated zinc oxide. The silicon oxide-coated zinc oxide is a silicon oxide-coated zinc oxide formed by coating surfaces of zinc oxide particles with a silicon oxide coat, in which an average particle diameter of the zinc oxide particles is in a range of more than 50 nm and 500 nm or less, and, when an abundance ratio of silicon in the silicon oxide coat in a Q3 environment is indicated by Q3, and an abundance ratio in a Q4 environment is indicated by Q4, Q3+Q4?0.6 and Q4/(Q3+Q4)?0.5 are satisfied.

Abstract: Described herein are compositions comprising an unactivated liquid, an immobilized sparingly soluble acid or base, such that during storage the unactivated liquid is not in contact with the immobilized sparingly soluble acid or base, but upon use, the unactivated liquid contacts the immobilized sparingly soluble acid or base, whereby the pH of the liquid is altered, thereby activating the liquid to provide a benefit; together with variant and alternative designs, methods of making and using the compositions, and components thereof.

Abstract: Cosmetic compositions comprising water, at least one estolide ester compound of Formula (3) wherein n is from 1 to 10, preferably from 2 to 8, and R is selected from branched or linear C3-20-alkyl, and B) optionally at least one surfactant component B, C) optionally at least one thickener component C, D) optionally at least one hair conditioning component D, and E) optionally at least one further component E, different to A to D, can be used for improved hair treatment.

Abstract: A liquid fragrance composition consisting essentially of: cyclohexylidene phenyl acetonitrile; and one or more ingredients selected from the group consisting of cyclohexyl salicylate, MEFROSOL™ (3-methyl-5-phenyl-pentan-1-ol), HEDIONE™ (methyl 2-(3-oxo-2-pentylcyclopentyl)acetate), diethyl phthalate, isopropyl myristate, amyl salicylate, iso-amyl salicylate, benzyl salicylate, iso-bornyl salicylate, cis-3 hexenyl salicylate, ethyl salicylate, iso-butyl salicylate, methyl salicylate and phenylethyl salicylate; and optionally one or more of 3-methyl-5-phenylpentan-1-ol (MEFROSOL™); an alcohol comprising more than 3 carbon atoms selected from the group consisting of benzyl alcohol, 1-hexanol, 1-heptanol, 1-octanol, cyclohexanol, cyclohexyl propanol, methyl phenyl carbinol, phenyl ethyl alcohol and dimethyl benzyl carbinol; or a glycol ether.

Abstract: Traction alopecia and other disorders related to mechanical pulling on hair are treated or prevented by administering a topical composition comprising an alpha-1 adrenergic receptor agonist or another compound or electrical stimulation to contract the arrector pili muscle.

Abstract: The present disclosure relates to antiperspirant cosmetic agents, in the case of which the total amount of antiperspirant compounds can be clearly reduced without the antiperspirant effect of said agents or the storage stability of said agents being impaired, comprising—in each case with respect to the total weight of the antiperspirant cosmetic agent—a) 1 to 30 wt % of at least one antiperspirant compound, b) 0.1 to 10 wt % of salicylic acid, c) at least one compound of formula (I), in which n represents 0 or 1, X represents —H, Na+, K+, or NH4+, R1 is selected from —H, —COOX, or —(CH2)—COOX, R2 is selected from —H, C1-10 alkyl, or COOX, R3 is selected from —(CH2)—COOX, —(CH2)2-N[(CH2)—COOX]2, —CH(R1)—COOX, —(CH2)2-NH[CH(COOX)(CH2COOX)], —CH(R4)—C(R5)(R6)—COOX, R4 is selected from —H, C1-10 alkyl, or COOX, and R5 and R6 are, independently of each other, —H, —OH, or C1-10 alkyl.

Abstract: An oral care composition in the form of a toothpaste, tooth gel, dentifrice, tooth powder, prophy paste, mouthwash, rinse, tooth mousse, dental floss, chewing gum, soluble oral care strip or film for direct application or attachment to an oral surface, or lozenge for combating dental caries, erosion, hypersensitivity, and/or staining that includes an orally acceptable carrier and a copolymer of a first ?, ?-ethylenically unsaturated phosphate compound (A); and one or more ?, ?-ethylenically unsaturated co-monomers, at least one of which is other than an allyl-functional co-monomer, wherein (A) is an allyl phosphate compound of formula (A): [CH2?CH—CH2—O(R1O)a(R2O)b]xP(O)(OM)3-x??(A) wherein, R1 is a substituted or unsubstituted (C2-C4) alkylene moiety; R2 is a substituted or unsubstituted (C2-C4) alkylene moiety; M is identical or different, hydrogen, alkali metal, ammonium, protonated alkyl amine, protonated alkanolamine, or protonated basic amino acid; X is 1 or 2, a is from 1 to 20; and b is from 0 to 20

Abstract: The present invention provides regenerative formulations, such as regenerative creams and regenerative oils, methods for the manufacture of the regenerative formulations, and methods for using the regenerative formulations. The regenerative formulations comprise essential oils, moisturizers, stabilizers, preservatives, lubricants, and solvents, and can be used to restore hair.